Matrix: Can I connect E-IPA to SSM devices
Nov 18, 2024 Using EHX V14.0 or later SSM mode is now supported on the IPA card
Mar 26, 2024 Using EHX V13.2 or later
IPA card firmware has been improved to support SSM (SSM) Single Source Multicast.
SSM devices use the multicast address in the 232.x.x..x address range
SSM support and IGMPv3 support is enabled in EHX
May 26, 2023 using EHX and IPA firmware V13.0 or earlier
Like most audio only devices the E-IPA card supports (ASM) Any Source Multicast. However most video devices like IP camera CCUs support (SSM) Single Source Multicast.
SSM devices use the multicast address in the 232.x.x..x address range
ASM devices use the 239.x.x.x by design ASM devices will not connect / join a 232.x multicast group
When connecting a Clear-Com matrix fitted with a IPA card (licensed for 3rd party ST2110 audio) to a IP camera CCU like GV or Sony
The most common problem you will often find is
The Sony or GV CCU can hear audio from the Matrix (IPA)
The matrix (IPA) cannot hear audio from the IP camera CCU
The problem you are facing is not un-common and is easily managed using either Static or DNS SSM mapping
To fix this problem you have 2 options
Option # 1 : As long as the IP camera CCU does NOT use the SSM multicast address of 232.x.x.x then they should be able to connect with IPA (bi directional audio) without special programming in the Ethernet switcher
Option #2 : Re-map SSM to ASM multicast inside the Ethernet Switch
Using special configuration within the Ethernet Switch to map the SSM address to a ASM address.
The SDP of IP camera CCU should be copied into the RX port stream settings for the IPA card. OR modify a SDP file to suit the IP address and multicast settings of the IP camera CCU
Sony HDCU-3000 series support ASM mode.
If you input 0.0.0.0 in the Source IP Address on CCU menu, CCU works as ASM.
Example we found using Cisco Nexus 9K switch
The SSM 232.x.x.x stream from SONY CCU requires SSM mapping.
The ASM 239.x.x.x stream from SONY doesn’t need SSM mapping:
Example we found using Huawei Switches CE8850 and CE6865:
The SSM mapping for the SONY 239.x.x.x intercom stream is required
see Matrix: Does the E-IPA card support SSM (Source Specific Multicast)
Cisco SSM mapping commands
IOS – under section configuring SSM (SSM MAPPING)
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9200/software/release/16-10/configuration_guide/ip_mcast_rtng/b_1610_ip_mcast_rtng_9200_cg/configuring_ssm.html#ID668
NXOS – shows up under configuring IGMP ( SSM TRANSLATION)
Arista switches : SSM general advise
If you have ASM working, the SSM should just work.
The only thing to watch out for is to avoid using the 232.0.0.0/8 address range. For this range (default), any ASM joins will be dropped (standards based behaviour).
You can either avoid this range (most people use the private multicast range 239.0.0.0/8, or you can adjust this range away from 232.0.0.0/8
Switch1(config)#ip pim ssm range ?
WORD Standard access-list name
standard Sets the SSM range to 232/8
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