Trunking question

Hi

I am doing a lab exercise in preparation for the BCMSN.

There is a 2950 access switch connected to two 3550 distribution switches.

On the 2950, fa0/1 and fa0/2 are connected to 3550A and fa0/3 and fa0/4

are connected to 3550B.

At the moment, ports fa0/1 - 4 on the 2950 are in VLAN99.

The instructions are to -

i) Assign fa0/1 - 4 back to VLAN1. ii) Turn on trunking on the ports connecting the 2950 and 3550's and use 802.1Q trunking.

My response was;

i)

2950#conf t 2950(config)# interface range fa0/1 - 4 2950(config-if-range)# switchport access vlan 1 2950(config-if-range)# switchport mode trunk 2950(config-if-range)# switchport trunk encap dot1q

and then

3550A#conf t 3550A(config)# interface range fa0/1 - 2 3550A(config-if-range)# switchport mode trunk 3550A(config-if-range)# switchport trunk encap dot1q

and also

3550B#conf t 3550B(config)# interface range fa0/1 - 2 3550B(config-if-range)# switchport mode trunk 3550B(config-if-range)# switchport trunk encap dot1q

The lab, however, states that it should be;

2950#conf t 2950(config)# interface range fa0/1 - 4 2950(config-if-range)# switchport access vlan 1 2950(config-if-range)# switchport mode trunk 2950(config-if-range)# switchport nonegotiate

and then on both switches;

3550#conf t 3550(config)# interface range fa0/1 - 2 3550(config-if-range)# switchport mode trunk 3550(config-if-range)# switchport nonegotiate 3550(config-if-range)# switchport trunk encap dot1q

Which is correct, or is this just two ways of doing the same thing?

Thx