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тАО01-26-2010 02:47 PM
тАО01-26-2010 02:47 PM
7750 link aggregation problem
Hi, i buy one 7750 with one 3c16886 and two of 3c168916 12 port copper and 4 port fiber , i would like set up 4 lacp link with other's 3com device, when write some commad i can see lacp active but one for any link with other device.
My setup would be like this
Two 5500 stacked with special cable, one fiber interface from for example interface 1/0/25 ( first fiber of firts switch on stack ) to one fiber , for example 2/0/13 of 7750, another link from interface 2/0/25 of 5500 stack unit 2 to interface 3/0/13 of the 7750
all interface are configured in the same way as read manual, same trunk type, same vlan-pass same pvid and so on.
When try to do this i can see lacp enable and relative group but i see 4 distinct group, insted 2 group with in the two interface from two blades.
As you can knows it's possible establish lacp link shared across blades?
Many thanks
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тАО02-02-2010 12:32 PM
тАО02-02-2010 12:32 PM
Re: 7750 link aggregation problem
The 7750 switch does not support distributed link aggregation; in exception the 7758 when using redundant fabric modules, when the switch will support the distribution of aggregated links only in the ports available in these fabric modules.
HTH
Fred Mancen
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тАО02-04-2010 05:19 AM
тАО02-04-2010 05:19 AM
Re: 7750 link aggregation problem
Many Thanks for answer, my workaround was using two fiber on the same blade in lacp link