Switching

The sg-350 switch continually prompts to save whenever logging into the GUI interface and also when logging out of the command line interface even though no changes were made. Why is this? How do I fix it?

I am running into an issue with getting NEW Cisco 7841 phones to register with Call Manager. Investigation shows the phones are not recognizing the voice VLAN.Here is a config snippet that has worked with 250 7900 series phones for 8 years:interface ...

Hi all, I work for a CCTV company and we recently took over a site which has 5 SG300-28PP cisco switches. The site has been having a lot of power issues and I'd like some help understand what might have occurred from these logs. We had an incident of...

Sorry, I posted this elsewhere in the forum without reply so I thought I would try in Switching. I'm sure one of you experts could help please.Dear All,I am a novice network person who needs a little advice pleaseAt home I have a SG110-16HP 16 Port G...

Hi support community, we have a very strange phenomenon in our company campus network and we don't know how to deal with it.Maybe you have any idea? Our campus network consists of 3 core switches (2 C6880-X-LE in a VSS network) and several access swi...

Hi everyone,I've been trying to enable PVLAN on a Nexus 1Kv (5.2x) vethernet port-profile which is already configured as trunk, so I need this port to become "promiscuous trunk".Every config guide and post I found mentions that that prom. trunk is av...

Hi Guys,When I plug in my switch the system LED is blinking green and all the ports led lit up for a few seconds then the ports led goes off, and a few seconds after the system LED is off.  The switch seems like its shutdown after.  Any ideas why thi...

Hello all,I hope everyone is keeping well.We are looking at the Catalyst 9600 as Server farm switch, but was wondering if there any new models are to be announced? The reason for the query is we have around 160 ports in use (dual homed), and we would...

Hello All,We are currently looking to migrate 160+ servers from an EOL stacked switch, and looking at the following options:Catalyst 9600 with 25Gb line cardsNexus 9500 with 25Gb line cardsIf we deployed the Catalyst 9600 this could be managed by Cis...

Terminology Used:  Switch - a physical unit;Stack - a logical unit made up of multiple switches NOTE: This bug only affects Catalyst 9300 in a stack (>14 weeks uptime).This bug DOES NOT affect stand-alone Catalyst 9300 switch.This bug DOES NOT affect...

Hi All,I am seeing a lot of OSPF "Dead timer expired" and OSPF adjacency drop off for for R1 (see below).Physical topology.R1 (Cisco 7206) --> R2 (Cisco 7606)R1 = 203.17.101.xR2 = DR = 203.17.101.AIs there a way to narrow down what is causing this? M...