Lucent Technologies CAJUN M770, User Manual

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Chapter 4 Managing Miscellaneous Commands
Cajun M770 ATM Switch User’s Guide 33
Managing the IP Cache
This section explains how to view the IP and route ARP cache of the M770 ATM
Switch and how to delete entries in the ARP cache.
Listing the contents of the Cajun M770 ATM Switch’s IP ARP cache
When listing the contents of the M770 ATM Switch’s IP ARP cache, the destination
IP and MAC addresses are shown. Also displayed is whether or not the ARP process
has completed for each destination IP address in the IP ARP cache.
An entry in the cache becomes aged out 30 minutes from the last time it was used.
To display the contents of the M770 ATM Switch’s IP ARP cache, use the
ip arpcache show
command.
Deleting an entry from the Cajun M770 ATM Switch’s IP ARP cache
When you delete an entry from a M770 ATM Switch IP ARP cache that still has IP
traffic on it, there will be a short delay while the ARP process finds the remote host
and the IP address is added to the ARP cache again.
Note: If an IP address is moved on the network then you should delete the entry in
the IP ARP cache to force the M770 ATM Switch to locate the new MAC address.
To delete an entry from the M770 ATM Switch’s IP ARP cache, use the
ip arpcache
delete
command.
Command:
M15-155s8:/>ip arpcache show
Output:
IP ARP cache entries
--------------------------------
192.32.220.5- 00.00.F6.1A.3C.62 (complete)
196.32.220.4- 00.00.F6.09.18.59 (complete)
196.32.220.8- 00.00.F6.09.44.3F (complete)
196.32.220.19- incomplete
Command:
M15-155s8:/>ip arpcache delete <address>
Parameters:
<address>
A standard IP address that is to be
removed from the ARP cache.