Hello all.
Another issue with BGP administrative distance
I have two VRFs; a few connected VLANs interfaces and a BGP process to leak routes between these VRFs. Everything works fine.
Now I want to change the administrative distance of BGP in order to get a leaked route only of the route is not natively learnt through an IGP; the "leaking" is only used as a backup path.
Hardware : Cat6500 / VSS / IOS 12.2(33)SXI6
ip vrf Green
rd 65000:2
route-target export 65000:2
route-target import 65000:2
route-target import 65000:3
!
ip vrf Red
rd 65000:3
route-target export 65000:3
route-target import 65000:3
route-target import 65000:2
router bgp 65000
no synchronization
bgp log-neighbor-changes
distance bgp 200 200 200
distance mbgp 199 199 199
no auto-summary
!
address-family ipv4 vrf Red
redistribute connected metric 500
no synchronization
exit-address-family
!
address-family ipv4 vrf Green
redistribute connected metric 500
no synchronization
exit-address-family
CORE-01#show ip route vrf Red
Routing Table: Red
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 6 subnets
B 10.0.10.0 is directly connected, 00:04:31, Vlan10
C 10.0.8.0 is directly connected, Vlan8
C 10.0.6.0 is directly connected, Vlan6
B 10.0.11.0 is directly connected, 00:03:12, Vlan11
B 10.0.9.0 is directly connected, 00:04:31, Vlan9
C 10.0.7.0 is directly connected, Vlan7
CORE-01#show ip route vrf Red 10.0.10.0
Routing entry for 10.0.10.0/24
Known via "bgp 65000", distance 20, metric 500 (connected, via interface), type external
Routing Descriptor Blocks:
* directly connected, via Vlan10
Route metric is 500, traffic share count is 1
AS Hops 0
MPLS label: none
CORE-01#show ip bgp vpnv4 all
BGP table version is 19, local router ID is 172.16.201.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 65000:2 (default for vrf Green)
*> 10.0.6.0/24 0.0.0.0 500 32768 ?
*> 10.0.7.0/24 0.0.0.0 500 32768 ?
*> 10.0.8.0/24 0.0.0.0 500 32768 ?
*> 10.0.9.0/24 0.0.0.0 500 32768 ?
*> 10.0.10.0/24 0.0.0.0 500 32768 ?
*> 10.0.11.0/24 0.0.0.0 500 32768 ?
Route Distinguisher: 65000:3 (default for vrf Red)
*> 10.0.6.0/24 0.0.0.0 500 32768 ?
*> 10.0.7.0/24 0.0.0.0 500 32768 ?
*> 10.0.8.0/24 0.0.0.0 500 32768 ?
*> 10.0.9.0/24 0.0.0.0 500 32768 ?
*> 10.0.10.0/24 0.0.0.0 500 32768 ?
*> 10.0.11.0/24 0.0.0.0 500 32768 ?
