Hi Everyone,
i have created simple lab with 4 routers.
R4 - R6- R7- R8
and run ospf as IGP and mpls config. ip cef is enabled
everything is fine, showing mpls forwarding table with labels, but when i run trace, it goes dead over hops where it should show label,
Please tell me what is the issue, why it is not showing labels ?
Route4r# sh mpls ldp neighbor
Peer LDP Ident: 6.6.6.6:0; Local LDP Ident 4.4.4.4:0
TCP connection: 6.6.6.6.57955 - 4.4.4.4.646
State: Oper; Msgs sent/rcvd: 30/31; Downstream
Up time: 00:17:08
LDP discovery sources:
Ethernet0/1, Src IP addr: 100.1.46.6
Addresses bound to peer LDP Ident:
100.1.46.6 100.1.67.6 6.6.6.6
Router4#sh mpls forwarding-table
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or Tunnel Id Switched interface
16 Pop Label 100.1.67.0/24 0 Et0/1 100.1.46.6
17 Pop Label 6.6.6.6/32 0 Et0/1 100.1.46.6
18 18 7.7.7.7/32 0 Et0/1 100.1.46.6
19 17 100.1.78.0/24 0 Et0/1 100.1.46.6
20 19 8.8.8.8/32 0 Et0/1 100.1.46.6
21 20 100.1.89.0/24 0 Et0/1 100.1.46.6
Router4#traceroute 8.8.8.8 source 4.4.4.4
Type escape sequence to abort.
Tracing the route to 8.8.8.8
VRF info: (vrf in name/id, vrf out name/id)
1 * * *
2 * * *
3 100.1.78.8 1 msec 1 msec *
Router#ping 8.8.8.8 source 4.4.4.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
Packet sent with a source address of 4.4.4.4
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
ROUTER CONFIG IS:
R4:
!
interface Loopback0
ip address 4.4.4.4 255.255.255.255
!
interface Ethernet0/1
ip address 100.1.46.4 255.255.255.0
mpls ip
!
router ospf 1
network 4.4.4.4 0.0.0.0 area 0
network 100.1.46.0 0.0.0.255 area 0
!
R6:
interface Loopback0
ip address 6.6.6.6 255.255.255.255
!
interface Ethernet0/1
ip address 100.1.46.6 255.255.255.0
mpls ip
!
interface Ethernet0/2
ip address 100.1.67.6 255.255.255.0
mpls ip
!
router ospf 1
network 6.6.6.6 0.0.0.0 area 0
network 100.1.46.0 0.0.0.255 area 0
network 100.1.67.0 0.0.0.255 area 0
!
R7:
interface Loopback0
ip address 7.7.7.7 255.255.255.255
!
interface Ethernet0/0
ip address 100.1.78.7 255.255.255.0
mpls ip
!
interface Ethernet0/2
ip address 100.1.67.7 255.255.255.0
mpls ip
!
router ospf 1
network 7.7.7.7 0.0.0.0 area 0
network 100.1.67.0 0.0.0.255 area 0
network 100.1.78.0 0.0.0.255 area 0
!
R8::
interface Loopback0
ip address 8.8.8.8 255.255.255.255
!
interface Ethernet0/0
ip address 100.1.78.8 255.255.255.0
mpls ip
!
interface Ethernet0/2
ip address 100.1.89.8 255.255.255.0
mpls ip
!
router ospf 1
network 8.8.8.8 0.0.0.0 area 0
network 100.1.78.0 0.0.0.255 area 0
network 100.1.89.0 0.0.0.255 area 0
!
