Switching

I can see command there is a command to check the voltage, power, temperature for sfp connection "show interfaces transceiver detail". Does the values meant  for transceiver or fiber cabling regarding the temp, voltage & power values? Is there any si...

Hi can anyone help with MACSEC 256 encryption settings on a 9300 switch Thanks

Hey All, Wanted to see if anyone could help me. I was given a pair of Cisco Nexus 3172PQ switches for my lab. The only issue is I am not familiar with NXOS. I have some experience with IOS but none with NXOS so I am having a hard time with the config...

Hi all,I am trying to enable FIPS mode for my Cisco C9300 switch that is currently running on 17.9.x. I happened to come across and follow the official documentation from Cisco. However, it asks for an authorization key with a specific length. May I ...

when i tried to copy running-config tftp: 216.20.30.242 to all routers it comes up with "Error opening tftp://   ... (timeout)" for all routersas there are some problems with my VLSM & each router needed to have 10 static routes in it, which I haven'...

Hello,I have a Cisco C1000-48T-4G-L deployed and what I notice is that the fan speeds ramp up and down as though the switch. I would expect that under "normal" operation, the fan rpms would be steady and consistent. I have been reading only and the b...

hi I can`t configure DHCP here from firewall to DMZ and DHCP the ping comes through and the same from Layer3 Switch1 to Firewall and DMZ but can`t from Layer3 to DHCP 

Hi, I have a 4500X-16 VSS setup running IOS version 03.08.00E.I'm using LACP to bundle interfaces, and each port channel consists of two interfaces—one from Switch 1 and one from Switch 2.The issue is observed only on Switch 2, where the interfaces a...

Hi,I have two core cisco 9K's. both are in different building as part of disaster recovery. but the fibre connectivity between them is just only a trunk interface and doesn't have a VPC for high availability. So is it ok to move the existing trunk li...

For eg, If I have 3 data vlans, Vlan 10,20,30 All are data vlans. All the vlans are enabled intervlan routing in the core switch.If I have an access switch, the end devices are connected to this switch all the end devices (PCs) are in vlan 20. So in ...

I had a issue when one of our access switches got dead and it replaced with another one  connected to another switch, earlier it was working fine. The moment I connected  the replacement switch, the entire neighboring switches and others started flap...