Cisco Cisco IOS Software Release 15.0(1)S
MLDP-Based MVPN
Configuration Examples for MLDP-Based MVPN
17
Figure 10
Default MDT Example
This configuration is consistent for every PE router participating in the same VPN ID. The vpn id 100:2
command replaces the MDT group address used with the mGRE transport method. To provide
redundancy, two default MDT trees are statically configured, rooted at P-Central and PE-North. The
selection as to which MP2MP tree the default MDT will use at a particular PE router is determined by
Interior Gateway Protocol (IGP) metrics. An MP2MP LSP is implicit for the default MDT.
command replaces the MDT group address used with the mGRE transport method. To provide
redundancy, two default MDT trees are statically configured, rooted at P-Central and PE-North. The
selection as to which MP2MP tree the default MDT will use at a particular PE router is determined by
Interior Gateway Protocol (IGP) metrics. An MP2MP LSP is implicit for the default MDT.
ip pim mpls source Loopback0
ip multicast-routing
ip multicast-routing vrf VRF
!
ip vrf VRF
rd 100:2
vpn id 100:2
route-target export 200:2
route-target import 200:2
mdt default mpls mldp 172.30.20.1 (P-Central)
mdt default mpls mldp 172.30.20.3 (PE-North)
279237
Join
(10.5.200.2,
238.1.200.1)
(10.5.200.2,
238.1.200.1)
PE-West
PE-East
MP2MP
LSP
PE-North
(Root 2)
Join
(10.5.200.3,
238.1.200.2)
PE-Central
(Root 1)
(Root 1)
172.30.20.1
172.30.20.3
(10.5.200.2,
238.1.200.1)
(10.5.200.3,
238.1.200.2)
172.30.20.2
172.30.20.4
LDP sessions
on all links
VRF
MDT Opaque Value
VPN-ID MDT# = 0