Re: VTP / DTP

From: Bogdan Sass (bogdan.sass@catc.ro)
Date: Sun Oct 05 2008 - 19:20:20 ART


nouman abbasi wrote:
> Hi,
> To block VTP Traffic on a switch is "VTP mode transparent" but how could
> I block DTP traffic on all ports of a single switch.
>
    Router(config-if)# switchport nonegotiate
> If I block DTP traffic then ports fa 0/10 and fa 0/11 are trunk-ports to
> other switch, Will this be affected.
>
    Not as long as the "switchport mode trunk" and "switchport trunk
encapsulation" are configured manually on both sides.

> After enabling DTP traffic on all ports of SW1 ; assume SW1 fa0/20 is
> connected to R1 fa 0/0 ;
> if I dont need to get any routes updates on R1 fa0/0 do I need to add passive
> interface statement or no???
>
    I do not see the connection between DTP (layer 2 negotiation) and
routing updates (layer 3). The DTP configuration is independent from the
routing protocol configuration.

-- 
Bogdan Sass
CCAI,CCSP,JNCIA-ER,CCIE #22221 (RS)
Information Systems Security Professional
"Curiosity was framed - ignorance killed the cat"

Blogs and organic groups at http://www.ccie.net



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