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标签：ios-xr

Cisco ASR 9901 SW_INACTIVE Fix: FPD Firmware Reflash Guide

Cisco ASR 9901 SW_INACTIVE Fix: FPD Firmware Reflash Guide

ASR 9901 line card stuck in SW_INACTIVE? Field fix: dSC bus deadlock diagnosis, breaking cXR limits via install add source, forcing FPD reflash to Rom

admin admin 2026-09-02
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【网络运维】记一次 ASR 9901 业务线卡 SW_INACTIVE 故障修复与 FPD 固件强刷全过程

【网络运维】记一次 ASR 9901 业务线卡 SW_INACTIVE 故障修复与 FPD 固件强刷全过程

Cisco ASR 9901 线卡卡在 SW_INACTIVE 无法启动?本文实录 dSC 总线死锁诊断、install add source 绕过 cXR 加包限制、FPD 强刷 Rommon 3.04 全过程,风扇暴走避坑,冷启动后 24 个端口满血复活。

admin admin 2026-09-02
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Cisco IOS XR OSPF Configuration Examples (ASR 9000)

Cisco IOS XR OSPF Configuration Examples (ASR 9000)

Configure OSPFv2 on Cisco IOS XR ASR 9000 with the commit workflow: interfaces, MD5 authentication, stub and NSSA areas, summarisation and BFD example

admin admin 2026-09-02
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Cisco ASR 9000 IOS XR Show Commands: IM, SYSDB and uIDB

Cisco ASR 9000 IOS XR Show Commands: IM, SYSDB and uIDB

Diagnose ASR 9000 control-plane faults with IOS XR show commands: show im database, sysdb connections, uidb index and watchdog memory thresholds.

admin admin 2026-09-02
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Cisco IOS XR CLI Basics: Command Modes and Show Commands

Cisco IOS XR CLI Basics: Command Modes and Show Commands

Cisco IOS XR CLI fundamentals: EXEC and admin modes, commit and rollback, interface and show commands, SDRs, plus a worked configuration example.

admin admin 2026-09-01
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Cisco ASR 9000 Line Card Bring-Up: Verify and Troubleshoot

Cisco ASR 9000 Line Card Bring-Up: Verify and Troubleshoot

Bring up a new ASR 9000 line card: enable interfaces in IOS XR, verify optics and FPDs, and read show platform states when a card will not reach IOS X

admin admin 2026-08-31
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Cisco IOS XR Configuration Management: Commit, Rollback and Replace

Cisco IOS XR Configuration Management: Commit, Rollback and Replace

Cisco IOS XR commit model explained: commit confirmed, rollback, commit replace, commit comments and labels, diffing, config archive and lockout recov

admin admin 2026-08-30
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Cisco INFRA-ESD-6-PORT_STATE_CHANGE_LINK_DOWN Triage

Cisco INFRA-ESD-6-PORT_STATE_CHANGE_LINK_DOWN Triage

Triage Cisco IOS XR INFRA-ESD-6-PORT_STATE_CHANGE_LINK_DOWN on 8000, ASR 9000 and NCS 5500: map the CE port, reset it and reload the module.

admin admin 2026-08-29
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Cisco ASR 9000 Troubleshooting Commands Guide

Cisco ASR 9000 Troubleshooting Commands Guide

Cisco ASR 9000 IOS XR troubleshooting: show im database views, watchdog threshold memory, NP counters and a repeatable triage order for TAC.

admin admin 2026-08-29
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Cisco IOS XR TAC Command List: Collect Before the Case

Cisco IOS XR TAC Command List: Collect Before the Case

Every IOS XR command a TAC case needs on ASR 9000, NCS and Cisco 8000: platform, install, interface, NPU counters, logging, alarms and routing state.

admin admin 2026-08-29
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