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...
Hi to all Cisco Community members,I have a question about the use of having multiple WAN interfaces on a routing device. (Firewall with routing capabilities, traditional router, Layer 3 switches[?]) Admittedly, I don't know what I'm looking for in sp...
Hello, Hello, We have to upgrade ios on the stacked switch The ports of Both switches (SW1&SW2 No LACP )are connected to one server (teaming port) Can we upgrade without interrupting server connection? When I upgrade switch 1, switch 2 sh...
I have a Vivi box connected to a port on a 2960-X. As soon as a client connects to the Vivi the port on the switch starts going down and coming up constantly... 001120: 02:37:07: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to down 0...
HI， I have a question that is very doubtful. I configured the ACL on the 3850 switch, but I have a different situation when I add an ACL entry and remove the ACL entry. I found it through "show mgmt-infra trace messages acl-events switch 1". Scenar...
If you take the network 192.168.1.0/24 and subnet it to four /26 networks, what is the usable address range in the third subnet? kindly explain me the answer in brief. AND please explain me the underlined text in simple manner. THANKS !
Hi, Our company is trying to implement Microsoft ExpressRoute. Microsoft gives the solution as a Q-in-Q Vlan. We have to strip our the S-Tag and use the 3 C-Tag VLANs for our BGP links to Microsoft. Our service provider gives us a L2 trunk link whic...
Hello all, I am starting a lab that I am configuring myself and right off the bat when I connect the ports at least one will not come on although it says it is on when I look at the switch. Any clue as to why it isn't coming up. I have not configure...
I am labbing Multicast Assertion mechanism. From https://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/212595-how-well-do-you-know-pim-assert-mechanis.html Based on the highest PIM neighbor behavior R2 should be elected for (*,G) , right ? ...
Hi I need to Make Upgrade IOS for 2960 Switches . want to make as 6500 Series Switches as TFTP server How can i make is it possible to upload IOS of 2960 Switch in 6500 series Switches
Hi i have Cisco 6504 with 3 active module , when i work on it , this logging message appear %DIAG-SP-3-MINOR: Module 3: Online Diagnostics detected a Minor Error. Please use 'show diagnostic result <target>' to see test results. and then all traf...
Hello all. Quick question. I'm currently reading up on some CCNP switch topics, started from basics and I encountered the below diagram. ImI just seeking some clarification on why there's a Layer 2 link between the distribution switches. I'm assuming...
I was wondering if anyone has ever had to replace a member of a VSS particulary with the Cisco 4500x series. I have seen the document on replacing a 720 sup module for the Cat 6500 series, but I am wondering if there is anything particular for the 45...
I've just purchased a new Cisco 881.I'm using NAT NVI for my inbound static mappings. However, regardless of the fact that the config is saved to nvram, after a reload of the router, the NAT mappings are setup as traditional inside/outside mappings. ...
Hi Guys Ive got a 24 port GIG module in this 3945 ISR. Im using BVI to place an IP address on the VLAN1 of the router, which is my LAN default gateway. Rather than having to initiate connections to the Switch Module for configuration using 'servi...
Hi There, On one of my WLANs on my 5520 WLC's that is meant for public access I get some clients that are getting excluded due to 802.1x authentication failure. The WLAN is configured using a WPA2 PSK and not 802.1x. I have client exclusion ena...
