From: CCIEBOB (cciebob@comcast.net)
Date: Fri Oct 21 2005 - 13:28:55 GMT-3
Also using the "show dtp interface X" command.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Thomwin Chen
Sent: Friday, October 21, 2005 11:22 AM
To: The Great Ryan; Cisco certification
Subject: Re: "switchport nonegotiate" & DTP traffic
Hi Ryan,
you can verify this using switchport int fa0/x switchport
you should see something like this :
Negotiation of trunking : On or Off
Example :
<before hardcoded to static access>
3550#show int fa0/5 swi
Name: Fa0/5
....
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
....
3550#conf t
Enter configuration commands, one per line. End with CNTL/Z.
<after hardcoded to static access>
3550(config)#int fa0/5
3550(config-if)#swi
3550(config-if)#switchport mode acc
3550(config-if)#do show int fa0/5 swi
Name: Fa0/5
....
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
....
3550(config-if)#
Rgds,
Thomwin
The Great Ryan <pv.ryan@gmail.com> wrote:
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
This archive was generated by hypermail 2.1.4 : Sun Nov 06 2005 - 22:00:52 GMT-3