Switching

Hello, I'm planning an upgrade and need to know if it can be done without downtime. We have 2 4500's in a VSS running 03.07.01.E and wanting to go to 3.11.1.  Can someone tell me the procedure and if I need to follow a certain path.  thanks 

We have used a Switch Cisco 4507 with 2 Supervisor card. We found a log that sup failover on below. could someone advise what has caused the failover to happen?  Jun 7 16:46:52.887 UTC: %C4K_REDUNDANCY-4-KEEPALIVE_WARNING: STANDBY:Keepalive messages ...

Hello! I'm trying to setup 2 simple VLANS with this 3750 switch to try to gain some more knowledge of VLANS. I'm not really a Cisco or Networking Expert, so I'm sorry if explanation or configuration isn't correct... So I have a PfSense running as Rou...

I purchased a 3750x 48port POE switch with the hopes of setting it up to run multiple security POE cameras, a home media server, and a home assistant server.   I also recently got gifted a 2811 router that I wanted to integrate.  I have not been real...

normally a switch has line vty 0 4 and line vty 5 15. Is there a way to collapse that and just have line vty 0 15?  I have tried with no luck, but not sure if there is something special that needs to be done

Greetings,We have a request from our customer to upgrade their 6500 series switches connected in ring topology.I am proposing for 9400/9600 but want to use sfp-10G-LR/ZR - S.Is it ok as it does not support FCoE?Is FCoE required on catalyst switches?C...

Hello, Is it possible to filter or block multicast packets from going to a destination on a monitor session?  If I have the following session on a Catalyst 9200 switch: monitor session 1 source interface Gi1/0/2monitor session 1 destination interface...

Hi All,I would like to know the SSH version 2 key length on my 2821 router like 768, 1024 or 2048. Is there a show command or other command to do the job? I tried "show ssh" and "show ip ssh" but won't help.Any input will be appreciated.

I purchased a Cisco SG350-24p PoE switch today. There is a strange problem, if I populate 23 ports then switch keeps working fine but as soon as I populate the last port, it restarts automatically. The populated sequence doesn't matter, which means i...

I have a Nexus switch 5548, current version is 5.2(1)N1(1). What will be the best upgrade path from 5.2(1)N1(1) to 7.3(7)N1(1b)?

Добрый день!!У меня есть CIsco ws-c3750x-12s-s, включенный в стек, все c3750x, однако один стал странно вести себя! он начал циклически перегружаться. менялись изображения в разных версиях, но проблема никуда не делась. вот изображения, которые я исп...

Anyone have any idea what the "TestQoS" function does on a Supervisor 720 card for a 6509? It says it's a minor error if it fails. We don't use QoS on the 6509, and I see the risk/reward ratio tipped more in the risk favor of replacing this SUP card ...