Is "nonegotiate" = do not negotiate speed and duplex or DTP?

[news2010a]

On a 3560 switchport below, my goal is to make this as "full duplex and speed 100". Since the connection is fiber, I don't see how I can get 100Mbps.

When I read the documentation, it is not clear whether "nonegotiate" is related to speed and auto or whether that is actually a way to stop DTP protocol on the interface thus avoiding trunking.

Am I right that I should do command "no negotiate"?

Gi0/26 myswitch connected trunk a-full a-1000 1000BaseLX SF P

myswitch#show run int g0/26

Building configuration...

Current configuration : 158 bytes

!

interface GigabitEthernet0/26

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 2-5

switchport mode trunk

end

[Edison Ortiz · Accepted solution]

Marlon,

You are referring to two different commands.

The speed 'nonegotiate' disables the link-negotiation protocol on the Gigabit Ethernet ports hence it speeds up the port opening process.

http://www.cisco.com/en/US/docs/ios/interface/command/reference/ir_s6.html#wp1017436

The switchport 'nonegotiate' disables the DTP process

http://www.cisco.com/en/US/docs/ios/interface/command/reference/ir_s7.html#wp1012629

HTH,

__

Edison.

[iyde]

If you need 100 Mbps on fibre, then you could buy FastEthernet SFP for both ends of the connection.

This ensures that you'll stay at 100 Mbps :-)

HTH