Activity in Technology and Support
Introducing Stack Automation: The New DevNet Sandbox Portal
Hi @All ,You may have noticed I haven’t been as active in the community lately as I’d have liked. There’s a good reason for that: over the last few months, we’ve been building and testing a brand-new sandbox environment.It’s taken a while to get ever...
Cisco Catalyst C9300 SFP compatibility Issue
hello eveyone,I'm beginner when it come to networkingi'm experiencing an SFP fiber optic connectivity issue with Cisco Catalyst C9300 swtich.1. Network Configuration Switch: Cisco Catalyst C9300 Other Switches Tested: Netgear GS728TXP, HP 1820-24G-PO...
Installation Guide for Cisco ACI Simulator 6.0.3d
Cisco ACI Simulator 6.0.3d Installation Guide The Cisco ACI (Application Centric Infrastructure) Simulator is a valuable tool for simulating ACI environments before actual implementation. In this guide, we will walk through the installation ...
Sub-interfaces Using Configuration Groups SDWAN
Doing some testing with SDWAN 20.15.6.1 and I am trying to configure a sub-interface on the service side. I have tried adding a CLI template but it does not get applied to the router and don't see any option under the profile for the ethernet interfa...
C9407R having random packet drop issue connected to PA3410 firewall
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-...
BLE Beacon Data in Cisco Catalyst Center vs Cisco Spaces
Hi, I am investigating what access point and BLE beacon information can be retrieved directly from Cisco Catalyst Center and what information requires Cisco Spaces. I'd like like to understand what is available in the Catalyst Center (GUI, API, CLI c...
Help with CP-8841 Phone Fiber SFP
I have several new, out of box, CP-8841 phones with included fiber SFPs. The Cisco switch they connect to is also fiber and is properly configured by a network engineering colleague.I can see the SFP fiber light from the switch port at the desk no ...
Cisco SG350-28 broken reset switch
Hi, So I've bought a second hand Cisco SG350-28, however I just found out on the switch the reset button is broken off the mainboard, I'm wondering if there's any way to get a replacement or if there might be some tips about DIY'ing it.
how a router route a directed broadcast packet to another subnet
topology： R3---R2---R4R3 and left interface of R2 in 10.10.10.0/24;R4 and right interface of R2 in 10.10.20.0/24 subnet. when R3 ping 10.10.20.255,it receives a reply from 10.10.10.1 which is R2's interface in 10.10.10.0/24 subnet. why?In my opin...
About service communication using VPN 0
Hi Team,As outlined below, we would like to configure vEdge to perform routing in VPN 0 so that NTP can be synchronized between legacy network devices and servers.(Due to the network architecture, communication needs to take place over the underlay.)...
Cisco Secure Access Change Log for 2026-09-25 to 2026-10-01
Cisco Secure Access Change LogRelease window: 2026-09-25 to 2026-10-01SummaryDLP: Improved archive, embedded-file and attachment inspection, with corrected notifications and reporting.Security Insights: More reliable loading, clearer charts and alert...
Cannot Launch Catalyst Center Sandbox "unavailable resources"
Can someone please assist me with clearing this error when I try to launch the catalyst center sandbox? I have 5 days until my enarsi and really need to get in there. Thanks !!
Meraki reserved sandbox setup failing
I'm new to using devnet sandboxes. I was able to setup a Meraki reserved sandbox last week. Ever since then I have been unable to relaunch the original sandbox or launch a new one. I keep getting the following error, "Torque was not able to complete ...
Success Capsules | Nexus Dashboard Software Image Management
A technical and operational guide on decoupling software staging, pre-upgrade validation, and execution across Cisco NX-OS and IOS-XE fabrics. Learn how Nexus Dashboard eliminates change window stress, prevents downtime through automated vPC peer spl...
Integrating Smart Switches with Hypershield On-Premises Controller
Success Capsules | Integrating Smart Switches with Hypershield On-Premises ControllerExplore how to integrate a Cisco Nexus Smart Switch with Cisco Hypershield On-Prem Controller, from prerequisites to activation. See DPUs powered via Service Acceler...
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