Question on configuring 田ar

From: PANDI MOORTHY (moorthypandi@gmail.com)
Date: Tue Dec 25 2007 - 13:01:24 ART


Hi,

Question on configuring "carrier-delay" on LAN interface

I have two router A & B on the same LAN forming ISIS neighbor.

The question is to ensure convergence time is as fast as possible while link
down detection is also as fast a possible.

One way to improve the convergence is to set the hello timer to minimal "isis
hello-interval minimal "

To make the link down detection as fast as possible, can I configure the
"carrier-delay msec 0" on the LAN interface? Will it work?

Reading the Cisco documentation, it says this command applicable only to
serial interface.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hif_r/int_a1h.htm#wp1199046

But IOS still allow me to configure it on LAN interface

Rack1R2#sh run int fas 0/0

Building configuration...

Current configuration : 104 bytes

!

interface FastEthernet0/0

 no ip address

 *carrier-delay msec 0*

 duplex half

 no clns route-cache

end

Rack1R2#

Please advice

 Regards

Pandi



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