Multicast traffic over two S-3048 connected by port-channel

Question

Hi,

I have 2 S3048 interconnect at Port 51 and 52, and configured Port-Channel 10. Both switches are at 10.4.2 firmware.

The interlink is trunk to allow VLAN 10. I have IGMP Snooping enabled globally and for VLAN 10. Mrouter interface configured for Port-Channel 10 of both switches. I have only 1 IP IGMP Snooping Querier configured in one 1 switch i.e. on SW1.

Issue: Multicast streams are ok at each individual switch i.e. both Source and Receivers on same switch. However, if I have the Source and Receiver at different switch, the Receiver will not be able to get the multicast stream. I can see the multicast group created when I do a " show ip igmp snooping groups".

Below is a snapshot configuration of SW1. SW2 is almost similar config except that I did not enable querier on SW2 interface vlan 10.

Need some help if anyone knows the possibly mistake in the configuration? Thanks so much.

SW1# show running-configuration
! Version 10.4.2.0
!
ip igmp snooping enable
iscsi enable
iscsi target port 860
iscsi target port 3260
spanning-tree vlan 10 priority 0
!
!
interface vlan1
no shutdown
!
interface vlan10
no shutdown
ip address 192.168.10.1/24
ip igmp version 2
ip igmp snooping mrouter interface port-channel10
ip igmp snooping querier
ip igmp snooping fast-leave
!
interface port-channel10
no shutdown
switchport mode trunk
switchport access vlan 1
switchport trunk allowed vlan 10
!
interface ethernet1/1/1
no shutdown
switchport access vlan 10
mtu 11968
flowcontrol receive on
!
.......
!
interface ethernet1/1/51
no shutdown
channel-group 10 mode active
no switchport
mtu 11968
flowcontrol receive on
!
interface ethernet1/1/52
no shutdown
channel-group 10 mode active
no switchport
mtu 11968
flowcontrol receive on
!

DELL-Josh Cr · Answer

Hi Tkpoh, It is just multicast streams that are not working? Other traffic is fine? What is the output of show ip igmp snooping interface and show ip igmp snooping mrouter?

Tkpoh · Answer

Hi,

Everything is working fine over the LACP. Except only Multicast Stream.

Putting Source and Receiver on SW 1. Below is the show ip igmp results. Stream is OK.

SW1# show ip igmp snooping mrouter
Interface Router Ports
vlan10 port-channel10

SW1# show ip igmp snooping interface vlan 10
Vlan10 is up, line protocol is up
IGMP version is 2
IGMP snooping is enabled on interface
IGMP snooping query interval is 60 seconds
IGMP snooping querier timeout is 130 seconds
IGMP snooping last member query response interval is 1000 ms
IGMP Snooping max response time is 10 seconds
IGMP snooping fast-leave is enabled on this interface
IGMP snooping querier is enabled on this interface

SW1# show ip igmp snooping groups
Total Number of Groups: 3
IGMP Connected Group Membership
Group Address                 Interface           Mode                Expires
224.0.0.251                   vlan10              IGMPv2-Compat       00:02:00
Member-ports :ethernet1/1/1,ethernet1/1/3
225.1.0.0                     vlan10              IGMPv2-Compat       00:02:07
Member-ports :ethernet1/1/1,ethernet1/1/3
225.2.0.3                     vlan10              IGMPv2-Compat       00:02:05
Member-ports :ethernet1/1/1,ethernet1/1/3

SW1#

Moved the Source and Receiver to SW 2. Below is the show ip igmp results. Stream is OK.

SW2# show ip igmp snooping mrouter
Interface Router Ports
vlan10 port-channel10

SW2# show ip igmp snooping interface vlan 10
Vlan10 is up, line protocol is up
IGMP version is 2
IGMP snooping is enabled on interface
IGMP snooping query interval is 60 seconds
IGMP snooping querier timeout is 130 seconds
IGMP snooping last member query response interval is 1000 ms
IGMP Snooping max response time is 10 seconds
IGMP snooping fast-leave is enabled on this interface
IGMP snooping querier is disabled on this interface

SW2# show ip igmp snooping groups
Total Number of Groups: 3
IGMP Connected Group Membership
Group Address                 Interface           Mode                Expires
224.0.0.251                   vlan10              IGMPv2-Compat       00:02:07
Member-ports :ethernet1/1/1,ethernet1/1/2
225.1.0.0                     vlan10              IGMPv2-Compat       00:02:02
Member-ports :ethernet1/1/1,ethernet1/1/2
225.2.0.3                     vlan10              IGMPv2-Compat       00:02:07
Member-ports :ethernet1/1/1,ethernet1/1/2

SW2#

Putting Source on SW1 and Receiver on SW2. Below is the ip igmp snooping groups info on SW1 and SW2. Cannot receive stream.

Source is plugged in SW 1 Port 1

SW1# show ip igmp snooping groups
Total Number of Groups: 3
IGMP Connected Group Membership
Group Address                 Interface           Mode                Expires
224.0.0.251                   vlan10              IGMPv2-Compat       00:02:08
Member-ports :ethernet1/1/1
225.1.0.0                     vlan10              IGMPv2-Compat       00:02:03
Member-ports :ethernet1/1/1
225.2.0.3                     vlan10              IGMPv2-Compat       00:01:58
Member-ports :ethernet1/1/1
SW1#

Receiver is plugged in SW 2 Port 2

SW2# show ip igmp snooping groups
Total Number of Groups: 3
IGMP Connected Group Membership
Group Address                 Interface           Mode                Expires
224.0.0.251                   vlan10              IGMPv2-Compat       00:01:57
Member-ports :ethernet1/1/2
225.1.0.0                     vlan10              IGMPv2-Compat       00:02:08
Member-ports :ethernet1/1/2
225.2.0.3                     vlan10              IGMPv2-Compat       00:02:03
Member-ports :ethernet1/1/2
SW2#

Below is show lacp port-channel info on SW1

SW1# show lacp port-channel
Port-channel 10 admin up, oper up, mode lacp
Actor System ID: Priority 32768, Address 8c:04:ba:dd:26:c0
Partner System ID: Priority 32768, Address 8c:04:ba:dd:57:c0
Actor Admin Key 10, Oper Key 10, Partner Oper Key 10
Fallback: Not configured, Fallback port preemption: Configured, Fallback timeout: 15 seconds
LACP LAG ID 10 is an aggregatable link
A - Active LACP, B - Passive LACP, C - Short Timeout, D - Long Timeout
E - Aggregatable Link, F - Individual Link, G - IN_SYNC, H - OUT_OF_SYNC,
I - Collection enabled, J - Collection disabled, K - Distribution enabled,
L - Distribution disabled, M - Partner Defaulted, N - Partner Non-defaulted,
O - Receiver is in expired state, P - Receiver is not in expired state
Port ethernet1/1/51 is Enabled, LACP is enabled and mode is lacp
Actor Admin: State ADEHJLMP Key 10 Priority 32768
     Oper: State ADEGIKNP Key 10 Priority 32768
Partner Admin: State BDEGIKMP Key 0 Priority 0
     Oper: State ADEGIKNP Key 10 Priority 32768
Port ethernet1/1/52 is Enabled, LACP is enabled and mode is lacp
Actor Admin: State ADEHJLMP Key 10 Priority 32768
     Oper: State ADEGIKNP Key 10 Priority 32768
Partner Admin: State BDEGIKMP Key 0 Priority 0
     Oper: State ADEGIKNP Key 10 Priority 32768
SW1#

DELL-Josh Cr · Answer

Can you private message me the service tags?

alawc · Answer

Hey @DELL-Josh Cr - Did you come to a resolution here? I'm having a similar issue with the same model switch, but over a hybrid port (snooping & querrier enabled just like here).

DELL-Josh Cr · Answer

Hi alawc, We did not, I believe the original poster called phone support, but I am not sure of the resolution.

Networking General

Multicast traffic over two S-3048 connected by port-channel

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