Thanks for your answer,

I do have 16 trunks of two ports each, coming from 4 servers (2 trunks each) and a clustered Netapp Filer with 8 trunks. This adds up to the 16 aggregated links I mentioned - but where does the 10GBE uplink fit in?

.Steffen

Absolutely right. Our problem is now, that we are not able to create more than 8 trunks for the stack. For trunks, the stack seems to behave like a single switch.
Could you please provide a config example for us? We really depend on having more than 8 trunks per stack here.

tia
Steffen

Ouch! Sorry for this. Let me be as clear as possible:
We are trying to set up 12 static LAGs on a stack of two PC 6224.
The list would be like this:

1g/1 + 2g/1 -> channel-group 1
1g/2 + 2g/2 -> channel-group 2
...
1g/12 + 2g/12 -> channel-group 12

So my question would be: is this at all possible or is 8 the limit (even with a stack of, say, 6 PC6224)? Just in case you are wondering what this is for: we are trying to connect 4 PE 6950 with 4 NICs each with two netapp filer heads, also having 4 interfaces each. This sums up to 12 aggregated links in my calculation (divided into two vlans, in our plan).

If this is something I cannot do with a dual 6224 stack, I would really like to know.

tia
.Steffen

Please help. We are now proud owners of a stack of 4 PC6224 Switches. By definition, one Switch can have up to 8 LAGs defined. I am not able to figure out, how to have more than these 8 in a stack, of whatever size. Is anybody out there, who can provide a cli config example for this?
Please do not just tell me that this would be entirely possible - I just can not see how one would address LAGs in a switch-local instead of a stack-global way.

tia
.Steffen

p.s.: yes, we could indeed break the stack of four into two pairs and be still highly-available. But the administration would be split up too then, and I am generally interested anyway.