02-23-2016 03:46 PM
Does anyone knows the SNMP OID to read and write the speed and duplexMode values on a Cisco 3850? The Cisco 3850 is running IOS 3.7.2E. I was able to perform those actions on a Cisco 3750 using 1.3.6.1.4.1.9.5.1.4.1.1.9 and 1.3.6.1.4.1.9.5.1.4.1.1.10 but apparently the Cisco 3850 does not recognize them.
Thanks.
02-24-2016 03:22 AM
Hi,
please have a look at the linked discussion an try the dot3StatsDuplexStatus object (according to the c3850 Datasheet, EtherLike-MIB is supported):
https://supportforums.cisco.com/discussion/11848411/snmp-walk-issue-lms
HTH
Rolf
02-24-2016 07:15 AM
Hi Rolf,
Thank you for the prompt response. I read the description for the OID but it is a read-only value. I need to actually change the duplex value. I also looking for the OID to change the speed value too.
02-27-2017 10:53 AM
did you happen to figure out which OID? having
09-14-2017 07:41 AM
I have exactly the same problem.
Did you find the right OID?
01-16-2018 08:33 AM - edited 01-16-2018 08:42 AM
Change switch to auto-auto (sets auto negotiate to integer 1 which is enabled)
snmpset -v 2c -c {your community string here} {your ip here} 1.3.6.1.2.1.26.5.1.1.1.9.1 i 1
Change switch to 100-full (set ifindex 9 (my case Gi1/0/2) to 100-full and then disable auto negotiate interger 2 = disabled)
snmpset -v 2c -c {your community string here} {your ip here} 1.3.6.1.2.1.26.2.1.1.11.9.1 o SNMPv2-SMI::mib-2.26.4.16
snmpset -v 2c -c {your community string here} {your ip here} 1.3.6.1.2.1.26.5.1.1.1.9.1 i 2
01-16-2018 08:41 AM
FYI there is a bug in 3.6.6 (maybe other versions as well) that resets the snmp value after a reload. for example, change running config to 100-full then do snmpget. It will come back with correct values. Then reload the switch and try the snmpget again. This time it'll come back as auto-auto even though port is specifically configured for 100-full.
I worked with TAC on this issue back in Nov 2017. Here are the 2 bugs that were created.
CSCvg62818
CSCvg58488
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