SF300-24 slow transfer speeds

[ericpricegcn]

Ever since I installed this SF300-24 switch replacing an old 10/100 Dell dumb switch I have been getting slow transfer speeds during my backups. I used to get a throughput of 2.8gb/min and now getting around 680mb/min. I'm not sure what setting if any that could be causing this. I tried disabling QoS but no luck.

Thanks,

Eric

[Tom Watts]

Hi Eric, what do you have connecting to the switch? Is it a simple point to point transfer of a sort? The very first thing i'd recommend is to upgrade to the newest firmware, factory reset the switch, if that doesn't fix it, then I'd start troubleshooting.

Have you checked the negotiation setting on each connecting device and verify that everything has negotiated 100 full duplex? Can you set the switch port setting manually to 100 full duplex?

Another idea may be to disable the spanning tree globally.

-Tom
Please mark answered for helpful posts

[Reuben Farrelly]

The OP is getting 680Mbyte/min = 11.3 Mbyte/sec = 91 MBit/sec already, so I don't think there's going to be a duplex problem.  91% of rated line speed of 100M is pretty good and I suggest indicates that there's no real problem there at all.

Eric are you absolutely certain the old Dell switch wasn't a 10/100/1000 switch?  You're already getting close to line rate on the 10/100 SB switch already, it's physically impossible to transfer 2.8 GByte/minute on a 10/100 port.  Something with your figures somewhere does not add up.