Confederation Nonstandard - HP 6125G Command Reference Manual

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 RFC 3065
in the confederation.
Use undo confederation nonstandard to restore the default.
132