I may have found a partial answer myself. I just read that the 27xx and 28xx series PowerConnects do not support LACP. They only support 802.3ad STATIC . That would certainly explain part of the problem I would think.
I see in the Broadcom Team setup screen that I can chose Generic Trunking/802.3ad-Draft Static . Is this what I need to do? And then create the 4-port LAG on the switch?
- I created 2 LAGs on the 2848, 4 ports each. each LAG connects to one of the 2724s where I created the matching 4 port LAG. I turned off auto negotiation on all of the ports and LAGs
2724=====2848=====2724 ===== ======
- I created a third 4-port LAG on the 2848 for the Generic Trunking LAG from the file server (converted the LAG from the 802.3ac LACP to generic trunking static). Now, the stats on the 4 adapters are MUCH more evenly balanced (and they all have the same 'team' icon)
- I patched as many of the more critical machines in the network (servers, wifi routers, heavy use desktops, etc) into the remaining ports on the 2848 since it's now my central switch (all servers and it hosts both trunks). I figured this would reduce the connections that a good portion of the network traffic needed to traverse
how does all of that look/sound? anything in particular that I should try, remedy, change, set on the switch(es).
I found a little program called LAN Speed Test (lite -free version). It allows you to enter a network share, chose a packet size and it will write a file and read a file of that size to and from the share. When I run that from my laptop (gigabit wired no wifi) to the main file server (with the Broadcom team), I get uploads speeds of a little more than 600Mbps and download speeds of around 675Mbps. From one of our high-performance workstations I get like 780down and 650up. I was hoping for more...am I being unrealistic?
bcontento
5 Posts
0
March 18th, 2015 10:00
I may have found a partial answer myself. I just read that the 27xx and 28xx series PowerConnects do not support LACP. They only support 802.3ad STATIC . That would certainly explain part of the problem I would think.
I see in the Broadcom Team setup screen that I can chose Generic Trunking/802.3ad-Draft Static . Is this what I need to do? And then create the 4-port LAG on the switch?
bcontento
5 Posts
0
March 19th, 2015 07:00
Thanks for the reply.
I did some work on this last night:
- I created 2 LAGs on the 2848, 4 ports each. each LAG connects to one of the 2724s where I created the matching 4 port LAG. I turned off auto negotiation on all of the ports and LAGs
2724=====2848=====2724
===== ======
- I created a third 4-port LAG on the 2848 for the Generic Trunking LAG from the file server (converted the LAG from the 802.3ac LACP to generic trunking static). Now, the stats on the 4 adapters are MUCH more evenly balanced (and they all have the same 'team' icon)
- I patched as many of the more critical machines in the network (servers, wifi routers, heavy use desktops, etc) into the remaining ports on the 2848 since it's now my central switch (all servers and it hosts both trunks). I figured this would reduce the connections that a good portion of the network traffic needed to traverse
how does all of that look/sound? anything in particular that I should try, remedy, change, set on the switch(es).
I found a little program called LAN Speed Test (lite -free version). It allows you to enter a network share, chose a packet size and it will write a file and read a file of that size to and from the share. When I run that from my laptop (gigabit wired no wifi) to the main file server (with the Broadcom team), I get uploads speeds of a little more than 600Mbps and download speeds of around 675Mbps. From one of our high-performance workstations I get like 780down and 650up. I was hoping for more...am I being unrealistic?