Cisco CRS

Related Topics
IP LDP Fast Reroute Loop Free Alternate, on page 19
MPLS LDP CSC for Multiple VRFs Configuration: Examples
This figure shows a L3VPN LDP CSC topology that uses either BGP or LDP between PE and CE routers to
distribute routes and MPLS labels.
L3VPN CSC VPN: LDP / BGP
CE13 ---
\
CE12 --- PE1 ---------- PE2
// \ \
// \ \
// \ \
CE11 \ CE21
\ \ /
\ \ /
\ \ /
PE11 --------- PE22
VRF red: CE11, CE21
VRF blue: CE12, CE13 (local only switching)
Multi-home CEs: CE11, CE21
LDP CSC: PE1/PE11 with CE1x
BGP CSC: PE2/PE22 with CE2x
CSC-CE11 Configuration
hostname ce11
interface Loopback0
ipv4 address 11.11.11.11 255.255.255.255
!
interface POS0/2/0/0
ipv4 address 192.168.1.11 255.255.255.0
!
interface POS0/2/0/1
ipv4 address 192.168.2.11 255.255.255.0
!
interface POS0/2/0/2
ipv4 address 192.168.3.11 255.255.255.0
!
router ospf 100
log adjacency changes
router-id 11.11.11.11
area 0
interface Loopback0
!
interface POS0/2/0/0
!
interface POS0/2/0/1
!
interface POS0/2/0/2
!
!
!
mpls ldp
log
adjacency
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
88
Implementing MPLS Label Distribution Protocol
MPLS LDP CSC for Multiple VRFs Configuration: Examples