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Solved
Network Loops causing our devices to freeze
We’re experiencing a lot of NetGear Prosafe switches freezing, and we’re forced to do a reboot on all switches twice a week as we cannot trace where the issue is coming from. We are looking on a possible loop issue, and while this is a fact, finding the loop itself is quite a feat, that’s why we are trying to find a way on viewing the CPU and Memory utilization and verify which switch we should focus on.
|
Hardware |
Software |
|
FS728TPv2 |
5.0.2.39 |
|
GS728TP |
6.0.1.18 |
|
GS724TP |
5.2.0.11 |
|
GS724Tv3 |
5.4.2.10 |
|
GS748Tv4H1 |
5.4.2.30 |
|
FS726TP |
V2.0.1_14 |
|
GS748Tv4H1 |
5.4.1.17 |
|
GS748Tv4H1 |
5.4.1.17 |
|
GS748Tv5 |
6.3.1.19 |
We’ve tried using an open-source 3rd party monitoring tool as well as NetGear Network Manager (NMS300 version 1.6.0.11) on the latest NMS version, unfortunately it still wasn’t able to show the CPU and Memory utilization we are looking for. We also tried checking on the MIB files both on NMS300 and 3rd party monitoring tool and MIB files available on the downloads page on NetGar website, only generic MIB files are available for download which doesn’t include CPU and Memory Usage.
We are reaching out to you to assist us finding a way to view CPU and Memory Usage on the above given switches either via the switch admin portal or NMS, or if you know someone we can escalate this issue so we can get immediate assistance from NetGear.
8 Replies
STP or RSTP are your new friends.
Any devices or components on your network potentially playing "bad" - like wireless bridges, media players (e.g. SONOS), sophisticated storage and App server systems with software defined networking (like QNAP QTS)?
Hello schumaku,
Thanks for the response.
Just a quick follow thru questions below.
1. Do you consider satellite dishes as wireless bridge?
2. Will it have any service impact if you enable STP / RSTP on the network immediately? The switches are connected more like star topology.
3. Any way we can setup CPU and memory usage for the devices stated on my initial post?
Palladium wrote:
1. Do you consider satellite dishes as wireless bridge?
Anything that can cause a potential loop - especially when there is some redundancy in the play.
Palladium wrote:
2. Will it have any service impact if you enable STP / RSTP on the network immediately? The switches are connected more like star topology.
If available all over go for RSTP. You will find that only one part of your star architecture be forced disconnectred worst case - instead of knowcking the complete system down. This should allow some localized troubleshooting later on.
Palladium wrote:
3. Any way we can setup CPU and memory usage for the devices stated on my initial post?
The moment when CPU and/or memory usage would explode (if it does at all - it's more likely traffic on links, typically broadcast ...) will be the moment you loose the in-band management access to the switches anyway. Not sure why you are so keen for it.
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