RE: "switchport nonegotiate" & DTP traffic

From: CCIEBOB (cciebob@comcast.net)
Date: Fri Oct 21 2005 - 13:07:42 GMT-3


Default port status - DTP on
Switchport mode access - DTP off
Switchport host - DTP off
Switchport nonegotiate - DTP off

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of The
Great Ryan
Sent: Friday, October 21, 2005 10:58 AM
To: Cisco certification
Subject: "switchport nonegotiate" & DTP traffic

Hi, Group,

it is not difficult to understand that "switchport nonegotiate" is
used to disable DTP traffic when the interface port is in trunk mode.
However, I found from Cisco Documentation that "switchport
nonegotiate" is valid when the interface switchport mode is access or
trunk.

As DTP is used to negotiate interfaces to become trunk, what is the
use of "switchport nonegotiate" when I already hardcode the interface
to become access port. Is DTP still being sent even when the interface
port is in access port?

i.e.
Rack2R7#s run int f0/25
Building configuration...

Current configuration : 82 bytes
!
interface FastEthernet0/25
 switchport mode access
 switchport nonegotiate
end

Ryan



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