- 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

Configuring for Network Management Applications
LLDP (Link-Layer Discovery Protocol)
LLDP (Link-Layer Discovery Protocol)
To standardize device discovery on all ProCurve switches, LLDP will be
implemented while offering limited read-only support for CDP as documented
in this manual. For the latest information on your switch model, consult the
Release Notes (available on the ProCurve Networking web site). If LLDP has
not yet been implemented (or if you are running an older version of software),
consult a previous version of the Management and Configuration Guide for
device discovery details.
Table 13-2. LLDP and LLDP-MED Features
Feature Default Menu CLI Web
View the switch’s LLDP configuration n/a — page 13-42 —
Enable or disable LLDP on the switch Enabled — page 13-38 —
Change the transmit interval (refresh-interval) for 30 seconds — page 13-45 —
LLDP packets
Change the holdtime multiplier for LLDP Packets 4 seconds — page 13-38 —
(holdtime-multiplier x refresh-interval = time-to-live)
Change the delay interval between advertisements 2 seconds — page 13-46 —
Changing the reinitialization delay interval 2 seconds — page 13-47 —
Configuring SNMP notification support Disabled — page 13-48 —
Configuring transmit and receive modes tx_rx — page 13-49 —
Configuring basic LLDP per-port advertisement Enabled — page 13-50 —
content
Configuring port speed and duplex advertisements for Enabled — page 13-70 —
optional LLDP and mandatory LLDP-MED applications
Configuring topology change notification for LLDP- Enable — page 13-56 —
MED
Changing the fast-start duration for LLDP-MED 5 sec — page 13-58
Configuring LLDP-MED Advertising Enabled — page 13-50
Configuring LLDP-MED device location data None — page 13-68
Displaying Advertisement Data and Statistics n/a — page 13-72 —
LLDP (Link Layer Discovery Protocol): provides a standards-based
method for enabling the switches covered in this guide to advertise themselves
to adjacent devices and to learn about adjacent LLDP devices.
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