network cisco ccna gns3 certification arteq

network cisco ccna gns3 certification arteq
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Sunday, November 6, 2011

junk in the trunk...

sw2950_02(config)#int fa0/2
sw2950_02(config-if)#switchport nonegotiate
first, DTP (dynamic trunking protocol) is cisco proprietary and will not work with gray market switches...  use nonegotiate in a mixed environment... this disables DTP, will only become a trunk with ON or NONEGOTIATE ports, and  port ranges are not allowed with this command

sw2950_02(config)#int fa0/2
sw2950_02(config-if)#sw mode trunk
trunking is on... DTP signals are sent to the other connected port to initiate trunking if it is ON, AUTO, or DESIRABLE

sw2950_02(config-if)#sw mode dynamic desirable
the port will become a trunk after detecting DTP signals of  ON, AUTO or DESIRABLE from the connected port

sw2950_02(config-if)#sw mod dyn auto
the port will become a trunk if the other port is ON or DESIRABLE

sw2950_02(config-if)#no sw mod trunk
trunking and DTP are disabled and this is the desired state for access ports; no dynamic establishments can occur

today's post was brought to you by Michael the network cat...

Guster the love muffin...

 and Craze, the queen of the domain...

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