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LOG

华为交换机 Smart Link 双上行主备备份配置

华为交换机 Smart Link 双上行主备备份配置

华为交换机双上行组网 Smart Link 主备配置完整示例：Trunk 上行口与业务 VLAN 规划、主从接口与回切时间 WTR 设置、Flush 报文收发机制、display smart-link group 验证命令，以及与 Monitor Link 联动和常见配置错误排查。

admin admin 2026-09-17
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Arista EOS EVPN-VXLAN Symmetric IRB Configuration

Arista EOS EVPN-VXLAN Symmetric IRB Configuration

Configure EVPN-VXLAN symmetric IRB on Arista EOS: VRF and L3 VNI mapping, VTEP source interface, EVPN address family, and multihoming on the leaf swit

admin admin 2026-09-17
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ArubaOS-CX Dynamic Segmentation: UBT Configuration

ArubaOS-CX Dynamic Segmentation: UBT Configuration

Configure ArubaOS-CX dynamic segmentation with user-based tunneling: gateway zones, role to zone mapping, the tunnel endpoint on the access switch, an

admin admin 2026-09-17
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Dell SmartFabric OS10 ACL Configuration and Verification

Dell SmartFabric OS10 ACL Configuration and Verification

Configure ingress and egress ACLs on Dell SmartFabric OS10: access-list rules, applying filters to interfaces, VLANs and port-channels, and verifying

admin admin 2026-09-17
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Junos RE Protection: Control Plane Filter and Policers

Junos RE Protection: Control Plane Filter and Policers

Protect a Junos Routing Engine from TCP and ICMP floods: build the protect-RE stateless filter with policers, apply it to lo0, and verify with show fi

admin admin 2026-09-17
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Kubernetes Autoscaling: HPA vs VPA vs KEDA

Kubernetes Autoscaling: HPA vs VPA vs KEDA

Choose the right Kubernetes autoscaler: HPA for replica scaling on metrics, VPA for right-sizing requests, KEDA for event-driven and scale-to-zero wor

admin admin 2026-09-17
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fail2ban jail.local and nftables Backend Setup

fail2ban jail.local and nftables Backend Setup

Configure fail2ban the maintainable way: jail.local overrides, the systemd log backend, nftables banaction, custom filters tested with fail2ban-regex,

admin admin 2026-09-17
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Nokia SR OS MD-CLI: Commit Model and Workflow

Nokia SR OS MD-CLI: Commit Model and Workflow

Learn the Nokia SR OS MD-CLI workflow: candidate datastore, commit, validate, compare and rollback, plus a translation table for Junos and IOS XR engi

admin admin 2026-09-17
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Panorama Device Groups and Templates Explained

Panorama Device Groups and Templates Explained

How Panorama device groups and templates split policy from device configuration, how inheritance works, and what to check when a push does not reach a

admin admin 2026-09-17
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FortiGate HA Failover Troubleshooting (FGCP)

FortiGate HA Failover Troubleshooting (FGCP)

Diagnose Fortinet FGCP HA problems - split-brain, unsynchronised configurations, heartbeat loss - with the diagnose and checksum commands that show th

admin admin 2026-09-17
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