Configuration procedure, Configuring a large scale ipv6 bgp network, Configuration prerequisites – H3C Technologies H3C SR8800 User Manual

Page 375: Configuring ipv6 bgp peer group, Configuring an ibgp peer group

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Configuration procedure

To apply an IPsec policy to a peer/peer group

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter BGP view.

bgp as-number

N/A

3.

Enter IPv6 address
family view.

ipv6-family

N/A

4.

Apply an IPsec policy to

a peer/peer group.

peer { group-name | ip-address } ipsec-policy
policy-name

Not configured by default

Configuring a large scale IPv6 BGP network

In a large-scale IPv6 BGP network, configuration and maintenance become no convenient due to 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 ensure connectivity between IBGP peers, make them fully meshed, but it becomes unpractical when

too many IBGP peers exist. 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 BGP4, so it is not mentioned here.

Configuration prerequisites

Before you configure a large-scale IPv6 BGP network, complete the following tasks:

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

To configure an IBGP group:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter BGP view.

bgp as-number

N/A

3.

Enter IPv6 address family
view.

ipv6-family

N/A

4.

Create an IBGP peer group.

group ipv6-group-name [ internal ] N/A

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