X435-24P-4S IGMP Query Issues

[Joe10]

So we are using s X435 with the AVB feature lic installed with our new AV system.  The system is using visionary duet2 encoders/decoders along with Crestron components.   I setup a AV VLAN with IGMP query and snooping, but  the video will not hold a signal according to AV install vendor, if only works if he supplies a IGMP query from his laptop.  I assigned VLAN IP to IP 192.168.1.1.  The ports not assigned to this AVB VLAN or using both our VOIP and Data VLANs. 

I am not sure what we are missing.  There solution is to add a router that can perform IGMP. But if I understand it right the switch should be doing this when the VLAN has an assigned IP.  I have provided the outputs from these commands <sh igmp vlan TAVB>, <sh vlan tavb>,  <sh port 2 info det>.

sh igmp vlan tavb
Query Interval : 125 sec
Max Response Time : 10 sec
Last Member Query : 1 sec
Robustness : 2

Interface on VLAN TAVB is enabled and up.
inet 192.168.1.1/24
Locally registered multicast addresses:
224.0.0.2 224.0.0.22
Learned multicast addresses(Last Querier=192.168.1.1):

s = static igmp member

Querier UpTime: 33 minutes 11 seconds

Flags:
IP Fwding NO IPmc Fwding NO IGMP YES
IGMP Ver V2 Snooping YES Proxy Query YES
XmitRtrAlrt YES RcvRtrAlrtReq NO

sh vlan TAVB
VLAN Interface with name TAVB created by user
Admin State: Enabled Tagging: 802.1Q Tag 100
Description: None
Virtual router: VR-Default
IP Anycast: Disabled
IPv4 Forwarding: Disabled
IPv4 MC Forwarding: Disabled
Primary IP: 192.168.1.1/24
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: None
Protocol: Match all unfiltered protocols
Loopback: Disabled
NetLogin: Disabled
QosProfile: None configured
Egress Rate Limit Designated Port: None configured
Flood Rate Limit QosProfile: None configured
Suppress ARP: Disabled
Suppress ND: Disabled
Proxy ARP: Entry required
Ports: 22. (Number of active ports=14)
Tag: *1, *2, 3, *4, *5, *6, *7,
8, 9, *10, *11, 12, *13, *14,
*15, 16, *17, 18, *19, *20, 21,
22

sh port 2 info det
Port: 2
Virtual-router: VR-Default
Type: UTP
Random Early drop: Unsupported
Admin state: Enabled with auto-speed sensing auto-duplex
Link State: Active, 1Gbps, full-duplex
Link Ups: 1 Last: Tue Aug 22 15:37:01 2023
Link Downs: 0 Last: --

VLAN cfg:
Name: Default, Internal Tag = 1, MAC-limit = No-limit, Virtual router: VR-Default
Name: TAVB, 802.1Q Tag = 100, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 100
STP cfg:
s0(enable), Tag=(none), Mode=802.1D, State=FORWARDING

Protocol:
Name: Default Protocol: ANY Match all protocols.
Trunking: Load sharing is not enabled.

EDP: Disabled

EEE: Disabled
ELSM: Disabled
Ethernet OAM: Disabled
MACsec: Disabled
Learning: Enabled
Link-Flap Detection: Disabled
Unicast Flooding: Enabled
Multicast Flooding: Enabled
Broadcast Flooding: Enabled
Jumbo: Enabled, MTU= 9216
Flow Control: Rx-Pause: Enabled Tx-Pause: Disabled
Priority Flow Control: Disabled
Reflective Relay: Disabled
Link up/down SNMP trap filter setting: Enabled
Egress Port Rate: No-limit
Broadcast Rate: No-limit
Multicast Rate: No-limit
Unknown Dest Mac Rate: No-limit
QoS Profile: None configured
Ingress Rate Shaping : Unsupported
Ingress IPTOS Examination: Disabled
Ingress 802.1p Examination: Enabled
Ingress 802.1p Inner Exam: Disabled
Ingress 802.1p Priority: 0
Egress IPTOS Replacement: Disabled
Egress 802.1p Replacement: Enabled on QP1 QP4 QP8
NetLogin: Disabled
NetLogin port mode: Port based VLANs
Smart redundancy: Enabled
Software redundant port: Disabled
IPFIX: Disabled
auto-polarity: Enabled
Shared packet buffer: default
VMAN CEP egress filtering: Disabled
Isolation: Off
PTP Configured: Disabled
Time-Stamping Mode: None

Dynamic VLAN Uplink: Disabled
VM Tracking Dynamic VLANs: Disabled

[FredrikB-NN2]

For VLAN tavb, I see that the switch is elected as querier. For simplicity, you can run this command:

show igmp vlan tavb | include Querier
Learned multicast addresses(Last Querier=x.x.x.x):
Querier UpTime: 6 days 4 hours 7 minutes 1 second

This will tell you if there is a querier for that VLAN or not. Then proceed to check the streams:

show igmp snooping vlan tavb
Router Timeout : 260 sec
Host Timeout : 260 sec
Igmp Snooping Fast Leave Time : 1000 ms

VLAN tavb (100) Snooping=Enabled
Group Sender Age
224.10.10.25 10.5.142.13 19
224.10.10.25 10.5.142.23 39
224.10.10.25 10.5.142.25 47

The last column is important here. It will count up to Query Interval : 125 sec + a max of Max Response Time : 10 sec, so between 125 and 135 seconds. If the counters carry on to more than 135, something is wrong (for "normal groups, don't mind the 239.255.255.x groups). This can also be seen in the other switches attached to the VLAN if any.

I do see some 224.0.0.251 (PTP timing) sessions that refresh after slightly longer than 135 sec, like 155 sec tops, but that seems normal. Your video and audio streams should definitely go back to 0 after reaching 125-135.

When the AV guy starts the querier on the computer, does the VLAN reported querier change? What version if IGMP do you use? This can be a major issue. Normally, IGMP v2 is the easiest to work with.

[Joe10]

Unfortunately nothing is talking at the moment so I did not get full results. I did work with Extreme yesterday and we enabled AVB and updated to the most current version of EXOS 31.x patch 98, and they verified the query is present which is what I thought. So now I am in a holding pattern until the AV vendor can be on site again and see if anything we did makes a difference. 

[K-phi]

Hi @Joe10,

Regarding the show port vlan, where are connected the AVB devices ?

Are you sure for vlan TAVB tagged on the ports ?

Regarding the igmp config part, please follow the links I shared you.

KR 

Kevin

[Joe10]

The connected devices are scattered across VLAN on ports 1-22, I believe it is a total of 10 Visionary Duet encoders/decoders.  

I did previously do the IGMP config stuff.  Reading through your AVB links was educational but raised a lot of questions and made me question how our other AV systems are handling this as none of the network specific components are dishing out a IGMP query signal but they are a more complicated AV setup, using a mix of  BIMAP, Kramer, Crestron and Extron components.  

From what I can tell we will probably end up adding a router to the VLAN that can supply an IGMP query signal.