3com S7906E Guide De Référence

 

1-11 

mtracert source-address [ [ last-hop-router-address ] group-address ] 

Any view 

1: Monitor level 

source-address: Specifies a multicast source address.  

group-address: Specifies a multicast group address, in the range of 224.0.1.0 to 239.255.255.255.  

last-hop-router-address: Specifies a last-hop router address, which is the IP address of the local router 

by default.  

Use the mtracert command to trace the path down which the multicast traffic flows to the last-hop 

router.  

Note that if the last-hop-router-address  argument is given in the command to trace the path for a 

specific (S, G) multicast stream, the interface corresponding to the last-hop router address must be the 

outgoing interface for the (S, G) entry; otherwise the multicast traceroute will fail.  

# Trace the path down which the (6.6.6.6, 225.2.1.1) multicast traffic flows to the last-hop router with an 

IP address of 5.5.5.8.  

<Sysname> mtracert 6.6.6.6 5.5.5.8 225.2.1.1 

 Type Ctrl+C to quit mtrace facility 

  Tracing reverse path of (6.6.6.6, 225.2.1.1) from last-hop router (5.5.5.8) to source via 

multicast routing-table 

 

 -1 5.5.5.8 

   Incoming interface address: 4.4.4.8 

   Previous-hop router address: 4.4.4.7 

   Input packet count on incoming interface: 17837 

   Output packet count on outgoing interface: 0 

   Total number of packets for this source-group pair: 8000 

   Protocol: PIM 

   Forwarding TTL: 0 

   Forwarding code: No error 

 

 -2 4.4.4.7 

   Incoming interface address: 6.6.6.7 

   Previous-hop router address: 0.0.0.0 

   Input packet count on incoming interface: 2 

   Output packet count on outgoing interface: 259