Switching

Hi have a brand new 3750x 48P to connect in stack to a old 3750-48P. my problem is the sw version, which software version should I use to enable the stack? Switch   Ports  Model              SW Version              SW Image ------   -----  -----    ...

Hello, I would like to run a debug on a switch that is having PoE issues.   My question is:  when i run the debug, how come I don't see anything?  I don't see any debugs populating my screen.  Where do they all go?  I know for sure it works because ...

Cisco has RMA'd one of our VSS members because of a hardware problem.  The broken VSS member is still up and the pair is communicating, but as the passive member.  My question is, what is the correct procedure to replace the passive member of a VSS p...

Hi experts, I have a setup that I have a WAN interface connected to the outside, and a few sub-interfaces (on a different physical port) on the LAN side to some VLANs. I also NAT on traffic between LAN and WAN. In order to record the flow with the or...

Hi all I'm trying to set up some SPAN and RSPAN on two directly connected 2960-Xs and get a problem half way through. The relevant config is Remote SPAN VLANs------------------------------------------------------------------------------999 Switch ...

I want to upgrade the IOS. What is the proper procedure? I have 2 6880-X switches in a VSS config, plus 14 6800IA switches. Thanks

Hello,  I want to know the difference between forwarding rate bandwidth, forwarding performance and forwarding rate for example WS-C3650-24TS-S Performance Switching capacity : 88 Gbps Forwarding performance : 65.47 Mpps

My client has a special issue with that Catalyst 3850 do not starting as a fast as the old 3750-X. I know that is a new IOS XE architecture on 3850 but it spent about 5 minutes to be fully operational.

I am trying to evaluate whether to use PTP in unicast mode or in mixed unicast/multicast mode. the advantage of using the multicast mode is to reduce the load on the master for sync and announce messages. does anyone has experience using the mixed mo...

I have legacy equipment using a BNC as an Ethernet connector. In the past we used AUI to BNC adaptors but nowadays they're hard to come by especially in the DC version. I was thinking of using RJ-45 to BNC adaptors but the ones that are cheap are mad...

A partner has established a point of presence adjacent to my network. I do not have local access to their router. I have a transport only network in my CAN that interconnects the 40+ buildings that I support locally. I need to connect their router to...

I have a 1921, trying to setup port g0/1 as a trunk port to access our two vlans.  Devices will have been tagged with clan id of 10.  I assume that I am fundamentally missing something, because I can not set switchport mode trunk on g0/1. Current co...

Hello everybody, can someone please explain the background of the sampling rate for netflow-lite on 2960X ? As far as I know you can adjust the sampling rate from 1:32 to 1:1022. So far I got it! But what is the purpose to raise the sampling rate ...