unable to ping other Router!

klez0011 · March 2015

hi again sorry from my friend
last night i tshoot 1 basic MPLS scenario and now all CE router (like : MY_IST) can get all route from all protocols and all ospf area but cant ping any CE router ?
whats the problem please help me?
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t3mp · April 2015

MY_IST# sh ip ro 172.16.2.0
Routing entry for 172.16.2.0/30
  Known via "ospf 101", distance 110, metric 65, type inter area
  Last update from 172.16.1.1 on Serial1/2, 00:30:03 ago
  Routing Descriptor Blocks:
  * 172.16.1.1, from 172.16.1.1, 00:30:03 ago, via Serial1/2
      Route metric is 65, traffic share count is 1

MY_IST# traceroute 172.16.2.2
Type escape sequence to abort.
Tracing the route to 172.16.2.2

  1 172.16.1.1 52 msec 36 msec 12 msec
  2  *  *  *
  3  *  *  *
  4^C

So, going to 172.16.1.1 (PE1_AS1) and check route

PE1_AS1# sh ip bgp vpnv4 vrf MY_COMP 172.16.2.0/30
BGP routing table entry for 1:100:172.16.2.0/30, version 12
Paths: (1 available, best #1, table MY_COMP)
  Not advertised to any peer
  Local
    10.10.10.202 (metric 129) from 10.10.10.202 (192.168.202.1)
      Origin incomplete, metric 0, localpref 100, valid, internal, best
      Extended Community: RT:1:100 OSPF DOMAIN ID:0x0005:0x000000650200
        OSPF RT:0.0.0.0:2:0 OSPF ROUTER ID:172.16.2.1:512
      mpls labels in/out nolabel/19

Check next-hop (PE2), it's untagged to P1
PE1_AS1# show mpls forwarding-table 10.10.10.202 32
Local  Outgoing    Prefix            Bytes tag  Outgoing   Next Hop
tag    tag or VC   or Tunnel Id      switched   interface
18     Untagged    10.10.10.202/32   0          Se1/0      point2point

PE1_AS1# ping mpls ipv4 10.10.10.202/32
Sending 5, 100-byte MPLS Echos to 10.10.10.202/32,
     timeout is 2 seconds, send interval is 0 msec:

Codes: '!' - success, 'Q' - request not sent, '.' - timeout,
  'L' - labeled output interface, 'B' - unlabeled output interface,
  'D' - DS Map mismatch, 'F' - no FEC mapping, 'f' - FEC mismatch,
  'M' - malformed request, 'm' - unsupported tlvs, 'N' - no label entry,
  'P' - no rx intf label prot, 'p' - premature termination of LSP,
  'R' - transit router, 'I' - unknown upstream index,
  'X' - unknown return code, 'x' - return code 0

Type escape sequence to abort.
QQQQQ
Success rate is 0 percent (0/5)

PE1_AS1# sh mpls ldp neighbor
PE1_AS1#

PE1_AS1# sh mpls ldp discovery detail
 Local LDP Identifier:
    192.168.101.1:0
    Discovery Sources:
    Interfaces:
        Serial1/0 (ldp): xmit
            Enabled: Interface config
            Hello interval: 5000 ms; Transport IP addr: 192.168.101.1

Check availability transport address from P-1

P1_AS1# sh ip ro 192.168.101.1
% Network not in table

LDP session not established, add route, or change LDPID/Transport address on PE1 and PE2

P1_AS1# sh mpls ldp discovery
 Local LDP Identifier:
    10.10.10.200:0
    Discovery Sources:
    Interfaces:
        Serial1/0 (ldp): xmit/recv
            LDP Id: 192.168.101.1:0; no route
        Serial1/1 (ldp): xmit/recv
            LDP Id: 192.168.202.1:0; no route

PE1_AS1(config)# mpls ldp router-id lo0 force
*Apr  4 20:42:05.219: %LDP-5-NBRCHG: LDP Neighbor 10.10.10.200:0 (1) is UP

PE2_AS1(config)# mpls ldp router-id lo0 force
*Apr  4 20:31:52.983: %LDP-5-NBRCHG: LDP Neighbor 10.10.10.200:0 (1) is UP

Next, we have LDP neighbor's established

P1_AS1# sh mpls ldp neighbor
    Peer LDP Ident: 10.10.10.101:0; Local LDP Ident 10.10.10.200:0
        TCP connection: 10.10.10.101.646 - 10.10.10.200.31622
        State: Oper; Msgs sent/rcvd: 9/11; Downstream
        Up time: 00:01:08
        LDP discovery sources:
          Serial1/0, Src IP addr: 10.10.10.1
        Addresses bound to peer LDP Ident:
          10.10.10.101    172.16.101.1    192.168.101.1   10.10.10.1
    Peer LDP Ident: 10.10.10.202:0; Local LDP Ident 10.10.10.200:0
        TCP connection: 10.10.10.202.45024 - 10.10.10.200.646
        State: Oper; Msgs sent/rcvd: 8/10; Downstream
        Up time: 00:00:25
        LDP discovery sources:
          Serial1/1, Src IP addr: 10.10.10.5
        Addresses bound to peer LDP Ident:
          10.10.10.202    172.16.202.1    192.168.202.1   10.10.10.5

PE1_AS1# ping mpls ipv4 10.10.10.202/32
Sending 5, 100-byte MPLS Echos to 10.10.10.202/32,
     timeout is 2 seconds, send interval is 0 msec:

Codes: '!' - success, 'Q' - request not sent, '.' - timeout,
  'L' - labeled output interface, 'B' - unlabeled output interface,
  'D' - DS Map mismatch, 'F' - no FEC mapping, 'f' - FEC mismatch,
  'M' - malformed request, 'm' - unsupported tlvs, 'N' - no label entry,
  'P' - no rx intf label prot, 'p' - premature termination of LSP,
  'R' - transit router, 'I' - unknown upstream index,
  'X' - unknown return code, 'x' - return code 0

Type escape sequence to abort.
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 44/65/88 ms

PE1_AS1# show mpls forwarding-table 10.10.10.202 32
Local  Outgoing    Prefix            Bytes tag  Outgoing   Next Hop
tag    tag or VC   or Tunnel Id      switched   interface
18     16          10.10.10.202/32   0          Se1/0      point2point

Then check ping from CE again

MY_IST# ping 172.16.2.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 48/65/112 ms

MY_IST# traceroute 172.16.2.2
Type escape sequence to abort.
Tracing the route to 172.16.2.2
  1 172.16.1.1 36 msec 40 msec 8 msec
  2 10.10.10.2 56 msec 64 msec 16 msec
  3 172.16.2.1 40 msec 52 msec 28 msec
  4 172.16.2.2 72 msec 56 msec 48 msec

unable to ping other Router!

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