Ethernet MPLS BGP connectivity problem

[Vishnu Reddy]

Hi Guys,

I am facing an issue at the Datacenter. Initially when I was trying to connect to WAN router there was no physical connectivity the interface was down and line protocol was down. After communicating with Service provider for BGP peering everything seems to be correct as per the IP addresses and ASN numbers. Later checked with Datacenter people that the cross-connect between the SP's demark to our cage (patch panel) was not provisioned. We got this done and now I see the G0/1 interface up and the line protocol is up. But I am not learning the MAC address from my equipment and my service provider is also not learning MAC address from their equipment. Hence can't ping peer IP address. Service provider is trying to communicate with LEC to verify everything is correct from their end. Did any one of you guys ever gone through this type of problem? What can be done at my side for further testing?

Any ideas suggestion greatly appreciated.

[Richard Burts]

Your post mentions an ISP, a patch panel, and a WAN router. Is there any other equipment involved in this?

When you say that you are not learning the MAC address from your equipment what are you looking at? Where are you looking for the MAC address of your equipment? Can you help us understand what you mean when you say that the service provider is not learning their MAC address? Where would they be learning their MAC address?

If you post the configuration of the interface and the output of show interface perhaps we could understand a bit more about your problem.

Is it possible that the service provider has configured this connection to use dot1q vlan tagging? If so does your router interface have configuration for vlan tagging?

HTH

Rick

[Vishnu Reddy]

Thanks for your reply.

GigabitEthernet0/1 is up, line protocol is up
  Hardware is PQ3_TSEC, address is e4d3.f1e1.c261 (bia e4d3.f1e1.c261)
  Description: L3 MPLS CID XXXXXXXXXXXXXXXX
  Internet address is XXX.XXX.0.30/30
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 100Mbps, media type is RJ45
  output flow-control is unsupported, input flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 01:31:38, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: Class-based queueing
  Output queue: 0/1000/0 (size/max total/drops)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     3375 packets output, 289432 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     1 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
 

I am trying to learn the MAC address of PE router(Service provider) and SP is trying to learn the my router's(2951 ISR G2) G0/1 interface mac address.

We are trying to establish a EBGP from 2951 ISR G2 to Service provider(PE).

Both end points are ethernet but I am not sure what LEC are using(fiber) and doing conversion etc.

I am not seeing any incoming traffic neither SP do.

SP is verifying with the LEC for futher testing.

No sure what could be the problem.

[Richard Burts]

I suggest that you check with the SP (and perhaps the LEC) and ask specifically whether they are configured for dot1q trunking on the connection.

HTH

Rick

[Vishnu Reddy]

Thanks Rick. I will make a note of it and update the case once completed.