Configuring A Large Scale Ipv6 Bgp Network; Prerequisites; Configuring Ipv6 Bgp Peer Group - 3Com MSR 50 Series Configuration Manual

Configuring a Large
Scale IPv6 BGP
Network

Prerequisites

Configuring IPv6 BGP
Peer Group
In a large-scale IPv6 BGP network, configuration and maintenance become no
convenient due to too many peers. In this case, configuring peer groups makes
management easier and improves route distribution efficiency. Peer group includes
IBGP peer group, where peers belong to the same AS, and EBGP peer group,
where peers belong to different ASs. If peers in an EBGP group belong to the same
external AS, the EBGP peer group is a pure EBGP peer group, and if not, a mixed
EBGP peer group.
In a peer group, all members enjoy a common policy. Using the community
attribute can make a set of IPv6 BGP routers in multiple ASs enjoy the same policy,
because sending of community between IPv6 BGP peers is not limited by AS.
To guarantee connectivity between IBGP peers, you need to make them fully
meshed, but it becomes unpractical when there are too many IBGP peers. Using
route reflectors or confederation can solve it. In a large-scale AS, both of them can
be used.
Confederation configuration of IPv6 BGP is identical to that of BGP 4, so it is not
mentioned here. The following describes:

Configuring IPv6 BGP peer group

■
Configuring IPv6 BGP community
■
Configuring IPv6 BGP route reflector
■
Before configuring IPv6 BGP peer group, you have:
Made peer nodes accessible at network layer
■
Enabled BGP and configured router ID.
■
Create an IBGP peer group
Follow these steps to create an IBGP group:
To do...
Enter system view
Enter BGP view
Enter IPv6 address family view ipv6-family
Create an IBGP peer group
Add a peer into the group
Create a pure EBGP peer group
Follow these steps to configure a pure EBGP group:
To do...
Enter system view

Configuring a Large Scale IPv6 BGP Network

Use the command...
system-view
bgp as-number
group ipv6-group-name
[ internal ]
peer ipv6-address group
ipv6-group-name
[ as-number as-number ]
Use the command...
system-view
1027
Remarks
-
Required
Not enabled by default
-
Required
Required
Not added by default
Remarks
-