H3C Technologies H3C SR8800 - Manual (Page 251)

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A confederation contains 32 sub ASs at most. The AS number of a sub AS is effective only in the
confederation.
To configure a BGP confederation:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable BGP, and enter BGP view. bgp as-number N/A
3. Configure a confederation ID. confederation id as-number
Not configured by
default
4. Specify peering sub ASs in the
confederation.
confederation peer-as
as-number-list
Not specified by default
Configuring confederation compatibility
If some other routers in the confederation do not comply with RFC 3065, you must enable confederation
compatibility to allow the router to work with those routers.
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Enable compatibility with routers not
compliant with RFC 3065 in the
confederation. confederation nonstandard
Optional
Not enabled by default
Configuring BGP GR
Perform the following configuration on the GR Restarter and GR Helper respectively.
NOTE:
A router can act as a GR Restarter and GR Helper at the same time.
To configure BGP GR:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable BGP, and enter its view. bgp as-number N/A
3. Enable GR Capability for BGP. graceful-restart Disabled by default
4. Configure the maximum time
allowed for the peer to
reestablish a BGP session.
graceful-restart timer restart
timer Optional
150 seconds by default
5. Configure the maximum time to
wait for the End-of-RIB marker. graceful-restart timer
wait-for-rib timer Optional
180 seconds by default