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192.168.13.1/32 *[Static/5] 01:06:47<br />

> via se-5/0/1.0<br />

192.168.14.1/32 *[BGP/170] 00:16:51, localpref 100, from 192.168.16.1<br />

AS path: I<br />

> via t1-4/0/0.0, label-switched-path RouterG-PE-to-RouterF-PE<br />

The output shows five routes in the VRF table for VPN2. The 10.0.16.0/24 and<br />

10.0.16.2/32 prefixes are the interface addresses between PE RouterG and its<br />

directly connected CE RouterA, and the prefix 192.168.13.1 is the loopback address<br />

of RouterA. The other two routes are received from the remote CE router, RouterF,<br />

at the other end of the LSP and have been learned from BGP as a result of the IBGP<br />

peering session between the two PE routers. The prefix 192.168.14.1 is the loopback<br />

address of the remote CE router in VPN2, RouterD, and 10.0.31.0/24 is the subnetwork<br />

between the remote PE and CE routers. Both these routes are reachable over<br />

the LSP:<br />

> via t1-4/0/0.0, label-switched-path RouterG-PE-to-RouterF-PE<br />

The VRF table shows that the route to the CE router 192.168.13.1 is a static route,<br />

which is what we configured in the recipe.<br />

It’s worth checking the VPN2.inet.0 routing table on the other PE router, RouterF, to<br />

make sure that it contains similar routing information:<br />

aviva@RouterF> show route table VPN2.inet.0<br />

VPN2.inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)<br />

+ = Active Route, - = Last Active, * = Both<br />

10.0.16.0/24 *[BGP/170] 03:32:01, localpref 100, from 192.168.19.1<br />

AS path: I<br />

> to 10.0.8.1 via fe-0/0/1.0, label-switched-path RouterF-PE<br />

-to-RouterG-PE<br />

10.0.31.0/24 *[Direct/0] 02:44:50<br />

> via t1-0/0/3.0<br />

10.0.31.2/32 *[Local/0] 21:37:58<br />

Local via t1-0/0/3.0<br />

192.168.13.1/32 *[BGP/170] 03:32:01, localpref 100, from 192.168.19.1<br />

AS path: I<br />

> to 10.0.8.1 via fe-0/0/1.0, label-switched-path RouterF-PE<br />

-to-RouterG-PE<br />

192.168.14.1/32 *[Static/5] 02:44:50<br />

> via t1-0/0/3.0<br />

The two routes 10.0.16.0/24 and 192.168.13.1/32 use the LSP to reach the remote<br />

CE router. This is indicated in the third line of each entry, which shows to...via...<br />

label-switched-path RouterF-PR-to-RouterG-PE. The remaining three routes are for<br />

the local CE router (loopback address 192.168.14.1 and subnetwork 10.0.31.0/24).<br />

The second VPN-specific routing table is bgp.l3vpn.0, which stores the VPN-IPv4<br />

routes received from other PE routers. This table on PE RouterG contains the following<br />

routes:<br />

aviva@RouterG> show route table bgp.l3vpn.0<br />

bgp.l3vpn.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)<br />

+ = Active Route, - = Last Active, * = Both<br />

566 | Chapter 15: VPNs<br />

This is the Title of the Book, eMatter Edition<br />

Copyright © 2008 O’Reilly & Associates, Inc. All rights reserved.

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