[Xorp-users] help testing multicast config

Ron Young ron at nscee.edu
Fri Nov 13 09:40:56 PST 2009


Hi everyone:

   I'm brand new to xorp & multicasting and would like some ideas on how to 
   test my xorp configuration. The configuration was gleaned from previous
   xorp postings. I have attached a copy of the conf file below. Xorp is 
   running on ubuntu server 9.04.

   Interface eth1 is the connection to the internet (aaa.bbb.220.194/30).
   Interface eth2 is the connection to the internal net (aaa.bbb.118.0/24).

   When I run ssmping from the xorp router, I get the unicast replies but 
   no multicast replies. Is this to be expected if there no multicast
   clients joined in a group?

   Any help would be appreciated, thanks

   -ron

root at i2-core:/etc/xorp# cat config.boot
fea {
    unicast-forwarding4 {
    	disable: false
    }
    targetname: "fea"
}

interfaces {
   interface eth1 {
     description: "gateway interface"
     disable: false
     default-system-config
   }

   interface eth2 {
     description: "Internal network interface"
     disable: false
     default-system-config
   }
   targetname: "fea"
}

plumbing {
    mfea4 {
	 disable: false
	 interface eth2 {
	     vif eth2 { disable: false }
	}

	interface eth1 {
	     vif eth1 {	disable: false }
	}

	interface register_vif {
	   vif register_vif { disable: false }
	}

	traceoptions { flag { all { disable: false } }
	}

	targetname: "MFEA_4"
    }
}

protocols {
	  igmp {
	       interface eth1 {
	       	   vif eth1 { disable: false	}
	       }

	       interface eth2 {
		    vif eth2 { disable: false }
		}

		traceoptions { flag { all { disable: false } }
          }

	targetname: "IGMP"
	disable: false
    }

    pimsm4 {
	disable: false
	interface eth1 {
	    vif eth1 { disable: false
	    	       dr-priority: 1
	    }
        }

	interface eth2 {
	    vif eth2 { disable: false
		       dr-priority: 1
	    }
	}

	interface register_vif {
	    vif register_vif { disable: false
			       dr-priority: 1
	    }
	}

	static-rps {
	   rp aaa.bbb.118.1 {
		group-prefix 224.0.0.0/4 { rp-priority: 192
					   hash-mask-len: 30
					 }
	   }
	}
 
	traceoptions { flag { all { disable: false } } }
	targetname: "PIMSM_4"
    }

    fib2mrib { disable: false
	       targetname: "fib2mrib"
	     }
}
root at i2-core:/etc/xorp# 


root at i2-core:/home/ron# ssmping flo.nrc.ca
ssmping joined (S,G) = (132.246.2.20,232.43.211.234)
pinging S from aaa.bbb.220.194
  unicast from 132.246.2.20, seq=1 dist=11 time=125.006 ms
  unicast from 132.246.2.20, seq=2 dist=11 time=113.689 ms
  unicast from 132.246.2.20, seq=3 dist=11 time=113.698 ms
  unicast from 132.246.2.20, seq=4 dist=11 time=114.030 ms
  unicast from 132.246.2.20, seq=5 dist=11 time=113.642 ms
  unicast from 132.246.2.20, seq=6 dist=11 time=113.613 ms
  unicast from 132.246.2.20, seq=7 dist=11 time=113.637 ms
  unicast from 132.246.2.20, seq=8 dist=11 time=113.611 ms
  unicast from 132.246.2.20, seq=9 dist=11 time=113.579 ms
  unicast from 132.246.2.20, seq=10 dist=11 time=113.698 ms
^C
--- 132.246.2.20 statistics ---
10 packets transmitted, time 9205 ms
unicast:
   10 packets received, 0% packet loss
   rtt min/avg/max/std-dev = 113.579/114.820/125.006/3.407 ms
multicast:
   0 packets received, 100% packet loss
root at i2-core:/home/ron# 

===============================================================================
Ron Young, Research Support Analyst
National Supercomputing Center for Energy and the Environment
4505 Maryland Parkway, Box 454028, Las Vegas, NV 89154-4028
v (702) 895-4017 / f (702) 895-4156 / email: ron.young at nscee.edu



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