10-05-2013 02:46 PM
Hi!
I have som issue in my lab. network. My network has running to PE, one P and to CE node. ISIS protocol is running between PE ans P nodes. BGP running with ipv4 and vpnv4 enabled in my backbone. And finally i am running ospf between CE and PE routers. I can see all the networks from samme vrf in routing table in CE router but i am not able to ping dem. What am I missing? Soory for my very bad english and many tanks in advansed!
Please refer to my posted topology
10-05-2013 05:40 PM
Hi,
Do you have mpls enabled between PEs and P nodes?. Can you try "ping mpls ipv4
-Nagendra
10-06-2013 07:33 AM
Hi
Yes, MPLS is enables on participating interfaces. And i can not ping a remote PE loopback interface either
neighbour P node. Here is output of ping and MPLS ldp binding:
ping mpls ipv4 4.4.4.4 255.255.255.0
Sending 5, 100-byte MPLS Echos to 4.4.4.4/24,
lib entry: 34.1.1.0/24, rev 12
local binding: label: 18
lib entry: 80.80.80.0/24, rev 6
local binding: label: imp-null
PE-2#sh mpls ldp bindings
lib entry: 2.2.2.0/24, rev 4
local binding: label: imp-null
lib entry: 3.3.3.0/24, rev 8
local binding: label: 16
lib entry: 4.4.4.0/24, rev 10
local binding: label: 17
lib entry: 23.1.1.0/24, rev 2
local binding: label: imp-null
lib entry: 34.1.1.0/24, rev 12
local binding: label: 18
lib entry: 80.80.80.0/24, rev 6
local binding: label: imp-null
Here is thr output og route table in CE-B2-7 node ) please refer to the attached toplogy figure!
sh ip route:
O IA 192.168.15.0/24 [110/2] via 192.168.27.1, 00:18:39, GigabitEthernet0/0
5.0.0.0/32 is subnetted, 1 subnets
O IA 5.5.5.5 [110/3] via 192.168.27.1, 00:18:39, GigabitEthernet0/0
C 192.168.27.0/24 is directly connected, GigabitEthernet0/0
7.0.0.0/24 is subnetted, 1 subnets
C 7.7.7.0 is directly connected, Loopback0
10-06-2013 08:07 AM
Hi,
The issue is that ou use a /24 mask on the loopback interfaces. OSPF sees the loopback addresses as a /32 while LDP sees them as a /24. You should normally use a /32 mask on loopback interface. This should fix the issue.
Regards
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