How to I get multicast to work on an HP A5500 Switch?

zubar75
zubar75 used Ask the Experts™
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How to I get multicast to work on an HP A5500 Switch?

I am trying to get my phones and PBX to autoprovision which requires multicast

I have the switch setup with the LAN (1) and a VLAN (50) and it is configured for auto-vlan from port 1-44
Port 45-48 are configured as VLAN50 port based

The phones, pbx and switch will all work together, but for autoprovision to function the multicast has to work  (broadcast network 224.0.1.75)

On the Hp Switch I have enabled IGMP Snooping or both LAN1 and VLAN50 which I understand is suppose to allow the broadcast.

Any suggestions on how I can get mulitcast to work?
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Distinguished Expert 2018

Commented:
Generally, if you enabled IGMP snooping globally and per VLAN that should be enough for switch itself (may be design specific). Broadcast and multicast may have the same behavior in some scenarios, but are not the same. If multicast is configured on router that should be enough.

You can fin configuration  step examples in HP article - HP A5500 EI & A5500 SI Switch Series

I am not sure that multicast is required for auto-provision, it is typically done via DHCP server (and configuring proper DHCP options (TFTP, HTTP and HTTPS)).
Multicast is typically used for music on hold and some other functions.
zubar75IT Manager / Owner Operator

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Commented:
upgraded the firmware on the switch,  and now multicast is working as expected.  I am surprised, this switch seems a bit flaky for enterprise grade
IT Manager / Owner Operator
Commented:
upgraded the firmware on the switch,  and now multicast is working as expected.  I am surprised, this switch seems a bit flaky for enterprise grade

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