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HP ProCurve 2650 User Manual

HP ProCurve 2650
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15-9
IP Routing Features
Configuring IP Parameters for Routing Switches
routers, including HP routing switches, can be configured to reply to ARP
requests from one network on behalf of devices on another network. See
Enabling Proxy ARP below.
Note If the routing switch receives an ARP request packet that it is unable to deliver
to the final destination because of the ARP timeout and no ARP response is
received (the routing switch knows of no route to the destination address),
the routing switch sends an ICMP Host Unreachable message to the source.
Enabling Proxy ARP
Proxy ARP allows a routing switch to answer ARP requests from devices on
one network on behalf of devices in another network. Since ARP requests are
MAC-layer broadcasts, they reach only the devices that are directly connected
to the sender of the ARP request. Thus, ARP requests do not cross routers.
For example, if Proxy ARP is enabled on a routing switch connected to two
sub-nets, 10.10.10.0/24 and 20.20.20.0/24, the routing switch can respond to an
ARP request from 10.10.10.69 for the MAC address of the device with IP
address 20.20.20.69. In standard ARP, a request from a device in the 10.10.10.0/
24 sub-net cannot reach a device in the 20.20.20.0 sub-net if the sub-nets are
on different network cables, and thus is not answered.
An ARP request from one sub-net can reach another sub-net when both sub-
nets are on the same physical segment (Ethernet cable), since MAC-layer
broadcasts reach all the devices on the segment.
Proxy ARP is disabled by default on HP routing switches. To enable Proxy
ARP, enter the following commands from the VLAN context level in the CLI:
HPswitch(config)# vlan 1
HPswitch(vlan-1)# ip proxy-arp
To again disable IP proxy ARP, enter the following command:
HPswitch(vlan-1)# no ip proxy-arp
Syntax: [no] ip proxy-arp
!Software.book Page 9 Thursday, October 10, 2002 6:10 PM

Table of Contents

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HP ProCurve 2650 Specifications

General IconGeneral
Switching Capacity13.6 Gbps
Forwarding Rate10.1 Mpps
Layer2
Jumbo Frame SupportYes
Form FactorRack-mountable
VLAN SupportYes
Layer 3 RoutingNo
PoE SupportNo
FanlessNo
AltitudeUp to 3, 000 meters
ManagementCLI, SNMP
Operating Temperature0°C to 50°C
Storage Temperature-40°C to 70°C
Humidity15% to 95% non-condensing

Summary

Getting Started

Introduction

Introduces the guide and supported switches for HP Procurve Switch 2650 and 6108.

Conventions

Explains text and command syntax conventions used throughout the guide.

Command Syntax Statements

Details conventions for command syntax, including special characters and formatting.

Related Publications

Lists other relevant HP Procurve documentation for switches.

Getting Documentation From the Web

Provides instructions on how to download manuals from the HP Procurve website.

Sources for More Information

Guides users to online help and other resources for switch information.

Need Only a Quick Start?

Offers a quick start guide for basic IP addressing and switch setup.

1 Selecting a Management Interface

Overview

Introduces management interfaces for HP Procurve Switches 2650 and 6108.

Understanding Management Interfaces

Explains the different management interfaces: Menu, CLI, Web Browser, and HP TopTools.

Advantages of Using the Menu Interface

Details the benefits of using the menu interface for switch management.

Advantages of Using the CLI

Highlights the benefits of using the Command Line Interface for comprehensive switch management.

Advantages of Using the HP Web Browser Interface

Lists the advantages of using the web browser interface for switch management.

Advantages of Using HP TopTools for Hubs & Switches

Explains the benefits of using HP TopTools for network management.

2 Using the Menu Interface

Overview

Describes the features and capabilities of the switch's menu interface.

Starting and Ending a Menu Session

Provides instructions on how to access and terminate a menu interface session.

Main Menu Features

Lists and describes the main features accessible from the menu interface.

Screen Structure and Navigation

Explains the structure of menu interface screens and navigation methods.

Rebooting the Switch

Details how to reboot the switch using the menu interface, including activation of changes.

Menu Features List

Provides a comprehensive list of features available through the menu interface.

Where To Go From Here

Directs users to other sections for detailed information on menu interface features.

3 Using the Command Line Interface (CLI)

Overview

Introduces the CLI as a text-based interface for switch configuration and monitoring.

Accessing the CLI

Explains methods to access the Command Line Interface via console or Telnet.

Using the CLI

Describes privilege levels and basic CLI operation for switch management.

Privilege Levels at Logon

Explains the different privilege levels and their impact on CLI access.

Privilege Level Operation

Details how privilege levels control access and operations within the CLI.

How To Move Between Levels

Instructs on navigating between different privilege levels in the CLI.

Listing Commands and Command Options

Shows how to list available commands and their options using the CLI.

Displaying CLI "Help"

Explains how to access context-sensitive help for commands and parameters.

Configuration Commands and the Context Configuration Modes

Covers using global and context modes for executing configuration commands.

CLI Control and Editing

Provides information on keystrokes and editing features within the CLI.

4 Using the HP Web Browser Interface

Overview

Introduces the web browser interface for switch access and management.

General Features

Lists the key features available through the web browser interface.

Starting an HP Web Browser Interface Session with the Switch

Explains how to initiate a web browser session with the switch.

Tasks for Your First HP Web Browser Interface Session

Guides users through initial setup tasks for the web interface.

Creating Usernames and Passwords in the Browser Interface

Details how to set up user accounts and passwords for security.

Online Help for the HP Web Browser Interface

Explains how to access built-in help within the web interface.

Support/Mgmt URLs Feature

Describes how to configure URLs for support and management access.

Status Reporting Features

Covers how to view status information like overview, port utilization, and alerts.

The Overview Window

Describes the main status overview screen and its components.

The Port Utilization and Status Displays

Explains how to interpret port utilization graphs and status indicators.

The Alert Log

Details how to view and understand network alerts and event messages.

The Status Bar

Describes the elements displayed in the web interface status bar.

Setting Fault Detection Policy

Explains how to configure the fault detection policy for alert generation.

5 Switch Memory and Configuration

Overview

Introduces how the switch manages configuration files and memory.

Overview of Configuration File Management

Explains the running-config and startup-config files.

Using the CLI To Implement Configuration Changes

Details how to make and save configuration changes using the CLI.

Using the Menu and Web Browser Interfaces To Implement Configuration Changes

Explains how menu and web interfaces implement configuration changes.

Using Primary and Secondary Flash Image Options

Covers managing system images stored in primary and secondary flash.

Local OS Replacement and Removal

Describes commands for managing OS flash images on the switch.

Rebooting the Switch

Explains the boot and reload commands for restarting the switch.

6 Interface Access, System Information, and Friendly Port Names

Overview

Introduces chapter topics: interface access, system info, and port names.

Interface Access: Console/Serial Link, Web, and Inbound Telnet

Describes how to access the switch via console, web, and Telnet.

System Information

Covers configuring system parameters like name, contact, and location.

Using Friendly (Optional) Port Names

Explains how to assign alphanumeric names to switch ports for easier identification.

7 Configuring IP Addressing

Overview

Introduces IP addressing configuration for managing the switch.

IP Configuration

Details features for configuring IP addresses, subnet masks, and gateways.

Just Want a Quick Start with IP Addressing?

Provides a quick start guide for basic IP addressing configuration.

IP Addressing with Multiple VLANs

Explains IP addressing considerations for multiple VLAN configurations.

Menu: Configuring IP Address, Gateway, and Time-To-Live (TTL)

Guides on configuring IP parameters using the menu interface.

CLI: Configuring IP Address, Gateway, and Time-To-Live (TTL)

Details IP parameter configuration using the Command Line Interface.

Web: Configuring IP Addressing

Covers configuring IP addressing via the web browser interface.

How IP Addressing Affects Switch Operation

Explains the impact of IP addressing on switch functionality.

IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads

Describes retaining VLAN-1 IP settings during configuration file transfers.

Globally Assigned IP Network Addresses

Provides information on obtaining globally administered IP addresses.

8 Time Protocols

Overview

Introduces time synchronization protocols like SNTP and TimeP.

SNTP: Viewing, Selecting, and Configuring

Details how to view, select, and configure SNTP settings.

TimeP: Viewing, Selecting, and Configuring

Explains how to view, select, and configure TimeP settings.

SNTP Unicast Time Polling with Multiple SNTP Servers

Covers configuring unicast time polling with multiple SNTP servers.

SNTP Messages in the Event Log

Describes how SNTP messages are recorded in the event log.

9 Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority

Overview

Introduces optimizing traffic flow via port controls, trunking, and priority.

Viewing Port Status and Configuring Port Parameters

Covers displaying and configuring port status and parameters.

Port Trunking

Explains how to configure port trunking for increased bandwidth.

Trunk Configuration Methods

Details methods for configuring trunk groups: LACP, Trunk, FEC.

Configuring Port-Based Priority for Incoming Packets

Describes prioritizing incoming traffic based on port settings.

10 Configuring for Network Management Applications

Overview

Introduces SNMP and other network management tools for switch management.

Using SNMP Tools To Manage the Switch

Explains SNMP tool usage like HP TopTools for managing the switch.

SNMP Management Features

Lists the SNMP features supported by the switch.

Configuring for SNMP Access to the Switch

Guides on configuring SNMP access settings.

SNMP Communities

Details how to configure SNMP communities for access control.

Trap Receivers and Authentication Traps

Explains configuring trap receivers and authentication traps for SNMP.

Advanced Management: RMON

Covers using RMON for advanced network monitoring.

CDP

Introduces Cisco Discovery Protocol (CDP) for network device discovery.

General CDP Operation

Explains how CDP stores and provides information about adjacent devices.

Incoming CDP Packets

Describes how the switch processes incoming CDP packets.

Configuring CDP on the Switch

Guides on enabling, disabling, and configuring CDP globally and per-port.

11 Port-Based Virtual LANs (VLANs) and GVRP

Overview

Introduces VLANs and GVRP for network segmentation and traffic management.

Port-Based Virtual LANs (Static VLANs)

Details how to configure static VLANs for network segmentation.

Overview of Using VLANs

Explains the concept of VLANs and their support on HP Procurve switches.

The Secure Management VLAN

Describes how to configure a secure, isolated network for management.

Effect of VLANs on Other Switch Features

Discusses how VLANs interact with other switch features like STP.

VLAN Restrictions

Outlines limitations and requirements for VLAN configuration.

GVRP

Introduces GARP VLAN Registration Protocol for dynamic VLAN management.

General Operation

Explains the general operation of GVRP in dynamic VLAN creation.

Per-Port Options for Handling GVRP “Unknown VLANs”

Details per-port options for managing unknown VLANs in GVRP.

GVRP and VLAN Access Control

Covers GVRP's role in controlling VLAN access.

Planning for GVRP Operation

Provides steps for planning GVRP implementation.

Configuring GVRP On a Switch

Guides on viewing and configuring GVRP settings on the switch.

12 Multimedia Traffic Control with IP Multicast (IGMP)

Overview

Introduces IGMP for managing multimedia traffic and reducing bandwidth usage.

General Operation and Features

Covers IGMP features and basic operation for IP multicast control.

IGMP Terms

Defines key terms related to IGMP operation.

IGMP Operating Features

Details enhancements like high priority forwarding and port control for IGMP.

CLI: Configuring and Displaying IGMP

Guides on configuring and viewing IGMP settings using the CLI.

Web: Enabling or Disabling IGMP

Explains how to enable or disable IGMP via the web interface.

How IGMP Operates

Explains the IGMP protocol, including query, report, and leave messages.

Operation With or Without IP Addressing

Discusses IGMP operation on VLANs without IP addresses.

Automatic Fast-Leave IGMP

Details the automatic fast-leave feature to reduce multicast traffic.

Forced Fast-Leave IGMP

Explains forced fast-leave for managing traffic to multiple end nodes.

Configuring Per-Port Forced Fast-Leave IGMP

Guides on configuring forced fast-leave IGMP on individual ports.

Using the Switch as Querier

Covers the switch's role as an IGMP querier.

Excluding Well-Known or Reserved Multicast Addresses from IP Multicast Filtering

Explains how to exclude specific multicast addresses from filtering.

13 802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP)

Overview

Introduces STP and RSTP, explaining their purpose in preventing network loops.

How Spanning Tree Operates

Details how spanning tree protocol functions to ensure single active paths.

Configuring Rapid Reconfiguration Spanning Tree (RSTP)

Guides on configuring RSTP for faster network reconvergence.

802.1p Spanning-Tree Protocol (STP)

Describes configuring the older 802.1d STP protocol.

STP Fast Mode

Explains STP Fast Mode for overcoming server access failures.

Fast-Uplink Spanning Tree Protocol (STP)

Covers Fast-Uplink STP for improving convergence time with redundant uplinks.

14 HP Procurve Stack Management

Overview

Introduces HP Procurve stack management for simplifying network administration.

Operation

Describes the general operation of stacking switches.

Which Devices Support Stacking?

Lists HP devices that support stacking features.

Components of HP Procurve Stack Management

Defines key components like Commander, Candidate, and Member switches.

General Stacking Operation

Explains how switches join and operate within a stack.

Operating Rules for Stacking

Outlines general rules and requirements for implementing stacking.

Configuring Stack Management

Guides on the process of configuring and bringing up a switch stack.

Overview of Configuring and Bringing Up a Stack

Provides an overview of the stack creation process.

Menu: View Stack Status and Configure Stacking

Details how to view stack status and configure stacking via the menu interface.

Using the Commander To Manage The Stack

Explains how the Commander switch manages stack members.

Monitoring Stack Status

Covers viewing the status of individual switches and the entire stack.

CLI: View Stack Status and Configure Stacking

Guides on using CLI commands for stack management and status.

SNMP Community Operation in a Stack

Explains how SNMP communities work within a stack environment.

CLI: Disable or Re-Enable Stacking

Details how to enable or disable stacking using CLI commands.

15 IP Routing Features

Overview of IP Routing

Introduces IP routing concepts and static routing capabilities.

IP Interfaces

Explains how IP addresses are associated with VLAN interfaces.

IP Tables and Caches

Describes ARP cache, IP route table, and IP forwarding cache.

IP Global Parameters for Routing Switches

Covers global parameters affecting IP routing behavior.

IP Interface Parameters for Routing Switches

Details interface-level IP parameters for routing switches.

Configuring IP Parameters for Routing Switches

Guides on configuring IP addresses, ARP, and forwarding parameters.

Configuring Static IP Routes

Explains how to add and manage static IP routes for network traffic.

Configuring IRDP

Details the ICMP Router Discovery Protocol configuration.

Configuring DHCP Relay

Covers setting up the switch as a DHCP relay agent.

A File Transfers

Overview

Introduces features for downloading software and configuration files.

Downloading Switch Software

Guides on downloading new switch software from HP.

Transferring Switch Configurations

Explains how to copy configuration files to/from a remote host.

Copying Diagnostic Data to a Remote Host, PC, or Unix Workstation

Details copying diagnostic data like event logs and crash data.

B Monitoring and Analyzing Switch Operation

Overview

Introduces tools for monitoring, analyzing, and troubleshooting switch operation.

Status and Counters Data

Describes accessing status and counter information via console and web interface.

Menu Access To Status and Counters

Guides on accessing status and counters menus.

General System Information

Covers displaying general switch information and resource usage.

Switch Management Address Information

Explains viewing management addresses for VLANs and the switch.

Port Status

Details how to view the operational status of individual switch ports.

Viewing Port and Trunk Group Statistics and Flow Control Status

Explains viewing traffic patterns and flow control status.

Viewing the Switch’s MAC Address Tables

Covers viewing MAC address tables for VLANs and specific ports.

Spanning Tree Protocol (STP) Information

Describes how to view STP configuration and status.

Internet Group Management Protocol (IGMP) Status

Explains how to display IGMP status information.

VLAN Information

Covers viewing VLAN status, names, and port assignments.

Web Browser Interface Status Information

Describes the status overview screen in the web interface.

Port and Static Trunk Monitoring Features

Introduces features for monitoring ports and static trunks.

C Troubleshooting

Overview

Introduces systematic methods for diagnosing switch issues.

Troubleshooting Approaches

Outlines systematic approaches to diagnosing switch issues.

Browser or Telnet Access Problems

Addresses issues with accessing the switch via web browser or Telnet.

Unusual Network Activity

Covers problems related to slow networks, loops, and duplicate IP addresses.

CDP Problems

Discusses troubleshooting issues related to the Cisco Discovery Protocol.

IGMP-Related Problems

Covers problems with IP multicast traffic and IGMP operation.

LACP-Related Problems

Addresses issues related to Link Aggregation Control Protocol.

Port-Based Access Control (802.1x)-Related Problems

Troubleshoots issues with 802.1x port-based access control.

Radius-Related Problems

Covers problems related to RADIUS authentication requests.

Spanning-Tree Protocol (STP) and Fast-Uplink Problems

Discusses troubleshooting STP and Fast-Uplink related issues.

SSH-Related Problems

Addresses issues with Secure Shell (SSH) client access.

Stacking-Related Problems

Covers troubleshooting issues related to stack commander and member connectivity.

TACACS-Related Problems

Addresses problems with TACACS+ authentication and server communication.

TimeP, SNTP, or Gateway Problems

Discusses issues related to time synchronization and gateway configuration.

VLAN-Related Problems

Covers troubleshooting issues related to VLAN configuration and operation.

Using the Event Log To Identify Problem Sources

Explains how to use the event log to diagnose problems.

Diagnostic Tools

Introduces various diagnostic tools for troubleshooting.

Port Auto-Negotiation

Discusses troubleshooting port auto-negotiation failures.

Ping and Link Tests

Explains how to use ping and link tests for network diagnostics.

Displaying the Configuration File

Guides on viewing the switch's running and startup configuration files.

CLI Administrative and Troubleshooting Commands

Lists useful CLI commands for administration and troubleshooting.

Restoring the Factory-Default Configuration

Details methods to reset the switch to factory defaults.

Restoring a Flash Image

Explains how to recover from corrupted OS or empty flash states.

D MAC Address Management

Overview

Introduces how the switch assigns and manages MAC addresses.

Determining MAC Addresses

Covers methods for viewing MAC addresses on the switch.

Menu: Viewing the Switch’s MAC Addresses

Guides on viewing MAC addresses via the menu interface.

CLI: Viewing the Port and VLAN MAC Addresses

Explains how to view port and VLAN MAC addresses using the CLI.

E Daylight Savings Time on HP Procurve Switches

Alaska

Details DST rules for Alaska.

Canada and Continental US

Outlines DST rules for Canada and the Continental US.

Middle Europe and Portugal

Specifies DST rules for Middle Europe and Portugal.

Southern Hemisphere

Details DST rules for the Southern Hemisphere.

Western Europe

Outlines DST rules for Western Europe.

Menu Interface with “User-Defined” Daylight Time Rule Option

Shows how to configure custom DST settings using the menu interface.

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