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标签：Cisco IOS

QoS Trust Boundary and DSCP Marking on Cisco Switches

QoS Trust Boundary and DSCP Marking on Cisco Switches

Design the QoS trust boundary on Cisco access switches: where to trust CoS or DSCP, mark with MQC, map COS-to-DSCP and verify with show commands.

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Cisco IOS Logging and Syslog Config: Levels, Buffer and Traps

Cisco IOS Logging and Syslog Config: Levels, Buffer and Traps

Configure Cisco IOS syslog properly: severity levels, logging buffered size, console and monitor logging, remote hosts, persistent logging and verific

admin admin 2026-09-10
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NetFlow v9 Configuration on Cisco IOS: Flexible NetFlow Guide

NetFlow v9 Configuration on Cisco IOS: Flexible NetFlow Guide

Build Flexible NetFlow on Cisco IOS XE: flow records, exporters, monitors, cache timers, sampling and the show commands that prove exports are arrivin

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PIM Sparse Mode Configuration: RP, RPF Check and Verification

PIM Sparse Mode Configuration: RP, RPF Check and Verification

Configure PIM sparse mode on Cisco IOS XE: multicast routing, interface PIM, static and auto-RP, RPF check failures and the verification commands that

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IGMP Snooping Configuration on Cisco Switches (CLI Guide)

IGMP Snooping Configuration on Cisco Switches (CLI Guide)

Enable and verify IGMP snooping on Cisco switches: per-VLAN settings, mrouter static ports, querier election, immediate-leave tuning and show commands

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Cisco 802.1X and MAB Configuration: Step-by-Step CLI Guide

Cisco 802.1X and MAB Configuration: Step-by-Step CLI Guide

Configure Cisco 802.1X port-based authentication and MAC Authentication Bypass (MAB) on IOS XE switches - RADIUS, host modes, verification commands.

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