Filter
Top Products
DES-7200 Configuration Guide Chapter 2 Configuring BGP IP VPN
2-53
Configure intra-site MPLS network
The configuration of Second Carrier intra-site MPLS network is the same as "Configuring an
MPLS network" in the previous section of "Configuring basic BGP/MPLS VPN Functions".
Note
You need to enable LDP on CSC-CE in order to establish sessions with other
intra-site devices in order to build MPLS network. If CSC-CE and CSC-PE use
BGP to exchange routes, then you must execute "advertise-labels for
bgp-routes" on CSC-CE to allow LDP to distribute labels for BGP routes.
Configure PEs to establish MP-IBGP neighbors
Configure to establish MP-IBGP sessions between intra-site PEs of respective Second Carriers
and between PEs of different sites in order to propagate VPN private routes served by the
Second Carriers. The configuration of Second Carrier PE is the same as the PE configuration in
the section of "Configuring Basic BGP/MPLS VPN Functions".
Note
To reduce the configuration cost of fully meshed MP-IBGP session, the RR
role can be configured inside the site. Intra-site PEs can establish MP-IBGP
session with RR, while inter-site MP-IBGP session will only be established
between RRs.
Configure user access for Second Carrier
The configurations in this section are related to the services provided by the Second Carrier, and
have nothing to do with the "Carrier's Carrier" model. If the Second Carrier provides IP service
for users, please refer to the section of IP routing configuration; if the Second Carrier provides
MPLS VPN service for users, please refer to the section of MPLS VPN configuration.
2.3.4 Configure MPLS VPN Over
GRE
Note
Currently, only router products of DES-7200 support MPLS VPN Over
GRE. This feature is not supported by DES-7200's switch products.