Table of Contents

Chapter 1 Multicast Routing and Forwarding Configuration Commands. 1-1

1.1 Multicast Routing and Forwarding Configuration Commands. 1-1

1.1.1 debugging mfib. 1-1

1.1.2 debugging mrm.. 1-4

1.1.3 display multicast boundary. 1-5

1.1.4 display multicast forwarding-table. 1-6

1.1.5 display multicast routing-table. 1-9

1.1.6 display multicast routing-table static. 1-11

1.1.7 display multicast rpf-info. 1-12

1.1.8 ip rpf-route-static. 1-13

1.1.9 multicast boundary. 1-15

1.1.10 multicast forwarding-table downstream-limit 1-16

1.1.11 multicast forwarding-table route-limit 1-17

1.1.12 multicast load-splitting. 1-18

1.1.13 multicast longest-match. 1-18

1.1.14 multicast routing-enable. 1-19

1.1.15 reset multicast forwarding-table. 1-20

1.1.16 reset multicast routing-table. 1-21

 

Chapter 1  Multicast Routing and Forwarding Configuration Commands

1.1  Multicast Routing and Forwarding Configuration Commands

1.1.1  debugging mfib

Syntax

debugging mfib { all | { driver | no-cache | packet | register | route | sync | upcall | wrong-iif } [ advanced-acl-number ] } [ slot slot-id ]

undo debugging mfib { all | { driver | no-cache | packet | register | route | sync | upcall | wrong-iif } [ advanced-acl-number ] } [ slot slot-id ]

View

User view

Default Level

1: Monitor level

Parameters

all: Specifies all types of MFIB debugging.

driver: Specifies MFIB interface driver debugging.

no-cache: Specifies MFIB unmatched packet debugging.

packet: Specifies MFIB packet debugging.

register: Specifies MFIB register message debugging.

route: Specifies MFIB route debugging.

sync: Specifies MFIB synchronization message debugging.

upcall: Enables/disables debugging for packets that MFIB reports to MRM.

wrong-iif: Enables/disables MFIB debugging for incoming interface errors. Currently, S9500 series routing switches do not support this option.

advanced-acl-number: Advanced ACL number.

slot slot-id: Specifies the slot where the interface card resides.

Description

Use the debugging mfib command to enable MFIB debugging.

Use the undo debugging mfib command to disable MFIB debugging.

By default, MFIB debugging is disabled.

Table 1-1 debugging mfib packet command output description

Field	Description
Receive packet	Received packets
Drop packet	Dropped packets
(sadd, gadd)	(S, G) entry
The TTL	TTL value of the packet
Forward multicast packet	Forwarded packets

 

Table 1-2 debugging mfib route command output description

Field	Description
receive Add entry message from MRM	An Add entry message is received from MRM.
receive Del entry message from MRM	A Del entry message is received from MRM.
receive Set IIF message from MRM	A Set IIF message is received from MRM.
receive Del OIF message from MRM	A Del OIF message is received from MRM.
receive Add OIF message from MRM	An Add OIF message is received from MRM.
The Following OIFs are added	The following OIFs are added.
(sadd, gadd)	(S, G) entry

 

Table 1-3 debugging mfib sync command output description

Field	Description
added to updated list	An entry is added into the updated list
deleted from updated list	An entry is deleted from the updated list.
Encoded the ADD message	The ADD message is encapsulated.
Encoded the DEL message	The DEL message is encapsulated.
Encoded the MOD message	The MOD message is encapsulated.
(sadd, gadd)	(S, G) entry

 

Table 1-4 debugging mfib no-cache command output description

Field	Description
Receive no cache report	An unmatched packet is received.
No MFIB entry matches	No matching entries
(sadd, gadd)	(S, G) entry
Cache the packet	Packets are cached.

 

Table 1-5 debugging mfib register command output description

Field	Description
Send register	A register message is sent.
(sadd, gadd)	(S, G) entry
Dropping received register packet	An error register message is dropped.

 

Table 1-6 debugging mfib upcall command output description

Field	Description
Send No cache up call	The corresponding message is sent to MRM.
(sadd, gadd)	(S, G) entry

 

Table 1-7 debugging mfib driver command output description

Field	Description
call driver	The driver interface is called.
Do not add to driver	No entry is added to driver
downloaded to driver Failed	Delivery to driver failed.
(sadd, gadd)	(S, G) entry

 

Examples

# Enable debugging for packets that MFIB reports to MRM.

<Sysname> debugging mfib upcall

*Sep 7 21:10:08:130 2006 Sysname MFIB/7/MFIB UPCALL:

Send No cache up call (3.4.5.6, 226.1.1.1) to MRM.(A14624)

// MFIB reports an unmatched packet to MRM.

1.1.2  debugging mrm

Syntax

debugging mrm { all | event | packet [ advanced-acl-number ] | route [ advanced-acl-number ] }

undo debugging mrm { all | event | packet | route }

View

User view

Default Level

2: System level

Parameters

all: Specifies all types of debugging for multicast routing management (MRM).

event: Specifies MRM event debugging.

packet: Specifies MRM packet debugging.

route: Specifies MRM route debugging.

advanced-acl-number: Advanced ACL number.

Description

Use the debugging mrm command to enable MRM debugging.

Use the undo debugging mrm command to disable MRM debugging.

By default, MRM debugging is disabled.

Table 1-8 debugging mrm packet command output description

Field	Description
Received	Received packets
MFIB information(NOCACHE) MFIB information(WRONGIF) MFIB information(ACTIVE) MFIB information(INACTIVE) MFIB information(SPT) MFIB information(CLEAR) MFIB information(REG-Timeout) Pim packet (protocol = 2)	Types of received packets
(sadd, gadd)	(S, G) entry

 

Table 1-9 debugging mrm route command output description

Field	Description
lost the route	A route is deleted.
a new route	A new route is added.
(sadd, gadd)	(S, G) entry

 

Table 1-10 debugging mrm event command output description

Field	Description
register interest/unregistered interest	Register/deregister
(sadd, gadd)	(S, G) entry
failed	Operation failed.

 

Examples

# Enable MRM route debugging.

<Sysname> debugging mrm route

*Sep 7 21:10:08:130 2006 Sysname MRM/7/ROUTE:

SG_INCLUDE: get a new route for (3.3.3.156, 225.0.0.1) (C155414)

*Sep 7 21:10:08:130 2006 Sysname MRM/7/ROUTE:

SG_INCLUDE: 100.1.1.1 is reachable, move (3.3.3.156, 225.0.0.1) include interest from null list(C155426)

// The route to 100.1.1.1 is reachable.

*Sep 7 21:10:08:130 2006 Sysname MRM/7/ROUTE:

Received a creation alert for (3.3.3.156, 225.0.0.1)(C181103)

// A multicast forwarding entry creation alert is received.

1.1.3  display multicast boundary

Syntax

display multicast boundary [ group-address [ mask | mask-length ] ] [ interface interface-type interface-number ]

View

Any view

Default Level

1: Monitor level

Parameters

group-address: Multicast group address.

mask: Mask of the multicast group address, 255.255.255.255 by default.

mask-length: Mask length of the multicast group address, 32 by default.

interface-type interface-number: Specifies an interface by its type and number.

Description

Use the display multicast boundary command to view the multicast boundary information on the specified interface or all interfaces.

Related commands: multicast boundary.

Examples

# View the multicast boundary information on all interfaces.

<Sysname> display multicast boundary

Multicast boundary information

Boundary              Interface

 224.1.1.0/24          Pos5/1/1

 239.2.2.0/24          Pos5/1/2

Table 1-11 display multicast boundary command output description

Field	Description
Boundary	Multicast group corresponding to the multicast boundary
Interface:	Boundary interface corresponding to the multicast boundary

 

1.1.4  display multicast forwarding-table

Syntax

display multicast forwarding-table [ group-address [ mask { mask | mask-length } ] | source-address [ mask { mask | mask-length } ] | incoming-interface { interface-type interface-number | register } | outgoing-interface { { include | exclude | match } { interface-type interface-number | register } } | statistics | slot slot-id ] * [ port-info ]

View

Any view

Default Level

1: Monitor level

Parameters

group-address: Multicast group address.

mask: Mask of the multicast group/source address, 255.255.255.255 by default.

mask-length: Mask length of the multicast group/source address. For a multicast group address, this argument has an effective value range of 4 to 32; for a multicast source address, this argument has an effective value range of 0 to 32. The system default is 32 in both cases.

source-address: Multicast source address.

incoming-interface: Displays forwarding entries of which the incoming interface is the specified one.

interface-type interface-number: Specifies an interface by its type and number.

register: Specifies the register interface.

outgoing-interface: Displays forwarding entries of which the outgoing interface is the specified one.

include: Displays the forwarding entries of which the outgoing interface list includes the specified interface.

exclude: Displays the forwarding entries of which the outgoing interface list excludes the specified interface.

match: Specifies the forwarding entries of which the outgoing interface list includes and includes only the specified interface.

statistics: Specifies to display the statistics information of multicast forwarding table.

slot slot-id: Specifies the slot number of an interface card. If you do not specify this option, this command will display the multicast forwarding table information on the switching and routing processing unit (SRPU) only.

port-info: Specifies to display Layer 2 port information.

Description

Use the display multicast forwarding-table command to view the multicast forwarding table information.

Related commands: multicast forwarding-table downstream-limit, multicast forwarding-table route-limit and display multicast routing-table.

Examples

# View the multicast forwarding table information.

<Sysname> display multicast forwarding-table

Multicast Forwarding Table

Total 1 entry

 

Total 1 entry matched

 

00001. (172.16.1.1, 224.2.100.36)

     MID: 164, Flags: 0x100000:0

     Uptime: 00:00:49, Timeout in: 00:03:17

     Incoming interface: Vlan-interface20

     List of 2 outgoing interfaces:

       1: Vlan-interface70

       2: Vlan-interface75

     Matched 17 packets(1761 bytes), Wrong If 0 packets

     Forwarded 17 packets(1761 bytes)

Table 1-12 display multicast forwarding-table command output description

Field	Description
00001	Sequence number the (S, G) entry
(172.16.1.1, 224.2.100.36)	An (S, G) entry of the multicast forwarding table
MID	(S, G) entry ID. Each (S, G) entry has an unique MID
Flags	Current state of the (S, G) entry. Different bits are used to indicate different states of (S, G) entries, in the format of X:Y. Major values of X are described in Table 1-13. Y is typically 0, indicating that the (S, G) entry is stable.
Uptime	Length of time for which the (S, G) entry has been up, in hours:minutes:seconds
Timeout in	Length of time in which the (S, G) entry will expire, in hours:minutes:seconds
Incoming interface	Incoming interface of the (S, G) entry
List of 2 outgoing interfaces	Outgoing interface list
Matched 17 packets(1761 bytes), Wrong If 0 packets	Number of (S, G)-matched packets (number of bytes), number of packets with incoming interface errors (The values are for reference only)
Forwarded 17 packets(1761 bytes)	Number of (S, G)-forwarded multicast packets (number of bytes) (The values are for reference only)

 

Table 1-13 Major values of the X field

Value	Meaning
0x000001	Indicates that  a register-stop message must be sent
0x000002	Indicates whether the multicast source corresponding to the (S, G) is active
0x000004	Indicates a null forwarding entry
0x000008	Indicates whether the RP is a PIM domain border router
0x000010	Indicates that a register outgoing interface is available
0x000400	Identifies a packet to be deleted
0x008000	Indicates that the (S, G) entry is in the smoothening process after active/standby switchover
0x010000	Indicates that the (S, G) has been updated during the smoothing process
0x080000	Indicates that the (S, G) entry has been repeatedly updated and needs to be deleted before a new entry is added
0x100000	Indicates that an entry is successfully added

 

1.1.5  display multicast routing-table

Syntax

display multicast routing-table [ group-address [ mask { mask | mask-length } ] | source-address [ mask { mask | mask-length } ] | incoming-interface { interface-type interface-number | register } | outgoing-interface { { include | exclude | match } { interface-type interface-number | register } } ] *

View

Any view

Default Level

1: Monitor level

Parameters

group-address: Multicast group address.

source-address: Multicast source address.

mask: Mask of the multicast group/source address, 255.255.255.255 by default.

mask-length: Mask length of the multicast group/source address. For a multicast group address, this argument has an effective value range of 4 to 32; for a multicast source address, this argument has an effective value range of 0 to 32. The system default is 32 in both cases.

incoming-interface: Displays multicast routing entries of which the incoming interface is the specified one.

interface-type interface-number: Specifies an interface by its type and number.

register: Specifies the register interface.

outgoing-interface: Displays multicast routing entries of which the outing interface is the specified one.

include: Displays routing entries of which the outgoing interface list includes the specified interface.

exclude: Displays routing entries of which the outgoing interface list excludes the specified interface.

match: Displays routing entries of which the outgoing interface list includes only the specified interface.

Description

Use the display multicast routing-table command to view the multicast routing table information.

Related commands: display multicast forwarding-table.

Examples

# View the routing information in the multicast routing table.

<Sysname> display multicast routing-table

Multicast routing table

 Total 1 entry

 

 00001. (10.0.51.20, 224.2.2.2)

       Uptime: 00:00:28

       Upstream Interface: Vlan-interface55

       List of 3 downstream interfaces

           1:  Vlan-interface66

           2:  Vlan-interface77

           3:  Vlan-interface88

Table 1-14 display multicast routing-table command output description

Field	Description
00001	Sequence number the (S, G) entry
(10.0.51.20, 224.2.2.2)	An (S, G) entry of the multicast forwarding table
Uptime	Length of time for which the (S, G) entry has been up, in hours:minutes:seconds
Upstream Interface	Upstream interface the (S, G) entry: multicast packets arrive at this interface
List of 3 downstream interfaces	Downstream interface list: these interfaces need to forward multicast packets

 

1.1.6  display multicast routing-table static

Syntax

display multicast routing-table static [ config ] [ source-address { mask-length | mask } ]

View

Any view

Default Level

1: Monitor level

Parameters

config: Displays the configuration information of static routes.

source-address: Multicast source address.

mask: Mask of the multicast source address.

mask-length: Mask length of the multicast source address.

Description

Use the display multicast routing-table static command to view the information of multicast static routes.

Examples

# View the configuration information of multicast static routes.

<Sysname> display multicast routing-table static config

Multicast Routing Table

Routes : 1

 

 Mroute 10.10.0.0/16,  interface = Vlan-interface10

 Matched routing protocol = <none>, Route-policy = <none>

 Preference = 1, Order = 1

Table 1-15 display multicast routing-table static command output description

Field	Description
Routes	Number of multicast static routes
Mroute	Multicast route source address and its mask length
Interface	Outgoing interface to the multicast source
Matched routing protocol	If a protocol is configured, the multicast source address of the route should be the destination address of an entry in unicast routing table
Route-policy	Routing policy. The multicast source address of the route should match the routing policy
Preference	Route preference
Order	Sequence number of the route

 

1.1.7  display multicast rpf-info

Syntax

display multicast rpf-info source-address [ group-address ]

View

Any view

Default Level

1: Monitor Level

Parameters

source-address: Multicast source address.

group-address: Multicast group address.

Description

Use the display multicast rpf-info command to view the RPF information of a multicast source.

Related commands: display multicast routing-table and display multicast forwarding-table.

Examples

# View the RPF information of multicast source 10.1.1.2.

<Sysname> display multicast rpf-info 10.1.1.2

RPF information about source 10.1.1.2:

     RPF interface: Vlan-interface10, RPF neighbor: 20.1.1.1

     Referenced route/mask: 10.1.1.0/24

     Referenced route type: igp

     Route selection rule: preference-preferred

     Load splitting rule: disable

Table 1-16 display multicast rpf-info command output description

Field	Description
RPF information about source 10.1.1.2	Information of the RPF path to multicast source 10.1.1.2
RPF interface	RPF interface
RPF neighbor	RPF neighbor
Referenced route/mask	Referenced route and its mask length
Referenced route type	Type of the referenced route, which can be any of the following: l      igp: unicast route (IGP) l      egp: unicast route (BGP) l      unicast route (directly connected) l      unicast: other unicast route (such as unicast static route) l      multicast static: multicast static route
Route selection rule	Rule for RPF route selection, which can be based on the preference of the routing protocol or based on the longest match on the destination address
Load splitting rule	Status of the load splitting rule (enabled/disabled)

 

1.1.8  ip rpf-route-static

Syntax

ip rpf-route-static source-address { mask | mask-length } [ protocol [ process-id ] ] [ route-policy policy-name ] { rpf-nbr-address | interface-type interface-number } [ preference preference ] [ order order-number ]

undo ip rpf-route-static source-address { mask | mask-length } [ protocol [ process-id ] ] [ route-policy policy-name ]

View

System view

Default Level

2: System Level

Parameters

source-address: Multicast source address.

mask: Mask of the multicast source address.

mask-length: Mask length of the multicast source address.

protocol: Routing protocol, which can have any of the following values:

l           bgp: Specifies the BGP protocol

l           isis: Specifies the IS-IS protocol

l           ospf: Specifies the OSPF protocol

l           rip: Specifies the RIP protocol

process-id: Process number of the unicast routing protocol. This argument must be provided if IS-IS, OSPF or RIP is the specified unicast routing protocol.

policy-name: Name of the multicast route match rule, a case sensitive string of 1 to 19 characters.

rpf-nbr-address: Specifies an RPF neighbor by an IP address.

interface-type interface-number: Specifies an RPF neighbor by an interface type and interface number. Currently, for an S9500 series routing switch, you can use this approach only if the interface type is POS.

order-number: Match order for routes on the same segment, in the range of 1 to 100.

preference: Route preference, 1 by default.

Description

Use the ip rpf-route-static command to configure a multicast static route.

Use the undo ip rpf-route-static command to delete a multicast static route from the multicast static routing table.

By default, no multicast static route is configured.

Note that:

l           The arguments source-address { mask | mask-length }, protocol and policy-name are critical elements in multicast static route configuration. The variation of any of these three arguments results in a different configuration.

l           In the configuration, you can use the display multicast routing-table static command to check whether the multicast static route information contains this configuration. If you find a match, modify the corresponding fields without changing the configuration sequence; otherwise, add a multicast static route.

l           When configuring a multicast static route, you can specify an RPF neighbor only by providing its IP address (rpf-nbr-address) rather than an interface type and interface number (interface-type interface-number) if the interface is a VLAN interface.

l           Because outgoing interface iteration may fail or the specified interface may be in the down state, the multicast static route configured with this command may fail to take effect. Therefore, we recommend that you use the display multicast routing-table static command after you configure a multicast static route to check whether the route has been successfully configured or whether the route has taken effect.

Related commands: display multicast routing-table static.

Examples

# Configure a multicast static route to the multicast source 10.1.1.1/24, specifying 192.168.1.23 as the RPF neighbor address.

<Sysname> system-view

[Sysname] ip rpf-route-static 10.1.1.1 24 192.168.1.23

1.1.9  multicast boundary

Syntax

multicast boundary group-address { mask | mask-length }

undo multicast boundary { group-address { mask | mask-length } | all }

View

VLAN interface view, POS interface view

Default Level

2: System level

Parameters

group-address: Multicast group address.

mask: Mask of the multicast group address

mask-length: Mask length of the multicast group address.

all: Specifies to remove all forwarding boundaries configured on the interface.

Description

Use the multicast boundary command to configure a multicast forwarding boundary.

Use the undo multicast boundary command to remove a multicast forwarding boundary.

By default, no multicast forwarding boundary is configured.

Note that:

l           A multicast forwarding boundary sets the boundary condition for the multicast groups in the specified range. If the destination address of a multicast packet matches the set boundary condition, the packet will not be forwarded.

l           If an interface needs to act as forwarding boundary for multiple multicast groups, just carry out this command on the interface once for each group.

l           Assume that Set A and Set B are both multicast forwarding boundary sets to be configured, and B is a subset of A. If A has been configured on an interface, it is not allowed to configure B on the interface; if B has been configured on the interface before A is configured, the previously configured B will be removed.

Related commands: display multicast boundary.

Examples

# Configure VLAN-interface 4 to be the forwarding boundary of multicast group 239.2.0.0/16.

<Sysname> system-view

[Sysname] interface vlan-interface 4

[Sysname-Vlan-interface4] multicast boundary 239.2.0.0 16

1.1.10  multicast forwarding-table downstream-limit

Syntax

multicast forwarding-table downstream-limit limit

undo multicast forwarding-table downstream-limit

View

System view

Default Level

2: System level

Parameters

limit: Maximum number of downstream nodes (namely, the maximum number of outgoing interfaces) for a single multicast forwarding table entry.

Description

Use the multicast forwarding-table downstream-limit command to configure the maximum number of downstream nodes for a single multicast forwarding table entry.

Use the undo multicast forwarding-table limit command to restore maximum number of downstream nodes for a single multicast forwarding table entry to the system default.

By default, the maximum number of downstream nodes for a single entry in the multicast forwarding table is 128.

Related commands: display multicast forwarding-table.

Examples

# Set the maximum number of downstream nodes for a single multicast forwarding table entry to 120.

<Sysname> system-view

[Sysname] multicast forwarding-table downstream-limit 120

1.1.11  multicast forwarding-table route-limit

Syntax

multicast forwarding-table route-limit limit

undo multicast forwarding-table route-limit

View

System view

Default Level

2: System level

Parameters

limit: Maximum number of entries in the multicast forwarding table.

Description

Use the multicast forwarding-table route-limit command to configure the maximum number of entries in the multicast forwarding table.

Use the undo multicast forwarding-table route-limit command to restore the maximum number of entries in the multicast forwarding table to the system default.

By default, the maximum number of entries in the multicast forwarding table is 512.

Related commands: display multicast forwarding-table.

Examples

# Set the maximum number of entries in the multicast forwarding table to 200.

<Sysname> system-view

[Sysname] multicast forwarding-table route-limit 200

1.1.12  multicast load-splitting

Syntax

multicast load-splitting { source | source-group }

undo multicast load-splitting

View

System view

Default Level

2: System level

Parameters

source: Specifies to implement per-source load splitting.

source-group: Specifies to implement per-source and per-group load splitting simultaneously.

Description

Use the multicast load-splitting command to enable load splitting of multicast traffic.

Use the undo multicast load-splitting command to disable load splitting of multicast traffic.

By default, load splitting of multicast traffic is disabled.

Examples

# Enable per-source load splitting of multicast traffic.

<Sysname> system-view

[Sysname] multicast load-splitting source

1.1.13  multicast longest-match

Syntax

multicast longest-match

undo multicast longest-match

View

System view

Default Level

2: System level

Parameters

None

Description

Use the multicast longest-match command to configure the device to select the RPF route based on the longest match principle, namely to select the route with the longest mask as the RPF route.

Use the undo multicast longest-match command to restore the default.

By default, the device selects the route with the highest priority as the RPF route.

Examples

# Configure the device to select the RPF route based on the longest match principle.

<Sysname> system-view

[Sysname] multicast longest-match

1.1.14  multicast routing-enable

Syntax

multicast routing-enable

undo multicast routing-enable

View

System view

Default Level

2: System level

Parameters

None

Description

Use the multicast routing-enable command to enable IP multicast routing.

Use the undo multicast routing-enable command to disable IP multicast routing.

IP multicast routing is disabled by default.

Note that:

l           You must enable IP multicast routing before you can carry out other Layer 3 multicast commands.

l           The device does not forward any multicast packets before IP multicast routing is enabled.

Examples

# Enable IP multicast routing.

<Sysname> system-view

[Sysname] multicast routing-enable

1.1.15  reset multicast forwarding-table

Syntax

reset multicast forwarding-table { { group-address [ mask { mask | mask-length } ] | source-address [ mask { mask | mask-length } ] | incoming-interface { interface-type interface-number | register } } * | all }

View

User view

Default Level

2: System level

Parameters

group-address: Multicast group address.

mask: Mask of the multicast group/source address, 255.255.255.255 by default.

mask-length: Mask length of the multicast group/source address. For a multicast group address, this argument has an effective value range of 4 to 32; for a multicast source address, this argument has an effective value range of 0 to 32. The system default is 32 in both cases in both cases.

source-address: Multicast source address.

incoming-interface: Clears multicast forwarding entries of which the incoming interface is the specified one.

interface-type interface-number: Specifies an interface by its type and number.

register: Specifies the register interface.

all: Specifies to clear all the forwarding entries from the multicast forwarding table.

Description

Use the reset multicast forwarding-table command to clear the multicast forwarding table information.

When a forwarding entry is deleted from the multicast forwarding table, the corresponding route entry is also deleted from the multicast routing table.

Related commands: reset multicast routing-table, display multicast routing-table, and display multicast forwarding-table.

Examples

# Clear the multicast forwarding entries related to multicast group 225.5.4.3 from the multicast forwarding table.

<Sysname> reset multicast forwarding-table 225.5.4.3

1.1.16  reset multicast routing-table

Syntax

reset multicast routing-table { { group-address [ mask { mask | mask-length } ] | source-address [ mask { mask | mask-length } ] | incoming-interface { interface-type interface-number | register } } * | all }

View

User view

Default Level

1: Monitor level

Parameters

group-address: Multicast group address.

mask: Mask of the multicast group/source address, 255.255.255.255 by default.

mask-length: Mask length of the multicast group/source address. For a multicast group address, this argument has an effective value range of 4 to 32; for a multicast source address, this argument has an effective value range of 0 to 32. The system default is 32 in both cases.

source-address: Multicast source address.

incoming-interface: Specifies the incoming interface of multicast routing entries.

interface-type interface-number: Specifies an interface by its type and number.

register: Specifies the register interface.

all: Specifies to clear all the routing entries from the multicast routing table.

Description

Use the reset multicast routing-table command to clear multicast routing entries from the multicast routing table.

When a route entry is deleted from the multicast routing table, the corresponding forwarding entry is also deleted from the multicast forwarding table.

Related commands: reset multicast forwarding-table, display multicast routing-table and display multicast forwarding-table.

Examples

# Clear the route entries related to multicast group 225.5.4.3 from the multicast routing table.

<Sysname> reset multicast routing-table 225.5.4.3