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Cisco ASR 9000 IOS XR show Commands for Troubleshooting

Cisco ASR 9000 IOS XR show Commands for Troubleshooting

A practical set of Cisco ASR 9000 IOS XR show commands for hardware, fabric, interfaces, routing and processes, with what each output tells you.

admin admin 2026-10-02
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DPU and SmartNIC Networking with NVIDIA BlueField and DOCA

DPU and SmartNIC Networking with NVIDIA BlueField and DOCA

How DPUs offload networking, storage and security: BlueField architecture, DOCA services, OVS hardware offload, and when a DPU pays for itself.

admin admin 2026-10-01
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Energy-Efficient Ethernet (802.3az): Benefits and Gotchas

Energy-Efficient Ethernet (802.3az): Benefits and Gotchas

How 802.3az Energy-Efficient Ethernet low power idle works, where the savings are real, and when it causes latency or interop problems.

admin admin 2026-10-01
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Lenovo XClarity Controller Setup and Updates

Lenovo XClarity Controller Setup and Updates

Configure Lenovo XClarity Controller: network settings, remote console, virtual media, firmware updates and Redfish automation across a server fleet.

admin admin 2026-09-26
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Cat6A Permanent Link Certification and TIA-568

Cat6A Permanent Link Certification and TIA-568

How to certify Cat6A copper cabling to ANSI/TIA-568: permanent link tests, insertion loss, NEXT, PS ACR-F, return loss and alien crosstalk explained.

admin admin 2026-09-26
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Fiber Connector Inspection and Cleaning Guide

Fiber Connector Inspection and Cleaning Guide

Dirty endfaces cause up to half of fiber faults. Learn IEC 61300-3-35 inspection, wet-to-dry cleaning, and how to fit it into an optical loss budget.

admin admin 2026-09-26
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TCAM and FIB Scaling: Why Routes Don't Install

TCAM and FIB Scaling: Why Routes Don't Install

Diagnose routes that exist in the RIB but never reach hardware: TCAM regions, host route explosion, verification commands and the design changes that

admin admin 2026-09-24
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ethtool Ring Buffers and Coalescing Tuning

ethtool Ring Buffers and Coalescing Tuning

Tune Linux NICs with ethtool: ring sizes, interrupt coalescing, queue counts, RSS and offloads. Includes verification commands and drop-counter diagno

admin admin 2026-09-23
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ASR 9000 Power Supply Failure: PSM Troubleshooting

ASR 9000 Power Supply Failure: PSM Troubleshooting

Diagnose ASR 9000 power supply module failures with show platform, admin show environment power and inventory, plus JOJI reseat and RMA evidence steps

admin admin 2026-09-23
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ONTAP Disk Commands: Adding, Replacing and Zeroing Disks

ONTAP Disk Commands: Adding, Replacing and Zeroing Disks

Manage ONTAP disks safely: disk show and broken disk checks, spare planning, aggregate add-disks, disk replacement, zeroing and post-change verificati

admin admin 2026-09-21
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