After the zero field check is enabled, the router discards RIPv1 messages in which zero fields are non-zero. If all messages are trusty, you can disable this feature to reduce the processing time of the CPU.

Examples

# Disable the zero field check on RIPv1 messages for RIP process 100.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] undo checkzero

default cost (RIP view)

Syntax

default cost value

undo default cost

View

RIP view

Default Level

2: System level

Parameters

value: Default metric of redistributed routes, in the range of 0 to 16.

Description

Use the default cost command to configure the default metric for redistributed routes.

Use the undo default cost command to restore the default.

By default, the default metric of redistributed routes is 0.

When you use the import-route command to redistribute routes from other protocols without specifying a metric, the metric specified by the default cost command applies.

Related command: import-route.

Examples

# Set the default metric for redistributed routes to 3.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] default cost 3

default-route

Syntax

default-route { only | originate } [ cost cost ]

undo default-route

View

RIP view

Default Level

2: System level

Parameters

only: Advertises only a default route.

originate: Advertises both a default route and other routes.

cost: Cost of the default route, in the range of 1 to 15.

Description

Use the default-route originate cost command to configure all the interfaces under the RIP process to advertise a default route with the specified metric to RIP neighbors.

Use the undo default-route originate command to disable all the interfaces under the RIP process from sending a default route.

By default, no default route is sent to RIP neighbors.

The RIP router with this feature configured will not receive any default routes from RIP neighbors.

Related commands: rip default-route.

Examples

# Configure all the interfaces under RIP process 1 to send only a default route with a metric of 2 to RIP neighbors.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] default-route only cost 2

display rip

Syntax

display rip [ process-id | vpn-instance vpn-instance-name ]

View

Any view

Default Level

1: Monitor level

Parameters

process-id: RIP process ID, in the range of 1 to 65535.

vpn-instance vpn-instance-name: Specifies a VPN instance name, a string of 1 to 31 characters.

Description

Use the display rip command to display the current status and configuration information of the specified RIP process.

l If process-id is not specified, information about all configured RIP processes is displayed.

l If vpn-instance-name is specified, the RIP configuration of the specified VPN instance is displayed.

Examples

# Display the current status and configuration information of all configured RIP processes.

<Sysname> display rip

Public VPN-instance name :

RIP process : 1

RIP version : 1

Preference : 100

Checkzero : Enabled

Default-cost : 0

Summary : Enabled

Hostroutes : Enabled

Maximum number of balanced paths : 8

Update time : 30 sec(s) Timeout time : 180 sec(s)

Suppress time : 120 sec(s) Garbage-collect time : 120 sec(s)

update output delay : 20(ms) output count : 3

TRIP retransmit time : 5 sec(s)

TRIP response packets retransmit count : 36

Silent interfaces : None

Default routes : Only Default route cost : 3

Verify-source : Enabled

Networks :

192.168.1.0

Configured peers : None

Triggered updates sent : 0

Number of routes changes : 0

Number of replies to queries : 0

Table 1-1 display rip command output description

Field	Description
Public VPN-instance name (or Private VPN-instance name)	The RIP process runs under a public VPN instance/The RIP process runs under a private VPN instance
RIP process	RIP process ID
RIP version	RIP version 1 or 2
Preference	RIP route priority
Checkzero	Indicates whether the zero field check is enabled for RIPv1 messages.
Default-cost	Default cost of the redistributed routes
Summary	Indicates whether route summarization is enabled
Hostroutes	Indicates whether to receive host routes
Maximum number of balanced paths	Maximum number of load balanced routes
Update time	RIP update interval
Timeout time	RIP timeout time
Suppress time	RIP suppress interval
update output delay	RIP packet sending interval
output count	Maximum number of RIP packets sent at each interval
Garbage-collect time	RIP garbage collection interval
TRIP retransmit time	TRIP retransmit interval for sending update requests and responses.
TRIP response packets retransmit count	Maximum retransmit times for update requests and responses
Silent interfaces	Number of silent interfaces, which do not periodically send updates
Default routes	Indicates whether a default route is sent to RIP neighbors l only means only a default route is advertised. l originate means a default route is advertised along with other routes. l disable means no default route is advertised.
Default route cost	Cost of the default route
Verify-source	Indicates whether the source IP address is checked on the received RIP routing updates
Networks	Networks enabled with RIP
Configured peers	Configured neighbors
Triggered updates sent	Number of sent triggered updates
Number of routes changes	Number of changed routes in the database
Number of replies to queries	Number of RIP responses

display rip database

Syntax

display rip process-id database

View

Any view

Default Level

1: Monitor level

Parameters

process-id: RIP process ID, in the range of 1 to 65535.

Description

Use the display rip database command to display the active routes in the RIP database, which are sent in normal RIP routing updates.

Examples

# Display the active routes in the database of RIP process 100.

<Sysname> display rip 100 database

10.0.0.0/8, cost 6, ClassfulSumm

10.0.0.0/8, cost 6, nexthop 192.168.0.37

192.168.0.0/24, cost 0, ClassfulSumm

192.168.0.0/24, cost 0, nexthop 192.168.0.73, Rip-interface

Table 1-2 display rip database command output description

Field	Description
X.X.X.X/X	Destination address and subnet mask
cost	Cost of the route
classful-summ	Indicates the route is a RIP summary route.
Nexthop	Address of the next hop
Rip-interface	Routes learnt from a RIP–enabled interface
imported	Routes redistributed from other routing protocols

display rip interface

Syntax

display rip process-id interface [ interface-type interface-number ]

View

Any view

Default Level

1: Monitor level

Parameters

process-id: RIP process ID, in the range of 1 to 65535.

interface-type interface-number: Specifies an interface.

Description

Use the display rip interface command to display the RIP interface information of the RIP process.

If no interface is specified, information about all RIP interfaces of the RIP process is displayed.

Examples

# Display all the interface information of RIP process 1.

<Sysname> display rip 1 interface

Interface-name: Vlan-interface1

Address/Mask:1.1.1.1/24 Version:RIPv1

MetricIn:5 MetricIn route policy:123

MetricOut:5 MetricOut route policy:234

Split-horizon/Poison-reverse:on/off Input/Output:on/on

Default route:off

Current packets number/Maximum packets number:234/2000

Table 1-3 display rip interface command output description

Field	Description
Interface-name	The name of an interface running RIP
Address/Mask	IP address and mask of the interface
Version	RIP version running on the interface
MetricIn	Additional routing metric added to the incoming routes
MetricIn route policy	Name of the routing policy used to add the additional routing metric for the incoming routes. If no routing policy is referenced, the field displays Not designated.
MetricOut	Additional routing metric added to the outgoing routes
MetricOut route policy	Name of the routing policy used to add the additional routing metric for the outgoing routes. If no routing policy is referenced, the field displays Not designated.
Split-horizon	Indicates whether split-horizon is enabled (ON: enabled, OFF: disabled)
Poison-reverse	Indicates whether poison-reverse is enabled (ON: enabled, OFF: disabled)
Input/Output	Indicates if the interface is allowed to receive (Input) or send (Output) RIP messages (on means it is allowed, off means it is not allowed)
Default route	Default route
Current packets number/Maximum packets number	Packets to be sent/Maximum packets that can be sent on the interface

display rip route

Syntax

display rip process-id route [ statistics | ip-address { mask | mask-length } | peer ip-address ]

View

Any view

Default Level

1: Monitor level

Parameters

process-id: RIP process ID, in the range of 1 to 65535.

statistics: Displays the route statistics, including total number of routes and number of routes of each neighbor.

ip-address { mask | mask-length }: Displays route information about a specified IP address.

peer ip-address: Displays all routing information learned from a specified neighbor.

Description

Use the display rip route command to display the routing information of a specified RIP process.

Examples

# Display all routing information of RIP process 1.

<Sysname> display rip 1 route

Route Flags: R-RIP, T-TRIP

P-Permanent, A-Aging, S-Suppressed, G-Garbage-collect

--------------------------------------------------------------------------

Peer 21.0.0.23 on Vlan-interface1

Destination/Mask NextHop Cost Tag Flags Sec

56.0.0.0/8 21.0.0.23 1 0 RA 102

34.0.0.0/8 21.0.0.23 1 0 RA 23

# Display routing information for network 56.0.0.0/8 of RIP process 1.

<Sysname> display rip 1 route 56.0.0.0 8

Route Flags: R-RIP, T-TRIP

P-Permanent, A-Aging, S-Suppressed, G-Garbage-collect

--------------------------------------------------------------------------

Peer 21.0.0.23 on Vlan-interface1

Destination/Mask NextHop Cost Tag Flags Sec

56.0.0.0/8 21.0.0.23 1 0 RA 102

# Display RIP process1 routing information learned from the specified neighbor.

<Sysname> display rip 1 route peer 21.0.0.23

Route Flags: R-RIP, T-TRIP

P-Permanent, A-Aging, S-Suppressed, G-Garbage-collect

--------------------------------------------------------------------------

Peer 21.0.0.23 on Vlan-interface1

Destination/Mask NextHop Cost Tag Flags Sec

56.0.0.0/8 21.0.0.23 1 0 RA 102

34.0.0.0/8 21.0.0.23 1 0 RA 23

Table 1-4 display rip route command output description

Field	Description
Route Flags	R — RIP route T — TRIP route P — The route never expires A — The route is aging S — The route is suppressed G — The route is in Garbage-collect state
Peer 21.0.0.23 on Vlan-interface1	Routing information learned on a RIP interface from the specified neighbor
Destination/Mask	Destination IP address and subnet mask
Nexthop	Next hop of the route
Cost	Cost of the route
Tag	Route tag
Flags	Indicates the route state
Sec	Remaining time of the timer corresponding to the route state

# Display the routing statistics of RIP process 1.

<Sysname> display rip 1 route statistics

Peer Aging Permanent Garbage

21.0.0.23 2 0 3

21.0.0.12 2 0 4

Total 4 0 7

Table 1-5 display rip route statistics command output description

Field	Description
Peer	IP address of a neighbor
Aging	Total number of aging routes learned from the specified neighbor
Permanent	Total number of permanent routes learned from the specified neighbor
Garbage	Total number of routes in the garbage-collection state learned from the specified neighbor
Total	Total number of routes learned from all RIP neighbors

filter-policy export (RIP view)

Syntax

filter-policy { acl-number | ip-prefix ip-prefix-name } export [ protocol [ process-id ] | interface-type interface-number ]

undo filter-policy export [ protocol [ process-id ] | interface-type interface-number ]

View

RIP view

Default Level

2: System level

Parameters

acl-number: Number of an ACL used to filter outbound routes, in the range of 2000 to 3999.

ip-prefix ip-prefix-name: Name of an IP prefix list used to filter outbound routes, a string of 1 to 19 characters.

protocol: Filters outbound routes redistributed from a specified routing protocol, which can be bgp, direct, isis, ospf, rip, and static.

process-id: Process ID of the specified routing protocol, in the range of 1 to 65535. You need to specify a process ID when the routing protocol is rip, ospf, or isis.

interface-type interface-number: Specifies an interface.

Description

Use the filter-policy export command to configure the filtering of RIP outgoing routes. Only routes not filtered out can be advertised.

Use the undo filter-policy export command to remove the filtering.

By default, RIP does not filter outbound routes.

Note that:

l If protocol is specified, RIP filters only the outgoing routes redistributed from the specified routing protocol. Otherwise, RIP filters all routes to be advertised.

l If interface-type interface-number is specified, RIP filters only the routes advertised by the specified interface. Otherwise, RIP filters routes advertised by all RIP interfaces.

Related commands: acl, import-route, and ip ip-prefix.

Examples

# Reference ACL 2000 to filter outbound routes.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] filter-policy 2000 export

# Reference IP prefix list abc to filter outbound routes on Vlan-interface 1.

[Sysname-rip-1] filter-policy ip-prefix abc export Vlan-interface 1

filter-policy import (RIP view)

Syntax

filter-policy { acl-number | gateway ip-prefix-name | ip-prefix ip-prefix-name [ gateway ip-prefix-name ] } import [ interface-type interface-number ]

undo filter-policy import [ interface-type interface-number ]

View

RIP view

Default Level

2: System level

Parameters

acl-number: Number of the ACL used for filtering incoming routes, in the range of 2000 to 3999.

ip-prefix ip-prefix-name: References an IP prefix list to filter incoming routes. The ip-prefix-name is a string of 1 to 19 characters.

gateway ip-prefix-name: References an IP prefix list to filter routes from the gateway. ip-prefix-name is a string of 1 to 19 characters.

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

Description

Use the filter-policy import command to filter the incoming routes.

Use the undo filter-policy import command to restore the default.

By default, RIP does not filter incoming routes.

Related commands: acl and ip ip-prefix.

Examples

# Reference ACL 2000 to filter incoming routes.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] filter-policy 2000 import

# Reference IP prefix list abc on Vlan-interface 1 to filter all received RIP routes.

[Sysname-rip-1] filter-policy ip-prefix abc import Vlan-interface 1

host-route

Syntax

host-route

undo host-route

View

RIP view

Default Level

2: System level

Parameters

None

Description

Use the host-route command to enable host route reception.

Use the undo host-route command to disable host route reception.

By default, receiving host routes is enabled.

In some cases, a router may receive many host routes from the same network segment. These routes are not helpful for routing and occupy a large amount of network resources. You can use the undo host-route command to disable receiving of host routes.

RIPv2 can be disabled from receiving host routes, but RIPv1 cannot.

Examples

# Disable RIP from receiving host routes.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] undo host-route

import-route (RIP view)

Syntax

import-route protocol [ process-id | all-processes | allow-ibgp ] [ cost cost | route-policy route-policy-name | tag tag ] *

undo import-route protocol [ process-id ]

View

RIP view

Default Level

2: System level

Parameters

protocol: Specifies a routing protocol from which to redistribute routes. At present, it can be bgp, direct, isis, ospf, rip, or static.

process-id: Process ID, in the range of 1 to 65535. The default is 1. It is available only when the protocol is isis, rip, or ospf.

all-processes: Enables route redistribution from all the processes of a protocol. This keyword takes effect only when the protocol is rip, ospf, or isis.

allow-ibgp: When the protocol argument is set to bgp, allow-ibgp is an optional keyword. The import-route bgp command only redistributes eBGP routes, while the import-route bgp allow-ibgp command additionally redistributes iBGP routes, which may cause routing loops. Be cautious when using it.

cost: Cost for redistributed routes, in the range of 0 to 16. If cost is not specified, the default cost specified by the default cost command applies.

tag: Tag marking redistributed routes, in the range of 0 to 65,535. The default is 0.

route-policy route-policy-name: Specifies a routing policy with 1 to 19 characters.

Description

Use the import-route command to enable route redistribution from another routing protocol.

Use the undo import-route command to disable route redistribution.

By default, RIP does not redistribute routes from other routing protocols.

Note that:

l Only active routes can be redistributed. You can use the display ip routing-table protocol command to display route state information.

l You can specify a routing policy using the keyword route-policy to redistribute only the specified routes.

l You can configure a cost for redistributed routes using the keyword cost.

l You can configure a tag value for redistributed routes using the keyword tag.

Related commands: default cost.

Examples

# Redistribute static routes, and set the cost to 4.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] import-route static cost 4

# Set the default cost for redistributed routes to 3.

[Sysname-rip-1] default cost 3

# Redistribute OSPF routes with the cost being the default cost.

[Sysname-rip-1] import-route ospf

maximum load-balancing (RIP view)

Syntax

maximum load-balancing number

undo maximum load-balancing

View

RIP view

Default Level

2: System level

Parameters

number: Maximum number of load balanced routes, in the range 1 to 4.

Description

Use the maximum load-balancing command to specify the maximum number of load balanced routes in load sharing mode.

Use the undo maximum load-balancing command to restore the default.

By default, the maximum number of load balanced routes is 4.

Examples

# Specify the maximum number of load balanced routes as 2.

<Sysname> system-view

[Sysname] rip

[Sysname-rip-1] maximum load-balancing 2

network

Syntax

network network-address

undo network network-address

View

RIP view

Default Level

2: System level

Parameters

network-address: IP address of a network segment, which can be the IP network address of any interface.

Description

Use the network command to enable RIP on the interface attached to the specified network.

Use the undo network command to disable RIP on the interface attached to the specified network.

Use the network 0.0.0.0 command to enable RIP on all interfaces.

RIP is disabled on an interface by default.

Note that:

l RIP runs only on the interfaces attached to the specified network. For an interface not on the specified network, RIP neither receives/sends routes on it nor forwards interface route through it. Therefore, you need to specify the network after enabling RIP to validate RIP on a specific interface.

l For a single process, you can use the network 0.0.0.0 command to enable RIP on all interfaces, while the command is not applicable in case of multi-process.

l If a physical interface is attached to multiple networks, you cannot advertise these networks in different RIP processes.

Examples

# Enable RIP on the interface attached to the network 129.102.0.0.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] network 129.102.0.0

output-delay

Syntax

output-delay time count count

undo output-delay

View

RIP view

Default Level

2: System level

Parameters

time: RIP packet sending interval, in milliseconds. It is in the range 10 to 100.

count: Maximum number of RIP packets sent at each interval. It is in the range 1 to 20.

Description

Use the output-delay command to configure the maximum RIP packets that can be sent at the specified interval for all interfaces under the RIP process.

Use the undo output-delay command to restore the default.

By default, an interface sends up to three RIP packets every 20 milliseconds.

Examples

# Configure all the interfaces under RIP process 1 to send up to 10 RIP packets every 30 milliseconds.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-1] output-delay 30 count 10

peer

Syntax

peer ip-address

undo peer ip-address

View

RIP view

Default Level

2: System level

Parameters

ip-address: IP address of a RIP neighbor, in dotted decimal format.

Description

Use the peer command to specify the IP address of a neighbor in the non-broadcast multi-access (NBMA) network, where routing updates destined for the peer are unicast, rather than multicast or broadcast.

Use the undo peer command to remove the IP address of a neighbor.

By default, no neighbor is specified.

Note that you need not use the peer ip-address command when the neighbor is directly connected; otherwise the neighbor may receive both the unicast and multicast (or broadcast) of the same routing information.

Examples

# Specify to send unicast updates to peer 202.38.165.1.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] peer 202.38.165.1

preference

Syntax

preference [ route-policy route-policy-name ] value

undo preference [ route-policy ]

View

RIP view

Default Level

2: System level

Parameters

route-policy-name: Routing policy name with 1 to 19 characters.

value: Priority for RIP route, in the range of 1 to 255. The smaller the value, the higher the priority.

Description

Use the preference command to specify the RIP route priority.

Use the undo preference route-policy command to restore the default.

By default, the priority of a RIP route is 100.

You can specify a routing policy using the keyword route-policy to set the specified priority to routes matching the routing policy.

l If a priority is set for matched routes in the routing policy, the priority applies to these routes. The priority of other routes is the one set by the preference command.

l If no priority is set for matched routes in the routing policy, the priority of all routes is the one set by the preference command.

Examples

# Set the RIP route priority to 120.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] preference 120

reset rip statistics

Syntax

reset rip process-id statistics

View

User view

Default Level

2: System level

Parameters

process-id: RIP process ID, in the range of 1 to 65535.

Description

Use the reset rip statistics command to clear the statistics of the specified RIP process.

Examples

# Clear statistics in RIP process 100.

<Sysname> reset rip 100 statistics

rip

Syntax

rip [ process-id ] [ vpn-instance vpn-instance-name ]

undo rip [ process-id ] [ vpn-instance vpn-instance-name ]

View

System view

Default Level

2: System level

Parameters

process-id: RIP process ID, in the range of 1 to 65535. The default is 1.

vpn-instance vpn-instance-name: Specifies a VPN instance name, a string of 1 to 31 case-sensitive characters.

Description

Use the rip command to create a RIP process and enter RIP view.

Use the undo rip command to disable a RIP process.

By default, no RIP process runs.

Note that:

l If no VPN instance is specified, the RIP process will run under public network instance.

l You must create a VPN instance before you apply a RIP process to it. For related configuration, refer to the ip vpn-instance command.

l You must enable the RIP process before configuring the global parameters. This limitation is not for configuration of interface parameters.

l The configured interface parameters become invalid after you disable the RIP process.

Examples

# Create a RIP process and enter RIP process view.

<Sysname> system-view

[Sysname] rip

[Sysname-rip-1]

rip authentication-mode

Syntax

rip authentication-mode { md5 { rfc2082 key-string key-id | rfc2453 key-string } | simple password }

undo rip authentication-mode

View

Interface view

Default Level

2: System level

Parameters

md5: MD5 authentication mode.

rfc2453: Uses the message format defined in RFC 2453 (IETF standard).

rfc2082: Uses the message format defined in RFC 2082.

key-id: MD5 key number, in the range of 1 to 255.

key-string: MD5 key string with 1 to 16 characters in plain text format, or 1 to 24 characters in cipher text format. When the display current-configuration command is used to display system information, a 24-character cipher string is displayed as the MD5 key string.

simple: Plain text authentication mode.

password: Plain text authentication string with 1 to 16 characters.

Description

Use the rip authentication-mode command to configure RIPv2 authentication mode and parameters.

Use the undo rip authentication-mode command to cancel authentication.

Note that the key string you configured can overwrite the old one if there is any.

Related commands: rip version.

Examples

# Configure MD5 authentication on VLAN-interface 10 with the key string being rose in the format defined in RFC 2453.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip version 2

[Sysname-Vlan-interface10] rip authentication-mode md5 rfc2453 rose

rip default-route

Syntax

rip default-route { { only | originate } [ cost cost ] | no-originate }

undo rip default-route

View

Interface view

Default Level

2: System level

Parameters

only: Advertises only a default route.

originate: Advertises a default route and other routes.

no-originate: Advertises routes other than a default route.

cost: Cost of the default route, in the range 1 to 15.

Description

Use the rip default-route command to configure the RIP interface to advertise a default route with the specified metric.

Use the undo rip default-route command to disable the RIP interface from sending a default route.

By default, a RIP interface can advertise a default route if the RIP process is configured with default route advertisement.

A RIP router configured to advertise a default route will not receive any default routes from RIP neighbors.

Related commands: default-route.

Examples

# Configure VLAN-interface 10 to advertise only a default route with a metric of 2.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip default-route only cost 2

rip input

Syntax

rip input

undo rip input

View

Interface view

Default Level

2: System level

Parameters

None

Description

Use the rip input command to enable the interface to receive RIP messages.

Use the undo rip input command to disable the interface from receiving RIP messages.

By default, an interface is enabled to receive RIP messages.

Related commands: rip output.

Examples

# Disable VLAN-interface 10 from receiving RIP messages.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] undo rip input

rip metricin

Syntax

rip metricin [ route-policy route-policy-name ] value

undo rip metricin

View

Interface view

Default Level

2: System level

Parameters

route-policy route-policy-name: Specifies the name of a routing policy used to add an additional metric for the routes matching it. The name is a string of 1 to 19 characters

value: Additional metric added to received routes, in the range of 0 to 16.

Description

Use the rip metricin command to configure the interface to add a metric to the routes it receives.

Use the undo rip metricin command to restore the default.

By default, the additional metric of a received route is 0.

When a valid RIP route is received, the system adds a metric to it and then installs it into the routing table. Therefore, the metric of the route received on the configured interface is increased. If the sum of the additional metric and the original metric is greater than 16, the metric of the route will be 16.

If a routing policy is referenced with the route-policy keyword:

l Routes matching the policy is added with the metric specified in the apply cost command configured in the policy, while routes not matching it is added with the metric specified in the rip metricout command. Note that, the rip metricout command does not support the + or – keyword (used to add or reduce a metric) specified in the apply cost command. For details about the apply cost command, refer to Routing Policy Commands in the IP Routing Volume.

l If the apply cost command is not configured in the policy, all the advertised routes is added with the metric specified in the rip metricout command.

Related commands: rip metricout.

Examples

# Configure VLAN-interface 10 to add a metric of 6 for incoming route 1.0.0.0/8 and to add a metric of 2 for other incoming routes.

<Sysname> system-view

[Sysname] ip ip-prefix 123 permit 1.0.0.0 8

[Sysname] route-policy abc permit node 0

[Sysname-route-policy] if-match ip-prefix 123

[Sysname-route-policy] apply cost 6

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip metricin route-policy abc 2

rip metricout

Syntax

rip metricout [ route-policy route-policy-name ] value

undo rip metricout

View

Interface view

Parameters

value: Additional metric of sent routes, in the range of 1 to 16.

Description

Use the rip metricout command to add a metric to sent routes.

Use the undo rip metricout command to restore the default.

By default, the additional metric for sent routes is 1.

With the command configured on an interface, the metric of RIP routes sent on the interface will be increased.

If a routing policy is referenced with the route-policy keyword:

l If the apply cost command is not configured in the policy, all the advertised routes is added with the metric specified in the rip metricout command.

Related commands: rip metricin.

Examples

# Configure VLAN-interface 10 to add a metric of 6 for the outgoing route 1.0.0.0/8 and to add a metric of 2 for other outgoing routes.

<Sysname> system-view

[Sysname] ip ip-prefix 123 permit 1.0.0.0 8

[Sysname] route-policy abc permit node 0

[Sysname-route-policy] if-match ip-prefix 123

[Sysname-route-policy] apply cost 6

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip metricout route-policy abc 2

rip mib-binding

Syntax

rip mib-binding process-id

undo rip mib-binding

View

System view

Default Level

2: System level

Parameters

process-id: RIP process ID, in the range of 1 to 65535.

Description

Use the rip mib-binding command to bind MIB operations with a specified RIP process, so that the RIP process can receive SNMP requests.

Use the undo rip mib-binding command to restore the default.

By default, MIB operations are bound to RIP process 1, that is, RIP process 1 is enabled to receive SNMP requests.

Examples

# Configure RIP 100 to accept SNMP requests.

<Sysname> system-view

[Sysname] rip mib-binding 100

# Restore the default.

[Sysname] undo rip mib-binding

rip output

Syntax

rip output

undo rip output

View

Interface view

Default Level

2: System level

Parameters

None

Description

Use the rip output command to enable the interface to send RIP messages.

Use the undo rip output command to disable the interface from sending RIP messages.

Sending RIP messages is enabled on an interface by default.

Related commands: rip input.

Examples

# Disable VLAN-interface 10 from receiving RIP messages.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] undo rip output

rip poison-reverse

Syntax

rip poison-reverse

undo rip poison-reverse

View

Interface view

Default Level

2: System level

Parameters

None

Description

Use the rip poison-reverse command to enable the poison reverse function.

Use the undo rip poison-reverse command to disable the poison reverse function.

By default, the poison reverse function is disabled.

Examples

# Enable the poison reverse function for RIP routing updates on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip poison-reverse

rip split-horizon

Syntax

rip split-horizon

undo rip split-horizon

View

Interface view

Default Level

2: System level

Parameters

None

Description

Use the rip split-horizon command to enable the split horizon function.

Use the undo rip split-horizon command to disable the split horizon function.

The split horizon function is enabled by default.

l The split horizon function is necessary for preventing routing loops. Therefore, you are not recommended to disable it.

l In special cases, make sure it is necessary to disable the split horizon function.

Only the poison reverse function takes effect if both the split horizon and poison reverse functions are enabled.

Examples

# Enable the split horizon function on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip split-horizon

rip summary-address

Syntax

rip summary-address ip-address { mask | mask-length }

undo rip summary-address ip-address { mask | mask-length }

View

Interface view

Default Level

2: System level

Parameters

ip-address: Destination IP address of summary route.

mask: Subnet mask of summary route, in dotted decimal format.

mask-length: Subnet mask length of summary route, in the range 0 to 32.

Description

Use the rip summary-address command to configure RIPv2 to advertise a summary route through the interface.

Use the undo rip summary-address command to remove the configuration.

Note that the summary address is valid only when the automatic summarization is disabled.

Related commands: summary.

Examples

# Advertise a local summary address on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip summary-address 10.0.0.0 255.255.255.0

rip version

Syntax

rip version { 1 | 2 [ broadcast | multicast ] }

undo rip version

View

Interface view

Default Level

2: System level

Parameters

1: RIP version 1.

2: RIP version 2.

broadcast: Sends RIPv2 messages in broadcast mode.

multicast: Sends RIPv2 messages in multicast mode.

Description

Use the rip version command to specify a RIP version for the interface.

Use the undo rip version command to remove the specified RIP version.

By default, no RIP version is configured for an interface, which uses the global RIP version. If the global RIP version is not configured, the interface can only send RIPv1 broadcasts and can receive RIPv1 broadcasts and unicasts, and RIPv2 broadcasts, multicasts and unicasts.

If RIPv2 is specified with no sending mode configured, RIPv2 messages will be sent in multicast mode.

When RIPv1 runs on an interface, the interface will:

l Send RIPv1 broadcast messages

l Receive RIPv1 broadcast messages

l Receive RIPv1 unicast messages

When RIPv2 runs on the interface in broadcast mode, the interface will:

l Send RIPv2 broadcast messages

l Receive RIPv1 broadcast messages

l Receive RIPv1 unicast messages

l Receive RIPv2 broadcast messages

l Receive RIPv2 multicast messages

l Receive RIPv2 unicast messages

When RIPv2 runs on the interface in multicast mode, the interface will:

l Send RIPv2 multicast messages

l Receive RIPv2 broadcast messages

l Receive RIPv2 multicast messages

l Receive RIPv2 unicast messages

Examples

# Configure VLAN-interface 10 to broadcast RIPv2 messages.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip version 2 broadcast

silent-interface (RIP view)

Syntax

silent-interface { all | interface-type interface-number }

undo silent-interface { all | interface-type interface-number }

View

RIP view

Default Level

2: System level

Parameters

all: Silents all interfaces.

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

Description

Use the silent-interface command to disable an interface or all interfaces from sending routing updates. That is, the interface only receives but does not send RIP messages.

Use the undo silent-interface command to restore the default.

By default, all interfaces are allowed to send routing updates.

Examples

# Configure all VLAN interfaces to work in the silent state, and activate VLAN-interface 10.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] silent-interface all

[Sysname-rip-100] undo silent-interface vlan-interface 10

[Sysname-rip-100] network 131.108.0.0

summary

Syntax

summary

undo summary

View

RIP view

Default Level

2: System level

Parameters

None

Description

Use the summary command to enable automatic RIPv2 summarization. Natural masks are used to advertise summary routes so as to reduce the size of routing tables.

Use the undo summary command to disable automatic RIPv2 summarization so that all subnet routes can be broadcast.

By default, automatic RIPv2 summarization is enabled.

Enabling automatic RIPv2 summarization can reduce the size of the routing table to enhance the scalability and efficiency of large networks.

Related commands: rip version.

Examples

# Enable RIPv2 automatic summarization.

<Sysname> system-view

[Sysname] rip

[Sysname-rip-1] summary

timers

Syntax

timers { garbage-collect garbage-collect-value | suppress suppress-value | timeout timeout-value | update update-value }*

undo timers { garbage-collect | suppress | timeout | update } *

View

RIP view

Default Level

2: System level

Parameters

garbage-collect-value: Garbage-collect timer time in seconds, in the range of 1 to 3600.

suppress-value: Suppress timer time in seconds, in the range of 0 to 3600.

timeout-value: Timeout timer time in seconds, in the range of 1 to 3600.

update-value: Update timer time in seconds, in the range of 1 to 3600.

Description

Use the timers command to configure RIP timers. By adjusting RIP timers, you can improve network performance.

Use the undo timers command to restore the default.

By default, the garbage-collect timer is 120 seconds, the suppress timer 120 seconds, the timeout timer 180 seconds, and the update timer 30 seconds.

RIP is controlled by the above four timers.

l The update timer defines the interval between routing updates.

l The timeout timer defines the route aging time. If no routing update related to a route is received after the aging time, the metric of the route is set to 16 in the routing table.

l The suppress timer defines how long a RIP route stays in the suppressed state. When the metric of a route is 16, the route enters the suppressed state. In the suppressed state, only routes which come from the same neighbor and whose metric is less than 16 will be received by the router to replace unreachable routes.

l The garbage-collect timer defines the interval from when the metric of a route becomes 16 to when it is deleted from the routing table. During the Garbage-Collect timer length, RIP advertises the route with the routing metric set to 16. If no routing update is announced for that route after the Garbage-Collect timer expires, the route will be deleted from the routing table.

Note that:

l Generally, you are not recommended to change the default values of these timers.

l The time lengths of these timers must be kept consistent on all routers and access servers in the network.

Examples

# Specifies the update, timeout, suppress, and garbage-collect timers as 5, 15, 15 and 30 respectively.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] timers update 5 timeout 15 suppress 15 garbage-collect 30

validate-source-address

Syntax

validate-source-address

undo validate-source-address

View

RIP view

Default Level

2: System level

Parameters

None

Description

Use the validate-source-address command to enable the source IP address validation on incoming RIP routing updates.

Use the undo validate-source-address command to disable the source IP address validation.

The source IP address validation is enabled by default.

Generally, disabling the validation is not recommended.

Examples

# Enable the source IP address validation on incoming messages.

<Sysname> system-view

[Sysname-rip] rip 100

[Sysname-rip-100] validate-source-address

version

Syntax

version { 1 | 2 }

undo version

View

RIP view

Default Level

2: System level

Parameters

1: Specifies the RIP version as RIPv1.

2: Specifies the RIP version as RIPv2. RIPv2 messages are multicast.

Description

Use the version command to specify a global RIP version.

Use the undo version command to remove the configured global RIP version.

By default, if an interface has a RIP version specified, the RIP version takes effect; if it has no RIP version specified, it can send RIPv1 broadcasts, and receive RIPv1 broadcasts, RIPv1 unicasts, RIPv2 broadcasts, RIPv2 multicasts, and RIPv2 unicasts.

Note that:

l If an interface has an RIP version specified, the RIP version takes precedence over the global RIP version.

l If no RIP version is specified for the interface and the global version is RIPv1, the interface inherits RIPv1, and it can send RIPv1 broadcasts, and receive RIPv1 broadcasts and unicasts.

l If no RIP version is specified for the interface and the global version is RIPv2, the interface operates in the RIPv2 muticast mode, and it can send RIPv2 multicasts, and receive RIPv2 broadcasts, multicasts and unicasts.

Examples

# Specify RIPv2 as the global RIP version.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] version 2

03-IP Routing Volume

default cost (RIP view)

filter-policy export (RIP view)

filter-policy import (RIP view)

import-route (RIP view)

maximum load-balancing (RIP view)

reset rip statistics

rip default-route

rip metricin

rip metricout

rip output

rip version

silent-interface (RIP view)

summary

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