cisco 归档 - 夜莺博客

Cisco IP SLA Tracking for Floating Static Route Failover

Build ISP failover with Cisco IP SLA: icmp-echo probes, track objects, floating static routes with distance and NAT failover using route-maps.

admin 2026-10-08

0 0 0

SAN NPIV and NPV: Fibre Channel Port Virtualisation

NPIV and NPV explained: how to virtualise Fibre Channel ports, cut domain IDs in large fabrics, and configure F/NP ports with real Cisco MDS commands.

admin 2026-10-06

0 0 0

BGP 4-Byte ASN Migration: AS_TRANS and Interop

Migrate BGP networks to 4-byte AS numbers safely: AS_TRANS 23456 behaviour, capability negotiation, dual-AS peering and a step-by-step upgrade order.

admin 2026-10-06

0 0 0

MPLS LSP Ping and Traceroute: Data Plane Verification

MPLS LSP ping and LSP traceroute verify the label data plane, not just the control plane. FEC types, reply modes and return codes explained with IOS X

admin 2026-10-06

0 0 0

Ethernet CFM 802.1ag: Service OAM Configuration Guide

How Ethernet CFM (IEEE 802.1ag) maintenance domains, MEPs and MIPs work, with Cisco and Juniper CLI examples for continuity check, loopback and linktr

admin 2026-10-06

0 0 0

Cisco IOS XR ACL Configuration and Verification

Configure and verify access lists on Cisco IOS XR: extended ACLs, sequence numbering, counter checks, object groups and the mistakes that silently dro

admin 2026-10-05

0 0 0

Cisco IOS XR Model-Driven Telemetry Configuration

Configure model-driven telemetry on IOS XR: destination groups, sensor groups, subscriptions, dial-in vs dial-out, encodings, and verification command

admin 2026-10-05

0 0 0