Data Center and Cloud

Transition to Intersight Managed Mode with Confidence

How the Cisco Intersight Managed Mode Transition Tool helps you assess readiness, convert supported configuration, protect the rollback path, and plan a controlled transition.Cisco has announced planned End-of-Sale and End-of-Life (EOL) milestones f...

Resolved! APIC database

APIC cluster "Data Layer Partially Diverged" after RMA of APIC2Three-node cluster, APIC-M3, version 6.0(5h). APIC2 had a disk failure, we got an RMA.Followed the procedure: decommissioned APIC2 from APIC1, physically swapped, ran the setup script wit...

ACI & UCS Context: Packets larger than 2382 bytes fail to transmit

Hello community,I would like to get your assessment regarding a QoS issue between Cisco ACI and Cisco UCS.There is already a long-standing TAC case (700529798) open on this topic, but it has not yet been fully resolved. Regardless of the TAC's findin...

Getting error while Add Pod in ACI sandbox

Hi I am trying to add pod in devnet sandbox lab getting bekow error.Can any one help on this or any clarify is this issue on sandbox only?Validation failed: Infra vlan 4 is used by Domain uni/l3dom-HRN_IPNL3Out_RoutedDomain and in AEP uni/infra/atten...

UCS C240 UEFI boot option not detected

UCS won't boot. Tried booting using USB Drive, vKVM and finally attached an external CD-ROM. Attached are some of the error messages. Most informational message is when I tried installing CML from a DVD-ROM Drive.

Optimize AI Data Center Traffic with Cisco Intelligent Packet Flow

Our mission is to empower network engineers and tech enthusiasts to explore Cisco AI Networking through expert-led technical articles. Disclaimer: These articles, authored by Cisco Experts, are designed to build a comprehensive AI Networking know...

CP 8841, CP 8811 Authentication Failure

CP 8841, CP 8811 Authentication Failure, new ip phone, when i open authentication from switch port configuration its working, with authentication its not working , status showing unauthentication.

Cisco Live Protect: End the Emergency Patching Dilemma

The Shift to Proactive Operations: The Emergency Patch Dilemma In the fast-paced world of modern data center networking, the difference between seamless operations and a major outage often comes down to how quickly you can neutralize a security thre...

Success Capsules | Intersight: AI on Cisco Infrastructures

See a working AI assistant for Cisco Intersight that answers plain-English questions about your infrastructure, including inventory, chassis details, and alarms by calling the Intersight API through the Model Context Protocol (MCP). Everything runs o...

Data Center Adoption Video Series | Success Capsules

Accelerate Your Infrastructure with Cloud and AI Success Capsules! We are excited to introduce Success Capsules for Cloud and AI Infrastructure, our new video series designed to help you master the complexities of your modern data center. Immerse ...

Resolved! URGENT: Akira Ransomware Attack — Need Recovery Help ASAP

Hello everyone,I’m an IT Manager dealing with an Akira ransomware incident and urgently looking for help with recovery, decryption, and incident response. Paid professional solutions are welcome if there is a legitimate and technically viable recover...

Symmetric IRB behavior with Route-Target L2 and L3 VNI

In VXLAN EVPN networks, Inter-VNI (inter-subnet) communication is performed using IRB (Integrated Routing and Bridging) functionality. Without this feature, a dedicated L3 device would be needed to perform inter-VNI routing. This concept is similar t...

Designated Forwarder in VXLAN EVPN Multi Homing

In VXLAN EVPN Fabric, The Designated Forwarder election through BGP Route Type-4, is used for two purposes: -VXLAN EVPN Multsite Architecture between Border Gateways. -VXLAN EVPN Multi Homing between Leaves, similar to VPC. For both use cases, this m...

N2K-C2348UPQ-10GE Fex does not come up and showing SDP timeout

Hi Community,We have recently installed new N2K-C2348UPQ-10GE FEXs, however they are not coming online.The interface is showing :Ethernet1/21 is down (SDP timeout/SFP Mismatch)and the fex logs: [26209]04/21/2026 21:27:31.692130: fport [0x1a014000]:L...

Box to Box Redundancy in a C8200 Call Manager Express context

Good DayI have a pair of C8200L devices racked and online.These will be running a redundant Call Manager Express install.First I am told I must configure Box-to-Box redundancy.I navigate here but find this document unusable:Home > Support > Product ...

Data Center and Cloud

Browse the Community

Cisco Developed UCS Integrations

UCS Director