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NETCONF and RESTCONF on IOS XE: Enable, Verify, Curl

NETCONF and RESTCONF on IOS XE: Enable, Verify, Curl

Enable NETCONF and RESTCONF on Cisco IOS XE, verify the YANG management process, and read or patch interface data with curl and real YANG paths.

admin admin 2026-09-13
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Ansible Network Modules: ios_config, Facts and Config Backup

Ansible Network Modules: ios_config, Facts and Config Backup

ios_config in production: parents and lines, match and replace semantics, real backups that do not overwrite, ios_facts gating and the idempotency tra

admin admin 2026-09-12
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Cisco 交换机 CPU 占用过高排查：从 show processes 到 CoPP

Cisco 交换机 CPU 占用过高排查：从 show processes 到 CoPP

Cisco Catalyst 交换机 CPU 占用过高怎么排查？本文用 show processes cpu 与 platform 输出区分进程占用还是上送 CPU 的流量，并给出 SISF、ARP 风暴与 CoPP 控制平面限速的完整处置流程。

admin admin 2026-09-12
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Anycast RP with MSDP: Redundant Multicast Rendezvous Points

Anycast RP with MSDP: Redundant Multicast Rendezvous Points

Deploy redundant multicast RPs with Anycast RP and MSDP: shared RP address, loopback peering, peer-RPF pitfalls, failover testing and SA cache checks.

admin admin 2026-09-12
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DMVPN Phase 3: NHRP Shortcut and Hub Configuration

DMVPN Phase 3: NHRP Shortcut and Hub Configuration

DMVPN phase 3 explained: how NHRP redirect and NHRP shortcut work together, hub and spoke configuration, routing summarisation, NAT and verification.

admin admin 2026-09-12
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PTP Boundary Clock vs Transparent Clock: Which to Deploy

PTP Boundary Clock vs Transparent Clock: Which to Deploy

Boundary clocks terminate and regenerate PTP; transparent clocks correct residence time per hop. Profiles, error budgets and configuration compared.

admin admin 2026-09-12
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Terraform for Network Automation: Cisco, Junos and Arista

Terraform for Network Automation: Cisco, Junos and Arista

Terraform for Cisco IOS XE, NX-OS, Junos and Arista EOS: providers, VLAN and interface resources, safe state, import and CI drift detection.

admin admin 2026-09-12
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Catalyst 9000 Smart Licensing Troubleshooting: SLP and CSSM

Catalyst 9000 Smart Licensing Troubleshooting: SLP and CSSM

Fix Cisco Smart Licensing Using Policy on Catalyst 9000: read SMART_LIC errors, restore CSSM trust, solve UDI and clock mismatches, and force a sync.

admin admin 2026-09-12
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VXLAN EVPN Multi-Site: Border Gateway Design Guide

VXLAN EVPN Multi-Site: Border Gateway Design Guide

VXLAN EVPN multi-site border gateway design: anycast VTEPs, Type-2/3/5 re-origination, delay-restore and fabric tracking that scale.

admin admin 2026-09-12
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Cisco NX-OS ISSU: Impact Checks and Upgrade Workflow

Cisco NX-OS ISSU: Impact Checks and Upgrade Workflow

Cisco NX-OS ISSU upgrade checks: read show install all impact, resolve feature incompatibilities, handle EPLD and vPC, then verify the switch afterwar

admin admin 2026-09-12
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