Baystack Multilink trunk to Cisco Equipment

[tnphoneman]

Before you all tell me this is the wrong forum I know that. Just thought someone here might have some experience with this as I am not a Cisco programmer(thank God).

Here is what I have tried to do on several occasions and no one has been able to figure this one out that I can find. I have 2 Baystack 470's in a stack configuration and I have 2 fiber GBIC links to the customer's Cisco equipment. I have the 2 Baystack ports set up as a multi link trunk but data will not flow to or from the Cisco. If I unplug one of the fibers it works fine. I need to know what to tell the Cisco programmer to set up his/her end as.

I have always had to revert back to using a spanning tree group and this works fine but we want to increase the throughput/bandwidth.

Any Suggestions? I really need the Cisco terminology as it does not seem to be the same as Nortel(go figure).

 

[MagnaRGP]

Not 100% certain but I think the Nortel Multi-Link Trunking is proprietary.

You may want to explore LACP -- Link Aggregation (forget what C is...control?) Protocol. I believe that is a more open standard and perhaps Cisco will support that.

 

[tnphoneman]

Incase someone else needs this here is what I got back on another thread.

"I've hooked several different Cisco devices running Etherchannel to Nortel 425/5500/8600 devices running MLT without problems. Not all Cisco interfaces support being bonded into a team, for example some of the built-in router ethernet ports don't support it. As mentioned you may need to look at STG settings... here are enough IOS commands to get you started:

interface Port-channel1

interface FastEthernet1/0
channel-group 1 mode on

interface FastEthernet1/1
channel-group 1 mode on

If you need something other than the default VLAN 1 you'd add something like this to the interfaces above:
switchport access vlan 2