Multicast on a single vlan

[sdurn]

Hello,
I need to enable multicast on a single vlan, the multicast sources and receivers are in the same vlan 310 for what I have configure the IGMP snooping on all switches where the multicast servers are connected (and in all switches through wich the transit traffic)   and igmp snooping querier in the interface of level 3 for this vlan310.

We tested this feature with the software SSMPING and have been able to verify that multicast works one way but in the other not, which may be the source of this problem?

the intermediate switches recognizes the correct igmp snooping querier:

CPD#

interface Vlan310

ip address 172.30.7.130 255.255.255.0

ip igmp snooping querier

standby 40 ip 172.30.7.129

SWBL3# show ip igmp snooping querier  
Vlan      IP Address        IGMP Version   Port               
----------------------------------------------------------------
310       172.30.7.130      v3             Po1    

SWBL4#show ip igmp snooping querier  
Vlan      IP Address               IGMP Version   Port            
-------------------------------------------------------------
310       172.30.7.130             v3            Po1 

CPD#show ip igmp snooping statistics

  Current number of Statistics entries    : 23

  Configured Statistics database limit    : 32000

  Configured Statistics database threshold: 25600

  Configured Statistics database limit    : Not exceeded

  Configured Statistics database threshold: Not exceeded

Snooping statistics for Vlan310

#channels: 8

#hosts   : 14

Source/Group                    Interface       Reporter        Uptime   Last-Join Last-Leave

0.0.0.0/224.12.12.2             Vl310:Gi3/9     0.0.0.0         2w5d         -     2w5d     

0.0.0.0/224.12.12.2             Vl310:Gi7/40    0.0.0.0         2w5d         -     2w5d     

0.0.0.0/224.12.12.2             Vl310:Gi8/5     172.31.125.177  2w5d         -     2w5d     

0.0.0.0/224.12.12.2             Vl310:Gi8/23    172.31.125.170  2w5d         -     2w5d     

0.0.0.0/239.255.2.3             Vl310:Gi9/19    172.30.7.204    5d21h    00:00:52  5d18h    

0.0.0.0/224.12.12.2             Vl310:Po35      0.0.0.0         2w5d         -     2w5d     

172.30.7.196/232.43.211.234     Vl310:Po4       172.30.7.137    2w5d     01:03:02      -    

0.0.0.0/231.121.206.196         Vl310:Po74      172.30.7.199    2w5d     00:00:52  1w2d     

0.0.0.0/231.121.212.133         Vl310:Po74      172.30.7.199    2w5d     00:00:52  1w2d     

172.30.7.137/232.43.211.234     Vl310:Po209     172.30.7.196    2w4d     01:11:04  01:11:04 

thanks in advance.

[Amit Singh · Accepted solution]

Could you please breif a bit about toplogy?. A diagram would help, where are the source located and the receivers..how many sources...etc..

[sdurn]

Hi,

There is only one sender and a receiver, which must operate in both directions.

Both are connected to the same VLAN but on different Switches:

VLAN 310:
SRV00395 (172.30.7.137) <-> SWBL3TIC (G0 / 3) <-> SWTIC01 - SPACPD_3 <-> SPACPD_1 <-> SPACPD_2 <-> SWBL43 (G0 / 3) <-> CEPSWMET (172.30.7.196)

thanks!