- Relacija između route mapa i policy lista u BGP protokolu.
Primer:
POLISA:
Code:
Router(config)# ip policy-list POLICY-LIST-NAME-1 permit
Router(config-policy-list)# match as-path 1
Router(config-policy-list)# match metric 10
Router(config-policy-list)# end
------------------------------------------------------------------
Router(config)# ip policy-list POLICY-LIST-NAME-2 permit
Router(config-policy-list)# match community 20
Router(config-policy-list)# match metric 10
Router(config-policy-list)# ip community-list 20 permit 20:1
Router(config-policy-list)# end
------------------------------------------------------------------
Router(config)# ip policy-list POLICY-LIST-NAME-3 deny
Router(config-policy-list)# match community 20
Router(config-policy-list)# match metric 10
Router(config-policy-list)# end
Router(config)# ip policy-list POLICY-LIST-NAME-1 permit
Router(config-policy-list)# match as-path 1
Router(config-policy-list)# match metric 10
Router(config-policy-list)# end
------------------------------------------------------------------
Router(config)# ip policy-list POLICY-LIST-NAME-2 permit
Router(config-policy-list)# match community 20
Router(config-policy-list)# match metric 10
Router(config-policy-list)# ip community-list 20 permit 20:1
Router(config-policy-list)# end
------------------------------------------------------------------
Router(config)# ip policy-list POLICY-LIST-NAME-3 deny
Router(config-policy-list)# match community 20
Router(config-policy-list)# match metric 10
Router(config-policy-list)# end
ROUTE MAPA:
Code:
Router(config)# route-map MAP-NAME-1 10
Router(config-route-map)# match ip-address 1
Router(config-route-map)# match policy-list POLICY-LIST-NAME-1
Router(config-route-map)# match policy-list POLICY-LIST-NAME-2
Router(config-route-map)# set community 10:1
Router(config-route-map)# set local-preference 140
Router(config-route-map)# end
------------------------------------------------------------------
Router(config)# route-map MAP-NAME-2 10
Router(config-route-map)# match policy-list POLICY-LIST-NAME-3 POLICY-LIST-NAME-4
Router(config-route-map)# set community 10:1
Router(config-route-map)# set local-preference 140
Router(config-route-map)# end
------------------------------------------------------------------
Router(config)# route-map MAP-NAME-1 10
Router(config-route-map)# match ip-address 1
Router(config-route-map)# match policy-list POLICY-LIST-NAME-1
Router(config-route-map)# match policy-list POLICY-LIST-NAME-2
Router(config-route-map)# set community 10:1
Router(config-route-map)# set local-preference 140
Router(config-route-map)# end
------------------------------------------------------------------
Router(config)# route-map MAP-NAME-2 10
Router(config-route-map)# match policy-list POLICY-LIST-NAME-3 POLICY-LIST-NAME-4
Router(config-route-map)# set community 10:1
Router(config-route-map)# set local-preference 140
Router(config-route-map)# end
------------------------------------------------------------------
Buni me to što i jedna i druga varijanta imaju match klauzulu, koja je prednost ovih policy lista u odnosu na route mape?
Primer sam našao ovde.
- Regular expressions u BGP-u, naravno, ako bi neko naveo neki primer upotrebe i kratko objašnjenje istih. Sporna mi je upotreba sledećih karaktera:
| * Zero or more instances
|----------------------------------------------------
| + One or more instance
|-----------------------------------------------------
| ? Zero or one instance
Hvala unapred.
[Ovu poruku je menjao miodragpro dana 17.09.2011. u 17:12 GMT+1]
[Ovu poruku je menjao miodragpro dana 17.09.2011. u 17:13 GMT+1]
[Ovu poruku je menjao miodragpro dana 18.09.2011. u 18:59 GMT+1]
[Ovu poruku je menjao miodragpro dana 18.09.2011. u 19:01 GMT+1]
Za prijatelje: Proka