cli 归档 - 第9页共13页

Cisco ASA CLI Basics: Modes, Interfaces, ACLs and NAT

Cisco ASA CLI from console to production: modes, nameif and security levels, object NAT, ACLs, SSH, failover, site-to-site VPN and a checklist.

admin 2026-09-04

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Cisco EEM Applets: Automate with event syslog Triggers

Automate Cisco IOS responses with Embedded Event Manager applets: syslog, SNMP and timer triggers, CLI actions, alerting, testing and production-safe

admin 2026-09-04

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Cisco IP Helper-Address: DHCP Relay Configuration

Cisco IOS DHCP relay with ip helper-address: forward client broadcasts to a central DHCP server across VLANs, add multiple servers and verify the rela

admin 2026-09-04

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Cisco DHCP Snooping: Trusted and Untrusted Ports

Cisco DHCP snooping: enable it per VLAN, trust server ports, rate-limit starvation floods, persist the binding database and verify with show commands.

admin 2026-09-04

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Linux VLAN Tagging with ip link: 802.1Q Sub-Interfaces

Create Linux VLAN sub-interfaces with ip link: 802.1Q tagging, multiple VLANs per trunk, MTU and offload tuning, plus systemd-networkd persistence.

admin 2026-09-04

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Cisco Voice VLAN Setup for IP Phones (Auxiliary VLAN)

Configure the Cisco voice VLAN on Catalyst access ports: switchport voice vlan modes, QoS trust, LLDP-MED, uplink trunks and phone registration troubl

admin 2026-09-04

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Cisco HSRP Configuration: Priority, Preempt and Track

Configure Cisco HSRP with standby priority, preempt and object tracking: a full two-router example, failover behaviour and the show standby output to

admin 2026-09-04

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Brocade FC Zoning with CLI: Aliases, Zones and Configs

Brocade FC zoning from the CLI: create aliases, zones and configurations, enable with cfgEnable, verify with cfgShow, and fix hosts that cannot see th

admin 2026-09-04

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iperf3 Bandwidth Testing Guide: TCP/UDP Commands Explained

Measure network throughput with iperf3: TCP and UDP tests, parallel streams, reverse mode, JSON output, MTU and tunnel caveats, plus tuning tips.

admin 2026-09-04

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Junos Static Routes and Qualified Next Hops Explained

Junos static routes with qualified next hops: preference and metric, deterministic failover ladders, BFD liveness detection, and inactive-route fixes.

admin 2026-09-04

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