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How to get L3 multicasting working on MSR30-20/20-20, or even an A6602HSR

MDella
Advisor

How to get L3 multicasting working on MSR30-20/20-20, or even an A6602HSR

I'm in the process of implementing Ganglia (http://ganglia.sourceforge.net/) on our operational hosts that are spread on multiple different networks. Our data collection nodes are on a fourth network. All of these communicate over Multicast (specifically 239.2.11.71:8649).

 

Note that the "generators" of the multicasting are on VID 101, 102, 103 and the consumer is VID 100

 

The issue is trying to get one of the following routers to move the traffic between networks.  Doesn't matter which of the above listed routers I use, same problem.  Overall configuration is as follows:

 

#
multicast routing-enable
#

interface GigabitEthernet0/0.1

 vlan-type dot1q vid 101

 ip address 172.24.64.5 255.255.248.0
 vrrp vrid 101 virtual-ip 172.24.64.4
 vrrp vrid 101 priority 110
 igmp enable
 pim dm

#

interface GigabitEthernet0/0.2

 vlan-type dot1q vid 102

 ip address 172.24.72.2 255.255.248.0
 vrrp vrid 102 virtual-ip 172.24.72.1
 vrrp vrid 102 priority 110
 igmp enable
 pim dm

#

interface GigabitEthernet0/0.3

 vlan-type dot1q vid 103

 ip address 172.24.80.2 255.255.248.0
 vrrp vrid 103 virtual-ip 172.24.80.1
 vrrp vrid 103 priority 110
 igmp enable
 pim dm

#

interface GigabitEthernet0/0.10

 vlan-type dot1q vid 100

 ip address 172.24.124.5 255.255.252.0
 vrrp vrid 100 virtual-ip 172.24.124.4
 vrrp vrid 100 priority 110
 igmp enable
 pim dm

#

 

 

 

While testing I get the following:

# display igmp group
Total 3 IGMP Group(s).
Interface group report information of VPN-Instance: public net
 GigabitEthernet0/0.10(172.24.124.5):
  Total 2 IGMP Groups reported
   Group Address Last Reporter Uptime Expires
   224.2.2.4 172.24.124.19 2w:2d 00:01:41
   239.2.11.71 172.24.124.17 17w:6d 00:01:36
 GigabitEthernet0/0.2(172.24.72.5):
  Total 1 IGMP Group reported
   Group Address Last Reporter Uptime Expires
   239.2.11.71 172.24.72.33 17w:6d 00:01:35

display pim routing-table
 VPN-Instance: public net
 Total 2 (*, G) entries; 5 (S, G) entries

 

 (*, 224.2.2.4)
     Protocol: pim-dm, Flag: WC
     UpTime: 11:14:47
     Upstream interface: NULL
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 1
         1: GigabitEthernet0/0.10
             Protocol: igmp, UpTime: 11:14:47, Expires: never

 

 (*, 239.2.11.71) 
     Protocol: pim-dm, Flag: WC
     UpTime: 11:14:47
     Upstream interface: NULL
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 2
         1: GigabitEthernet0/0.10
             Protocol: igmp, UpTime: 11:14:47, Expires: never
         2: GigabitEthernet0/0.2
             Protocol: igmp, UpTime: 11:14:12, Expires: never

 

 (172.24.72.33, 239.2.11.71)
     Protocol: pim-dm, Flag: LOC ACT
     UpTime: 11:14:04
     Upstream interface: GigabitEthernet0/0.2
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 1
         1: GigabitEthernet0/0.10
             Protocol: pim-dm, UpTime: 11:14:04, Expires: never

 

 (172.24.72.65, 239.2.11.71)
     Protocol: pim-dm, Flag: LOC ACT
     UpTime: 11:14:04
     Upstream interface: GigabitEthernet0/0.2
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 1
         1: GigabitEthernet0/0.10
             Protocol: pim-dm, UpTime: 11:14:04, Expires: never

 

 (172.24.124.17, 239.2.11.71)
     Protocol: pim-dm, Flag: LOC ACT
     UpTime: 11:14:39
     Upstream interface: GigabitEthernet0/0.10
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information: None

 

 (172.24.124.18, 239.2.11.71)

     Protocol: pim-dm, Flag: LOC ACT
     UpTime: 11:14:34
     Upstream interface: GigabitEthernet0/0.10
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information: None

 

 (172.24.124.19, 239.2.11.71)
     Protocol: pim-dm, Flag: LOC ACT
     UpTime: 11:14:39
     Upstream interface: GigabitEthernet0/0.10
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information: None

 

# display pim neighbor

VPN-Instance: public net
Total Number of Neighbors = 5

Neighbor    Interface    Uptime    Expires    Dr-Priority    Mode
 172.24.72.6    GE0/0.2    03:13:46    00:01:26    1
 172.24.80.6    GE0/0.3    03:13:50    00:01:23    1
 172.24.88.6    GE0/0.4    03:13:53    00:01:21    1
 172.24.124.6    GE0/0.10    03:14:00    00:01:44    1

 

display multicast routing-table
Multicast routing table of VPN-Instance: public net
 Total 5 entries

 

 00001. (172.24.72.33, 239.2.11.71)
      Uptime: 11:27:18
      Upstream Interface: GigabitEthernet0/0.2
      List of 1 downstream interface
          1: GigabitEthernet0/0.10

 

00002. (172.24.72.65, 239.2.11.71)
      Uptime: 11:27:18
      Upstream Interface: GigabitEthernet0/0.2
      List of 1 downstream interface
          1: GigabitEthernet0/0.10

 

00003. (172.24.124.17, 239.2.11.71)
      Uptime: 11:27:53
      Upstream Interface: GigabitEthernet0/0.10

 

00004. (172.24.124.18, 239.2.11.71)
      Uptime: 11:27:48
      Upstream Interface: GigabitEthernet0/0.10

 

00005. (172.24.124.19, 239.2.11.71)
      Uptime: 11:27:53
      Upstream Interface: GigabitEthernet0/0.10

 

#