[c-nsp] Cisco trunk port startup delay

A.L.M.Buxey at lboro.ac.uk A.L.M.Buxey at lboro.ac.uk
Wed Jul 17 06:40:56 EDT 2013


> > * I am definitely not disabling spanning-tree. I have enabled 'portfast
> > trunk' on the port which reduced the port uptime significantly.
> > * Disabling a lot of negotiation protocols improves port initialization
> > time as well

spanning-tree portfast trunk
switchport nonegotiate
(that stops negotiation of type of port eg access/trunk/etherchannel etc)

then tweak speed and duplex to your requirements (speed/duplex negotiation causes

carrier-delay msec 0

(that will mean none of the usual things occur and port can go live - use with care)


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