11-12-2012 06:03 AM - edited 03-07-2019 09:59 AM
Hello Folks,
We have a production 4500 with redundant sups (IVs). This has been in production for quite sometime (5 plus years).
When I create a VLAN in global, it hangs for like 5 seconds and then my CLI comes back up. I don't see any memory issues. VTP is transparent. It isn't service affecting. I'm just curious if this is cause for concern? I get quite nervous everytime I have to create a VLAN. Is this normal or acceptable behavior? Has anybody seen this?
Thanks to anybody that can shine some light or alleviate concern.
11-12-2012 06:42 AM
I see this on 3750's all the time. Scares me too!
11-12-2012 06:59 AM
I've seen it on 3750s. I don't think it's a cause for concern. What I believe is happening, and this is just a guess, is that when you add the vlan and you have trunks, by default all vlans are allowed over the trunk. If you have several interconnects, it's possible that it's modifying all of those to allow the vlan over the trunks...this is purely a guess...
HTH,
John
11-12-2012 07:28 AM
John,
Interesting perspective. Still quite anxiety producing!
11-12-2012 07:49 AM
Anybody else have any further insight?
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