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Cisco ASR9000/XR: Understanding Fabric and Troubleshooting

Understand Cisco ASR 9000 fabric architecture (NP, FIA, Trident and Typhoon line cards) and debug drops with show pfm, FIA counters and back-pressure

admin 2026-08-26

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Cisco ASR 9000 Fan Module Failure: Troubleshooting Guide

Troubleshoot Cisco ASR 9000 fan tray failures with the TAC workflow: show platform, admin show environment fan, log alarms, JOJI reseat and RMA for IO

admin 2026-08-26

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ASR 9000 Line Card Installation: Verify and Troubleshoot

Install an ASR 9000 line card and verify it: LED states, boot sequence, FPD and seating checks, tengige interface config, and show tech-support for TA

admin 2026-08-24

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Cisco IOS-XR SNMP Troubleshooting: Commands That Matter

Troubleshoot slow SNMP on IOS-XR: understand the mibd architecture, then use show snmp trace requests, mib statistics and queue checks to isolate PDU

admin 2026-08-24

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ASR9000 IOS-XR Fabric Troubleshooting: Commands and Drops

Troubleshoot Cisco ASR9000 IOS-XR fabric packet drops step by step: show pfm alarms, FPD versions, NP counters, FIA link health and VOQ backpressure.

admin 2026-08-24

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Cisco IOS XR Bundle Troubleshooting Guide: LACP, MLAG & BFD

Troubleshoot Cisco IOS XR link bundles: LACP state mismatch, members that will not distribute, BFD over bundle members and MC-LAG with ICCP verificati

admin 2026-08-23

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Troubleshoot Interface CRC Errors on IOS XR Routers

Troubleshoot interface CRC errors on Cisco IOS XR routers: counter semantics, rate sampling, loopback bisection, optical dBm and FEC checks, automatio

admin 2026-08-22

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Troubleshoot Input Drops in Cisco IOS XR

Troubleshoot and fix input drops on Cisco IOS XR routers: the root causes, the show commands that verify each one, and how to confirm the fix.

admin 2026-08-22

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标签：ios-xr