R3721-F3210-F3171-HP High-End Firewalls Network Management Command Reference-6PW101

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Parameters
as-number: Number of the AS that contains multiple sub-ASs, in the range of 1 to 4294967295.
Description
Use confederation id to configure a confederation ID.
Use undo confederation id to remove a specified confederation.
By default, no confederation ID is configured.
Configuring a confederation can reduce iBGP connections in a large AS. You can split the AS into
several sub-ASs, and each sub-AS remains fully meshed. These sub-ASs form a confederation. Key IGP
attributes of a route, such as the next hop, MED, local preference, are not discarded when crossing each
sub-AS. The sub-ASs still look like a whole from the perspective of other ASs. This can ensure the integrity
of the former AS, and solve the problem of too many iBGP connections in the AS.
Related commands: confederation nonstandard and confederation peer-as.
Examples
# Confederation 9 consists of four sub-ASs numbered 38, 39, 40 and 41. The peer 10.1.1.1 is a member
of the confederation and the peer 200.1.1.1 is outside of the confederation. Take sub AS 41 as an
example.
<Sysname> system-view
[Sysname] bgp 41
[Sysname-bgp] confederation id 9
[Sysname-bgp] confederation peer-as 38 39 40
[Sysname-bgp] group Confed38 external
[Sysname-bgp] peer Confed38 as-number 38
[Sysname-bgp] peer 10.1.1.1 group Confed38
[Sysname-bgp] group Remote98 external
[Sysname-bgp] peer Remote98 as-number 98
[Sysname-bgp] peer 200.1.1.1 group Remote98
confederation nonstandard
Syntax
confederation nonstandard
undo confederation nonstandard
View
BGP view
Default level
2: System level
Parameters
None
Description
Use confederation nonstandard to make the router compatible with routers not compliant with RFC3065
in the confederation.
Use undo confederation nonstandard to restore the default.