10-01-2018 11:00 AM
I feel I have configured this correctly but the interfaces are still showing 1500 MTU. First off, I know that the switch has a default system MTU of 9216. I did set that manually at first, but realized it wasn't necessary so I removed the configuration. I configured the following policy map:
policy-map type network-qos PM-JUMBO
class type network-qos class-default
mtu 9216
service qos
service-policy type network-qos PM-JUMBO
I then see the system inform that this policy is now active. But checking the interface I still see it at 1500. If I manually set the MTU to 9216 it does reflect the change.
Not sure where I could be going wrong with this. It would appear that I have to set this manually for all ports which doesn't seem right to me.
Also, I would like the same to be configured for the FEX I have hanging off of these 9Ks but I can't seem to find a global config option for this.
Thanks.
10-01-2018 12:50 PM
10-01-2018 12:58 PM
10-01-2018 01:07 PM
10-01-2018 01:11 PM
10-03-2018 06:41 AM
11-08-2019 03:22 PM - edited 11-10-2019 10:35 AM
Just came across this myself. The explanation is likely specific to the 93180YC-EX line, as this switch is essentially a rebranded Nexus 5672 which itself is really a Nexus 6k
Jumbo Frames on Nexus 93180YC-EX, 5672UP, and perhaps others
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