Switching

I've had two different 2960X switches fail when upgrading the IOS to this version of code, while I have 50+ that completed successfully.Checksum was verified, so it's not a corrupt image. When I copied the image to these switches and reloaded, all of...

Hey all, Curious if someone could shed some light on this.  In the Catalyst 9400 Supervisor module datasheet it lists the valid configurations for single and dual Supervisor modules and the ports supported on a SUP-1XL-Y.https://www.cisco.com/c/en/us...

i have 2 routers connected as point to point, A<->B. from A i can ping to B loopback ip address and vice versa. But i can't telnet from A to B using B loopback ip address, but i can telnet to B using B interface ip addresss which is connected to A.

Hello,  I was trying to configure some etherchannels on a C9606 chassis and was able to configure 16 of them. All 16 were given numbers between 1-116 (ex., port-channel 116). When I tried to configure a port-channel and assign it a number over 126, t...

Hi,I am trying identify a port that has a particular IP attached to it. I am using 5 x Cisco c3750X in a stack. The device responds to Ping, but I am unable to identify it via HTTP, Telnet etc... A sh arp command returns... Internet 10.1.1.241   0   ...

Does anyone know how we can get alerts sent to SNOW or to an email address should there be a fault detected ?

Hello,I just received a new Cisco WS-C2960L-SM-16PS switch with version 15.2 (7) E0a.I connected to the switch via the console cable, I entered the connection identifiers to enable, then I entered the command "conf t" and an error message appeared: S...

Hi guys, After reading this -> https://community.cisco.com/t5/small-business-switches/upgrading-bootloader-on-catalyst-switches/m-p/3672626#M20119 it is still unclear how to downgrade the bootloader of one of my switches. is there a way to downgrade ...

Hello Folks , We have an L2 trunk between cisco 3560 and cisco 4500. we have 7 ports bundled in that channel.we have both sides flow control disabled in/outreal traffic can reach to 5.5 G, but we still see output Drops only on 3560.At 4500 we don't s...

Hi all,I try to achive following:I want to assign a interface-template to all my access-port (which fit nearly all my requirements. this works fine:ACCESS-SWITCH-IBNS20#sh running-config interface gigabitEthernet 1/0/1!interface GigabitEthernet1/0/1d...

HiI got doubts in selecting the right fiber cable for the SFP's. I do have QSFP-40Gb-SR-BD SFP's to uplink my core switches what is the Fiber cable model I need to select from the CCW ?Also on the SFP-10/25G-CSR-S SFP which  Fiber cable I should sele...