BGP

[The_guroo_2]

Guys we have three methods to filter routes in BGP(correct me if i m wrong) first one is distibute list second is route maps and third is prefix-list.....what is the diference between them

[s.arunkumar]

U can use filter-list(eg: for as-path access-list) also along with the above three..

U will get more details over here..

http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hirp_r/

[royalblues]

All of them more or less achieves the same thing except for route-maps which gives you more felxibility and can reference a prefix-list, access-list etc and also set attributes

HTH

Narayan

[Pavel Bykov]

Every method filters using it's own technique. What is important is their sequence, which is reversed for outbound and inbound updates.

On Inbound:

1. Prefix List

2. Filter List

3. Route Map

4. Distribute List

On Outbound:

1. Distribute list

2. Route Map

3. Filter list

4. Prefix List

From the other routing process inside the router:

1. Filter List

2. Distribute List

3. Default Weight

4. Filter-list weight

5. Route maps

Hope this helps.

Please rate all helpful posts.