From: Geert Nijs (geert.nijs@simac.be)
Date: Mon Mar 13 2006 - 12:20:36 GMT-3
All,
I am studying for my recertification and although i do understand the
different trunking modes, there has been a large discussion between me
and
a colleague for the following specific situation:
First Situation
SW1 - Fa0/1
switchport mode trunk
switchport trunk mode isl
switchport trunk nonegotiate
SW2 - Fa0/1
swichport mode desirable
Is an ISL trunk being formed or NOT ?
Trick: nonegotiate makes the port NOT send any DTP packets.
I always thought that "desirable" NEEDED DTP packets from the other side
to form a trunk (so: ON, AUTO or DESIRABLE)
So i would say: NO, their is no trunk.
Several books and docs seem to suggest that in this case, a trunk will
be formed. I am unable to test right now.
So what will happen ?
regards,
Geert Nijs
Service Engineer
CCIE #13729 <http://www.cisco.com/en/US/learning/le3/ccie/index.html>
#############################################################################
########
Simac N.V. trades under the commercial name Simac ICT Belgium.
This e-mail and any attached files are confidential and may be legally
privileged.
If you are not the addressee, any disclosure, reproduction, copying,
distribution,
or other dissemination or use of this communication is strictly prohibited.
If you have received this transmission in error please notify Simac
immediately
and then delete this e-mail.
Simac has taken all reasonable precautions to avoid virusses in this email.
Simac does not accept liability for damage by virusses, for the correct and
complete
transmission of the information, nor for any delay or interruption of the
transmission,
nor for damages arising from the use of or reliance on the information.
All e-mail messages addressed to, received or sent by Simac or Simac employees
are deemed to be professional in nature. Accordingly, the sender or recipient
of
these messages agrees that they may be read by other Simac employees than the
official
recipient or sender in order to ensure the continuity of work-related
activities
and allow supervision thereof.
#############################################################################
########
This archive was generated by hypermail 2.1.4 : Sat Apr 01 2006 - 10:07:38 GMT-3