10-19-2013 02:16 PM - edited 03-07-2019 04:07 PM
Hello,
Will the trunk come up if the port on one switch is hard coded as trunk with non-negotiated option (no DTP frames)with another switch having the interface configured as trunk with negotiated (DTP frames enabled)
Thanks
10-19-2013 02:40 PM
Hi,
If both ports are hardcoded as trunks, just one has DTP active and the other has DTP deactivated, the trunk will come up.
Best regards,
Peter
10-20-2013 08:58 PM
Hi Peter,
Thanks for the reply.
If DTP packets are not used in bringing up a trunk then what exactly is their use i.e. if i have trunk in non negotiate on one side and dynamic auto on other, i assume that trunk will never come up.
10-21-2013 02:07 AM
DTP packets are used to negotiate a trunk but by using the nonegotiate command, you are telling the switch port to no longer send the DTP packets, meaning you have to statically configure a trunk port if you want one.
In my experience if you want a trunk, staitcally configure it at both ends.
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