344
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter BGP view
bgp
as-number
—
Enter IPv6 address family
view
ipv6-family
—
Apply an IPsec policy to a
peer or peer group
peer
{
group-name
|
ip-address
}
ipsec-policy
policy-name
Required
Not configured by default
NOTE:
An IPsec policy used for IPv6 BGP can be only in manual mode. For more information, see
Security
Configuration Guide.
Configuring a large-scale IPv6 BGP network
In a large-scale IPv6 BGP network, configuration and maintenance become inconvenient because of too
many peers. 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 have a common policy. Using the community attribute can make a set of
IPv6 BGP routers in multiple ASs have the same policy because community sending between IPv6 BGP
peers is not limited by AS.
To assure connectivity between iBGP peers, make them fully meshed, but it becomes impractical when
too many iBGP peers exist. Using route reflectors or confederation can solve this issue. In a large-scale
AS, both of them can be used.
Confederation configuration of IPv6 BGP is identical to that of BGP4, so it is not mentioned here.
Configuration prerequisites
•
Make peer nodes accessible to each other at the network layer
•
Enable BGP and configure a router ID.
Configuring IPv6 BGP peer group
Configuring an iBGP peer group
Follow these steps to configure an iBGP group:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter BGP view
bgp
as-number
—
Enter IPv6 address family view
ipv6-family
—
Create an iBGP peer group
group
ipv6-group-name
[
internal
]
Required
