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, I'd like to know if it's possible to connect a fiber optic cable into the 3550 series L3 switch? I'm assuming via SFP? Thanks in advance
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, anyone know if Cisco Business 250 Series Smart Switches , like basic model CBS250-8T-D , can do Extended ACLs to Allow/deny ports and protocols ?
I only want to filter out the names of the interfaces of a switch using the command "Show interface status". How can I apply filtering to this command?
Hi there,Recently we had issues with C3850-48T. This switch is stacked and works fine. But sometimes it goes to reboot state.I saw the crashinfo file but didn't find any thing suspicious and I don't know that what does it mean when no crash reason is...
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 - ...
Hi Guys, i am getting issues to write confgurayion on cisco switch. I am observing some ssh process logs as shwon below. Can we clear this ssh process from CLI? Sw(config)#do sh proc cpu sor | i SSH3 1483 808 1835 0.00% 0.00% 0.00% 1 SSH Process417 1...
Im trying to understand what these errors are that I get on PRTG. Ill post the commands I used to see what the switch tells me about the transceiver. Any insight is always appreciated. mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not app...
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