Maintenance Commands; Introduction; System Maintenance; Forwarding Database Maintenance - HP GbE2c - Blc Layer 2/3 Fiber SFP Option Cli Reference Manual

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
debug debug-flags

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
show mac-address-table address
{<MAC address>}
show mac-address-table port
{<port number>}
show mac-address-table vlan
{<1-4095>}
show mac-address-table
clear mac-address-table
Usage
Sets the flags that are used for debugging purposes by HP technical support.
Command mode: All except User EXEC
Usage
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:
xxxxxxxxxxxx format (for example:
Command mode: All except User EXEC
Displays all FDB entries for a particular port.
Command mode: All except User EXEC
Displays all FDB entries on a single VLAN.
Command mode: All except User EXEC
Displays all entries in the Forwarding Database.
Command mode: All except User EXEC
Clears the entire Forwarding Database from switch memory, then adds the
static entries to the Forwarding Database.
Command mode: All except User EXEC
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