Media for Best Ethernet switch device for trunking support??

Best Ethernet switch device for trunking support??

Hi,

I am in embedded R&D, and am looking for a Fast Ethernet switch with really good trunking (link aggregation, LAG, etc.) support. If I have a trunk group with 3 ports, than this is what I am looking for:

1) Auto-failover to other ports in the trunk group if one port fails. 2) A trunking algorithm that can handle if one port of the trunk group maxes out its bandwidth and should not be assigned new connections. Let the other ports catch up a little bit and don't throw away any data.

3) Support for interfacing to Cisco's EtherChannel trunking.

4) Something else besides a MAC based trunking algorithm, to be able to more randomly distribute 2-way connections between ports in the trunk groups.

I have used a Broadcom part in a previous design that handles number

1, but not the others. Now I am looking at Zarlink devices (ZL504xx family), but they don't handle 1 internally (I have to reconfigure the trunk group after I get an interrupt, but I'll lose data).

This is for a VoIP application.

ANy suggestions appreciated!

Greg in MA