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Solved
Switch drop PTP multicast
Hi , I try to configure a m4300 8x8f switch with three connected devices, a PTP source and two PTP receiver. But i have a problem, the switch seems to drop every ptp multicast packet. I have acti...
Problem fixed, IGMP on master clock was is in version 2 but IGMP on netgear switch was is in version 3. Downgrade to version 2 and all works fine.
Thanks for the quick reply, I've email the support (to your attention) with the appropriate files.
Hi KrustyK,
Got the tech-support file from you. Thanks again!
Looks like the configuration is correct!
Could you please run CLI command on the switch as below:
1. show ip mroute summary
2. show ip igmp groups x/x/x(the PTP receiver port number)
3. show interface counters(do 'clear counters all' first)
BTW: I try on local switch, it's success. DUT can forward the multicast packet success.
(M4300) #show ip mroute summary
Multicast route table summary
Incoming Outgoing
Source IP Group IP Protocol Interface Interface List
--------------- --------------- ---------- --------- ---------------
192.168.2.1 239.1.1.1 PIMDM 1/5/1 1/11/1 1/11/2
(M4300) #show ip igmp groups 1/11/1
IP Address..................................... 192.168.4.2
Subnet Mask.................................... 255.255.255.0
Interface Mode................................. Enabled
Querier Status................................. Querier
Multicast Group IP............................. 239.1.1.1
(M4300) #show ip igmp groups 1/11/2
IP Address..................................... 192.168.5.2
Subnet Mask.................................... 255.255.255.0
Interface Mode................................. Enabled
Querier Status................................. Querier
Multicast Group IP............................. 239.1.1.1
(M4300) #
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