Very low transfer speed issue on SUN4270 M2 server connected with nexus 5548 switch on 10GB fiber.

                   Hi,
I have 2 SUN 4270 M2 servers connected with Nexus 5548 switch over 10Gb fiber card. I am getting performance of just 60 MB per second while transfer of 5Gb file across 2 servers. The similar speed i use to get on 1Gb network also. Please suggest how to improve the tranfer speed. On servers, ports ET4 and ETH5 are bonded in bond0 with mode=1. The server envrionment will be used for OVS 2.2.2.
Below are the details of network configuration on server. I quick help will be highly appriciated--
[root@host1 network-scripts]# ifconfig eth4
eth4      Link encap:Ethernet HWaddr 90:E2:BA:0E:22:4C
          UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
          RX packets:5648589 errors:215 dropped:0 overruns:0 frame:215
          TX packets:3741680 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2492781394 (2.3 GiB) TX bytes:3911207623 (3.6 GiB)
[root@host1 network-scripts]# ifconfig eth5
eth5      Link encap:Ethernet HWaddr 90:E2:BA:0E:22:4C
          UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
          RX packets:52961 errors:215 dropped:0 overruns:0 frame:215
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3916644 (3.7 MiB) TX bytes:0 (0.0 b)
[root@host1 network-scripts]# ethtool eth4
Settings for eth4:
        Supported ports: [ FIBRE ]
        Supported link modes:   1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes: 1000baseT/Full
                                10000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes
[root@host1 network-scripts]# ethtool eth5
Settings for eth5:
        Supported ports: [ FIBRE ]
        Supported link modes:   1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes: 1000baseT/Full
                                10000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes
[root@host1 network-scripts]#
[root@host1 network-scripts]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.2.4 (January 28, 2008)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth4
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth4
MII Status: up
Link Failure Count: 0
Permanent HW addr: 90:e2:ba:0e:22:4c
Slave Interface: eth5
MII Status: up
Link Failure Count: 0
Permanent HW addr: 90:e2:ba:0e:22:4d
[root@host1 network-scripts]# modinfo ixgbe | grep ver
filename:       /lib/modules/2.6.18-128.2.1.4.44.el5xen/kernel/drivers/net/ixgbe/ixgbe.ko
version:        3.9.17-NAPI
description:    Intel(R) 10 Gigabit PCI Express Network Driver
srcversion:     31C6EB13C4FA6749DF3BDF5
vermagic:       2.6.18-128.2.1.4.44.el5xen SMP mod_unload Xen 686 REGPARM 4KSTACKS gcc-4.1
[root@host1 network-scripts]#brctl show
bridge name     bridge id               STP enabled     interfaces
vlan301         8000.90e2ba0e224c       no              bond0.301
vlan302         8000.90e2ba0e224c       no              vif1.0
                                                        bond0.302
vlan303         8000.90e2ba0e224c       no              bond0.303
vlan304         8000.90e2ba0e224c       no              bond0.304
[root@host2 test]# ifconfig eth5
eth5      Link encap:Ethernet HWaddr 90:E2:BA:0F:C3:15
          UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
          RX packets:4416730 errors:215 dropped:0 overruns:0 frame:215
          TX packets:2617152 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:190977431 (182.1 MiB) TX bytes:3114347186 (2.9 GiB)
[root@host2 network-scripts]# ifconfig eth4
eth4      Link encap:Ethernet HWaddr 90:E2:BA:0F:C3:15
          UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
          RX packets:28616 errors:3 dropped:0 overruns:0 frame:3
          TX packets:424 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4982317 (4.7 MiB) TX bytes:80029 (78.1 KiB)
[root@host2 test]#
[root@host2 network-scripts]# ethtool eth4
Settings for eth4:
        Supported ports: [ FIBRE ]
        Supported link modes:   1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes: 1000baseT/Full
                                10000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes
[root@host2 test]# ethtool eth5
Settings for eth5:
        Supported ports: [ FIBRE ]
        Supported link modes:   1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes: 1000baseT/Full
                                10000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes
[root@host2 network-scripts]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.2.4 (January 28, 2008)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth5
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth5
MII Status: up
Link Failure Count: 0
Permanent HW addr: 90:e2:ba:0f:c3:14
Slave Interface: eth4
MII Status: up
Link Failure Count: 0
Permanent HW addr: 90:e2:ba:0f:c3:15
[root@host2 network-scripts]# modinfo ixgbe | grep ver
filename:       /lib/modules/2.6.18-128.2.1.4.44.el5xen/kernel/drivers/net/ixgbe/ixgbe.ko
version:        3.9.17-NAPI
description:    Intel(R) 10 Gigabit PCI Express Network Driver
srcversion:     31C6EB13C4FA6749DF3BDF5
vermagic:       2.6.18-128.2.1.4.44.el5xen SMP mod_unload Xen 686 REGPARM 4KSTACKS gcc-4.1
[root@host2 network-scripts]#brctl show
bridge name     bridge id               STP enabled     interfaces
vlan301         8000.90e2ba0fc315       no              bond0.301
vlan302         8000.90e2ba0fc315       no              bond0.302
vlan303         8000.90e2ba0fc315       no              bond0.303
vlan304         8000.90e2ba0fc315       no              vif1.0
       bond0.304
Thanks....
Jay

Hi,
Thanks for reply..but the RX errors count is keep on increasing and the transfer speed between 2 servers are max 60MB/ps on 10GB FC card. Even on storage also, i am getting the same speed when i try to transfer data from server to storage on 10GB FC card. Servers and storage are connected through Nexus 5548 switch.
#ifconfig eth5
eth5      Link encap:Ethernet HWaddr 90:E2:BA:0E:22:4C
          UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
          RX packets:21187303 errors:1330 dropped:0 overruns:0 frame:1330
          TX packets:17805543 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:624978785 (596.0 MiB) TX bytes:2897603160 (2.6 GiB)
JP

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Connection information
Line state
Connected
Connection time
2 days, 7:33:35
Downstream
4,544 Kbps
Upstream
77 Kbps
ADSL settings
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.5
Latency type
Interleaved
Noise margin (Down/Up)
10.9 dB / 9.0 dB
Line attenuation (Down/Up)
46.0 dB / 31.6 dB
Output power (Down/Up)
0.0 dBm / 12.6 dBm
Loss of Framing (Local)
0
Loss of Signal (Local)
0
Loss of Power (Local)
0
FEC Errors (Down/Up)
0 / 0
CRC Errors (Down/Up)
2426 / N/A
HEC Errors (Down/Up)
N/A / 0
Error Seconds (Local)
1945

Ok, heres the latest. Been on the phone to BT for the past few days. Theyve done various line tests/resets and have recently sent us a new homehub3. However our problem is now worse? Heres the latest speedtest.
FAQ
1. Best Effort Test: -provides background information.
Download Speed
1.11 Mbps
0 Kbps
4 Mbps
Max Achievable Speed
Download speedachieved during the test was - 1.11 Mbps
For your connection, the acceptable range of speeds is 1.2 Mbps-4 Mbps.
IP Profile for your line is - 4.01 Mbps
2. Upstream Test: -provides background information.
Upload Speed
44 Kbps
0 Kbps
832 Kbps
Max Achievable Speed
Upload speed achieved during the test was - 44Kbps
Additional Information:
Upstream Rate IP profile on your line is - 832 Kbps
Also, when I use www.speedtester.net it thinks i'm in gloucester when i live in south west scotland. Think this may have something to it?

Very slow transfer speeds with Airport Extreme and MacBook

I have been using a new Airport Extreme without problem at my home for the past six weeks. The speed and range was excellent with both my MacBook Pro and the MacBook which I purchased a few weeks ago. I came out to Greece with both laptops and a new AP Extreme box for my home network here. After set up I noticed that internet access was lethargic on the MacBook and file transfer between the two computers was extremely slow. The problem seems to be with the new MacBook (although it was working well in London). I've done some speed tests and the internet download speed is only 48 kpbs! I also notice that the range is very poor--in the room next to the router I am down to five bars. If I connect to the AP Extreme with cable I get the full 1Mbps I would normally expect here in Athens (ADSL nominal 2Mbps). The MacBook Pro has no problems with wireless access speeds or range, so I am assuming this has to be a problem with the AP extreme card in the MacBook. Is there anything I have overlooked? Perhaps something to do with setting up the new AP Extreme here in Athens?

By process of elimination I realised that the only cause of the sudden slowness must be software that I had installed recently. The only software I had added was a wifi utility to detect available networks--open or protected. Unlikely as it sounds, quitting the utility (which I had set to load on startup) made a dramatic improvement in performance.

Very low network speed.

Hi everyone.
This is my first post at this forum. And belive I have tried many other different forums before reaching this one.
Oh well. So here is my problem. My macbook is connected to a LAN using Airport, everything is set up manually. And when im trying to upload files using either samba or ftp I get speeds around 20kbs. Okay, I know I should not expect a lot using wifi to transfer files over the network. But come on, 20kbs upload? The irony is that I get higher speed uploading to a server way outside my network then on my lan, using airport.
THe server im connecting to on my LAN is a Debian unstable server using proftpd and a samba server. Everything is fine from another pc in my home, and usually get speeds aroun 8-10Mbs. So I dont think the problem are really on my server.
Both the server and my macbook has disabled Ipv6 in an atempt to rule out any misconfiguration. But to no availe.
I searched this forum a few hours ago and got this http://discussions.apple.com/thread.jspa?messageID=613316&#613316 followed it and got nothing.
So, what should I do?
PS, and this is very important. I have tried to use the ethernet on my LAN to transfer files as well, but get the same speeds. But from my pc to mac, it flows like normal I.E 8-10MBs.

Well, in Netstat>Display Comprehensive Network Statistics for eac Protocol, the first one should be TCP:, and should look something like this...
tcp:
3371399 packets sent
807507 data packets (593976003 bytes)
18944 data packets (16877557 bytes) retransmitted
1 resend initiated by MTU discovery
2373294 ack-only packets (4 delayed)
0 URG only packets
32 window probe packets
33802 window update packets
137834 control packets
3103297 packets received
639050 acks (for 593661354 bytes)
64836 duplicate acks
0 acks for unsent data
2256151 packets (2648078820 bytes) received in-sequence
10197 completely duplicate packets (9475948 bytes)
137 old duplicate packets
727 packets with some dup. data (330463 bytes duped)
153229 out-of-order packets (187771644 bytes)
0 packets (0 bytes) of data after window
0 window probes
15843 window update packets
568 packets received after close
210 discarded for bad checksums
0 discarded for bad header offset fields
0 discarded because packet too short
104937 connection requests
470 connection accepts
0 bad connection attempts
0 listen queue overflows
37590 connections established (including accepts)
118775 connections closed (including 1322 drops)
745 connections updated cached RTT on close
745 connections updated cached RTT variance on close
106 connections updated cached ssthresh on close
67803 embryonic connections dropped
635781 segments updated rtt (of 665339 attempts)
30918 retransmit timeouts
275 connections dropped by rexmit timeout
37 persist timeouts
0 connections dropped by persist timeout
2828 keepalive timeouts
0 keepalive probes sent
2100 connections dropped by keepalive
166226 correct ACK header predictions
2074205 correct data packet header predictions
Perhaps Info would be easier...
Does it list any Recieve Errors or Collisions?

Skype Desktop - very slow transfer speeds

Hi. Ever since 6.x was released, it became almost impossible to send files. What changed, and what can I do to fix this issue?
Please do not redirect me to that same "catch-all" thread for this issue. I am well aware that others have had this problem. Yes, I have the "Send anon usage/performance info" setting enabled.
I am getting speeds ~1-3KB/sec for every transfer, no matter the person or group
Info:
Windows 8.1 x64
Skype Desktop v7.4.0.102
Core2Quad 2.8ghz / 8GB RAM / Geforce 550 GTX Ti
75/75Mbit ISP connection
As you can see, I have MORE than enough resources to send files at my highest connection speeds (10.1MB/sec). I have tried setting static ports for skype and allowing them through my router, tried different combinations of Skype connection settings, turning off my OS firewall, and even tried setting my machine in the DMZ. Nothing has increased Skype's ability to send files quickly. So, what is going on?
EDIT :: Just uploaded my DXDiag results in ZIP archive
Attachments:
DxDiag.zip ‏12 KB

Did you get a reply to this? I have been having similar issues with extremely slow file transfers. It seems independant of who I am sending the files to. Also I notice when I am sending a file not only does it go slowly it slows downmy whole internet (so it seems to be using a whole lot more bandwidth than just the data of the actual file I am sending). I have the latest skype and IE and never had issues previously.

Very low transfer speed issue on SUN4270 M2 server connected with nexus 5548 switch on 10GB fiber.

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