- Hewlett-Packard Switch User Manual
Table Of Contents
- HP ProCurve 2520 Switches Management and Configuration Guide
- Front Cover
- Title Page
- Copyright, Notices, & Publication Data
- Contents
- Feature Index
- 1.Getting Started
- 2.Selecting a Management Interface
- 3.Using the Menu Interface
- 4.Using the Command Line Interface (CLI)
- 5.Using the ProCurve Web Browser Interface
- 6.Switch Memory and Configuration
- 7.Interface Access and System Information
- 8.Configuring IP Addressing
- 9.Time Protocols
- 10.Port Status and Configuration
- Contents
- Overview
- Viewing Port Status and Configuring Port Parameters
- Menu: Port Status and Configuration
- CLI: Viewing Port Status and Configuring Port Parameters
- Customizing the Show Interfaces Command
- Viewing Port Utilization Statistics
- Viewing Transceiver Status
- Enabling or Disabling Ports and Configuring Port Mode
- Enabling or Disabling Flow Control
- Configuring a Broadcast Limit on the Switch
- Configuring ProCurve Auto-MDIX
- Web: Viewing Port Status and Configuring Port Parameters
- Using Friendly (Optional) Port Names
- 11.Power Over Ethernet (PoE) Operation
- 12.Port Trunking
- Contents
- Overview
- Port Trunk Features and Operation
- Trunk Configuration Methods
- Menu: Viewing and Configuring a Static Trunk Group
- CLI: Viewing and Configuring Port Trunk Groups
- Web: Viewing Existing Port Trunk Groups
- Trunk Group Operation Using LACP
- Trunk Group Operation Using the “Trunk” Option
- How the Switch Lists Trunk Data
- Outbound Traffic Distribution Across Trunked Links
- 13.Configuring for Network Management Applications
- Contents
- Using SNMP Tools To Manage the Switch
- LLDP (Link-Layer Discovery Protocol)
- Terminology
- General LLDP Operation
- Packet Boundaries in a Network Topology
- Configuration Options
- Options for Reading LLDP Information Collected by the Switch
- LLDP and LLDP-MED Standards Compatibility
- LLDP Operating Rules
- Configuring LLDP Operation
- LLDP-MED (Media-Endpoint-Discovery)
- Displaying Advertisement Data
- LLDP Operating Notes
- LLDP and CDP Data Management
- A.File Transfers
- B.Monitoring and Analyzing Switch Operation
- Contents
- Overview
- Status and Counters Data
- Menu Access To Status and Counters
- General System Information
- Task Monitor—Collecting Processor Data
- Switch Management Address Information
- Port Status
- Viewing Port and Trunk Group Statistics and Flow Control Status
- Viewing the Switch’s MAC Address Tables
- Spanning Tree Protocol (MSTP) Information
- Internet Group Management Protocol (IGMP) Status
- VLAN Information
- Web Browser Interface Status Information
- Interface Monitoring Features
- Locating a Device
- C.Troubleshooting
- Contents
- Overview
- Troubleshooting Approaches
- Browser or Telnet Access Problems
- Unusual Network Activity
- General Problems
- 802.1Q Prioritization Problems
- IGMP-Related Problems
- LACP-Related Problems
- Port-Based Access Control (802.1X)-Related Problems
- QoS-Related Problems
- Radius-Related Problems
- Spanning-Tree Protocol (MSTP) and Fast-Uplink Problems
- SSH-Related Problems
- TACACS-Related Problems
- TimeP, SNTP, or Gateway Problems
- VLAN-Related Problems
- Fan Failure
- Using the Event Log for Troubleshooting Switch Problems
- Debug/Syslog Operation
- Debug/Syslog Messaging
- Debug/Syslog Destination Devices
- Debug/Syslog Configuration Commands
- Configuring Debug/Syslog Operation
- Debug Command
- Logging Command
- Adding a Description for a Syslog Server
- Adding a Priority Description
- Configuring the Severity Level for Event Log Messages Sent to a Syslog Server
- Operating Notes for Debug and Syslog
- Diagnostic Tools
- Viewing Switch Configuration and Operation
- Restoring the Factory-Default Configuration
- Restoring a Flash Image
- DNS Resolver
- D.MAC Address Management
- E.Daylight Savings Time on ProCurve Switches
- F.Power-Saving Features
- Index
- Notices & Publication Data

How Is Power Allocation Prioritized? . . . . . . . . . . . . . . . . . . . . . . 11-5
Configuring PoE Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6
Disabling or Re-Enabling PoE Port Operation . . . . . . . . . . . . . . . . . . 11-6
Enabling Support for Pre-Standard Devices . . . . . . . . . . . . . . . . . . . . 11-6
Configuring the PoE Port Priority Level . . . . . . . . . . . . . . . . . . . . . . . 11-8
Controlling PoE Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-9
Manually Configuring PoE Power Levels . . . . . . . . . . . . . . . . . . . . . . 11-10
Changing the Threshold for Generating a Power Notice . . . . . . . . . 11-12
Cycling Power on a Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13
PoE/PoE+ Allocation Using LLDP Information . . . . . . . . . . . . . . . . 11-14
LLDP with PoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-14
Viewing PoE Configuration and Status . . . . . . . . . . . . . . . . . . . . . . . 11-15
Displaying the Switch’s Global PoE Power Status . . . . . . . . . . . . . . 11-15
Displaying an Overview of PoE Status on All Ports . . . . . . . . . . . . . 11-16
Displaying the PoE Status on Specific Ports . . . . . . . . . . . . . . . . . . . 11-18
Planning and Implementing a PoE Configuration . . . . . . . . . . . . . . 11-20
Assigning PoE Ports to VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-20
Applying Security Features to PoE Configurations . . . . . . . . . . . . . 11-20
PoE Event Log Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-21
12 Port Trunking
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2
Port Trunk Features and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-4
Trunk Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-4
Menu: Viewing and Configuring a Static Trunk Group . . . . . . . . . . 12-9
CLI: Viewing and Configuring Port Trunk Groups . . . . . . . . . . . . . 12-11
Using the CLI To View Port Trunks . . . . . . . . . . . . . . . . . . . . . . . . . . 12-11
Using the CLI To Configure a Static or Dynamic Trunk Group . . . 12-14
Web: Viewing Existing Port Trunk Groups . . . . . . . . . . . . . . . . . . . . 12-17
Trunk Group Operation Using LACP . . . . . . . . . . . . . . . . . . . . . . . . . 12-18
Default Port Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-21
LACP Notes and Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-22
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