Static entries in mac address table

Unanswered Question
Jun 15th, 2011

Hello,

If someone can explain me if is there something i'm missing:

I have a Catalyst 2950, a Catalyst 2960 and two PCs (one multicast server and one multicast receiver).

For the first test :

               one Catalyst 2950 and two PCs

    

                             Group multicast= 234.56.78.90     ======> mac multicast = 0100.5e38.4e5a

                              Sender connected to port fast 0/10

                              Receiver connected to port fast 0/8

                              2950 configuration:

                                          default config +

                                        no ip igmp snooping

                                        mac address-table static 0100.5e38.4e5a vlan 1 interface GigabitEthernet0/10 GigabitEthernet0/8

                    With this configuration the multicast traffic is limited to interface 0/8. There is no flooding.

For the second test :

               one Catalyst 2960 and two PCs

    

                             Group multicast= 234.56.78.90     ======> mac multicast = 0100.5e38.4e5a

                              Sender connected to port fast 0/10

                              Receiver connected to port fast 0/8

                              2960 configuration:

                                         default config +

                                        no ip igmp snooping

                                        mac address-table static 0100.5e38.4e5a vlan 1 interface GigabitEthernet0/10 GigabitEthernet0/8

                   Unfortunatly the traffic is flooded to all ports on vlan 1.

If someone can explain me if is there something i'm missing ....

Best regards,

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Average Rating: 0 (0 ratings)
Yogesh Ramdoss Wed, 06/15/2011 - 19:12

Hello,

I realize that IGMP-Snooping is NOT enabled on 2960 - can you send me the results of "sh plat ip igmp snooping flood" ?

Do you have any SVI up and running for that Vlan ?

Yogesh

YGUENVER_2 Fri, 06/17/2011 - 00:14

Hi Yogesh

Please find here the  show platform ip igmp snooping flood command.

We are interested by vlan 100

    

TU-DMZ-01#sh platform ip igmp snooping flood

vlan    l2rcnt  local       hl3mm      system

----    ------  -----       -----      ------

   1       0    enabled    disabled

   2       0    enabled    disabled

   3       0    enabled    disabled

   4       0    enabled    disabled

   5       0    enabled    disabled

100       0    enabled    disabled

101       0    enabled    disabled

102       0    enabled    disabled

103       0    enabled    disabled

104       0    enabled    disabled

105       0    enabled    disabled

TU-DMZ-

For the last question, there is no SVI up or running for the vlan 100.

Best regards,

Actions

Login or Register to take actions

This Discussion

Posted June 15, 2011 at 7:15 AM
Stats:
Replies:2 Avg. Rating:
Views:391 Votes:0
Shares:0
Tags: No tags.

Discussions Leaderboard

Rank Username Points
1 15,007
2 8,155
3 7,745
4 7,088
5 6,742
Rank Username Points
140
80
78
69
40