About JohnD2

JohnD2 · 12-22-2021

I've gone through the posts made here and can't seem to find anything quite like our issue. We've been noticing network slow downs, and seeing messages in the logs of our core switch (C9300 stack) looking like this: Dec 22 17:22:24.775: %SW_MATM-4-MA...

JohnD2 · 12-23-2020

We currently have 2 brand new switches in a stack. The master switch works great, but the standby switch is slow and particular devices like IP phones connected to it are nearly unusable. The phones lose connection to the server and freeze up. If the...

JohnD2 · 12-22-2021

I appreciate the response. I would agree that normally this behavior would make sense. But in this case that doesn't make sense. In the core switch the mac addresses are coming from interface Po1 (the access switch which makes sense) and also from in...

JohnD2 · 12-28-2020

I disabled the auto smartport and it works now. I'll take some time to do more testing, but I think I'm finally making some progress. Thank you!

JohnD2 · 12-28-2020

Sorry for the slow response. It does appear that smartport is on. This is a port with an IP phone plugged in, and it looks like smartport has recognized it as such.

Member Since	‎07-13-2018 09:25 AM
Date Last Visited	‎01-14-2022 12:02 AM
Posts	5

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Mac Flapping

SG350X-24MP Stack, Standby slow

Re: Mac Flapping

Re: SG350X-24MP Stack, Standby slow

Re: SG350X-24MP Stack, Standby slow