From: Adhu Ajit (adhu_ajit@yahoo.com)
Date: Thu Nov 09 2006 - 01:09:15 ART
Folks, I cant see to get BGP policy accounting to work and I cant seem to spot the error in my config. ANy help will be much appreciated.
Backbone router BB2 is feeding a route 80.1.1.0 into R2 with a community attribute of 254:80. The eBGP peering session is established through the ethernet0/0 connection on both the routers. BGP PA is turned ON on the R2 ethernet 0/0 interface. After all is configured, I do a ping from the 80.1.1.0 network to 97.1.1.1 loopback interface on R2 which BB2 comes to know through BGP. At the end of my ping test, I do not see the BGP PA counters increasing. Can anyone spot any errors in my config ?
R2#
R2#
R2#show run
Building configuration...
Current configuration : 2859 bytes
!
interface Ethernet0/0
ip address 178.9.9.2 255.255.255.0
bgp-policy accounting
!
router bgp 1
no synchronization
table-map match-254
bgp log-neighbor-changes
bgp inject-map my-inject-list exist-map my-exist-map
neighbor 120.100.123.3 remote-as 3
neighbor 178.9.9.22 remote-as 254
no auto-summary
!
ip community-list 1 permit 16646224
!
route-map match-254 permit 10
match community 1
set traffic-index 1
!
end
R2#
R2#show ip bgp 80.1.1.0/24
BGP routing table entry for 80.1.1.0/24, version 23
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to non peer-group peers:
120.100.123.3
254 20 40
178.9.9.22 from 178.9.9.22 (85.1.1.1)
Origin IGP, metric 0, localpref 100, valid, external, best
Community: 16646224
R2#
R2#show cef interface ethernet 0/0 policy-statistics
Ethernet0/0 is up (if_number 2)
Corresponding hwidb fast_if_number 2
Corresponding hwidb firstsw->if_number 2
BGP based Policy accounting is enabled
Index Packets Bytes
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
8 0 0
R2#
BB2#show run
Building configuration...
Current configuration : 1255 bytes
!
interface Loopback100
ip address 80.1.1.1 255.255.255.0
!
interface Loopback200
ip address 85.1.1.1 255.255.255.0
!
interface Ethernet0/0
ip address 178.9.9.22 255.255.255.0
!
router bgp 254
no synchronization
bgp log-neighbor-changes
network 80.1.1.0 mask 255.255.255.0
network 85.1.1.0 mask 255.255.255.0
neighbor 178.9.9.2 remote-as 1
neighbor 178.9.9.2 send-community
neighbor 178.9.9.2 route-map as-path-prep out
no auto-summary
!
ip bgp-community new-format
!
!
ip prefix-list 80 seq 5 permit 80.1.1.0/24
!
route-map as-path-prep permit 10
match ip address prefix-list 80
set as-path prepend 20 40
set community 254:80
!
route-map as-path-prep permit 20
!
!
alias exec sib show ip interface brief
alias exec sir show ip route
!
line con 0
line aux 0
line vty 0 4
!
end
BB2#
Thanks in advance.
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This archive was generated by hypermail 2.1.4 : Fri Dec 01 2006 - 08:05:45 ART