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, we are planning to deploy catalyst 9500-48Y4C as new core switch in our office. What is the best practice to connection stackwise-virtual links and dual-active-detection links? use uplink module 100G ports with DAC or use normal ports? Are the fi...
Can anyone explain why a burned-in MAC address might deviate from the logical numbering scheme? Typically, the MAC addresses for a switch’s ports begin with a base MAC address and increment in sequence, corresponding to the port numbers. In our case,...
Hi everyoneOur SFP-10G-ER modules aren't recognized as supported by a C9300-24S with C9300-NM-8X. According to the compatibility matrix, they should be compatible.We tried workarounds I've found for similar errors, like cold-boot the switch several t...
I want to limit the bandwidth for specific traffic from a server on the Catalyst 9000.Is the following policing configuration correct?I want to control the bandwidth on the inbound direction of the interface connected to the server.Also, am I correct...
PXE boot (WDS) stopped working after we upgraded MS switches to 18.1.9.The PXE client downloads the NBP, then hangs at "Contacting server" (0x102).- Same PXE failure on 3 different MS210 stacks in 3 different networks, all on 18.1.9.- Downgrading one...
We are troubleshooting a recurring issue between a Cisco Catalyst 9407R and a Palo Alto PA-3410, and would like to know if anyone has seen the same behaviour.Environment- Switch: Catalyst 9407R stackwise virtual, IOS-XE 17.18.3, supervisor/line card-...
Hey all,Long story short;I have a C2960G-24TC-L here that had sw version that was incapable of crypto keys. The goal being able to ssh into it..The state of this thing now is pretty much blank after after formating the flash like a dummy beacause of ...
Hello There is any Catalyst model that have (12 x RJ45 + 12 x SFP+) as same as CBS350-24XTSAppreciate your help Thanks
Dear Team, I am unable to upgrade my cisco switch image & getting below error. Also from same tftp i am able to upgrade WLC imagealso able to take backups & everything but not able to upgarde image. ICMP ping is good between user machine & TFTP se...
When an IE-4100 / Catalyst IE-9300 is in PTP-Grandmaster mode, using NTP as reference time, where does the PTP_Account obtain the currentUTCOffset value?Does IOS-XE/IOS-XR/NX-OS have a built-in database?I know that it can be manually overridden with:...
Hello everyone!I am studying enterprise network design and working on a diploma project based on Cisco's three-layer hierarchical network architecture.I would like to understand how network engineers decide which types of network devices are needed i...
Hello everyone!I am studying enterprise network design and working on a diploma project based on Cisco's three-layer architecture.I would like to understand why Layer 3 switches are commonly used at the distribution layer instead of routers.Both devi...
I don't fully understand how the following configuration works—will QoS be controlled correctly?The service policy applied to the interface is TRAFFIC_PRIORITY, but the MARK_QOSGROUP in the policy map is not applied to any interface.In terms of how t...
I am reaching out regarding a discrepancy I've observed between two API endpoints: 1. getNetworkClientsApplicationUsage: https://developer.cisco.com/meraki/api-v1/get-network-clients-application-usage/2. getNetworkClientsBandwidthUsageHistory: https:...
Hello everyone,For a scenario like the diagram uploaded, what is the cisco solution to symmetrically load balance traffic between servers and the switches work in active-active HA mode?I have used nexus 9k switches.I used vPC but it sends same flows ...
