- 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

Troubleshooting
Using the Event Log for Troubleshooting Switch Problems
stp Multiple-instance spanning tree protocol/MSTP (802.1s):
Ensures that only one active path exists between any two
nodes in a group of VLANs in the network. MSTP operation is
designed to avoid loops and broadcast storms of duplicate
messages that can bring down the network.
Advanced Traffic Management Guide
system Switch management, including system configuration, switch
bootup, activation of boot ROM image, memory buffers, traffic
and security filters.
System messages also include events from Management
interfaces (menu, CLI, web browser, ProCurve Manager) used
to reconfigure the switch and monitor switch status and
performance.
Management and Configuration Guide
Access Security Guide
tacacs TACACS+ authentication: A central server is used to control
access to the switches (and other TACACS-aware devices) in
the network through a switch’s console port (local access) or
Telnet (remote access).
Access Security Guide
tcp Transmission Control Protocol: A transport protocol that runs
on IP and is used to set up connections.
Advanced Traffic Management Guide
telnet Session established on the switch from a remote device
through the Telnet virtual terminal protocol.
Management and Configuration Guide
tftp Trivial File Transfer Protocol: Supports the download of files to
the switch from a TFTP network server.
Management and Configuration Guide
timep Time Protocol: Synchronizes and ensures a uniform time
among interoperating devices.
Management and Configuration Guide
update Updates (TFTP or serial) to ProCurve software and updates to
running-config and start-up config files
Management and Configuration Guide
vlan Static 802.1Q VLAN operations, including port-and protocol-
based configurations that group users by logical function
instead of physical location
A port -based VLAN creates a layer-2 broadcast domain
comprised of member ports that bridge IPv4 traffic among
themselves.
VLAN messages include events from Management interfaces
(menu, CLI, web browser, ProCurve Manager) used to
reconfigure the switch and monitor switch status and
performance.
Advanced Traffic Management Guide
xmodem Xmodem: Binary transfer feature that supports the download
of software files from a PC or Unix workstation.
Management and Configuration Guide
System
Module
Description
Documented in ProCurve Hardware/
Software guide
C-27










