Saturday, November 9, 2013

MPLS VPN OSPF BGP configuration practice

With my work being mostly based in MPLS, but from a mainly GUI use standpoint, I'm trying to gain a better overall understanding of MPLS configuration.

I don't have the Alcatel Gear to play with here, nor CLI config rights yet at work, so I'm working with the next best thing, practicing on what I do have, Cisco Gear.

I'm using Levent Okvur's walkthrough on YouTube:



So here is the simple MPLS setup I'm using:



Three 1841's, one as Provider Core, and two as Provider edge devices.
Four 1720's as the CE devices.

Config on one of the PE routers:

ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
mpls label protocol ldp
!
!
!
!
!
redundancy
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 10.10.10.202 255.255.255.255
!
interface Loopback1
ip address 172.16.202.1 255.255.255.255
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 10.10.10.5 255.255.255.252
duplex auto
speed auto
mpls ip
!
interface Serial0/0/0
ip address 192.168.2.1 255.255.255.252
no fair-queue
!
interface Serial0/1/0
no ip address
shutdown
!
router ospf 10
router-id 10.10.10.202
network 10.10.10.5 0.0.0.0 area 0
network 10.10.10.202 0.0.0.0 area 0
!
router bgp 1
bgp log-neighbor-changes
neighbor 10.10.10.101 remote-as 1
neighbor 10.10.10.101 update-source Loopback0
neighbor 10.10.10.101 next-hop-self
no auto-summary
!
address-family vpnv4
neighbor 10.10.10.101 activate
neighbor 10.10.10.101 send-community extended
exit-address-family

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