02-16-2015 08:02 AM - edited 03-07-2019 10:41 PM
Hello,
My Solarwinds product is showing a high volume of transmit discards on several interfaces of my Cisco 3750E switch. Can anyone give me a suggestion on what could be causing this and how to resolve it?
My Switch info:
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(55)SE5, RELEASE SOFTWARE (fc1)
License Level: ipservices
License Type: Permanent
Next reload license Level: ipservices
cisco WS-C3750X-48 (PowerPC405) processor (revision A0) with 262144K bytes of memory.
Last reset from power-on
7 Virtual Ethernet interfaces
1 FastEthernet interface
104 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
512K bytes of flash-simulated non-volatile configuration memory.
Motherboard assembly number : 73-12552-10
Model revision number : A0
Motherboard revision number : C0
Model number : WS-C3750X-48T-S
Daughterboard assembly number : 800-32727-03
Top Assembly Part Number : 800-31326-08
Top Assembly Revision Number : D0
Version ID : V05
Hardware Board Revision Number : 0x05
Switch Ports Model SW Version SW Image
* 1 54 WS-C3750X-48 12.2(55)SE5 C3750E-UNIVERSALK9-M
2 54 WS-C3750X-48 12.2(55)SE5 C3750E-UNIVERSALK9-M
Solarwinds is showing:
High Errors & Discards | Today | ||||
NODE | INTERFACE | RECEIVE ERRORS | RECEIVE DISCARDS | TRANSMIT ERRORS | TRANSMIT DISCARDS |
CoreStack-1 | Port-channel40 - Po40 | 0 errors | 0 discards | 0 errors | 4,583,772 discards |
CoreStack-1 | GigabitEthernet2/0/14 · | 0 errors | 0 discards | 0 errors | 3,536,946 discards |
CoreStack-1 | GigabitEthernet2/0/16 · | 0 errors | 0 discards | 0 errors | 1,046,826 discards |
CoreStack-1 | GigabitEthernet1/0/11 · | 0 errors | 0 discards | 0 errors | 679,027 discards |
CoreStack-1 | Port-channel1 - Po1 | 0 errors | 0 discards | 0 errors | 679,027 discards |
CoreStack-1 | Port-channel30 - Po30 | 0 errors | 0 discards | 0 errors | 5,407 discards |
CoreStack-1 | GigabitEthernet2/0/1 · | 0 errors | 0 discards | 0 errors | 4,658 discards |
Thank you.
02-16-2015 09:38 AM
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Generally bursty traffic will cause it on any 2960/3560/3750 especially if QoS is enabled.
Buffer tuning, when QoS is enabled, can sometimes mitigate or eliminate.
On the 3560/3750 series, buffers are shared between 24 copper ports and for the uplink ports, so moving busy ports about might mitigate or eliminate drops too.
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