- 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
Time Protocols
TimeP: Viewing, Selecting, and Configuring
TimeP: Viewing, Selecting, and
Configuring
TimeP Feature Default Menu CLI Web
view the Timep time synchronization configuration n/a page 9-17 page 9-19 —
select Timep as the time synchronization method TIMEP page 9-15 pages 9-21 ff. —
disable time synchronization timep page 9-17 page 9-23 —
enable the Timep mode Disabled —
DHCP — page 9-17 page 9-21 —
manual — page 9-17 page 9-22 —
none/disabled — page 9-17 page 9-23 —
change the SNTP poll interval 720 minutes page 9-18 page 9-23 —
Table 9-2. Timep Parameters
SNTP Parameter Operation
Time Sync
Method
Used to select either TIMEP (the default), SNTP, or None as the time synchronization method.
Timep Mode
Disabled The Default. Timep does not operate, even if specified by the Menu interface Time Sync Method
parameter or the CLI timesync command.
DHCP When Timep is selected as the time synchronization method, the switch attempts to acquire a Timep
server IP address via DHCP. If the switch receives a server address, it polls the server for updates
according to the Timep poll interval. If the switch does not receive a Timep server IP address, it cannot
perform time synchronization updates.
Manual When Timep is selected as the time synchronization method, the switch attempts to poll the specified
server for updates according to the Timep poll interval. If the switch fails to receive updates from the
server, time synchronization updates do not occur.
Server
Address
Used only when the TimeP Mode is set to Manual. Specifies the IP address of the TimeP server that
the switch accesses for time synchronization updates. You can configure one server.
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