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Community Member

Interface Vlan is not installed in routing table

Dear All, 

Today I faced a strange problem and I want to share it with you to find what is the problem ? 

we have a VRF for one customer and we use interface vlan to define customer's branch.

 

The customer interface is  VLAN 422 and it is defined under customer VRF probably . 

PE#sh running-config vrf  V3056:RIYADHBANK
Building configuration...

Current configuration : 1321 bytes
ip vrf V3056:RIYADHBANK
 rd 65000:3887
 maximum routes 1400 80
 route-target export 65000:5405
 route-target import 65000:5405
 route-target import 65000:5406
!
!
interface Vlan422
 description By *****
 ip vrf forwarding V3056:RIYADHBANK
 ip address 172.29.12.97 255.255.255.252
 service-policy input 2M_IN
!

PE#sh vlan id 422

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
422   422                                 active    Gi3/0/11 efp_id 422

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
422  enet  100422     1500  -      -      -        -    -        0      0   

Remote SPAN VLAN
----------------
Disabled

Primary Secondary Type              Ports
------- --------- ----------------- ------------------------------------------

PE#

we can see the interface vlan is up 

PE-L3Agg-Khu-107-2#sh int vlan 422 description 
Interface                      Status         Protocol Description
Vl422                          up             up       ****
PE#

and we can see the vlan 422 belongs to the correct VRF

PE#sh vrf V3056:RIYADHBANK
  Name                             Default RD          Protocols   Interfaces
  V3056:RIYADHBANK                 65000:3887          ipv4        Vl627
                                                                   Vl775
                                                                   Vl422
PE#

when we tried to troubleshoot the customer routing we found :

 

PE-L3Agg-Khu-107-2#ping vrf V3056:RIYADHBANK 172.29.12.97

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.29.12.97, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
PE-#

we could not ping the ip address of interface vlan 422.

 

PE#sh ip route vrf V3056:RIYADHBANK 172.29.12.97

Routing Table: V3056:RIYADHBANK
% Subnet not in table
PE#

PE#show ip route vrf V3056:RIYADHBANK connected 

Routing Table: V3056:RIYADHBANK
Codes: L - local, 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, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is 192.168.111.16 to network 0.0.0.0

      172.29.0.0/16 is variably subnetted, 338 subnets, 2 masks
C        172.29.12.44/30 is directly connected, Vlan627
L        172.29.12.45/32 is directly connected, Vlan627
PE-L3Agg-Khu-107-2#
PE-L3Agg-Khu-107-2#

 

My question is: Why the interface vlan 422 is not installed in VRF Table as it is UP ?? 

 

thanks in advance!

Rashed Wardi.

 

2 REPLIES
Cisco Employee

what platform is this? can

what platform is this? can you please paste the output of show version  and show run?

Also when you tested this was int Gi3/0/11  up/up?

Best Regards,

Bheem

Community Member

WE GOT IT,THE PROBLEM WAS THE

WE GOT IT,

THE PROBLEM WAS THE LIMIT UNDER VRF

maximum routes 1400 80

 

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