HP GbE2c - Blc Layer 2/3 Fiber SFP Option Cli Reference Guide

Maintenance Commands 147
Maintenance Commands
Introduction
The Maintenance commands are used for debugging purposes, enabling you to generate a technical support dump
of the critical state information in the switch, and to clear entries in the Forwarding Database and the Address
Resolution Protocol (ARP) and routing tables. These commands are available only from an administrator login.
Dump information contains internal switch state data that is written to flash memory on the switch after any one of the
following occurs:
• The switch administrator forces a switch panic. The panic option causes the switch to dump state information to
flash memory, and then causes the switch to reboot.
• The switch administrator enters the switch reset key combination (Ctrl-Shift-6) on a device that is attached
to the console port.
• The switch detects a hardware or software problem that requires a reboot.
The following sections provide detailed information and commands.
System maintenance
The System Maintenance commands are reserved for use by HP technical support. The options are used to perform
system debugging.
The following table describes the System Maintenance commands.
Table 178 System Maintenance commands
Command Usage
debug debug-flags
Sets the flags that are used for debugging purposes by HP technical support.
Command mode: All except User EXEC
Forwarding Database maintenance
The Forwarding Database (FDB) Manipulation commands can be used to view information and to delete a MAC
address from the Forwarding Database or clear the entire Forwarding Database. This is helpful in identifying
problems associated with MAC address learning and packet forwarding decisions.
The following table describes the FDB Manipulation commands.
Table 179 FDB Manipulation commands
Command Usage
show mac-address-table address
{<MAC address>}
Displays a single database entry by its MAC address. You are prompted to
enter the MAC address of the device. Enter the MAC address using one of
the following:
• xx:xx:xx:xx:xx:xx format (for example: 08:00:20:12:34:56)
• xxxxxxxxxxxx format (for example: 080020123456).
Command mode: All except User EXEC
show mac-address-table port
{<port number>}
Displays all FDB entries for a particular port.
Command mode: All except User EXEC
show mac-address-table vlan
{<1-4095>}
Displays all FDB entries on a single VLAN.
Command mode: All except User EXEC
show mac-address-table
Displays all entries in the Forwarding Database.
Command mode: All except User EXEC
clear mac-address-table
Clears the entire Forwarding Database from switch memory, then adds the
static entries to the Forwarding Database.
Command mode: All except User EXEC

HP GbE2c - Blc Layer 2/3 Fiber SFP Option Specifications

General

Brand	HP
Model	GbE2c - Blc Layer 2/3 Fiber SFP Option
Category	Switch
Language	English