Switching

Hi Below is process for client such as PC to access a server via ssh. Please see the below "Session Encryption Negotiation" process when a client try to access a server via ssh. Usually we pick up a PC to access the switch via ssh/putty. we do not im...

Hello Engineers, I've just realized that end device which has wrong gateway (not in subnet mask range) is ABLE to communicate with other device. For instance,   - Core SW(L3) interface VLAN IP:       10.10.15.1/23       10.10.20.1/24   - PC A : 10.10...

I'm having a quandary with temperatures on switches.  The data sheet for these devices state that the max operating temp is 45-55C.  Yet, I get an output like this:   OR227-XW1>sho env tempSwitch 1: SYSTEM TEMPERATURE is OKInlet Temperature Value: 46...

This is my first time really rolling out 10 gig Cisco switches. at the time I have this switch connected to a 10gig uplink from my Mikrotik. I did. "show interface te1/1/1" and got this result. I was always told that my CRCs should be 0. and they ref...

Hi there, I have three Cisco CBS250-24pp-4G switches I just changed their Admin password and after that I can't login anymore, I have double check which password I wrote but I lost control on all of them. Is there an issue with the firmware? Do you h...

Hello all, I have cisco catalyst 3750G series switch and I updated that switch ios version 12.25.SE5 to 12.55.SE12. After I changed the image boot file and reload the switch but the switch can't boot. Then I unplug the switch and plug again then I ca...

Hello guys,I have some SG550-24P as well as SG350-10p switches. I understand the concept behind Automatic Voice VLAN, and OUI settings etc. When switch is placing voice traffic onto specific VLAN based on LLDP / CDP / OUI. Here is where I'm a bit con...

I didn’t set up the console password when I set the switch up and added all the changes that it needed to be up to par. Now that I’m almost done with the c1000 24p I realized that it does not ask for a console password. I can type in “enable” and get...

Hello, Do I need to renew the essential DNA licenses on the 9300 switches I have in my network?   DNA licenses expire in 10 days.   What is the impact for my customers if the licenses are not renewed? Switches are routing, QoS, and Tier 2. Thank you ...

I have a printer, when I had ISE monitoring Configuration on the switchport and looking for access-session I had a message "NO sessions match supplied criteria." I had the same printer on the different switch port shows the access-session.  Switch - ...