Cisco Router IOS XR Spécifications télécharger pdf (Page 109)

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101

Implementing BGP on Cisco IOS XR Software

How to Implement BGP on Cisco IOS XR Software

RC-95

Cisco IOS XR Routing Configuration Guide

Step 3

address-family {ipv4 | ipv6} unicast

Example:

RP/0/RP0/CPU0:router(config-vrf)#

address-family ipv4 unicast

Enters address family configuration mode for the specified

address family.

Step 4

maximum prefix

maximum

[

threshold

]

Example:

RP/0/RP0/CPU0:router(config-vrf-af)# maximum

prefix 2300

Configures a limit to the number of prefixes allowed in a

VRF table.

A maximum number of routes is applicable only to dynamic

routing protocols and not to static or connected routes.

You can specify a threshold percentage of the prefix limit

using the mid-threshold argument.

Step 5

import route-policy

policy-name

Example:

RP/0/RP0/CPU0:router(config-vrf-af)# import

route-policy policy_a

Provides finer control over what gets imported into a VRF.

This import filter discards prefixes that do not match the

specified policy-name argument.

Step 6

import route-target [

as-number

ip-address

]

Example:

RP/0/RP0/CPU0:router(config-vrf-af)# import

route-target 234:222

Specifies a list of route target (RT) extended communities.

Only prefixes that are associated with the specified import

route target extended communities are imported into the

VRF.

Step 7

export route-policy

policy-name

Example:

RP/0/RP0/CPU0:router(config-vrf-af)# export

route-policy policy_b

Provides finer control over what gets exported into a VRF.

This export filter discards prefixes that do not match the

specified policy-name argument.

Command or Action Purpose

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