Welcome to the Cisco Community Ask Me Anything conversation. Submit your questions from Monday, February 2, 2026, through Friday, February 20, 2026. Our colleagues Amruta Navadagi, Anaya Kalawat, and Mohammad Mehtabuddin will be waiting to assist you...
I have a question regarding SPAN. My main focus is to detect spams and viruses on the Employee VLAN.(We have server,student,guest and print VLANs too) using an IDS. Would that traffic be detectable with my SPAN config which mirrors out/in traffic fro...
Dear Members, I have two cisco 2960 switches. ports fa0/1 and fas0/2 of both are interconnected and ether channel is configured. I want to mirror the traffic in ports 3 and 5 of Switch1 and port 3 in Switch 2 to the destination port fas0/6 of SW2 as...
Hi we need to stack these three switches together i have gone through some documentation it says that 3750G and 3750E can stack together can we stack all three of them. Secondly Do IOS lverswion have to be same . I am bit old school. It use to be sam...
Hello, Based on the diagram attached that i have designed, i am experiencing very slow connection to the internet. i don't know why, i might be that something is wrong on this topology. could someone suggest what would be. by the way the internet c...
Hey guys, there is a problem with all of my cisco 3850 switches. I made a manual endless ping at all devices and there are often responses of 2000ms. the normal value is 2ms. there is the recommended IOS version installed: 03.06.06E Did anyone else e...
We have a bunch of 4510R-E running sup Vs with WS-X4548-RJ45V+ blades in them. We are upgrading the sups to sup8's. First obstacle was the ios. Sup8's need ios 3.7 to run in a 4510R-E. Now the sups come up in the chassis, but all the 4548 blades ...
I bought a new CISCO switch. It's new product in the Cisco product box. But when I boot it first, unknown command line appears.(see attached screenshots) 1. Is it normal new product or used product ? 2. I heard the answer from the seller. He ...
I bought a new CISCO switch. It's new product in the Cisco product box. But when I boot it first, unknown command line appears.(see attached screenshots) 1. Is it normal new product or used product ? 2. I heard the answer from the seller. He said...
Hi i have an issue regarding mac address forwarding from a computer Lab that is connected to a D-link Switch , but wants to be part of the cisco network that was recently installed. How does one forward dot1x that is configured on all the ports on th...
Hello, I have an 8 port 2960-CG switch. I notice that when I load it up in my SNMP monitoring tool (PRTG) that the temperature readouts are in 3 bands i.e. 'nomal', 'warning' and 'critical'. With all my other Cisco switches I get actual degree values...
I have a CAT3850. Configured management port with internal LAN routable IP (so that i can access it from outside lab but still on intranet). Switch is reachable from outside the lab, but when pinged from switch itself, ping doesn't work. However, I a...
Hi Everyone, Ive searched for answers for this and from the tutorials I read etc I couldn't find anything wrong with what I was doing. I have a switch which I use just when I need one for something. Today i want to configure a little 3G / wifi rout...
Hi All , I am having an issue with the connectivity between My Nexus 9000 and My old switches ( Cisco 2960,3560 ) . Scenario is as follows . 1- I have two nexus switches with vPC configured between them and then connected to an ASA-5545x Cluster 2...
So we put in some new switches recently, 2x4500 and 4xNexus3048s. This came up originally because when I tried to configure the switches to use our Radius server for authentication. They would not authenticate, so I ran wireshark on my Radius serve...
Hello I have a problem with the WS-C3850-24T.I'm throwing this error, in the log: Is this problem due to the source of power? And to make sure I tried with this command - show environment power IS POWER SOURCE FAILED? Please appreciate your wis...
