Re: Route-Map Logic (Example from networkers 2000)

From: navaid@rogers.com
Date: Sun Sep 28 2003 - 08:55:19 GMT-3


Ken,
Are you setting community attribute and next-hop for same route.
If it is for different routes. I think it will work because route-map is applied for each route one by one.

Navaid.

>
> From: Ken.Farrington@barclayscapital.com
> Date: 2003/09/28 Sun AM 06:54:05 EDT
> To: ccielab@groupstudy.com
> CC: kenfarrington@yahoo.com
> Subject: Route-Map Logic (Example from networkers 2000)
>
> All,
>
> I am a little confused about the route-map logic that Cisco use.
> In their example from networkers 2000, they say (note the first line in the
> table)
> that if in your route-map, you have a hit on a permit and set an attribute,
> the
> route-map will exit?
>
> +--------------------------------------------------------------+
> | ROUTE-MAP | MATCH CLAUSE/ | ACCEPT ROUTE and | EXIT |
> | STANZA | PREFIX-LIST | SET ATTRIBUTE | ROUTE-MAP |
> +-----------+-----------------+--------------------+-----------+
> | Permit | Yes/Permit | Yes | Yes |
> | | | | |
> | Permit | No/Deny | No | No |
> | | | | |
> | Deny | Yes/Permit | No | Yes |
> | | | | |
> | Deny | No/Deny | No | No |
> +-----------+-----------------+--------------------+-----------+
>
>
>
> So I have a route map doing two things for BGP.
> 1. Setting the next-hop attrib
> 2. Setting the community
>
> But my route map does not exit after the first hit (permit 10) to set the
> next hop.
> It does continue to go onto 20 and set my community.
>
> Can someone please clarify this for me.
>
> ****Will it always go onto the next route-map statment if there is one? ****
>
>
>
> !
> ip prefix-list BGP-COMM-LIST seq 5 permit 1.1.1.0/24
> ip prefix-list BGP-COMM-LIST seq 10 permit 2.2.2.0/24
> !
> ip prefix-list BGP-SNH-LIST seq 5 permit 3.3.3.3/32
> ip prefix-list BGP-SNH-LIST seq 10 permit 4.4.4.4/32
> !
> !
> route-map BGP-ATTRIB permit 10
> match ip address prefix-list BGP-SNH-LIST
> set ip next-hop 142.220.10.1
> !
> route-map BGP-ATTRIB permit 20
> match ip address prefix-list BGP-COMM-LIST
> set community local-AS
> !
> route-map BGP-ATTRIB permit 30
> !
>
>
>
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