HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Comma - Page 143

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. 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 View undo confederation nonstandard 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