high-availability 归档 - 夜莺博客

标签：high-availability

Arista EOS VRRP Configuration and Verification

Arista EOS VRRP Configuration and Verification

Configure VRRP on Arista EOS: virtual router IDs, priority and preemption, interface and object tracking, version 3 for IPv6, and show vrrp checks.

admin admin 2026-10-13
0 0 0
Proxmox Corosync Link Priority and Token Tuning

Proxmox Corosync Link Priority and Token Tuning

Stop Proxmox clusters fencing themselves: give corosync its own link, set knet_link_priority, and understand what raising the token timeout really cos

admin admin 2026-10-13
0 0 0
Junos Multihop BFD for BGP Failover

Junos Multihop BFD for BGP Failover

Configure multihop BFD for BGP on Junos: session-mode, local-address and holddown-interval, plus show bfd session verification for fast peer failure d

admin admin 2026-10-13
0 0 0
Nexus vPC Peer-Link Troubleshooting: Fix Type-1 Mismatch

Nexus vPC Peer-Link Troubleshooting: Fix Type-1 Mismatch

A checklist-driven approach to Nexus vPC faults: keepalive and peer-link prerequisites, type-1 consistency mismatches, and the show commands that loca

admin admin 2026-10-12
0 0 0
Cisco Catalyst 9300: StackWise vs VSS Explained

Cisco Catalyst 9300: StackWise vs VSS Explained

Catalyst 9300 supports StackWise and StackWise Virtual, not VSS. Compare backplane stacking, front-panel virtual switching and legacy VSS behaviour.

admin admin 2026-10-12
0 0 0
H3C Comware VRRP Configuration and Verification

H3C Comware VRRP Configuration and Verification

Configure H3C Comware VRRP: vrrp vrid virtual-ip, priority and preempt delay, interface tracking, and display vrrp verification.

admin admin 2026-10-09
0 0 0
pfSense CARP High Availability: Failover Configuration

pfSense CARP High Availability: Failover Configuration

Configure pfSense CARP HA with virtual IPs, pfsync state sync and XMLRPC config sync, then verify failover in under a second.

admin admin 2026-10-09
0 0 0
Windows Server DHCP Failover: Load Balance vs Hot Standby

Windows Server DHCP Failover: Load Balance vs Hot Standby

Set up Windows Server DHCP failover with Add-DhcpServerv4Failover: load balance vs hot standby, MCLT, reserve pools and verification.

admin admin 2026-10-09
0 0 0
Check Point ClusterXL Failover Troubleshooting Commands

Check Point ClusterXL Failover Troubleshooting Commands

Diagnose Check Point ClusterXL failovers with cphaprob state, critical device pnote output and the show cluster failover commands.

admin admin 2026-10-09
0 0 0
ArubaOS-CX MSTP Configuration and Verification

ArubaOS-CX MSTP Configuration and Verification

Step-by-step ArubaOS-CX MSTP: region name and revision, VLAN-to-instance mapping, deterministic root bridges, edge hardening and verification commands

admin admin 2026-10-05
0 0 0
1 2 3