link aggregation between 4250 and 3300

[danb1]

Hi,

I cannot figure how to configure a multiple 100mbit port aggregation between a 4250T and a 3300 switch. To be specific the 3300 seems to know only manual aggregation (which is perfectly fine with me) _but_ the 4250 does not let me define a manual aggregation on other ports then 49 or 50 (the two gigabits)

The manual states that any port can be used for aggregation, be it manual or LACP.

Port securiy is disabled.

Here is the CLI dialog where the switch is very specific about which port can be used in the aggregation

Select menu option (bridge/linkAggregation/modify): addp
This operation may take a number of seconds
Select aggregated link index (1-4): 1
Select ports (unitort...,?): ?
Example of a comma separated list: 1:1-2,2:3-4:5
Available ports for this command are: 1:49-1:50

What do I miss here?

Thanks,

 

[SheffieldDave]

Have you already tried to build the aggregated link trough the web-menue?
I haven't configured a SSIII 4250 so far but I guess it will work the same way like on a SSIII 4400.
There I have created an aggregated link like the following example:

Select menu option (bridge/linkAggregation/modify): addport
This operation may take a number of seconds
Select aggregated link index (1-4): 1
Select ports (unitort...,?): 1:1

Select menu option (bridge/linkAggregation/modify): addport
This operation may take a number of seconds
Select aggregated link index (1-4): 1
Select ports (unitort...,?): 1:2

Select menu option (bridge/linkAggregation/modify): addport
This operation may take a number of seconds
Select aggregated link index (1-4): 1
Select ports (unitort...,?): 1:3

Select menu option (bridge/linkAggregation/modify): addport
This operation may take a number of seconds
Select aggregated link index (1-4): 1
Select ports (unitort...,?): 1:4

 

[danb1]

Already talked to 3Com. 4250 does not support link aggregation on 10/100 ports (and "get a 4400 instead" is not a valid option).

And btw it does not implement per-vlan stp as it should, instead it runs one stp process for all ports no matter which vlan they belong.

Case closed. Next time I'll go for a catalyst.