Trunk between 2950 and 4500 1

[damocles13]

I have a Cisco 2950 and a Cisco 4506 and I cannot get the trunk between them to work. As I am new to this please do not hesitate to ask the simple questions!
The config on the 2950 port:
interface FastEthernet0/1
description Trunk to CoreSwitch
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
speed 100
duplex full
The config on the 4506:
interface FastEthernet6/29
description Trunk to sw-scc-mrk-01
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport mode trunk
speed 100
duplex full
Any help is appreciated!
Thanks,Red

The revolution will not be televised!

 

[Cluebird]

Config commands look good except the 2950 can only do dot1q trunking so the command "switchport trunk encapsulation dot1q" will be rejected. Just remove that and copy and paste your commands in and life should be good.

Since you are hard-coding the speed and duplex, you'll have to be sure you have a cross-over patch cable between the switches.

 

[damocles13]

Cluebird, thanks a bunch.
It was the Cross Over that got me.
Its always the simple stuff!!!
Thank you , again.

The revolution will not be televised!

 

[meneerB]

Cluebird: I think you are talking about auto-mdix ports.
that has nothing to do with hardcoding speed/duplex?!

so a crosscable should work if or if not you are on 100full or auto neg. port

 

[Cluebird]

meneerB,

If you hard-code speed and duplex, you disable the auto-mdix as well (at least on the 3560s I have).

 

[ISPKing]

True Cluebird, but on the lower end switches there is no auto-mdix. Hard to believe i know. That was one of my biggest shocks when starting with cisco. MY crappy ass 10 year old dlink has auto-mdix and your telling me this 3k$ 3550 doesn't>....

CCNP

 

[Cluebird]

Isn't that amazing? I guess Cisco just likes us to pay attention to the cables? I've noticed my 2960s do support auto-MDIX but my older 2950s don't. I don't have 4500s to play with so I can't speak from experience with that platform, but I would expect all the high-end switches to auto-MDIX.

I always tell students that Cisco builds in lots of job security with all these different "features" between platforms.

I'm just waiting to see if the QoS implementation between switches and routers will ever be "standardized"?

 

[meneerB]

I didn't know that, thanks Cluebird