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view vpnv4 prefix and ip prefix

maher
Level 1
Level 1

Hi there,

Normally, we use the command such as "sh ip bgp vpnv4 all" "sh ip route vrf" and etc to determine the prefix path.May I know what command in cisco devices that actually reflect vpnv4 prefix and IP prefix? Sound like a stupid question but I just want to confirm.

Thanks in advance.

maher

1 Reply 1

syedjunaid
Level 1
Level 1

You are right about the command

show ip bgp vpnv4 ip-prefix

For more information on how the Routes are distinguished and the use of BGP extended communities (route targets)

Check the below URL (scroll down to the image 7-4 VPN-IP Address Format for a graphic explanation)

http://www.cisco.com/en/US/products/sw/ps2346/ps99/products_configuration_guide_chapter09186a00800ee111.html

an example

Router# show ip bgp vpnv4 all 10.22.22.0

BGP routing table entry for 10:1:22.22.22.0/24, version 19

Paths:(5 available, best #5)

Multipath:eiBGP

Advertised to non peer-group peers:

10.0.0.2 10.0.0.3 10.0.0.4 10.0.0.5

22

10.0.0.2 (metric 20) from 10.0.0.4 (10.0.0.4)

Origin IGP, metric 0, localpref 100, valid, internal, multipath

Extended Community:0x0:0:0 RT:100:1 0x0:0:0

Originator:10.0.0.2, Cluster list:10.0.0.4