10-05-2015 09:20 AM - edited 03-01-2019 12:23 PM
Hi,
I recently had a strange issue come up. We recently added some b200-m4 blades and put ESX on them. We also have some M3 blades in the same ESX cluster as we are migrating off. We needed to add a new vLAN to these blades, which is common. I went through each nic (not currently attached to a template) and added the vLAN. The older M3 blades took the change in stride without any other action. However, when I added the vLAN to the new M4 blades it prompted for User-Acknowledge of a reboot to apply the change.
My question is, what would cause a vLAN add on a vNIC to require a reboot? I'm not sure I have ever been prompted to do so for that type of change. I certainly don't want to have to reboot each time this happens as it would get old fast.
Thank you in advance!
10-05-2015 10:26 AM
adding / removing a vlan should not require a reboot !
10-10-2019 02:27 AM - edited 10-10-2019 02:29 AM
Hello Mr. Walter,
What about enabling the cdp or lldp on the vNic template "by changing the applied Network control policy"? does that require a reboot for the host or any kind of service interruption? Am currently using UCSM 3.1(3b)
Thank you
10-10-2019 03:31 AM - edited 10-10-2019 03:31 AM
Changes on the network control policy generally do not require a reboot/re-ack to apply.
That's not to say that there may not be other upstream impacts such as in a scenario where connected to an ACI environment with a dVS that is heavily dependent on CDP/LLDP information.
Kirk...
10-14-2019 06:41 AM
10-05-2015 12:42 PM
Hi Mark,
Walter is correct about the VLANs not requiring a reboot.
I have seen cases like this where there was some other pending change on the servers that did require a reboot to take affect. With those pending changes already queued up, any change to the service profile could prompt you for a reboot even if those changes are not production impacting.
10-06-2015 09:49 AM
See this other thread on how to detect why the server is asking for a reboot:
https://supportforums.cisco.com/discussion/12603011/modifying-vnic-template-adding-new-vlan-400
This usually happens when there is something else requiring an update which is achieved by a reboot and is still pending somehow.
-Kenny
02-24-2022 05:34 PM
Hello,
If I modify the mtu or fabric ID on vnic template (or any changues on my nic template) could request a reboot of blade server?
Regards
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide