LOG 归档 - 第18页共139页

华为交换机 NTP 时间同步配置实战（含认证与排障）

华为交换机 NTP 时间同步配置实战：ntp-service unicast-server 与 NTP 认证（md5/hmac-sha256）配置、时钟层级与同步状态查看，并附 display ntp status、display ntp sessions 等验证命令与常见不同步故障的排错顺序。

admin 2026-10-04

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Arista EOS TAP Aggregation: Build a Packet Broker

Turn an Arista EOS switch into a TAP aggregation packet broker: tap/tool ports, groups, VLAN stripping, truncation and PTP configuration.

admin 2026-10-04

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ArubaOS-CX SNMP Traps: From Community to Trap Receiver

Configure ArubaOS-CX SNMPv2c and SNMPv3 traps step by step, including trap-source VRF selection and show snmp verification commands.

admin 2026-10-04

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Dell OS10 Route-Map Configuration: Match, Set and Verify

Build Dell SmartFabric OS10 route-maps for redistribution and BGP filtering, with match/set examples and show route-map verification commands.

admin 2026-10-04

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Juniper MC-LAG ICCP Flapping: MTU and Keepalive Tuning

Diagnose Juniper MC-LAG ICCP session flaps caused by MTU mismatches, keepalive timeouts and ICL congestion, with Junos CLI verification steps.

admin 2026-10-04

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SNMPv3 authPriv Configuration: Cisco and Juniper Examples

Configure SNMPv3 authPriv on Cisco IOS and Junos: groups, views, auth md5/sha with priv aes, trap destinations and snmpwalk verification.

admin 2026-10-03

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PTP Boundary Clock vs Transparent Clock Explained

IEEE 1588 PTP explained: ordinary, boundary and transparent clocks, why boundary clocks stop jitter accumulation, and what to configure on switches.

admin 2026-10-03

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IPv6 SLAAC vs DHCPv6: RA Flags M, O and A Explained

Understand IPv6 Router Advertisement flags: M and O for DHCPv6, the A flag for SLAAC, router and prefix lifetimes, and common misconfigurations.

admin 2026-10-03

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SPAN, RSPAN and ERSPAN: Port Mirroring Configuration

Configure Cisco port mirroring: local SPAN, RSPAN using a remote-span VLAN over trunks, and ERSPAN GRE sessions, with verification and MTU gotchas.

admin 2026-10-03

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Cisco ASR 9000 show environment: Power, Fans and Temperature

Use show environment on the Cisco ASR 9000 to check power supplies, fans and temperatures, plus show platform and show memory summary for node health.

admin 2026-10-03

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