Using Tracert to Test the Forwarding Path on a VPLS Network

Procedure

1. To locate the faulty node on the VPLS network, run either of the following commands as required:
   • In BGP mode, run:

     tracert vpls [ -exp exp-value | -f first-ttl | -m max-ttl | -r reply-mode | -t timeout-value | -g ] * vsi vsi-name local-site-id remote-site-id [ full-lsp-path ] [ detail ] [ bypass -si interface-type interface-number ]

   • In LDP mode, run:

     tracert vpls [ -exp exp-value | -f first-ttl | -m max-ttl | -r reply-mode | -t timeout-value | -g ] * vsi vsi-name peer peer-address [ negotiate-vc-id vc-id ] [ full-lsp-path ] [ control-word  ] [ pipe | uniform ] [ detail ] [ bypass -si interface-type interface-number ]

   Run the tracert vpls command to locate VPLS network faults.

   <HUAWEI>tracert vpls vsi test 10 10 full-lsp-path  
   PW Trace Route FEC: L2 VPN ENDPOINT. Sender VEID = 10, Remote VEID = 20, press CTRL_C to break 
   TTL    Replier            Time    Type      Downstream 
   0                                 Ingress   10.1.1.2/[294929 32894 32888 ] 
   1      10.1.1.2           93 ms   Transit   10.2.1.2/[32925 3 ] 
   2      10.2.1.2           1 ms    Transit   10.3.1.2/[32881 ] 
   3      4.4.4.4            2 ms    Egress 

   The preceding command output contains information about each node along the PW and the response time of each hop.