From: wing_lam@jossynergy.com
Date: Thu Jul 24 2003 - 10:47:38 GMT-3
Hi Jason,
I can see that both route you mentioned are in distance of 20; that seems
they are learnt from EBGP peers.
Syncronization only account for iBGP routes.
Thx,
BBD (Big Black Dog)
"Jason Cash"
<cash2001@swbell. To: <ccielab@groupstudy.com>
net> cc:
Sent by: Subject: BGP sync - routes getting to Route Table
nobody@groupstudy
.com
07/24/2003 09:38
PM
Please respond to
"Jason Cash"
R7 and R8 have sync. Enabled and I have all other routers with sync.
disabled as I generally do unless explicitly stated. However; on R7 and R8,
the BGP routes are being installed into the route table when sync. is
enabled as you will see below:
R7
router bgp 300
bgp log-neighbor-changes
neighbor 136.10.8.8 remote-as 300
neighbor 136.10.8.8 update-source Loopback0
neighbor 136.10.10.1 remote-as 200
neighbor 136.10.10.1 ebgp-multihop 255
neighbor 136.10.10.1 update-source Loopback0
r7#sh ip bgp
BGP table version is 3, local router ID is 136.10.7.7
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 2.2.2.0/24 136.10.10.1 0 200 ?
* i 192.168.80.100 100 0 500 100 200 ?
*> 5.5.5.0/24 136.10.10.1 0 200 ?
* i 192.168.80.100 100 0 500 100 200 ?
r7#sh ip bgp
2.0.0.0/24 is subnetted, 1 subnets
B 2.2.2.0 [20/0] via 136.10.10.1, 09:57:25
5.0.0.0/24 is subnetted, 1 subnets
B 5.5.5.0 [20/0] via 136.10.10.1, 09:57:25
R8
router bgp 300
bgp log-neighbor-changes
neighbor 136.10.7.7 remote-as 300
neighbor 136.10.7.7 update-source Loopback0
neighbor 192.168.80.100 remote-as 500
neighbor 192.168.80.100 route-map asprep out
r8#sb
BGP table version is 3, local router ID is 136.10.8.8
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 2.2.2.0/24 192.168.80.100 0 500 100 200 ?
* i 136.10.10.1 100 0 200 ?
*> 5.5.5.0/24 192.168.80.100 0 500 100 200 ?
* i 136.10.10.1 100 0 200 ?
r8#si b
2.0.0.0/24 is subnetted, 1 subnets
B 2.2.2.0 [20/0] via 192.168.80.100, 00:12:03
5.0.0.0/24 is subnetted, 1 subnets
B 5.5.5.0 [20/0] via 192.168.80.100, 00:12:03
So how are the 2.2.2.0 and 5.5.5.0 routes getting into the route tables if
syncronization is enabled?
This archive was generated by hypermail 2.1.4 : Wed Aug 06 2003 - 06:52:52 GMT-3