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Forum Discussion
Solved
GS110T/GS110TP Multicast overload bug
Hi, I have the following switches on a network, and they all suffer from this issue:
2x GS110T (v5.4.0.6 - latest?)
2x GS110TP (v5.4.2.30 - latest?)
1x GS110TP (v5.0.5.4)
1x GS110TP (v5.4...
Hi DaneA,
Sorry for the delay, I had been trying to make sure that everything was stable with the updated firmwares before updating.
As you say they were able to provide an updated firmware, that appears to be working fine for the GS110TP models.
for the GS110T switches I was given a work around from Engineering, which I will post below for anyone else who has this problem:
"The root cause is, the reserved range multicast packets comes to switch CPU and the IGMP application fowards them to other ports in same VLAN. Since, the packets are coming at high rate, CPU is becoming slow and failing to open GUI connection.
On GS110T, you can try installing an ACL and drop the multicast packets in the range 224.0.0.1 to 224.0.0.255. If you need these packets, then configure ACL with redirect action (redirect the matched packets to desired port)."Cheers
James
Hi DaneA,
Sorry for the Delay in getting back to you.
I have done a much longer capture for you.
http://jasmine.19inch.net/~james/wireshark/Wireshark-GS110TP-issues-long3-unfiltered.pcapng
This setup comprised of 4 switches:
1x GS728TS
with 2 x GS110TP linked over SFP and a 3rd GS110TP linked over CAT5e from one of the previous GS110TP's
All switches are reconfigured with the latest firmware loaded.
I have background pings running to all 3 GS110TP's (192.168.99.200, 192.168.99.210 and 192.168.99.220)
The monitoring software is already running at the start, and continues until roughly 140 seconds, at which point I stop the monitoring, and wait until 202 seconds before starting it again.
I have been trying to load the web interface of the switches from the start, but do not get very much from them until after I have stopped the monitoring. I log into all 3 and load the switching ->ports tab ok on all 3. After I restart the monitoring I attempts to navigate to other tabs on all 3, and have very little success.
Is there any other information that I can provide for you?
Thanks for the update. Since its still the same problem, as per advised of the higher tier of NETGEAR Support, kindly open a chat or online case with NETGEAR Support at anytime. State your concern and attach the packet captures to the chat/online case. Indicate the link of this forum thread as well. This will be escalated to the engineering team for further investigation.
Regards,
DaneA
NETGEAR Community Team
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