Configuring IP
December 2000 15 - 91
Displaying the Static ARP Table
To display the static ARP table instead of the ARP cache, use either of the following methods.
USING THE CLI
To display the static ARP table, enter the following command at any CLI level:
BigIron# show ip static-arp
Static ARP table size: 512, configurable from 512 to 1024
Index IP Address MAC Address Port
1 207.95.6.111 0800.093b.d210 1/1
3 207.95.6.123 0800.093b.d211 1/1
This example shows two static entries. Note that since you specify an entry’s index number when you create the
entry, it is possible for the range of index numbers to have gaps, as shown in this example.
NOTE: The entry number you assign to a static ARP entry is not related to the entry numbers in the ARP cache.
Syntax: show ip static-arp [ethernet <portnum> | mac-address <xxxx.xxxx.xxxx> [<mask>] |
<ip-addr> [<ip-mask>]] [<num>]
The ethernet <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 <xxxx.xxxx.xxxx> 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).
NOTE: The <ip-mask> parameter and <mask> parameter perform different operations. The <ip-mask>
parameter specifies the network mask for a specific IP address, whereas the <mask> parameter provides a filter
for displaying multiple MAC addresses that have specific values in common.
Type The type, which can be one of the following:
• Dynamic – The Layer 3 Switch learned the entry from an
incoming packet.
• Static – The Layer 3 Switch loaded the entry from the static ARP
table when the device for the entry was connected to the Layer 3
Switch.
Age The number of minutes the entry has remained unused. If this value
reaches the ARP aging period, the entry is removed from the cache.
To display the ARP aging period, see “Displaying Global IP
Configuration Information” on page 15-84. To change the ARP aging
interval, see “Changing the ARP Aging Period” on page 15-30.
Note: Static entries do not age out.
Port The port attached to the device the entry is for. For dynamic entries,
this is the port on which the entry was learned.
Table 15.12: Web Display of ARP Cache – Layer 3 Switch (Continued)
This Field... Displays...
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