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Displaying arp entries, Displaying the arp cache – Brocade BigIron RX Series Configuration Guide User Manual

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BigIron RX Series Configuration Guide

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Displaying IP information

7

Displaying ARP entries

You can display the ARP cache and the static ARP table. The ARP cache contains entries for other
devices attached to the device or the virtual interfaces on the device. The static ARP table contains
the user-configured ARP entries. An entry in the static ARP table enters the ARP cache when the
entry’s interface comes up.

The tables require separate display commands.

Displaying the ARP cache

To display the contents of the ARP cache, enter the following command at any CLI level.

Syntax: show arp [ve <decimal> | ethernet <slot/port> | mac-address <xxxx.xxxx.xxxx> [<mask>]

| <ip-addr> [<ip-mask>]] [<num>] [| begin <expression> | exclude <expression> |
include <expression>]

The ve <decimal> parameter lets you restrict the display to entries for a specific virtual interface.

The ethernet <slot>/<portnum> parameter lets you restrict the display to entries for a specific
port.

The mac-address <xxxx.xxxx.xxxx> parameter lets you restrict the display to entries for a specific
MAC address.

The <mask> parameter lets you specify a mask for the mac-address parameter, to
display entries for multiple MAC addresses. Specify the MAC address mask as “f”s and “0”s, where
“f”s are significant bits.

The <ip-addr> and <ip-mask> parameters let you restrict the display to entries for a specific IP
address and network mask. Specify the IP address masks in standard decimal mask format (for
example, 255.255.0.0).

BigIron RX># show logging

Syslog logging: enabled (0 messages dropped, 0 flushes, 0 overruns)

Buffer logging: level ACDMEINW, 3 messages logged

level code: A=alert C=critical D=debugging M=emergency E=error

I=informational N=notification W=warning

Static Log Buffer:

Dec 15 19:04:14:A:Fan 1, fan on right connector, failed

Dynamic Log Buffer (50 entries):

Dec 15 18:46:17:I:Interface ethernet Lab2, state up

Dec 15 18:45:15:I:Warm start

BigIron RX# show arp

Total number of ARP entries: 5

IP Address MAC Address Type Age Port

1 207.95.6.102 0800.5afc.ea21 Dynamic 0 6

2 207.95.6.18 00a0.24d2.04ed Dynamic 3 6

3 207.95.6.54 00a0.24ab.cd2b Dynamic 0 6

4 207.95.6.101 0800.207c.a7fa Dynamic 0 6

5 207.95.6.211 00c0.2638.ac9c Dynamic 0 6