04-05-2020 07:56 PM
SG200-50 fw: 1.4.9.4
I am currently monitoring the interface utilization of a certain server down to client PC.
The network connection looks like this.
Server ----- Server Sw ---- Core Sw ---- Distri Switch ---- Access Sw -- Client PC
Issue:
The Tx/Rx Utilization between each devices are almost the same except for the Server and Server Switch.
1. Server's Tx is around 5% while the Server Sw's Rx is 10x more than the other end's Tx.
2. Server's Rx is almost the same as Server Sw's Tx
3. This only occurs from 9pm until 12 mn.
4. Only Server Sw's port-36 connected to Server has Pause Frames Received (26) and Pause Frames Transmitted (5693663)
What I did so far:
1. Clear the counter of all interfaces
2. Set switch port-36 flow control to auto-negotiate
3. Set server NIC-1 flow control enable
But none of those worked.
I have been searching the internet for two weeks now and couldn't find the solution.
Please help me. Thank you.
Here's the graph for your reference.
04-19-2020 05:06 AM
Hello Ryan,
Check the server sw port duplex mode, speed:
Port Management > Port Settings
also check what is the state on server port;
- check the length of the UTP cable - should not exceed 100m
- try to swap the port with other free port and check if the behavior will be the same
- you can place also a small unmanaged gigabit switch (for example 5 port) between server and switch just to see if it will alleviate the symptom
Of course you can try also to upgrade the firmware (latest is 1.4.11.0):
https://software.cisco.com/download/home/283771828/type/282463182/release/1.4.11.04
Hope it helps
Regards,
Mike
04-29-2020 08:23 AM
Hi Mike,
Thanks for stopping by.
I already checked and perform the following:
Port settings: duplex
UTP cable : <50m
Swap port: yes
What I will do next is to try to upgrade its firmware to the latest version.
I was not considering this at first because among the SG200-50 switches that we have, only this one has this odd issue.
Hope this will work. Thanks again.
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