You'd also need portfast.
 
On a "regular" link coming up without portfast enabled, you also need to
have the blocking timer in there (20 seconds) which makes a TOTAL link start
delay of 12 seconds impossible.
 
Other than blocking, yes, listening + learning gives the solution you have
there.
 
So it sounds like you already understand the technology.  So the point of
the question is?  Whose lab is it?
 


Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE-M
#153, JNCIS-ER, CISSP, et al.
CCSI/JNCI-M/JNCI-ER
VP - Technical Training - IPexpert, Inc.
IPexpert Sr. Technical Instructor

A Cisco Learning Partner - We Accept Learning Credits!

[EMAIL PROTECTED]

 

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  _____  

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Amit Singh
Sent: Thursday, January 10, 2008 1:16 AM
To: [email protected]
Subject: Re: [OSL | CCIE_RS] CCIE_RS Digest, Vol 24, Issue 4


Hi Team,

Here is one question that Iis confusing me :

Configure SW 1 Port fa 0/18 in vlan 26  so that the TOTAL link start delay
(till the port becomes forwarding) is 12 seconds ?

according to me the answer for this should be " spanning-tree vlan 26
forward-time 6 " .

What would be your answer? Any comments ?

-as 

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