Hi,
I am having a weird Issue. Appreciate if someone could please help me out. I am using WS-C4500X.
Topology:
R3 has BGP peering with DC1SW1 in VRF -Orange
There are 3 VRF configured on DC1SW1 ā
- Orange
- B1
- F1
There are 2 VRF configured on DC2SW1
- B1
- F1
B1 VRF between DC1SW1 and DC2SW2 connected via OSPF through link 1
F1 VRF between DCSW1 and DC2SW1 via bgp
Now the goal is to reach from R2 B1 VRF to Orange VRF prefix. I redistributed BGP route in ospf in DC1SW1 under ospf process and OSPF into BGP.
I can get the redistributed prefix into OSPF Database on both DC1SW1 and DC2SW2 but not in ospf routing table and ultimately cant reach any Orage prefix from DC2.
Configuration:
DC1SW1:
###############
###############
ip vrf F1
description F1
rd 2:1
route-target export 2:1
route-target import 2:1
route-target import 3:3
route-target import 3:1
!
ip vrf B1
description B1
rd 2:2
route-target export 2:2
route-target import 2:2
route-target import 3:3
route-target import 1:1
ip vrf Orange
rd 1:1
route-target export 1:1
route-target import 1:1
route-target import 2:1
route-target import 2:2
router bgp 2
bgp router-id 129.2.2.2
bgp log-neighbor-changes
!
address-family ipv4
bgp redistribute-internal
exit-address-family
!
address-family ipv4 vrf B1
redistribute connected route-map B1-con-pre
redistribute static route-map B1-adv-pre
redistribute ospf 2 match internal external 1 external 2 route-map O2B
exit-address-family
!
address-family ipv4 vrf F1
network 10.133.1.84 mask 255.255.255.255
network 129.9.4.0 mask 255.255.248.0
network 129.9.8.0 mask 255.255.252.0
network 1.5.1.0 mask 255.255.252.0
redistribute connected
neighbor 10.224.252.2 remote-as 3
neighbor 10.224.252.2 description DC2SW1 VRF F1
neighbor 10.224.252.2 update-source Vlan501
neighbor 10.224.252.2 activate
neighbor 10.224.252.2 soft-reconfiguration inbound
!
address-family ipv4 vrf Orange
redistribute connected
neighbor 10.240.9.1 remote-as 1
neighbor 10.240.9.1 update-source Vlan106
neighbor 10.240.9.1 activate
neighbor 10.240.9.1 soft-reconfiguration inbound
exit-address-family
route-map B2O permit 10
set tag 2
!
route-map O2B deny 10
match tag 2
!
route-map O2B permit 20
#######OSPF######
router ospf 2 vrf B1
router-id 10.224.252.5
redistribute static subnets
redistribute bgp 2 subnets route-map B2O
passive-interface default
no passive-interface Vlan502
network 10.224.252.4 0.0.0.3 area 0
network 0.0.0.0 255.255.255.255 area 0
!
OSPF Output :
sh ip os 2 da
Link ID ADV Router Age Seq# Checksum Tag
10.240.1.0 10.224.252.5 126 0x8000000C 0x00CC87 2
10.240.9.0 10.224.252.5 126 0x8000000C 0x0062EC 2
10.240.10.0 10.224.252.5 126 0x8000000C 0x0069E1 2
10.240.11.0 10.224.252.5 128 0x8000000C 0x005EEB 2
10.240.12.0 10.224.252.5 128 0x8000000C 0x0053F5 2
10.240.13.0 10.224.252.5 128 0x8000000C 0x0048FF 2
10.240.14.0 10.224.252.5 128 0x8000000C 0x003D0A 2
10.240.15.0 10.224.252.5 128 0x8000000C 0x003214 2
10.240.20.0 10.224.252.5 128 0x8000000C 0x00FA46 2
10.240.21.0 10.224.252.5 128 0x8000000C 0x00EF50 2
10.240.22.0 10.224.252.5 128 0x8000000C 0x00E45A 2
Redistributed prefix not in OSPF routes
sh ip rou vrf B1 os
10.0.0.0/8 is variably subnetted, 37 subnets, 6 masks
O E2 10.115.249.80/28 [110/20] via 10.224.252.6, 16:41:52, Vlan502
O 10.115.249.96/28 [110/2] via 10.224.252.6, 16:41:52, Vlan502
O E2 10.224.200.0/23 [110/20] via 10.224.252.6, 16:41:52, Vlan502
DC1SW1# sh ip route vrf B1 10.240.1.0
Routing Table: boh
Routing entry for 10.240.1.0/24
Known via "bgp 2", distance 20, metric 0
Tag 31898, type external
Redistributing via ospf 2
Advertised by ospf 2 subnets route-map B2O
Last update from 10.240.9.1 7w0d ago
Routing Descriptor Blocks:
* 10.240.9.1 (oci), from 10.240.9.1, 7w0d ago
Route metric is 0, traffic share count is 1
AS Hops 1
Route tag 1
MPLS label: none
DC2SW1:
###############
###############
router bgp 3
bgp router-id 140.3.3.1
bgp log-neighbor-changes
!
address-family ipv4 vrf F1
network 10.133.1.84 mask 255.255.255.255
redistribute connected
neighbor 10.224.252.1 remote-as 2
neighbor 10.224.252.1 description DC1SW1
neighbor 10.224.252.1 update-source Vlan501
neighbor 10.224.252.1 activate
neighbor 10.224.252.1 soft-reconfiguration inbound
exit-address-family
router ospf 2 vrf B1
router-id 10.224.252.6
redistribute connected subnets
redistribute static subnets
passive-interface default
no passive-interface Vlan502
network 10.224.252.4 0.0.0.3 area 0
network 0.0.0.0 255.255.255.255 area 0
!
DC2SW1
sh ip os 2 da
Link ID ADV Router Age Seq# Checksum Tag
10.240.1.0 10.224.252.5 404 0x8000000C 0x00CC87 2
10.240.9.0 10.224.252.5 404 0x8000000C 0x0062EC 2
10.240.10.0 10.224.252.5 404 0x8000000C 0x0069E1 2
10.240.11.0 10.224.252.5 404 0x8000000C 0x005EEB 2
10.240.12.0 10.224.252.5 404 0x8000000C 0x0053F5 2
10.240.13.0 10.224.252.5 404 0x8000000C 0x0048FF 2
10.240.14.0 10.224.252.5 404 0x8000000C 0x003D0A 2
10.240.15.0 10.224.252.5 404 0x8000000C 0x003214 2
10.240.20.0 10.224.252.5 404 0x8000000C 0x00FA46 2
10.240.21.0 10.224.252.5 404 0x8000000C 0x00EF50 2
10.240.22.0 10.224.252.5 404 0x8000000C 0x00E45A 2
DC2SW2#sh ip rou vrf B1 10.240.1.0
Routing Table: B1
% Subnet not in table
Orange prefixs are in F1 vrf in DC2SW1 .
Any idea why DC1SW1 not installing redistributed bgp routes into OSPF
Note: I truncated few outputs and Naming and prefixes for security reason
