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New Member
Posts: 4
Registered: ‎10-18-2017

Block Multicast traffic ES-24/48

Hi,

 

We have a scenario where we uses multicast trafic for distributing video and this part works good. Our problem is when connecting any other device such as a AP then the AP gets unresponsive.

 

We have tried to disable IGMP on this port but it still behavies like this.

 

We have tested 1.7.3 and 1.7.4 with same result.

 

Any ideas on what we should do?

Member
Posts: 144
Registered: ‎01-10-2016
Kudos: 25
Solutions: 7

Re: Block Multicast traffic ES-24/48

This is the purpose of IGMP snooping and the IGMP querier. With those enabled and properly configured, the switch will be aware of the ports that actually need the multicast traffic, and won't send it to ports that don't need it.

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New Member
Posts: 4
Registered: ‎10-18-2017

Re: Block Multicast traffic ES-24/48

Hi,

We have IGMP Snooping and IGMP Querier enabled as it should but as I wrote, AP and other devices get unresponsive. Looking in new interface we can see the ports of theese devices getting same load as the video.


My setup:

network protocol none
network parms 192.168.1.252 255.255.255.0 192.168.1.1
vlan database
vlan 999
vlan name 999 "VLAN 999"
set igmp querier 999
set igmp querier election participate 999
exit
configure
line console
exit
line telnet
exit
line ssh
exit
!
set igmp
set igmp querier
set igmp querier query-interval 30
set igmp querier timer expiry 100
interface 0/1
set igmp
set igmp groupmembership-interval 100
mtu 9216
vlan participation include 999
vlan tagging 999
exit
interface 0/2
set igmp
set igmp groupmembership-interval 100
set igmp fast-leave
mtu 9216
vlan participation include 999
vlan tagging 999
exit
interface 0/3
set igmp
set igmp groupmembership-interval 100
set igmp fast-leave
mtu 9216
vlan participation include 999
vlan tagging 999
exit
interface 0/4
Established Member
Posts: 910
Registered: ‎02-04-2015
Kudos: 527
Solutions: 36

Re: Block Multicast traffic ES-24/48

That's odd, I use IGMP Snooping on my ES for this same reason, keeping multicast traffic off of my AP, and it works well.  I am doing a few things differently than you:

 

1. I am not using IGMP Querier.  I don't know anything about it, I'll admit, but my setup works well without it.

 

2. IGMP Snooping is turned on for my VLANs (i.e. my vlan database looks like this)

 

vlan database
vlan 2
vlan name 2 "maxTV"
set igmp fast-leave 1
set igmp 2
set igmp fast-leave 2
set igmp report-suppression 2
exit

fast-leave and report-suppression shouldn't be related to your problems. But try adding "set igmp 999" to your VLAN database. I'm assuming all of this traffic is on VLAN 999.  In the GUI I believe you go to Switching > IGMP Snooping > VLAN Status to add your VLAN.

 

3. I manually set the Multicast Router.  Some people say you shouldn't have to identify the multicast router(s) (the multicast sources) but I always do.  You just have to select the ports/VLANs involved under Switching > IGMP Snooping > Multicast Router (there are 3 tabs)

 

Maybe give those a try and let us know what happens.

New Member
Posts: 4
Registered: ‎10-18-2017

Re: Block Multicast traffic ES-24/48

Hi,

 

Thanks for your feedback, what firmware are you running?

Established Member
Posts: 910
Registered: ‎02-04-2015
Kudos: 527
Solutions: 36

Re: Block Multicast traffic ES-24/48

1.7.4 currently.  I'm trying to remember how long I have been doing this for, I am thinking:

 

1.7.3 - yes

1.7.1 - probably

1.7.0 - I think so

1.6.0 - probably not

1.5.0 - definitely not

 

Not saying that it would not work on 1.5.0 but I never tried it on that FW.

New Member
Posts: 4
Registered: ‎10-18-2017

Re: Block Multicast traffic ES-24/48

Ok, so then 1.7.4 should work and I will start from there.
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