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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
I inquired about your case from NETGEAR Support and found out that it is already set to close status. A firmware (beta) for the GS110TP switch was provided to you by the Level 3 expert and this seemed to fix the issue. However, the beta firmware is not compatible with the GS110T switch and there will be no fix for it since it is already EOL (End-of-Life).
Feel free to post your future concerns here in NETGEAR Community. :) I encourage you to mark the appropriate reply as the “Accepted Solution” so others can be confident in benefiting from the solution. The NETGEAR Community will look forward to hearing from you and being a helpful resource in the future!
Cheers,
DaneA
NETGEAR Community Team
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
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