Technology and Support

Tagged vs Untagged Frames

I am trying to get a better understanding of why something is working.  SW1 is another vendors switch which connects there devices, SW2 is my switch which connects devices on my network.  SW1 and SW2 are connected via a trunk link that allows VLAN 30...

Missing connection logs

Hello,I've successfully configured an external syslog server on FDM, and it's receiving messages correctly. I've set the Default Action Block to send syslog messages, and those are arriving as expected on the external server (among other messages).Ho...

September & October 2025 - EMEA Expert Insights Series

Welcome to our 2025 September & October Expert Insights Series.Join our sessions where experts will guide you through the foundational aspects of various architectures and products. During these sessions, you'll have access to showcases, real-world u...

Cisco Intersight Hands-On Operations

The following webinar contains:• Comprehensive Learning: Gain insights into Intersight’s foundational features, advanced integrations, and automation possibilities • Interactive Sessions: Experience live demonstrations of key capabilities, tools, and...

Switch no guarda configuracion WS-3650

Good morning, team. I have an issue with a WS-3650 version 16.12.13. It's configured correctly, but when I unplug it and plug it back in, it appears to be back to factory settings.I've already tried doing this to configure the registers.   config-reg...

CSCwq23247 - After Appstore update Webex_for_iOS-45.7.0.11201

Reinstall doesn't fix it. After 5 minutes issue happens again. 

YANG: The Power of Data Modeling

DNS Cache Inconsistency for ndvs.org – Stale Entry Returning 24.39.57.

Using https://cachecheck.opendns.com/, I'm seeing inconsistent DNS resolution for the domain ndvs.org across different OpenDNS nodes.Domain: ndvs.orgCorrect IP address: 50.170.174.132Incorrect (stale) IP address: 24.39.57.94Previous valid IP before c...

Cisco C9407 upgrade path 16.12.03a to 17.9.6a ?

Recently need to upgrade C9407 Current version: 16.12.03aTarget version: 17.9.6a Supervisor 1 XL Module with 25G FW: 16.12.2rCPLD: 19032905 Two 9407 SVL units---Can't find the upgrade path in official documentation?Can we upgrade directly from 16.12...

Getting Started with Cisco Intersight

In the following webinar, you will explore the fundamentals of Cisco Intersight and its deployment options. Learn how to deploy and leverage this powerful platform to suit your unique IT requirements

WLC9800 APs unjoin

After i delete the APs that is unjoin in my controller, after a few seconds some APs show up again as same status unjoin and when i try to delete, it pop up again, if you have any suggestion how to solve this issue gladly appreciate it.

Cisco Catalyst Center Global Manager

In this webinar, you will lean how Catalyst Center Global Manager offers a unified dashboard to manage large-scale and global deployments. It delivers comprehensive visibility into network health across branches, covering campus, policy, and WAN envi...

i don't have ipv6 and only using ipv4. when i ping resolve ipv6 not ip

i don't have ipv6 and only using ipv4. when i ping resolve ipv6 not ipv4Lab-Hub#ping yahoo.comType escape sequence to abort.Sending 5, 100-byte ICMP Echos to 2001:4998:24:120D::1:0, timeout is 2 seconds:% No valid route for destinationSuccess rate is...

Building Your First Synthetic Scripts

In the following webinar, a Cisco Observability Engineer walks you through building your first synthetic scripts, for both BRUM and API. Feel free to simply watch or take the opportunity to get hands-on experience by following along using templates w...