Friend, eh?!? Oh the humanity... ;-}
Well, you could set a static entry but why? The ARP table is designed to be
dynamic so that it doesn't grow to a large size and really create additional
overhead. Remember, before ARP does its broadcast search, the switch will
check the ARP cache. The bad news: the ARP cache is parsed from the top
down. So if the table becomes large, static entries may actually slow
things down. I wouldn't get into the habit of adding static entries, but if
"his" little heart desires it so badly...
BTW - removing the router's entry from the ARP table will not disconnect it
from the switch. All that it really does is force the switch to broadcast
for the MAC address of the router if it's not in the table and that really
doesn't take much time at all. If a disconnect is really happening, then
you...I mean he...has other issues to contend with.
Rik
-----Original Message-----
From: Joseph Cheng [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 29, 2001 3:23 AM
To: [EMAIL PROTECTED]
Subject: Help on Cisco 4000 Switch [7:6191]
Hi,
My friend has a question on the Cisco 4000 switch, can
anyone please help? Thanks in advance.
==
When a Cisco 1720 is hookup to the switch, if there is
no traffice from the 1720, it will be disconnected
from the Cisco catalyte 4000 switch after a preset 300
seconds.
The mac-address of 1720 will be disappeared from the
Cisco 4000 switch arp table.
Is this OK to use "set arp static-address" to
permantly write the 1720 mac-address and IP into the
4000 switch arp table?
==
Thanks,
JC
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