3com 8807 Reference Guide
750
C
HAPTER
40: BGP/MPLS VPN C
ONFIGURATION
C
OMMANDS
Use the undo reflector cluster-id command to delete the configuration.
By default, each router reflector uses his own ID as a cluster ID.
Usually, one cluster has one router reflector. And it is the router ID of the reflector
to identify this cluster. Several router reflectors make the network more stable. If
one cluster has several router reflectors, set the same cluster to all the reflectors ID
with this command.
to identify this cluster. Several router reflectors make the network more stable. If
one cluster has several router reflectors, set the same cluster to all the reflectors ID
with this command.
Related command: reflect between-clients and peer reflect-client.
Example
# The local router is one of the reflectors in the cluster and identifies this cluster
with the cluster ID.
with the cluster ID.
[3Com-bgp-af-vpn] reflect cluster-id 80
[3Com-bgp-af-vpn] peer 11.128.160.10 reflect-client
route-distinguisher
Syntax
route-distinguisher route-distinguisher
View
VPN-instance view
Parameter
route-distinguisher: Configures a VPN IPv4 prefix by adding an 8-byte value to a
VPN IPv4 prefix.
VPN IPv4 prefix.
Description
Use the route-distinguisher command to configure RD for an MPLS VPN
instance. A VPN-instance cannot run until it is configured with an RD.
instance. A VPN-instance cannot run until it is configured with an RD.
A route distinguisher (RD) creates route and forwarding list for a VPN and specifies
the default route identifier. Add an RD to the beginning of a specific IPv4 prefix to
make it a globally unique VPN IPv4 prefix.
the default route identifier. Add an RD to the beginning of a specific IPv4 prefix to
make it a globally unique VPN IPv4 prefix.
If an RD is associated with an autonomous system number (ASN), it is composed
of the ASN and an arbitrary number; if the RD is associated with an IP address, it is
a combination of the IP address and an arbitrary number.
of the ASN and an arbitrary number; if the RD is associated with an IP address, it is
a combination of the IP address and an arbitrary number.
RD has the following formats:
16-bit ASN (can be 0 here): A custom 32-bit number, for example, 101:3.
32-bit IP address (can be 0.0.0.0 here): A custom 16-bit number, for example,
192.168.122.15:1.
192.168.122.15:1.
Example
# Configure RD for an MPLS VPN instance.
[SW8800] ip vpn-instance vpn-instance_blue
[3Com-vpn-vpn-instance_blue] route-distinguisher 100:3
[SW8800] ip vpn-instance vpn-instance_red
[3Com-vpn-vpn-instance_red] route-distinguisher 173.13.0.12:200