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HPE 1920S JL381 : Problem with LACP

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Hi to everyone.

I have some HPE HPE 1920S JL381/JL384  SWITCH connected directly by a single Eth cable, and I want to test in my LAB some configuration for improve the performance, using LACP (TRunk).

There are about 10 vlan configurated, I want to aggregate 3/4 1Gbs port for connect , for example Switch 1 to Switch 2., and improve the bandwith of connection between the 2 switch.

I try both Static and Dynamic trunk mode, all With ALL existing VLAN included and TAGGED, but I see a high  downgrade of speed performance,.. This is the scenario before and after TRUNK :

Before: Switch 1 connected with single Ethernet Cable  to Switch 2

Trasfer n.1 4 GB file from PC in Switch1 to Switch 2 :  About 80 MB/s

Trasfer n.2 4 GB file from PC in Switch1 to Switch 2 :  never over 30 MB/s each trasfer???  Why this loss of speed??

After: Switch 1 connected with n.3 Ethernet Cable  to Switch 2, TRUNK Dynamic mode (same in static mode)

Trasfer 4 GB single file from PC in Switch1 to Switch 2 :  About 80 MB/s

Trasfer n.2 4 GB file from PC in Switch1 to Switch 2 :  never over 30 MB/s each trasfer???  Why this loss of speed, and there aren't improve for the 3x1 Gb/s of connections?

I hope to obtain a real 3Gb/s channel connection using LACP..

Where are my errors???

Thanks a lot.

 

 

 


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