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- Table of Contents
-
- 04-IP Multicast Volume
- 00-IP Multicast Volume Organization
- 01-Multicast Routing and Forwarding Commands
- 02-IGMP Commands
- 03-PIM Commands
- 04-MSDP Commands
- 05-MBGP Commands
- 06-Multicast VPN Commands
- 07-IGMP Snooping Commands
- 08-Multicast VLAN Commands
- 09-IPv6 Multicast Routing and Forwarding Commands
- 10-MLD Commands
- 11-IPv6 PIM Commands
- 12-IPv6 MBGP Commands
- 13-MLD Snooping Commands
- 14-IPv6 Multicast VLAN Commands
- Related Documents
-
| Title | Size | Download |
|---|---|---|
| 05-MBGP Commands | 184.02 KB |
Table of Contents
bestroute as-path-neglect (MBGP family view)
bestroute compare-med (MBGP family view)
bestroute med-confederation (MBGP family view)
compare-different-as-med (MBGP family view)
default local-preference (MBGP family view)
default med (MBGP family view)
default-route imported (MBGP family view)
display ip multicast routing-table
display ip multicast routing-table ip-address
display bgp multicast routing-table
display bgp multicast routing-table as-path-acl
display bgp multicast routing-table cidr
display bgp multicast routing-table community
display bgp multicast routing-table community-list
display bgp multicast routing-table dampened
display bgp multicast routing-table dampening parameter
display bgp multicast routing-table different-origin-as
display bgp multicast routing-table flap-info
display bgp multicast routing-table peer
display bgp multicast routing-table regular-expression
display bgp multicast routing-table statistic
filter-policy export (MBGP family view)
filter-policy import (MBGP Family view)
import-route (MBGP family view)
peer advertise-community (MBGP family view)
peer advertise-ext-community (MBGP family view)
peer allow-as-loop (MBGP family view)
peer as-path-acl (MBGP family view)
peer default-route-advertise (MBGP family view)
peer enable (MBGP family view)
peer filter-policy (MBGP family view)
peer ip-prefix (MBGP family view)
peer keep-all-routes (MBGP family view)
peer next-hop-local (MBGP family view)
peer preferred-value (MBGP family view)
peer public-as-only (MBGP family view)
peer reflect-client (MBGP family view)
peer route-limit (MBGP family view)
peer route-policy (MBGP family view)
reflect between-clients (MBGP family view)
reflector cluster-id (MBGP family view)
reset bgp ipv4 multicast dampening
reset bgp ipv4 multicast flap-info
summary automatic (MBGP family view)
1 MBGP Configuration Commands
l The term “router” in this document refers to a generic router or an Ethernet switch running routing protocols.
l For information about route policy commands, refer to Route Policy Commands in the IP Routing Volume.
MBGP Configuration Commands
aggregate (MBGP family view)
Syntax
aggregate ip-address { mask | mask-length } [ as-set | attribute-policy route-policy-name | detail-suppressed | origin-policy route-policy-name | suppress-policy route-policy-name ] *
undo aggregate ip-address { mask | mask-length }
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
ip-address: Summary address.
mask: Summary mask, in dotted decimal notation.
mask-length: Summary mask length, in the range 0 to 32.
as-set: Creates a summary with AS set.
attribute-policy route-policy-name: Sets the attributes of the summary route according to the route policy. The route policy name is a string of 1 to 19 characters.
detail-suppressed: Advertises the summary route only.
suppress-policy route-policy-name: Suppresses specific routes defined in the route policy. The route policy name is a string of 1 to 19 characters.
origin-policy route-policy-name: References the route policy to determine routes for summarization. The route policy name is a string of 1 to 19 characters.
The keywords of the command are described as follows:
Table 1-1 Functions of the keywords
|
Keywords |
Function |
|
as-set |
Used to create a summary route, whose AS path contains the AS path information of summarized routes. Use this keyword carefully when many AS paths need to be summarized, because the frequent changes of these specific routes may lead to route flaps. |
|
detail-suppressed |
This keyword does not suppress the summary route, but it suppresses the advertisement of all the more specific routes. To summarize only some specific routes, use the peer filter-policy command. |
|
suppress-policy |
Used to create a summary route and suppress the advertisement of some summarized routes. If you want to suppress some routes selectively and leave other routes still advertised, use the if-match clause of the route-policy command. |
|
origin-policy |
Selects only routes satisfying the route policy for route summarization |
|
attribute-policy |
Sets attributes except the AS-PATH attribute for the summary route. The same work can be done by using the peer route-policy command. |
Description
Use the aggregate command to create a summary route in the IPv4 MBGP routing table.
Use the undo aggregate command to remove a summary route.
By default, no summary route is configured.
Examples
# In IPv4 MBGP address family view, create a summary of 192.213.0.0/16 in the IPv4 MBGP routing table.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul]aggregate 10.40.0.0 255.255.0.0
balance (MBGP family view)
Syntax
balance number
undo balance
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
number: Number of MBGP routes for load balancing, in the range 1 to 4. When it is set to 1, load balancing is disabled.
Description
Use the balance command to configure the number of MBGP routes for load balancing.
Use the undo balance command to restore the default.
By default, no load balancing is configured.
Unlike IGP, MBGP has no explicit metric for making load balancing decision. Instead, it implements load balancing by using route selection rules.
Related commands: display ip multicast routing-table.
Examples
# In IPv4 MBGP address family view, set the number of routes for BGP load balancing to 2.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul]balance 2
bestroute as-path-neglect (MBGP family view)
Syntax
bestroute as-path-neglect
undo bestroute as-path-neglect
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
None
Description
Use the bestroute as-path-neglect command to configure MBGP not to consider the AS_PATH during best route selection.
Use the undo bestroute as-path-neglect command to restore the default.
By default, MBGP considers AS_PATH during best route selection.
Examples
# In IPv4 MBGP address family view, configure BGP to ignore the AS_PATH during best route selection.
[Sysname]bgp 100
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul]bestroute as-path-neglect
bestroute compare-med (MBGP family view)
Syntax
bestroute compare-med
undo bestroute compare-med
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
None
Description
Use the bestroute compare-med command to enable the comparison of the MED for paths from each AS during best route selection.
Use the undo bestroute compare-med command to disable this comparison.
The comparison is not enabled by default.
Examples
# In IPv4 MBGP address family view, enable the comparison of the MED for paths from each AS during best route selection.
[Sysname] bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] bestroute compare-med
bestroute med-confederation (MBGP family view)
Syntax
bestroute med-confederation
undo bestroute med-confederation
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
None
Description
Use the bestroute med-confederation command to enable the comparison of the MED for paths from confederation peers during best route selection.
Use the undo bestroute med-confederation command to disable the comparison.
The comparison is not enabled by default.
The system only compares MED values for paths from peers within the confederation. Paths from external ASs are advertised throughout the confederation without MED comparison.
Examples
# In IPv4 MBGP address family view, enable the comparison of the MED for paths from peers within the confederation.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] bestroute med-confederation
compare-different-as-med (MBGP family view)
Syntax
compare-different-as-med
undo compare-different-as-med
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
None
Description
Use the compare-different-as-med command to enable the comparison of the MED for paths from peers in different ASs.
Use the undo compare-different-as-med command to disable the comparison.
The comparison is disabled by default.
If several paths to one destination are available, the path with the smallest MED is selected.
Do not use this command unless associated ASs adopt the same IGP and routing selection method.
Examples
# In IPv4 MBGP address family view, enable the comparison of the MED for paths from peers in different ASs.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul]compare-different-as-med
dampening (MBGP family view)
Syntax
dampening [ half-life-reachable half-life-unreachable reuse suppress ceiling | route-policy route-policy-name ] *
undo dampening
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
half-life-reachable: Specifies a half-life for active routes from 1 to 45 minutes. By default, the value is 15 minutes.
half-life-unreachable: Specifies a half-life for suppressed routes from 1 to 45 minutes. By default, the value is 15 minutes.
reuse: Specifies a reuse threshold value for suppressed routes from 1 to 20000. A suppressed route whose penalty value decreases under the value is reused. By default, the reuse value is 750.
suppress: Specifies a suppression threshold from 1 to 20000. The route with a penalty value higher than the threshold is suppressed. The default value is 2000.
ceiling: Specifies a ceiling penalty value from 1001 to 20000. The value must be greater than the suppress value. By default, the value is 16000.
route-policy-name: Route policy name, a string of 1 to 19 characters.
Description
Use the dampening command to configure IPv4 MBGP route dampening.
Use the undo dampening command to disable route dampening.
By default, no IPv4 MBGP route dampening is configured.
The command dampens only EBGP routes rather than IBGP routes.
Examples
# In IPv4 MBGP address family view, configure IPv4 MBGP route dampening.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul]dampening 15 15 1000 2000 10000
default local-preference (MBGP family view)
Syntax
default local-preference value
undo default local-preference
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
value: Default local preference, in the range 0 to 4294967295. The larger the value is, the higher the preference is.
Description
Use the default local-preference command to configure the default local preference.
Use the undo default local-preference command to restore the default.
By default, the default local preference is 100.
Using this command can affect MBGP route selection.
Examples
# In IPv4 MBGP address family view, set the default local preference to 180.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul]default local-preference 180
default med (MBGP family view)
Syntax
default med med-value
undo default med
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
med-value: Default MED value, in the range 0 to 4294967295.
Description
Use the default med command to specify the default MED value.
Use the undo default med command to restore the default.
By default, the default MED value is 0.
Multi-exit discriminator (MED) is an external metric for routes. Different from local preference, MED is exchanged between ASs and will stay in the AS once it enters the AS. The route with a lower MED is preferred. When a router running BGP obtains several routes with an identical destination but different next-hops from various external peers, it will select the best route depending on the MED value. In the case that all other conditions are the same, the system selects the route with the smallest MED as the best external route.
Examples
# In IPv4 MBGP address family view, configure the default MED as 25.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul]default med 25
default-route imported (MBGP family view)
Syntax
default-route imported
undo default-route imported
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
None
Description
Use the default-route imported command to allow default route redistribution into the MBGP routing table.
Use the undo default-route imported command to restore the default.
By default, default route redistribution is not allowed.
Using the default-route imported command cannot redistribute default routes. To do so, use the import-route command.
Related commands: import-route.
Examples
# In IPv4 MBGP address family view, allow default route redistribution from OSPF into MBGP.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] default-route imported
[Sysname-bgp-af-mul] import-route ospf 1
display ip multicast routing-table
Syntax
display ip multicast routing-table [ verbose]
View
Any view
Default Level
2: Monitor level
Parameters
verbose: Displays the detailed information of the multicast routing table, including both inactive and active multicast routes. Without the keyword, the command displays brief information about only the active MBGP routes.
Description
Use the display ip multicast routing-table command to display the multicast BGP routing table.
All the active MBGP routes in the MBGP routing table are used for RPF check, but inactive MBGP routes are not.
Examples
# Display brief information about the active routes in the multicast BGP routing table.
<Sysname> display ip multicast routing-table
Routing Tables: Public
Destinations : 6 Routes : 6
Destination/Mask Proto Pre Cost NextHop Interface
2.2.2.0/24 Direct 0 0 2.2.2.1 Vlan-interface2
2.2.2.1/32 Direct 0 0 127.0.0.1 InLoopBack0
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoopBack0
192.168.80.0/24 Direct 0 0 192.168.80.10 Vlan-interface1
192.168.80.10/32 Direct 0 0 127.0.0.1 InLoopBack0
Table 1-2 display ip multicast routing-table command output description
|
Field |
Description |
|
Destinations |
Number of destinations |
|
Routes |
Number of routes |
|
Destination/Mask |
Destination address /Mask length |
|
Proto |
Routing protocol that discovered the route |
|
Pre |
Route preference |
|
Cost |
Route cost |
|
Nexthop |
Next hop of the route |
|
Interface |
Outgoing interface to reach the destination |
# Display the detailed information of the multicast routing table.
<Sysname> display ip multicast routing-table verbose
Routing Table : Public
Destinations : 2 Routes : 2
Destination: 192.168.80.0/24
Protocol: Direct Process ID: 0
Preference: 0 Cost: 0
NextHop: 192.168.80.10 Interface: Vlan-interface1
RelyNextHop: 0.0.0.0 Neighbour: 0.0.0.0
Tunnel ID: 0x0 Label: NULL
State: Active Adv Age: 00h14m49s
Tag: 0
Destination: 192.168.80.10/32
Protocol: Direct Process ID: 0
Preference: 0 Cost: 0
NextHop: 127.0.0.1 Interface: InLoopBack0
RelyNextHop: 0.0.0.0 Neighbour: 0.0.0.0
Tunnel ID: 0x0 Label: NULL
State: Active NoAdv Age: 00h14m49s
Tag: 0
Table 1-3 display ip multicast routing-table verbose command output description
|
Field |
Description |
|
Destination |
Destination/mask |
|
Protocol |
Routing protocol that discovered the route |
|
Process ID |
Process ID |
|
Preference |
Route preference |
|
Cost |
Route cost |
|
NextHop |
Nexthop of the route |
|
Interface |
Outgoing interface to reach the destination |
|
RelyNextHop |
Recursive next hop |
|
Neighbour |
Neighbor address |
|
Tunnel ID |
Tunnel ID |
|
Label |
Label |
|
State |
Route state: Active, Inactive, Adv (can be advertised), NoAdv (cannot be advertised) |
|
Age |
Age of the route, in the sequence of hour, minute, and second from left to right. |
|
Tag |
Route tag |
display ip multicast routing-table ip-address
Syntax
display ip multicast routing-table ip-address [mask-length |mask ] [ longer-match ] [ verbose ]
View
Any view
Default Level
2: Monitor level
Parameters
ip-address: Destination IP address, in dotted decimal format.
mask-length: IP address mask length in the range 0 to 32.
mask: IP address mask in dotted decimal format.
longer-match: Displays the route with the longest mask.
verbose: Displays detailed information about both active and inactive routes. With this argument absent, the command displays only brief information about active routes.
Description
Use the display ip multicast routing-table command to display information about multicast routes to a specified destination address.
Executing the command with different parameters yields different outputs:
display ip multicast routing-table ip-address
It displays all multicast routes falling into the natural network of the IP address. If no such multicast routes are available, it displays only the longest matched active multicast route.
display ip multicast routing-table ip-address mask
It displays the multicast route exactly matching the IP address and mask.
Examples
# Display brief information about all multicast routes falling into the natural network of the IP address (A multicast route is available).
<Sysname> display ip multicast routing-table 169.0.0.0
Routing Table : Public
Summary Count : 1
Destination/Mask Proto Pre Cost NextHop Interface
169.0.0.0/16 Static 60 0 2.1.1.1 LoopBack1
# Display brief information about the longest matched active multicast route (No multicast route falls into the natural network of the IP address).
<Sysname> display ip multicast routing-table 169.253.0.0
Routing Table : Public
Summary Count : 1
Destination/Mask Proto Pre Cost NextHop Interface
169.0.0.0/8 Static 60 0 2.1.1.1 LoopBack1
# Display detailed information about multicast routes falling into the natural network of the IP address (A multicast route is available).
<Sysname> display ip multicast routing-table 2.2.2.1 verbose
Routing Table : Public
Summary Count : 1
Destination: 2.2.2.1/32
Protocol: Direct Process ID: 0
Preference: 0 Cost: 0
NextHop: 127.0.0.1 Interface: InLoopBack0
RelyNextHop: 0.0.0.0 Neighbour: 0.0.0.0
Tunnel ID: 0x0 Label: NULL
State: Active NoAdv Age: 05h38m46s
Tag: 0
# Display detailed information about the longest matched active multicast route (No multicast route falls into the natural network of the IP address).
<Sysname> display ip multicast routing-table 169.253.2.1 verbose
Routing Table : Public
Summary Count : 1
Destination: 169.0.0.0/8
Protocol: Direct Process ID: 0
Preference: 0 Cost: 0
NextHop: 169.1.1.1 Interface: Vlan-interface1
RelyNextHop: 0.0.0.0 Neighbour: 0.0.0.0
Tunnel ID: 0x0 Label: NULL
State: Active Adv Age: 00h00m32s
Tag: 0
display bgp multicast group
Syntax
display bgp multicast group [ group-name ]
View
Any view
Default Level
2: Monitor level
Parameters
group-name: MBGP peer group name, a string of 1 to 47 characters.
Description
Use the display bgp multicast group command to display IPv4 MBGP peer group information.
Examples
# Display the information of the IPv4 MBGP peer group aaa.
<Sysname> display bgp multicast group aaa
BGP peer-group is aaa
remote AS 200
Type : external
Maximum allowed prefix number: 4294967295
Threshold: 75%
Configured hold timer value: 180
Keepalive timer value: 60
Minimum time between advertisement runs is 30 seconds
Peer Preferred Value: 0
No routing policy is configured
Members:
Peer V AS MsgRcvd MsgSent OutQ PrefRcv Up/Down State
2.2.2.1 4 200 0 0 0 0 00:00:35 Active
Table 1-4 display bgp multicast group command output description
|
Field |
Description |
|
BGP peer-group |
Name of the peer group |
|
remote AS |
AS number of the peer group |
|
Type |
Type of the peer group: IBGP or EBGP |
|
Maximum allowed prefix number |
Maximum allowed prefix number |
|
Threshold |
Percentage of received prefixes from the peer group to maximum prefixes allowed to receive from the peer group; If the percentage is reached, the system generates alarm messages. |
|
Configured hold timer value |
Holdtime interval |
|
Keepalive timer value |
Keepalive interval |
|
Minimum time between advertisement runs |
Minimum interval for route advertisement |
|
Peer Preferred Value |
Preferred value specified for the routes from the peer |
|
No routing policy is configured |
No route policy is configured. |
|
Members |
Detailed information of the members in the peer group |
|
Peer |
IPv4 address of the peer |
|
V |
BGP version running on the peer |
|
AS |
AS number of the peer |
|
MsgRcvd |
Number of messages received |
|
MsgSent |
Number of messages sent |
|
OutQ |
Number of messages to be sent |
|
PrefRcv |
Number of prefixes received |
|
Up/Down |
Time elapsed |
|
State |
State machine of the peer |
display bgp multicast network
Syntax
display bgp multicast network
View
Any view
Default Level
2: Monitor level
Parameters
None
Description
Use the display bgp multicast network command to display IPv4 MBGP routing information advertised with the network command.
Examples
# Display IPv4 MBGP routing information advertised with the network command.
<Sysname> display bgp multicast network
BGP Local Router ID is 10.1.4.2.
Local AS Number is 400.
Network Mask Route-policy Short-cut
100.1.2.0 255.255.255.0
100.1.1.0 255.255.255.0 Short-cut
Table 1-5 display bgp multicast network command output description
|
Field |
Description |
|
BGP Local Router ID |
BGP Local Router ID |
|
Local AS Number |
Local AS Number |
|
Network |
Network address |
|
Mask |
Mask |
|
Route-policy |
Route policy referenced |
|
Short-cut |
Short-cut route |
display bgp multicast paths
Syntax
display bgp multicast paths [ as-regular-expression ]
View
Any view
Default Level
2: Monitor level
Parameters
as-regular-expression: AS path regular expression, a string of 1 to 80 case-sensitive characters, including spaces.
Description
Use the display bgp multicast paths command to display the AS path information of IPv4 MBGP routes.
Examples
# Display the AS path information of IPv4 MBGP routes.
<Sysname> display bgp multicast paths ^200
Address Hash Refcount MED Path/Origin
0x5917100 11 1 200 300i
Table 1-6 display bgp multicast paths command output description
|
Field |
Description |
|
|
Address |
Route address in the local database, in dotted hexadecimal notation |
|
|
Hash |
Hash index |
|
|
Refcount |
Count of routes that reference the path |
|
|
MED |
MED of the path |
|
|
Path |
AS_PATH attribute of the path, recording the ASs it has passed to avoid routing loops |
|
|
Origin |
Origin attribute of the path: |
|
|
i |
Indicates the route is interior to the AS. Summary routes and routes injected using the network command are considered IGP routes. |
|
|
e |
Indicates the route is learned from the Exterior Gateway Protocol (EGP). |
|
|
? |
Indicates the origin of the route is unknown. Routes redistributed from other routing protocols have this origin attribute. |
|
display bgp multicast peer
Syntax
display bgp multicast peer [ ip-address ] [ verbose ]
View
Any view
Default Level
2: Monitor level
Parameters
ip-address: IP address of an IPv4 MBGP peer to be displayed, in dotted decimal notation.
verbose: Displays the detailed information of the peer/peer group.
Description
Use the display bgp multicast peer command to display IPv4 MBGP peer information.
Examples
# Display the detailed information of the IPv4 MBGP peer 10.110.25.20.
<Sysname> display bgp multicast peer 10.110.25.20 verbose
Peer: 10.110.25.20 Local: 2.2.2.2
Type: EBGP link
BGP version 4, remote router ID 1.1.1.1
BGP current state: Established, Up for 00h01m51s
BGP current event: RecvKeepalive
BGP last state: OpenConfirm
Port: Local - 1029 Remote - 179
Configured: Active Hold Time: 180 sec Keepalive Time: 60 sec
Received : Active Hold Time: 180 sec
Negotiated: Active Hold Time: 180 sec
Peer optional capabilities:
Peer support bgp multi-protocol extended
Peer support bgp route refresh capability
Address family IPv4 Unicast: advertised and received
Received: Total 5 messages, Update messages 1
Sent: Total 4 messages, Update messages 0
Maximum allowed prefix number: 4294967295
Threshold: 75%
Minimum time between advertisement runs is 30 seconds
Optional capabilities:
Route refresh capability has been enabled
Peer Preferred Value: 0
BFD: Enabled
Routing policy configured:
No routing policy is configured
Table 1-7 display bgp multicast peer command output description
|
Field |
Description |
|
Peer |
IP address of the peer |
|
Local |
Local router ID |
|
Type |
Peer type |
|
BGP version |
BGP version |
|
remote router ID |
Router ID of the peer |
|
BGP current state |
Current state of the peer |
|
BGP current event |
Current event of the peer |
|
BGP last state |
Previous state of the peer |
|
Port |
TCP port numbers |
|
Configured: Active Hold Time |
Local holdtime interval |
|
Keepalive Time |
Local keepalive interval |
|
Received: Active Hold Time |
Remote holdtime interval |
|
Negotiated: Active Hold Time |
Negotiated holdtime interval |
|
Peer optional capabilities |
Optional capabilities supported by the peer, including multiprotocol BGP extensions and route refresh |
|
Address family IPv4 Unicast |
Routes are advertised and received in IPv4 unicasts. |
|
Received |
Total numbers of received packets and updates |
|
Sent |
Total numbers of sent packets and updates |
|
Maximum allowed prefix number |
Maximum allowed prefix number |
|
Threshold |
Threshold value |
|
Minimum time between advertisement runs |
Minimum route advertisement interval |
|
Optional capabilities |
Optional capabilities enabled by the peer |
|
Peer Preferred Value |
Preferred value specified for the routes from the peer |
|
BFD |
Status of BGP (enabled/disabled) |
|
Routing policy configured |
Local route policy |
display bgp multicast routing-table
Syntax
display bgp multicast routing-table [ ip-address [ { mask | mask-length } [ longer-prefixes ] ] ]
View
Any view
Default Level
1: Monitor level
Parameters
ip-address: Destination IP address.
mask: Network mask, in dotted decimal notation.
mask-length: Mask length, in the range 0 to 32.
longer-prefixes: Matches the longest prefix.
Description
Use the display bgp multicast routing-table command to display IPv4 MBGP routing information.
Examples
# Display the IPv4 MBGP routing table.
<Sysname> display bgp multicast routing-table
Total Number of Routes: 1
BGP Local router ID is 10.10.10.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 40.40.40.0/24 20.20.20.1 0 200 300i
Table 1-8 display bgp multicast routing-table command output description
|
Field |
Description |
|
|
Total Number of Routes |
Total Number of Routes |
|
|
BGP Local router ID |
BGP local router ID |
|
|
Status codes |
Status codes: * – valid > – best d – damped h – history i – internal s – suppressed S – Stale |
|
|
Origin |
i – IGP (originated in the AS) e – EGP (learned through EGP) ? – incomplete (learned by some other means) |
|
|
Network |
Destination network address |
|
|
Next Hop |
Next hop |
|
|
MED |
MULTI_EXIT_DISC attribute |
|
|
LocPrf |
Local preference value |
|
|
PrefVal |
Preferred value of the route |
|
|
Path |
AS_PATH attribute, recording the ASs the packet has passed to avoid routing loops |
|
|
Ogn |
Origin attribute of the route, which can be one of the following values: |
|
|
i |
Indicates that the route is interior to the AS. Summary routes and the routes injected with the network command are considered IGP routes. |
|
|
e |
Indicates that the route is learned from the Exterior Gateway Protocol (EGP). |
|
|
? |
Short for INCOMPLETE. It indicates that the origin of the route is unknown and the route is learned by some other means. BGP marks routes redistributed from IGP as incomplete. |
|
display bgp multicast routing-table as-path-acl
Syntax
display bgp multicast routing-table as-path-acl as-path-acl-number
View
Any view
Default Level
2: Monitor level
Parameters
as-path-acl-number: Displays IPv4 MBGP routing information matching the AS path ACL, which is specified with a number from 1 to 256.
Description
Use the display bgp multicast routing-table as-path-acl command to display IPv4 MBGP routes matching an AS-path ACL.
Examples
# Display IPv4 MBGP routes matching AS path ACL 1.
<Sysname> display bgp multicast routing-table as-path-acl 1
BGP Local router ID is 20.20.20.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 40.40.40.0/24 30.30.30.1 0 0 300i
Refer to Table 1-8 for description on the fields above.
display bgp multicast routing-table cidr
Syntax
display bgp multicast routing-table cidr
View
Any view
Default Level
2: Monitor level
Parameters
None
Description
Use the display bgp multicast routing-table cidr command to display IPv4 MBGP Classless Inter-Domain Routing (CIDR) routing information.
Examples
# Display IPv4 MBGP CIDR routing information.
<Sysname> display bgp multicast routing-table cidr
Total Number of Routes: 1
BGP Local router ID is 20.20.20.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 40.40.40.0/24 30.30.30.1 0 0 300i
Refer to Table 1-8 for description on the fields above.
display bgp multicast routing-table community
Syntax
display bgp multicast routing-table community [ aa:nn ]&<1-13> [ no-advertise | no-export | no-export-subconfed ] * [ whole-match ]
View
Any view
Default Level
2: Monitor level
Parameters
aa:nn: Community number. Both aa and nn are in the range 0 to 65535.
&<1-13>: Argument before it can be entered up to 13 times.
no-advertise: Displays MBGP routes that cannot be advertised to any peer.
no-export: Displays MBGP routes that cannot be advertised out the AS. If a confederation is configured, it displays routes that cannot be advertised out the confederation, but can be advertised to other sub ASs in the confederation.
no-export-subconfed: Displays MBGP routes that cannot be advertised out the AS or to other sub ASs in the confederation.
whole-match: Displays the MBGP routes exactly matching the specified community attributes.
Description
Use the display bgp multicast routing-table community command to display IPv4 MBGP routing information with the specified BGP community attribute.
Examples
# Display IPv4 MBGP routing information with the specified BGP community attribute.
<Sysname> display bgp multicast routing-table community 11:22
BGP Local router ID is 10.10.10.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 10.10.10.0/24 0.0.0.0 0 0 i
*> 40.40.40.0/24 20.20.20.1 0 200 300i
Refer to Table 1-8 for description on the fields above.
display bgp multicast routing-table community-list
Syntax
display bgp multicast routing-table community-list { basic-community-list-number [ whole-match ] | adv-community-list-number }&<1-16>
View
Any view
Default Level
2: Monitor level
Parameters
basic-community-list-number: Specifies a basic community-list number from 1 to 99.
adv-community-list-number: Specifies an advanced community-list number from 100 to 199.
whole-match: Displays routes exactly matching the specified basic-community-list.
&<1-16>: Specifies the argument before it can be entered up to 16 times.
Description
Use the display bgp multicast routing-table community-list command to display IPv4 MBGP routing information matching the specified BGP community list.
Examples
# Display MBGP routing information matching the community list 100.
<Sysname> display bgp multicast routing-table community-list 100
BGP Local router ID is 1.2.3.4
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
Network NextHop Metric LocPrf PrefVal Path
*> 3.3.3.0/30 1.2.3.4 0 ?
*> 4.4.0.0/20 1.2.3.4 0 ?
*> 4.5.6.0/26 1.2.3.4 0 ?
BGP Local router ID is 30.30.30.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 30.30.30.0/24 0.0.0.0 0 0 i
*> 40.40.40.0/24 0.0.0.0 0 0 i
Refer to Table 1-8 for description on the fields above.
display bgp multicast routing-table dampened
Syntax
display bgp multicast routing-table dampened
View
Any view
Default Level
2: Monitor level
Parameters
None
Description
Use the display bgp multicast routing-table dampened command to display dampened IPv4 MBGP routes.
Examples
# Display dampened IPv4 MBGP routes.
<Sysname> display bgp multicast routing-table dampened
BGP Local router ID is 2.2.2.2
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network From Reuse Path/Origin
*d 77.0.0.0 12.1.1.1 00:29:20 100?
Table 1-9 display bgp multicast routing-table dampened command output description
|
Field |
Description |
|
From |
IP address from which the route was received |
|
Reuse |
Reuse time of the route |
Refer to Table 1-8 for description on the other fields above.
display bgp multicast routing-table dampening parameter
Syntax
display bgp multicast routing-table dampening parameter
View
Any view
Default Level
2: Monitor level
Parameters
None
Description
Use the display bgp multicast routing-table dampening parameter command to display IPv4 MBGP route dampening parameters.
Related commands: dampening.
Examples
# Display IPv4 MBGP route dampening parameters.
<Sysname> display bgp multicast routing-table dampening parameter
Maximum Suppress Time(in second) : 3069
Ceiling Value : 16000
Reuse Value : 750
Reach HalfLife Time(in second) : 900
Unreach HalfLife Time(in second): 900
Suppress-Limit : 2000
Table 1-10 display bgp multicast routing-table dampening parameter command output description
|
Field |
Description |
|
Maximum Suppress Time |
Maximum Suppress Time |
|
Ceiling Value |
Ceiling penalty value |
|
Reuse Value |
Reuse value |
|
HalfLife Time |
Half-life time of active routes |
|
Suppress-Limit |
Threshold at which a route is suppressed |
display bgp multicast routing-table different-origin-as
Syntax
display bgp multicast routing-table different-origin-as
View
Any view
Default Level
2: Monitor level
Parameters
None
Description
Use the display bgp multicast routing-table different-origin-as command to display IPv4 MBGP routes originating from different autonomous systems.
Examples
# Display IPv4 MBGP routes originating from different autonomous systems.
<Sysname> display bgp multicast routing-table different-origin-as
BGP Local router ID is 2.2.2.2
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 55.0.0.0 12.1.1.1 0 0 100?
* 14.1.1.2 0 0 300?
Refer to Table 1-8 for description on the fields above.
display bgp multicast routing-table flap-info
Syntax
display bgp multicast routing-table flap-info [ regular-expression as-regular-expression | as-path-acl as-path-acl-number | ip-address [ { mask | mask-length } [ longer-match ] ] ]
View
Any view
Default Level
2: Monitor level
Parameters
as-regular-expression: Displays route flap information that matches the AS path regular expression.
as-path-acl-number: Displays route flap information matching the AS path ACL. The number is in the range 1 to 256.
ip-address: Destination IP address.
mask: Mask, in dotted decimal notation.
mask-length: Mask length, in the range 0 to 32.
longer-match: Matches the longest prefix.
Description
Use the display bgp multicast routing-table flap-info command to display IPv4 MBGP route flap statistics. If no parameter is specified, this command displays all IPv4 MBGP route flap statistics.
Examples
# Display IPv4 MBGP route flap statistics.
<Sysname> display bgp multicast routing-table flap-info
BGP Local router ID is 2.2.2.2
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network From Flaps Duration Reuse Path/Origin
*> 55.0.0.0 12.1.1.1 2 00:00:16 100?
*d 77.0.0.0 12.1.1.1 5 00:34:02 00:27:08 100?
Table 1-11 display bgp multicast routing-table flap-info command output description
|
Field |
Description |
|
From |
Source IP address of the route |
|
Flaps |
Number of routing flaps |
|
Duration |
Route flap duration |
|
Reuse |
Reuse time of the route |
Refer to Table 1-8 for description on the other fields above.
display bgp multicast routing-table peer
Syntax
display bgp multicast routing-table peer ip-address { advertised-routes | received-routes } [ network-address [ mask | mask-length ] | statistic ]
View
Any view
Default Level
2: Monitor level
Parameters
ip-address: IP address of an IPv4 MBGP peer.
advertised-routes: Displays routing information advertised to the specified peer.
received-routes: Displays routing information received from the specified peer.
network-address: IP address of the destination network.
mask: Mask of the destination network, in dotted decimal notation.
mask-length: Mask length, in the range 0 to 32.
statistic: Displays route statistics.
Description
Use the display bgp multicast routing-table peer command to display IPv4 MBGP routing information advertised to or received from the specified IPv4 MBGP peer.
Related commands: display bgp multicast peer.
Examples
# Display IPv4 MBGP routing information advertised to the peer 20.20.20.1.
<Sysname> display bgp multicast routing-table peer 20.20.20.1 advertised-routes
Total Number of Routes: 2
BGP Local router ID is 30.30.30.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 30.30.30.0/24 0.0.0.0 0 0 i
*> 40.40.40.0/24 0.0.0.0 0 0 i
Refer to Table 1-8 for description on the fields above.
display bgp multicast routing-table regular-expression
Syntax
display bgp multicast routing-table regular-expression as-regular-expression
View
Any view
Default Level
2: Monitor level
Parameters
as-regular-expression: AS path regular expression, a string of 1 to 80 case-sensitive characters, including spaces.
Description
Use the display bgp multicast routing-table regular-expression command to display IPv4 MBGP routing information matching the specified AS path regular expression.
Examples
# Display IPv4 MBGP routing information matching AS path regular expression 300$.
<Sysname> display bgp multicast routing-table regular-expression 300$
BGP Local router ID is 20.20.20.1
Status codes: * - valid, > - best, d - damped,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
Network NextHop MED LocPrf PrefVal Path/Ogn
*> 40.40.40.0/24 30.30.30.1 0 0 300i
Refer to Table 1-8 for description on the fields above.
display bgp multicast routing-table statistic
Syntax
display bgp multicast routing-table statistic
View
Any view
Default Level
2: Monitor level
Parameters
None
Description
Use the display bgp multicast routing-table statistic command to display IPv4 MBGP routing statistics.
Examples
# Display IPv4 MBGP routing statistics.
<Sysname> display bgp multicast routing-table statistic
Total Number of Routes: 4
Table 1-12 display bgp multicast routing-table statistic command output description
|
Field |
Description |
|
Total Number of Routes |
Total Number of Routes |
filter-policy export (MBGP family view)
Syntax
filter-policy { acl-number | ip-prefix ip-prefix-name } export [ direct | isis process-id | ospf process-id | rip process-id | static ]
undo filter-policy export [ direct | isis process-id | ospf process-id | rip process-id | static ]
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
acl-number: Number of an ACL used to filter outgoing routing information, ranging from 2000 to 3999.
ip-prefix-name: Name of an IP prefix list used to filter outgoing routing information, a string of 1 to 19 characters.
direct: Filters direct routes.
isis process-id: Filters outgoing routes redistributed from an ISIS process. The process ID is in the range 1 to 65535.
ospf process-id: Filters outgoing routes redistributed from the OSPF process with an ID from 1 to 65535.
rip process-id: Filters outgoing routes redistributed from a RIP process. The process ID is in the range 1 to 65535.
static: Filters static routes.
Description
Use the filter-policy export command to configure the filtering of outgoing routes.
Use the undo filter-policy export command to remove the filtering.
By default, the filtering is not configured.
If no routing protocol is specified, all redistributed routes are filtered.
Examples
# In IPv4 MBGP address family view, reference ACL 2000 to filter all outgoing routes.
[Sysname]bgp 100
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul] filter-policy 2000 export
filter-policy import (MBGP Family view)
Syntax
filter-policy { acl-number | ip-prefix ip-prefix-name } import
undo filter-policy import
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
acl-number: Number of an ACL used to filter incoming routing information, ranging from 2000 to 3999.
ip-prefix-name: Name of an IP prefix list used to filter incoming routing information, a string of 1 to 19 characters.
Description
Use the filter-policy import command to configure the filtering of incoming routing information.
Use the undo filter-policy import command to disable the filtering.
By default, incoming routing information is not filtered.
Examples
# In IPv4 MBGP address family view, reference ACL 2000 to filter incoming routing information.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] filter-policy 2000 import
import-route (MBGP family view)
Syntax
import-route protocol [ process-id [ med med-value | route-policy route-policy-name ] * ]
undo import-route protocol [ process-id ]
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
protocol: Redistributes routes from the routing protocol, which can be direct, isis, nat, ospf, rip or static at present.
process-id: Process ID, in the range 1 to 65535. It is available only when the protocol is isis, ospf or rip.
med-value: Specifies a MED value for redistributed routes, ranging from 0 to 4294967295. If the argument is not specified, the cost of a redistributed route is used as its MED in the BGP routing domain.
route-policy-name: Name of a route policy used to filter redistributed routes, a string of 1 to 19 characters.
Description
Use the import-route command to enable route redistribution from a specified routing protocol.
Use the undo import-route command to disable route redistribution from a routing protocol.
By default, MBGP does not redistribute routes from other protocols.
The origin attribute of routes redistributed with the import-route command is incomplete.
Examples
# In IPv4 MBGP address family view, enable route redistribution from RIP.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] import-route rip
ipv4-family multicast
Syntax
ipv4-family multicast
undo ipv4-family multicast
View
BGP view
Default Level
2: System level
Parameters
None
Description
Use the ipv4-family multicast command to enter IPv4 MBGP address family view.
Use the undo ipv4-family multicast command to remove all the settings made in IPv4 MBGP address family view.
Examples
# Enter IPv4 MBGP address family view.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul]
network (MBGP family view)
Syntax
network ip-address [ mask | mask-length ] [ short-cut | route-policy route-policy-name ]
undo network ip-address [ mask | mask-length ] [ short-cut ]
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
ip-address: Destination IP address.
mask: Mask of the network address, in dotted decimal notation.
mask-length: Mask length, in the range 0 to 32.
short-cut: Specifies the route to use the local preference. If the route is an EBGP route whose preference is higher than the local preference, using this keyword can configure the EBGP route to use the local preference, and thus the route can hardly become the optimal route.
route-policy-name: Route policy applied to the route. The name is a string of 1 to 19 characters.
Description
Use the network command to inject a network to the IPv4 MBGP routing table.
Use the undo network command to remove a network from the IPv4 MBGP routing table.
By default, no network route is injected.
Note that:
l The network route to be injected must exist in the local IP routing table, and using a route policy makes route management more flexible.
l The origin attribute of the network route injected with the network command is IGP.
Examples
# In IPv4 MBGP address family view, inject the network 10.0.0.0/16.
[Sysname]bgp 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] network 10.0.0.1 255.255.0.0
peer advertise-community (MBGP family view)
Syntax
peer { group-name | ip-address } advertise-community
undo peer { group-name | ip-address } advertise-community
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
Description
Use the peer advertise-community command to advertise the community attribute to a peer/peer group.
Use the undo peer advertise-community command to disable the community attribute advertisement to a peer/peer group.
By default, no community attribute is advertised to any peer group/peer.
Related commands: ip community-list, if-match community, apply community (refer to Route policy Commands in the IP Routing Volume).
Examples
# In IPv4 MBGP address family view, advertise the community attribute to the existing peer group test.
[Sysname]bgp 100
[Sysname-bgp]group test external
[Sysname-bgp]peer test as-number 200
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test advertise-community
peer advertise-ext-community (MBGP family view)
Syntax
peer { group-name | ip-address } advertise-ext-community
undo peer { group-name | ip-address } advertise-ext-community
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
Description
Use the peer advertise-ext-community command to advertise the extended community attribute to a peer/peer group.
Use the undo peer advertise-ext-community command to disable the extended community attribute advertisement to a peer/peer group.
By default, no extended community attribute is advertised to a peer/peer group.
For related information, refer to the ip extcommunity-list, if-match extcommunity and apply extcommunity commands in Route policy Commands of the IP Routing Volume.
Examples
# In IPv4 MBGP address family view, advertise the extended community attribute to the existing peer group test.
[Sysname]bgp 100
[Sysname-bgp]group test external
[Sysname-bgp]peer test as-number 200
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test advertise-ext-community
peer allow-as-loop (MBGP family view)
Syntax
peer { group-name | ip-address } allow-as-loop [ number ]
undo peer { group-name | ip-address } allow-as-loop
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
number: Specifies the number of times the local AS number can appear in routes from the peer/peer group, in the range 1 to 10. The default number is 1.
Description
Use the peer allow-as-loop command to allow the local AS number to exist in the AS_PATH attribute of routes from a peer/peer group, and to configure the number of times the local AS number can appear.
Use the undo peer allow-as-loop command to remove the configuration.
By default, the local AS number is not allowed.
Related commands: display bgp multicast routing-table peer.
Examples
# In IPv4 MBGP address family view, configure the number of times the local AS number can appear in routes from the peer 1.1.1.1 as 2.
[Sysname]bgp 100
[Sysname-bgp] peer 1.1.1.1 as-number 200
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer 1.1.1.1 enable
[Sysname-bgp-af-mul] peer 1.1.1.1 allow-as-loop 2
peer as-path-acl (MBGP family view)
Syntax
peer { group-name | ip-address } as-path-acl as-path-acl-number { export | import }
undo peer { group-name | ip-address } as-path-acl as-path-acl-number { export | import }
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
as-path-acl-number: AS path ACL number, in the range 1 to 256.
export: Filters outgoing routes.
import: Filters incoming routes.
Description
Use the peer as-path-acl command to configure the filtering of routes incoming from or outgoing to a peer/peer group based on a specified AS path ACL.
Use the undo peer as-path-acl command to remove the filtering.
By default, no AS path ACL based filtering is configured.
Related commands: ip as-path, if-match as-path and apply as-path (refer to IP Route policy Commands in the IP Routing Volume).
Examples
# In IPv4 MBGP address family view, reference the AS path ACL 1 to filter routes outgoing to the peer group test.
[Sysname]bgp 100
[Sysname-bgp]group test external
[Sysname-bgp]peer test as-number 200
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test as-path-acl 1 export
peer default-route-advertise (MBGP family view)
Syntax
peer { group-name | ip-address } default-route-advertise [ route-policy route-policy-name ]
undo peer { group-name | ip-address } default-route-advertise
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
route-policy-name: Route policy name, a string of 1 to 19 characters.
Description
Use the peer default-route-advertise command to advertise a default route to a peer/peer group.
Use the undo peer default-route-advertise command to disable default route advertisement to a peer/peer group.
By default, no default route is advertised to a peer/peer group.
With this command used, the router unconditionally sends a default route with the next hop being itself to the peer/peer group regardless of whether the default route is available in the routing table.
Examples
# In IPv4 MBGP address family view, advertise a default route to the existing peer group test.
[Sysname]bgp 100
[Sysname-bgp]group test external
[Sysname-bgp]peer test as-number 200
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test default-route-advertise
peer enable (MBGP family view)
Syntax
peer { group-name | ip-address } enable
undo peer { group-name | ip-address } enable
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
Description
Use the peer enable command to enable the specified peer/peer group that has been created in BGP view.
Use the undo peer enable command to disable the specified peer/peer group that has been created in BGP view.
If a peer is disabled, the router will not exchange routing information with the peer.
Examples
# Enable the peer 18.10.0.9.
[Sysname]bgp 100
[Sysname-bgp]peer 18.10.0.9 as-number 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer 18.10.0.9 enable
peer filter-policy (MBGP family view)
Syntax
peer { group-name | ip-address } filter-policy acl-number { export | import }
undo peer { group-name | ip-address } filter-policy [ acl-number ] { export | import }
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
acl-number: ACL number, in the range 2000 to 3999.
export: Uses the ACL to filter routes outgoing to the peer/peer group.
import: Uses the ACL to filter routes incoming from the peer/peer group.
Description
Use the peer filter-policy command to configure an ACL-based filter policy for a peer or peer group.
Use the undo peer filter-policy command to remove the filtering.
By default, no ACL-based filter policy is configured for a peer or peer group.
Related commands: peer as-path-acl.
Examples
# In IPv4 MBGP address family view, reference ACL 2000 to filter routes sent to the peer group test.
[Sysname]bgp 100
[Sysname-bgp]group test external
[Sysname-bgp]peer test as-number 200
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test filter-policy 2000 export
peer group (MBGP family view)
Syntax
peer ip-address group group-name
undo peer ip-address group group-name
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
Description
Use the peer group command to add an IPv4 MBGP peer to an IPv4 MBGP peer group.
Use the undo peer group command to delete a specified peer from a peer group.
By default, no peer is added into a peer group.
Examples
# In IPv4 MBGP address family view, add the peer 10.1.1.1 to the multicast EBGP peer group test.
[Sysname] bgp 100
[Sysname-bgp]group test external
[Sysname-bgp]peer test as-number 200
[Sysname-bgp] peer 10.1.1.1 group test
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer 10.1.1.1 group test
peer ip-prefix (MBGP family view)
Syntax
peer { group-name | ip-address } ip-prefix ip-prefix-name { export | import }
undo peer { group-name | ip-address } ip-prefix { export | import }
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
ip-prefix-name: IP prefix list name, a string of 1 to 19 characters.
export: Applies the filter to routes outgoing to the specified peer/peer group.
import: Applies the filter to routes from the specified peer/peer group.
Description
Use the peer ip-prefix command to reference an IP prefix list to filter routes received from or advertised to a peer or peer group.
Use the undo peer ip-prefix command to remove the configuration.
By default, no IP prefix list based filtering is configured.
Examples
# In IPv4 MBGP address family view, use the IP prefix list 1 to filter routes outgoing to the peer group test.
[Sysname]bgp 100
[Sysname-bgp]group test external
[Sysname-bgp]peer test as-number 200
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test ip-prefix list1 export
peer keep-all-routes (MBGP family view)
Syntax
peer { group-name | ip-address } keep-all-routes
undo peer { group-name | ip-address } keep-all-routes
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
Description
Use the peer keep-all-routes command to save original routing information from a peer or peer group, including routes that fail to pass the inbound policy (if configured).
Use the undo peer keep-all-routes command to disable this feature.
By default, the feature is not enabled.
Examples
# In IPv4 MBGP address family view, save all the routing information from peer 131.108.1.1.
[Sysname]bgp 100
[Sysname-bgp] peer 131.108.1.1 as-number 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer 131.108.1.1 enable
[Sysname-bgp-af-mul] peer 131.108.1.1 keep-all-routes
peer next-hop-local (MBGP family view)
Syntax
peer { group-name | ip-address } next-hop-local
undo peer { group-name | ip-address } next-hop-local
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
Description
Use the peer next-hop-local command to specify the router as the next hop for routes sent to a peer/peer group.
Use the undo peer next-hop-local command to remove the configuration.
By default, routes advertised to an EBGP peer/peer group take the local router as the next hop, while routes outgoing to an IBGP peer/peer group do not take the local router as the next hop.
Examples
# In IPv4 MBGP address family view, specify the router as the next hop for routes sent to the peer group test.
[Sysname]bgp 100
[Sysname-bgp]group test internal
[Sysname-bgp]peer test as-number 200
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test next-hop-local
peer preferred-value (MBGP family view)
Syntax
peer { group-name | ip-address } preferred-value value
undo peer { group-name | ip-address } preferred-value
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
value: Preferred value, in the range 0 to 65535.
Description
Use the peer preferred-value command to specify a preferred value for routes received from a peer or peer group.
Use the undo peer preferred-value command to restore the default value.
The default preferred value is 0.
Routes learned from a peer have an initial preferred value. Among multiple routes that have the same destination/mask and are learned from different peers, the one with the greatest preferred value is selected as the route to the destination.
Note that:
If you both reference a route policy and use the peer { group-name | ip-address } preferred-value value command to set a preferred value for routes from a peer/peer group, the route policy sets a specified non-zero preferred value for routes matching it. Other routes not matching the route policy uses the value set with the peer preferred-value command. If the preferred value specified in the route policy is zero, the routes matching it will also use the value set with the command.
For information about using a route policy to set a preferred value, refer to the command peer { group-name | ip-address } route-policy route-policy-name { export | import } in this document, and the command apply preferred-value preferred-value in Route policy Commands of the IP Routing Volume.
Examples
# In IPv4 MBGP address family view, configure the preferred value as 50 for routes from peer 131.108.1.1.
[Sysname]bgp 100
[Sysname-bgp] peer 131.108.1.1 as-number 100
[Sysname-bgp]ipv4-family multicast
[Sysname-bgp-af-mul] peer 131.108.1.1 enable
[Sysname-bgp-af-mul] peer 131.108.1.1 preferred-value 50
peer public-as-only (MBGP family view)
Syntax
peer { group-name | ip-address } public-as-only
undo peer { group-name | ip-address } public-as-only
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
Description
Use the peer public-as-only command to not keep private AS numbers in BGP updates sent to a peer/peer group.
Use the undo peer public-as-only command to keep private AS numbers in BGP updates sent to a peer/peer group.
By default, outgoing BGP updates can carry private AS numbers.
The command does not take effect for BGP updates with both public and private AS numbers. The range of private AS numbers is from 64512 to 65535.
Examples
# In IPv4 MBGP address family view, disable updates sent to the peer group test from carrying private AS numbers.
[Sysname] bgp 100
[Sysname-bgp] group test external
[Sysname-bgp] peer test as-number 200
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test public-as-only
peer reflect-client (MBGP family view)
Syntax
peer { group-name | peer-address } reflect-client
undo peer { group-name | peer-address } reflect-client
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
peer-address: IP address of an IPv4 MBGP peer.
Description
Use the peer reflect-client command to configure the router as a route reflector and specify a peer/peer group as a client.
Use the undo peer reflect-client command to remove the configuration.
By default, neither the route reflector nor the client is configured.
Related commands: reflect between-clients and reflect cluster-id.
Examples
# In IPv4 MBGP address family view, configure the local device as a route reflector and specify the IBGP peer group test as a client.
[Sysname] bgp 100
[Sysname-bgp] group test internal
[Sysname-bgp] peer test as-number 100
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test reflect-client
peer route-limit (MBGP family view)
Syntax
peer { group-name | ip-address } route-limit limit [ percentage ]
undo peer { group-name | ip-address } route-limit
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
limit: Upper limit of IP prefixes that can be received from the peer or peer group. Its range and default value vary with devices.
percentage: If the number of received routes divided by the upper limit reaches the specified percentage, the system will generate alarm information. The percentage is in the range 1 to 100. The default is 75.
Description
Use the peer route-limit command to set the maximum number of routes that can be received from a peer/peer group.
Use the undo peer route-limit command to restore the default.
The number is unlimited by default.
Examples
# In IPv4 MBGP address family view, set the number of routes that can be received from peer 131.108.1.1 to 10000.
[Sysname] bgp 100
[Sysname-bgp] peer 131.108.1.1 as-number 100
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul] peer 131.108.1.1 enable
[Sysname-bgp-af-mul] peer 131.108.1.1 route-limit 10000
peer route-policy (MBGP family view)
Syntax
peer { group-name | ip-address } route-policy route-policy-name { export | import }
undo peer { group-name | ip-address } route-policy route-policy-name { export | import }
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
group-name: Peer group name, a string of 1 to 47 characters.
ip-address: IP address of an IPv4 MBGP peer.
route-policy-name: Route policy name, a string of 1 to 19 characters.
export: Applies the route policy to routes advertised to the peer/peer group.
import: Applies the route policy to routes received from the peer/peer group.
Description
Use the peer route-policy command to apply a route policy to routes incoming from or outgoing to a peer or peer group.
Use the undo peer route-policy command to remove the configuration.
By default, no route policy is applied to routes from/to the peer/peer group.
The peer route-policy command does not apply the if-match interface clause in the referenced route policy. Refer to Route policy Commands in the IP Routing Volume for related commands.
Examples
# In IPv4 MBGP address family view, apply the route policy test-policy to routes outgoing to the peer group test.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] group test external
[Sysname-bgp] peer test as-number 200
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul] peer test enable
[Sysname-bgp-af-mul] peer test route-policy test-policy export
preference (MBGP family view)
Syntax
preference { external-preference internal-preference local-preference | route-policy route-policy-name }
undo preference
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
external-preference: Preference of EBGP routes, in the range 1 to 255.
internal-preference: Preference of IBGP routes, in the range 1 to 255.
local-preference: Preference of local routes, in the range 1 to 255.
route-policy-name: Route policy name, a string of 1 to 19 characters. Using a route policy can set preferences for the routes matching it. As for the unmatched routes, the default preferences are adopted.
Description
Use the preference command to configure preferences for external, internal, and local routes.
Use the undo preference command to restore the default.
The default preference values of external, internal and local BGP routes are 255, 255, and 130, respectively
Examples
# In IPv4 MBGP address family view, configure preferences for EBGP, IBGP, and local IPv4 MBGP routes as 20, 20, and 200.
<Sysname> system-view
[Sysname]bgp 100
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul] preference 20 20 200
reflect between-clients (MBGP family view)
Syntax
reflect between-clients
undo reflect between-clients
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
None
Description
Use the reflect between-clients command to enable route reflection between clients.
Use the undo reflect between-clients command to disable this function.
By default, route reflection between clients is enabled.
After a route reflector is configured, it reflects the routes of a client to other clients. If the clients of a route reflector are fully meshed, you need to disable route reflection between clients to reduce routing costs.
Related commands: reflector cluster-id and peer reflect-client.
Examples
# Disable route reflection between clients.
<Sysname> system-view
[Sysname]bgp 100
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul] undo reflect between-clients
reflector cluster-id (MBGP family view)
Syntax
reflector cluster-id { cluster-id | ip-address }
undo reflector cluster-id
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
cluster-id: Cluster ID of the route reflector, in the range 1 to 4294967295.
ip-address: Cluster ID of the route reflector, in the format of an IP address.
Description
Use the reflector cluster-id command to configure the cluster ID of the route reflector.
Use the undo reflector cluster-id command to remove the configured cluster ID.
By default, each route reflector uses its router ID as the cluster ID.
A route is reflected by a route reflector from a client to another client. The router ID of the route reflector is the ID of the cluster. You can configure multiple route reflectors to improve network stability. If a cluster has multiple route reflectors, you need to use the reflector cluster-id command to specify the same cluster ID for these route reflectors to avoid routing loops.
Related commands: reflect between-clients, peer reflect-client.
Examples
# Specify 80 as the cluster ID for the route reflector, which is one of multiple route reflectors in the cluster.
<Sysname> system-view
[Sysname]bgp 100
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul] reflector cluster-id 80
refresh bgp ipv4 multicast
Syntax
refresh bgp ipv4 multicast { all | ip-address | group group-name | external | internal } { export | import }
View
User view
Default Level
2: Monitor level
Parameters
all: Soft-resets all BGP connections.
ip-address: IP address of an IPv4 MBGP peer.
group-name: Peer group name, a string of 1 to 47 characters.
external: Soft-resets EBGP connections.
internal: Soft-resets IBGP connections.
export: Outbound soft reset.
import: Inbound soft reset.
Description
Use the refresh bgp ipv4 multicast command to perform soft reset on specified IPv4 MBGP connections. This method can also refresh the MBGP routing table and apply a new route policy seamlessly.
To perform BGP soft reset, all routers in the network must support route-refresh. If there is a router not supporting the route-refresh function, you need to configure the peer keep-all-routes command to save all the routing information of the peer before BGP soft reset.
Examples
# Soft-reset all the IPv4 MBGP connections.
<Sysname> refresh bgp ipv4 multicast all import
reset bgp ipv4 multicast
Syntax
reset bgp ipv4 multicast { all | as-number | ip-address | group group-name | external | internal }
View
System view
Default Level
2: Monitor level
Parameters
all: Resets all MBGP connections.
as-number: Resets MBGP connections to peers in the AS.
ip-address: Resets the connection with an IPv4 MBGP peer.
group group-name: Resets connections with the specified BGP peer group.
external: Resets all the multicast EBGP connections.
internal: Resets all the multicast IBGP connections.
Description
Use the reset bgp ipv4 multicast command to reset specified MBGP connections.
Examples
# Reset all the IPv4 MBGP connections.
<Sysname> reset bgp ipv4 multicast all
reset bgp ipv4 multicast dampening
Syntax
reset bgp ipv4 multicast dampening [ ip-address [ mask | mask-length ] ]
View
User view
Default Level
2: Monitor level
Parameters
ip-address: Destination IP address.
mask: Mask, in dotted decimal notation. The default is 255.255.255.255.
mask-length: Mask length, in the range 0 to 32. The default is 32.
Description
Use the reset bgp ipv4 multicast dampening command to clear route dampening information and release suppressed routes.
Related commands: dampening, display bgp multicast routing-table dampened.
Examples
# Clear damping information of route 20.1.0.0/16 and release the suppressed route.
<Sysname> reset bgp ipv4 multicast dampening 20.1.0.0 255.255.0.0
reset bgp ipv4 multicast flap-info
Syntax
reset bgp ipv4 multicast flap-info [ regexp as-path-regexp | as-path-acl as-path-acl-number | ip-address [ mask | mask-length ] ]
View
User view
Default Level
2: Monitor level
Parameters
as-path-regexp: Clears the flap statistics of routes matching the AS path regular expression, which is a string of 1 to 80 case-sensitive characters with spaces included.
as-path-acl-number: Clears the flap statistics for routes matching the AS path ACL, number of which is in the range 1 to 256.
ip-address: Clears the flap statistics of a route.
mask: Mask, in dotted decimal notation. The default is 255.255.255.255.
mask-length: Mask length, in the range 0 to 32. The default is 32.
Description
Use the reset bgp ipv4 multicast flap-info command to clear IPv4 MBGP routing flap statistics.
The flap statistics of all the routes will be cleared if no parameter is specified.
Examples
# Clear the flap statistics of all IPv4 MBGP routes matching AS path ACL 10.
<Sysname> reset bgp ipv4 multicast flap-info as-path-acl 10
summary automatic (MBGP family view)
Syntax
summary automatic
undo summary automatic
View
IPv4 MBGP address family view
Default Level
2: System level
Parameters
None
Description
Use the summary automatic command to enable automatic summarization for redistributed subnets.
Use the undo summary automatic command to disable automatic summarization.
By default, automatic summarization is disabled.
Note that:
l The default routes and the routes imported with the network command cannot be automatically summarized.
l The summary automatic command helps IPv4 MBGP limit the number of routes redistributed from IGP.
Examples
# In IPv4 MBGP address family view, enable automatic route summarization.
<Sysname> system-view
[Sysname]bgp 100
[Sysname-bgp] ipv4-family multicast
[Sysname-bgp-af-mul] summary automatic
