04-27-2021 07:32 AM
If you need to configure Jumbo framing to ports that are assigned to L2 port-channels on a Cisco Nexus 5k, should you configure it on the actual port-channel or the actual physical interface? Will making this change cause any disruption?
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04-27-2021 08:06 AM
On the 5ks, configuring the Jumbo frame is a global policy which means it applies it to all physical interfaces. See link:
HTH
04-28-2021 08:17 AM
Thing is, when I look at show running=config all is shows 1500 MTU under the port-channels and applicable interfaces.
If you want to see the correct jumbo frame size, try this command:
sh queu interface x/x
or
sh queu interface x/x det
you should be able to see mtu 9216
Good Luck!
HTH
04-29-2021 05:45 AM
Not sure if the Portchannel will show the cumulative numbers but I think as long as you see them on individual interfaces, you should be good to go.
HTH
04-27-2021 07:46 AM
You need to configure the interface level is suggested, yes it will be a small convergency time to negotiate.
04-27-2021 09:36 AM
I dont have any options for "mtu" or anything like that on the interface. Any ideas?
04-27-2021 09:45 AM
I was provided 7K information, 5k it was global config :
04-27-2021 08:06 AM
On the 5ks, configuring the Jumbo frame is a global policy which means it applies it to all physical interfaces. See link:
HTH
04-27-2021 09:51 AM - edited 04-27-2021 09:54 AM
Yes I caught that. I got this in the running config so I belive it is already enabled?? Thing is, when I look at show running=config all is shows 1500 MTU under the port-channels and applicable interfaces.
olicy-map type network-qos jumbo
class type network-qos class-default
mtu 9216
multi-cast optimize
systesm qos
service-policy type network-qos jumbo
04-28-2021 08:13 AM
Thanks again Reza. See my previous reply?
04-28-2021 08:17 AM
Thing is, when I look at show running=config all is shows 1500 MTU under the port-channels and applicable interfaces.
If you want to see the correct jumbo frame size, try this command:
sh queu interface x/x
or
sh queu interface x/x det
you should be able to see mtu 9216
Good Luck!
HTH
04-29-2021 04:49 AM
Yes sir thanks again.
04-29-2021 04:59 AM
One one of the applicable port-channels for this interface, I don't see much jumbo packets however I see many packets on the associated interfaces. Should I not see the cumulative number of packets on the port-channels for these interfaces?
04-29-2021 05:45 AM
Not sure if the Portchannel will show the cumulative numbers but I think as long as you see them on individual interfaces, you should be good to go.
HTH
04-29-2021 05:50 AM
Ok thanks
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