[adgr]

Frame errors are the result of fragmented packets smaller than 64 bytes.
The MTU is set to 1500 for etho, so try if the following command gives a reply or a fragmented packet message:
ping -s 1492 <external ip adres>

[Marvel]

Hey adgr.

I ran

Code:

root@XBMCLive:~# ping -s 1492 173.194.37.104 (www.google.com)

Which gave:

Code:

PING 173.194.37.104 (173.194.37.104) 1492(1520) bytes of data.

Left it for a minute, then did ctrl+c. Then got the following:

Code:

--- 173.194.37.104 ping statistics ---
87 packets transmitted, 0 received, 100% packet loss, time 86068ms

Cheers M.

[adgr]

Try with 1472 packet size. The MTU for eth0 is set to 1500, so 1472 IP packet + 28 byte ICMP header should fit and give response without any issues. If you still don't receive any response, your router/switch may have a problem.
In that case could try to lower the MTU of the eth0 interface to 1472 and see if that solves your issues.

[pecinko]

I just tested connections in all directions among an ASROCK ION 330 (not the HT with the wifi feature), 2 laptops and a DS209 Synology NAS all connected to a gigabit router with CAT5E cables using iperf.
In all cases around 80-85 Megabyte/s.

I have the same configuration and speeds around 25-35MB/s with D-Link switch. Your speeds seams very high considering DS209. What router/switch are you using?

[adgr]

I have the same configuration and speeds around 25-35MB/s with D-Link switch. Your speeds seams very high considering DS209. What router/switch are you using?

I am using a D-LINK DIR-655.

[Marvel]

Yep adgr, I did:

Code:

ping -s 1472 173.194.37.104

Which gave the results

Code:

--- 173.194.37.104 ping statistics ---
15 packets transmitted, 15 received, 0% packet loss, time 14022ms
rtt min/avg/max/mdev = 56.693/57.581/58.876/0.497 ms

I then tried to set the mtu at 1472 with the nic set at 1000Mb/s. That speeded the connection up a little bit but still nowhere what it should be.

Does the nic get the mtu size from the router automatically ? I don't know much about mtu, packets and pings haha. Time to go have a read.

Cheers M.