Regarding Transfer speed in Cisco Any Connect
Hi,
I was trying to check transfer speed from Cisco Any Connect, with only ports opened in firewall 443 & 80 with 1 destination , but to complete data transfer of 50MB file it takes around 40mins, but if all ports are unblocked in Firewall with 1 destination ,it takes only 9mins.
so wanted to know the correct port numbers which needs to be opened to make data transfer speed fast & why this behaviour.
Please somebody help me.
a customer has confronted me with a similar issue. They are using AnyConnect SSL Clients in their LAN, and noticed a severe performance drop on client side once connected via AnyConnect. I have set this up in a lab environment to compare LAN performance with AnyConnect SSL performance.
Win7 Client
AnyConnect ASA5520 Win7 iperf Server
Secure Mobility -----------1Gb LAN---------------- v9.1.1---------------------1Gb LAN-------------------- TCP Window Size 4MB
3.1.02040
The ASA was configured from factory default and there was no traffic passing besides this test. AnyConnect used DTLS, and interface mtu on the ASA was 1500, the AnyConnect mtu was left unmodified, so I suspect the maximum of 1406 bytes was used.
Result:
- While AnyConnect was disconnected, Iperf reported bandwidth usage of about 300Mbps. This was what I was expecting.
- As soon as I was connected via AnyConnect, the bandwidth usage dropped tp about 80Mbps. I expected a slight drop, but not this much.
What causes such decrease in performance? Sure, if connected via the Internet, clients will most likely never notice this, but the customer uses AnyConnect SSL in a Gigabit LAN environment. Could the bottleneck be on the client side? The load and memory usage on the ASA side was very low. I have tried several ASA versions, but they all deliver similar results.
Similar Messages
-
Cisco Any Connect: Works fine but can't download file
Hello! Here's my question:
I search for documents in a database over a remote vpn using Cisco Any Connect. Works fine. I receive a result, a list of documents that meet my criteria. I can either export to my PC or open. If I try to export, I get a prompt asking where I would like to place the file. I select the place (my desktop) and the window hangs after about 10% on the progress bar. If I try to open the document, a window opens but hangs.
Is there any way to resolve this, is the problem on my end of the remote vpn? Is this an Any Connect issue?
FYI: I am using IE8. I am using a Microsoft Windows Essentials firewall. (I was using Norton before this, same issue.) I have also tried “Display All Websites in Compability View” option in IE but no difference. The tool I am using is Documentum.
Thanks,
MikeOne thing you should do is get rid of that Westell modem from verizon. Its junk. I replaced it with a DLink DSL modem and internet is faster. Not that this suggestion solves your problem.
-
Cisco any connect does not reconnect to backup ASA
Hi
In Cisco ASA ssl vpn using ANY connect, I have a question on ASA failover. There is an option in the ASDM (AnyConnect Client profile) where one can set a number of backup ASAs in case the primary ASA goes down, So Client can connect to backup ASA in case primary goes down.
Primary ASA = vpn1.test.com
Backup ASA = vpn2.test.com
I have added backup ASA in the backup server list in the client profile section. In the first case, when primary ASA is down, and ANY connect client try to connect to primary ASA (vpn1.test.com) then after few seconds ANYConnect client realizes primary ASA is down and then anyconnect client connect to the backup ASA .
But in case the primary ASA is up and ANYconnect cleint is connected. If I shutdown the primary ASA, then ANY connect client never switch to backup ASA " vpn2.test.com".
Can Someone guide me here why client not try to reconnect to the backup in case the primary ASA gets down.
Any connect version : 3.1.02040
ASA IoS : 9.1
//umairIf you want to make use of the Cisco Connect Software then the connection should be in the following way:
Connect the Modem with the Router on the Internet Port and connect the computer with the Router to any one of the Ethernet Port [Numbered 1, 2, 3 and 4]…
So if you try to make the connection to any other form then in that case the Cisco Connect Software may get installed but it won’t detect the Router and will not get the Internet…. If you want to configure the Router then you can do it manually…
So if you have a DSL connection you can refer to this link:
http://www6.nohold.net/Cisco2/ukp.aspx?pid=93&login=1&vw=1&app=search&articleid=4020&userrole=Linksy...
So if you have a Cable Internet Connection you can refer to this link:
http://www6.nohold.net/Cisco2/ukp.aspx?pid=93&vw=1&articleid=3686 -
MacOS X: Cisco Any Connect 3.x client crashes with certain user
Hello,
I'm using Cisco AnyConnect Secure Mobility Client 3.1.03103. The OS I'm running is Mac OS X 10.8.4 on a MacBook Pro.
During connection (about 5 seconds after pressing the connect button) the VPN clients crashes.
"Cisco AnyConnect Secure Mobility Client qut unexpectedly"
Here is a part of the panic string
--- snip ---
Process: Cisco AnyConnect Secure Mobility Client [1205]
Path: /Applications/Cisco/Cisco AnyConnect Secure Mobility Client.app/Contents/MacOS/Cisco AnyConnect Secure Mobility Client
Identifier: com.cisco.Cisco-AnyConnect-Secure-Mobility-Client
Version: 3.1 (1)
Code Type: X86 (Native)
Parent Process: launchd [239]
User ID: 502
Date/Time: 2013-06-12 17:52:08.425 +0200
OS Version: Mac OS X 10.8.4 (12E55)
Report Version: 10
Interval Since Last Report: 166 sec
Crashes Since Last Report: 2
Per-App Interval Since Last Report: 130 sec
Per-App Crashes Since Last Report: 1
Anonymous UUID: 703DE2BD-C547-C2AE-CC3A-4A411DC4D4CC
Crashed Thread: 3
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000004
VM Regions Near 0x4:
--> __PAGEZERO 0000000000000000-0000000000001000 [ 4K] ---/--- SM=NUL /Applications/Cisco/Cisco AnyConnect Secure Mobility Client.app/Contents/MacOS/Cisco AnyConnect Secure Mobility Client
__TEXT 0000000000001000-00000000000bc000 [ 748K] r-x/rwx SM=COW /Applications/Cisco/Cisco AnyConnect Secure Mobility Client.app/Contents/MacOS/Cisco AnyConnect Secure Mobility Client
--- snip ----
This only happens with one user. With two other users on that same system the issue does not happen.It started after I added Admin rights to that user. I also removed the Admin rights but the error still happens.
I uninstalled the client, deleted /op/cisco directoy and the .anyconnect file in the home directory. I rebooted the MacBook and installed it again. But no change, the error still happens.
Is there any other fix besides deleting and re-creating the user? There must be some configuration file (besides /opt/cisco/anyconnect/profile or the .anyconnect file in the user home ) in the home directory but I haven't found anything.
Help greatly appreciated :-)
Cheers
NielsWe've recently run into an issue related to this. We found that it was related somehow to Firefox. If one looks inside of
/Applications/Cisco/Cisco AnyConnect Secure Mobility Client.app/Contents/MacOS/ there are symlinks to Firefox libraries:
$ ls -lntotal 1800-rwxrwxr-x 1 0 80 891232 Aug 3 2012 Cisco AnyConnect Secure Mobility Clientlrwxr-xr-x 1 1001 80 60 Jun 13 15:57 libmozsqlite3.dylib -> /Applications/Firefox.app/Contents/MacOS/libmozsqlite3.dyliblrwxr-xr-x 1 1001 80 55 Jun 13 15:57 libnspr4.dylib -> /Applications/Firefox.app/Contents/MacOS/libnspr4.dyliblrwxr-xr-x 1 1001 80 54 Jun 13 15:57 libnss3.dylib -> /Applications/Firefox.app/Contents/MacOS/libnss3.dyliblrwxr-xr-x 1 1001 80 58 Jun 13 15:57 libnssutil3.dylib -> /Applications/Firefox.app/Contents/MacOS/libnssutil3.dyliblrwxr-xr-x 1 1001 80 54 Jun 13 15:57 libplc4.dylib -> /Applications/Firefox.app/Contents/MacOS/libplc4.dyliblrwxr-xr-x 1 1001 80 55 Jun 13 15:57 libplds4.dylib -> /Applications/Firefox.app/Contents/MacOS/libplds4.dyliblrwxr-xr-x 1 1001 80 58 Jun 13 15:57 libsoftokn3.dylib -> /Applications/Firefox.app/Contents/MacOS/libsoftokn3.dylib
So as a simple confirmation we were able to remove Firefox and have AnyConnect connect fine. As a more permanent workaround we replaced the above symlinks with 0 byte files and we were able to have our cake (AnyConnect connecting) and eat it too (Firefox installed as well). -
How do I measure transfer speed on an IO Connection?
I bet there are hundreds of ways :)
But I was looking for something that is like built into Java.
Lets say you got a "normal" socket read like this:
BufferedInputStream buffIn = new BufferedInputStream(sock.getInputStream());
DataInputStream dataIn = new DataInputStream(buffIn);
while(running) {
int c;
while( (c=dataIn.read()) != 0xff) {
// Do what ever.
}How would U meansure speed?BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
int r;
while( (r=in.read()) != -1) {
speed();
private void speed() {
if(System.currentTimeMillis()-time > 1000) {
String rate = "Transfer rate " + printTime(bytes) + " /sek";
System.out.println(rate);
bytes=0;
time = System.currentTimeMillis();
} else bytes++;
public String printTime(float time) {
String toReturn = "" + time;
if(((int)time)/((int)1024)>((int)0)) {
time = time/1024;
} else return "" + time + " byte";
if(((int)time)/((int)1024)>((int)0)) {
time = time/1024;
} else return "" + time + " kilobyte";
if(((int)time)/((int)1024)>((int)0)) {
time = time/1024;
} else return "" + time + " megabyte";
if(((int)time)/((int)1024)>((int)0)) {
time = time/1024;
} else return "" + time + " gigabyte";
return toReturn;
} -
Slow transfer speeds between Mac Pro and Shared Drive on Windows Domain
Hi Guys,
Getting really slow transfer speeds when I try and transfer a file from a Mac Pro to a shared network drive on one of our Windows 2003 Servers.
The Mac Pro is logged on to windows domain. This data is transferring via our hard network, not via wireless. Not having any other transfer speed issues on any other PC's.
For example an 8mb file took around 45 mins.
Hope you can help. Many Thanks.I saw this at a site where they were using DFS with Server 2003. When the few Mac's they had connected to the actual server and uploaded the file it was okay. But when it was sending the file via the \\DFS_node\share_name the Mac took heaps longer for the same file. Watching the Activity Monitor > Network monitor you could see gaps with the data transfer, as if there was some pausing between packets. A pcap showed that there was constant DNS requests coming from the Mac, even after the connection to the share was made. The same wasn't happening when the connection via SMB was directly to the actual file server. As there was only a few Mac on site they left it with the direct connection but were getting an MS specialist in to look at it. Never heard what happened with that one but you may want to try monitoring the packet transfer to see if the data movement is contstant or breaking. I'd also recommend getting Wireshark to monitor the transfer. You can compare upload to download and maybe even the transfer from the Mac to an MS workgroup share.
-
FileSharing Transfer Speed Drops after sharing internet connection
Hi Folks
Sometimes, when I copy files via FileSharing,
the speed drops exactly to the max. upload speed my internet connection has.
= instead of 12 MB/s I got 600 ~700 KB/s.
I needed a bit of work to see this connection.
But after a while, it changes back to normal.
However, I did share the ethernet-internet-connection from one machine via WiFi (to surf with an iPod Touch).
Could that initiate this problem? I believe so.
Internet-Provider is cablecom, switzerland, zurich.
I use a Zyxel Ethernet Switch to connect two macs with the cablecom-modem (and together).
So Idetached the cablecom-modem from the ZyXel Switch and restarted both machines.
Now, the copy-action via filesharing has the expected full speed. (Just no internet, of course).
After that I connected the Cablecom-Modem again,
restarted (PowerOff/On) the ZyXel Switch,
and tried the same again:
Now the speed is slow.
It seems that I really should NOT share the Ethernet Internet Connection with WiFi
Won't do that anymore because I often copy files from one machine to the other and this slow transfer speed kills me.
Why is that affecting the connection between two local machines?
How can I reset this to "normal".
I hope there is a way to do it in OS X instead of waiting until it sets itself to "normal" from cablecom's side.
[ -Despite the fact that I should use a wireless router- ]
Is there any chance that this is an issue that OS X could resolve?
Best would probably be: the local connection between two machines should not be affected by the provider in any circumstances.
BTW: The cablecom-modem gives - via a ZyXel Switch - both computers unique IP's and they are reachable/visible from the internet.
Greetings from Zurich
Alain Burki
If my English is bad
please forgive meI am doing the same thing (have tried it occasionally over the past 6 months or so and cannot install Arch because of it)...sad panda. The downloads start fast (up to 5MB/s), then when it gets to 49% it slows all the way down until it gives up and moves to the next mirror, repeating and repeating and repeating until finally it shows:
core is up to date
error: failed to update extra (download library error)
error: failed to update community (download library error)
:: There are 51 members in group base
:: Repository core
Enter a selection (default=all): error: failed to prepare transaction (could not find database)
I've tried commenting out the XferCommand and using wget but that fails even worse.
Thank you for posting this, I am glad I am not the only one experienceing this. I was about to give up searching and post too. -
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....
JayHi,
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 -
Hi Guys,
I own a NMH405 and the speeds I get are horrendous, transferring to/from the device I get on average 2mbps, I have even tried using teracopy and get the same speeds. I can also only stream movie at a time with it sometimes stuttering.
Both the device and my computer are connected via cables to a Belkin F7D2301 gigabyte/wireless-n router. I've also used an old d-link router and got the same speeds and I'm using Windows 7. The transfer speeds to my roommate’s computer are fine so there's nothing wrong with the network.
The only thing I have changed on the Media Hub is a firmware upgrade when I first plugged it in. Have I not set something up right on the device or something? Can someone help me with this please because it's driving me insane and I'm pretty keen to boot it out the window.
Thanks in advance .troz,
First off, I presume you mean MB/s as opposed to Mb/s. Even so, yes, your speeds are low.
I get about the same performance as the article with my NMH, so your problem is either a defective unit, slow hard disk (in your NMH) or some other bottle neck either in your network or PC.
Not sure if you said that you have tried connecting your NMH to other comptuers to see if anything changes. Also, try connecting it just through your gigabit switch.
Another thing you can do to rule out the PC as being the bottleneck is to create a RAM drive in your PC (google it to see how to set up if you don't know how). Transferring files from the RAM drive is much much faster than off your PC HD and associated controller. If your transfer speeds go up noticeably when doing this, then it's your PC that's the bottleneck as opposed to the NMH.
Lastly, I would recommend calling Linksys/Cisco tech support and see if they have any other ideas. I have called them in the past regarding a separate issue and found them quite helpful.
Good luck. -
Hi Guys,
I've got a wired ethernet network set up here at home.
I'm using an Airport extreme which is connected directly to my modem.
From there, I have the Airport connected to a brand new Gigabit switch.
All my devices: 2 imacs, 2 apple tv's, a d-link Gigabit NAS.
For some reason, I can't get transfer speeds over 41.3 MB/sec
I've tried this on all devices. Reset everything.
Is this speed typical of Gigabit? I thought it would be much much faster.
Not sure how to diagnose the issue. Screen shot of network activity below....
Any suggestions?
Cheers,
NickWe had a similar issue and the issue was the LRO settings in esxi
http://billyc5022.blogspot.com/2011/09/vmware-esxi-41-optimizations-for-cisco.html
Sent from Cisco Technical Support iPad App -
[solved] Intel 5300 slow network transfer speed
Heya,
I'm having trouble with my WiFi card Intel 5300 AGN and i hope you can help me.
It's the transfer speed in linux that bugs me. While I get 9 MB/s in Windows I can't for the life of me get more than 2.5 MB/s transfer rate in linux. And this is only if I use NFS4 and turn off the wifi power saving feature. Samba/CIFS gives me transfer speeds of no more than 0.4 MB/s.
The problem has to be somewhere in my linux software/configuration. But where?
I don't have much experience with WiFi configuration in Linux so mine should be pretty vanilla. No manual change of frequencies, channels and the likes. I simply use netcfg to connect and sometimes iwconfig to toggle the power saving feature.
Here's what iwconfig shows me right now while copying a big file:
wlan0 IEEE 802.11abgn ESSID:"bett"
Mode:Managed Frequency:2.412 GHz Access Point: 00:14:D1:C7:43:C4
Bit Rate=243 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=61/70 Signal level=-49 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:11922 Invalid misc:2 Missed beacon:0
As you can see, power management is disabled. The link quality is very good and the bit rate is at 243 Mbps (which should give me about 15 MBps right?). Yet the transfer rate is only 2 MBps, sometimes dropping as low as 0.7 MBps, sometimes spiking to 4.5 MBps for a second or two.
What can I do to improve my network speed?
Any help is greatly appreciated.
Regards,
demian
Last edited by demian (2011-04-09 04:00:49)Thanks for the reply zvxy.
I'm running the most current from [core], version 2.6.37.5-1.
Disabling the N mode improved transfer rates for CIFS/SMB shares. They are the same as with NFS now which is around 2.5 MB/s. Transfer speed for NFS stayed the same.
I'll try the kernel from [testing] and report back later.
// I've tested 2.6.38.2-1 a little bit now and as long as i don't disable wireless N i get transfer rates of up to 12 MB/s with NFS4. That's more than enough for me and i hope it stays that way. The downside is that transfer rate for CIFS is only 1 MB/s.
If i disable wireless n mode NFS transfer rates drop to ~2.8 MB/s while CIFS transfer rates go up to ~2.4 MB/s.
Guess I'll just have to stick with NFS (not that i don't mind but it's already thrown me some "stale" error messages with the new kernel ... i can't seem to catch a break ).
I'll consider this issue solved. Thanks!
Last edited by demian (2011-04-09 04:00:30) -
Slow Transfer Speeds For File Transfer Manager 5.0 Build 0032
I have a 20Mbit internet connection. When I download from the Microsoft download site I can get files downloading at reported speeds of up to 1.7 Mbytes per second.
When downloading from the TechNet Benefits section I have to use the Transfer Manager and I can only get speeds that vary between 30-80 Kbytes per second. Rarely any faster.
I am using XPPro & IE7 straight out onto the Internet via my router / firewall. No proxy server.
What can I do to speed the process up or bypass the File Download Manager?
Regards.Thanks for your feedback Tekky. FYI there is also a forum specifically for TechNet Website Feedback which is the more appropriate place for TechNet Subscriptions questions at http://social.technet.microsoft.com/forums/en/tnfeedback/threads/
There are many suggestions in this post about improving your network speeds when downloading from MSDN and TechNet subscriptions sites. Here is one more place to look for tips, which we have linked to from our Downloads and Product Keys FAQ (MSDN version, TechNet version):
The website for the Microsoft File Transfer Manager, particularly their troubleshooting page which includes additional discussion on configuring the FTM and on slow transfer speeds.
As Julie stated above, you can call TechNet Customer support and they can take you through some additional troubleshooting and diagnostic steps to assist. Julie has linked to the support phone numbers in her reply.
Thanks,
Mike Kinsman -
External hard drive, error -36, corrupt files and slow transfer speeds
This is a long post but stay with me.
I've got an external 250GB Lacie drive connected to my 24" Intel iMac via Firewire 800. I have approximately 80GB worth of files (including my iPhoto library) on the Lacie that I'm trying to move over to my iMac but have run into some frustrating problems.
Overall, transfer speeds are erratic – fine at times and SUPER SLOW (5 minutes to transfer a 3MB file) at other times. At first I was transferring entire folders, but after always getting errors (error -36 to be exact), I was having to transfer individual files. This works fine as long as the files aren't too big (which makes the transfer speeds SUPER SLOW) and not corrupt (which gets me an error -36). Is my Lacie crashing on me? Is there any hope?
Here's what I've done to try and salvage my sanity with no resolve to my problems (not exactly in this order):
1) Ran Disk Utility to repair Lacie. Everything came back OK
2) Ran Disk Warrior on Lacie. Found a handful of bad items that Disk Warrior was able to repair. Had Disk Warrior replace the old directory of the Lacie with the new directory.
3) Ran Drive Genius: Raired and Rebuilt the directory, did an Integrity Check (came back OK), attempted to Defrag but could not because of errors to the drive, did a Scan for bad blocks (which after running for 3 days! it was only 20% complete and had found over 150 bad blocks, at which point I quit to try something else)
4) Checked that my Firewire cable was properly connected and replaced the older one I was using with a brand new one.
5) Disconnected all peripherals except for keyboard, mouse and Lacie.
6) And at times, even viewing a file on the Lacie has caused my Finder to crash, requiring a restart of my iMac.
I'm sure I've left something off I've tried but you get the idea.
I've read that maybe I can transfer my files using Terminal. Yes/No? Does this bypass any corruption the files may have?
What about creating a second partition on the Lacie and moving files over to the second partition? Does this solve anything? I don't know anything about partitioning so maybe I'm talking crazy.
I've also read that iPhoto tends to corrupt files which makes me hate iPhoto, and myself for not backing up.
And I've read a lot about error -36's and none of it sounds good so I'm just hoping that someone might have other suggestions for me to try and save my files (especially my iPhoto files which include baby pictures that if I lose, my wife will kill me).
So if anyone has any ideas, let me know. Please. I'll try anything.Hi Aaron Thompson-
I am fairly certain you have a bad power supply brick to the LaCie drive. This is a hard problem to troubleshoot as generally when the bricks go bad they do so slowly and the drive appears to power up and stuff but it just doesn't work.
If the drive is under warranty LaCie will replace the brick at no charge. Otherwise they sell them for around $20US on their website.
Luck-
-DP -
Very slow network directory listing - but fast data transfer speed once listed?
Hello,
I have really tried to sort this myself before opening up to the community, however I have run out of ideas, and hope someone can offer the magic solution I have missed.
I am currently using the 3.4ghz i7 iMac on a 1GB LAN, running OSX10.7.2 - connecting to a Windows Server 2008 (Running Release 2) over ethernet.
If i go to a network directory that i haven't recently accessed it can take up to 60 seconds to show the contents of that directory. Once i have accessed that folder, if i come out of it and go back in it will be instant again - but the first time it lists the directory it looks like i have opened an empty folder - which after anything from 10seconds to 1 minute will suddenly show the files that are there.
Internet connectivity is fast through the network, and file transfers across the LAN are fast. (showing as approx 300mb per second) I can play and edit HD content across the network with no slowdown so I am confident that this issue is not related to the network speed itself, and is more to do with a setting on this mac.
Symptoms are very similar to this post: https://discussions.apple.com/message/12245148?messageID=12245148&%3b#1224514 8 - however i understand that in OSX Lion - SMB was removed - so i cannot find this file to edit.
I have tried bypassing additional hubs in the network by wiring direct cables to the switch that is connected to the file server, this made no difference.
I have also tried disconnecting the ethernet cable, and running over wifi. This fixes the listing problem, but when editing HD content over a network drive, this connection is not fast enough to carry the data without interruption (some projects are linked to up to 900gb of hd video content!)
Using ethernet, I have tried DHCP, DHCP with manual address, and manual mode. All reproduce this problem. i have tried using the windows workgroup, and tried without it.
I have also followed this suggestion: https://discussions.apple.com/thread/2134936?threadID=2134936&tstart=45 and used OpenDNS. this did not fix the issue.
For argument sake, I have also just tested a Macbook Pro running Snow Leopard to see if it was OS related. This reproduces the exact same problem, near instant directory listing on the wifi, a long and arduous wait on ethernet.
I cannot work out why directory listing is instant over wifi, but not over ethernet on 2 different macs, running 2 different versions of OSX. I also do not understand why if the network is having trouble listing the directories - the data transfer speed is 300mbps when i copy files across the wired network from the file server to the mac.
Does anyone have any other ideas as to what could be the problem here? We are about to start work on a very large project, where the content we are editing is spread out across around 200 different network folders (different shoots captured over the past 2 years). We really don't have the time to wait 60 seconds each time we need to access one of those directories to look for a file, and I am very close to pulling all my hair out!
I really look forward to hearing from anyone who can offer any insight.If you are suspecting that the Windows update had something to do with your LAN going slow, then try the following:
1. Look for updates for your clients LAN NIC driver; or
2. Un-install the updates. -
Very slow transfer speeds with external hard drives through Firewire and US
Hi All,
My external drives transfer very slowly on my MacPro. I've been searching for answers and have turned up very little. Apple support suggested I post my issue here. Just to make a note, I measured my disk speeds with both AJA System Test and copying files between drives and reading the Disk Activity in Activity Monitor.
I have 3 external drives, all MyBook Premium or Professional, 1x 500GB, 1x 1TB and 2x 1TB in RAID 0. I had them on Firewire 400 and the RAID 0 2TB one on Firewire 800. My transfers on FW were all around 24MB/sec on all drives (much less than what I should be getting with FW400). I then read somewhere that the FW bus on the MacPro uses the slowest speed connected for all FW connections. So I unplugged everything but the FW800 Raid 0 drive and my transfer rate jumped to 40-60MB/sec. This is much better, but still about half or so of what I expect it should be producing from an external RAID 0 setup.
To keep my FW800 backup drive faster, I've plugged the other two into USB2.0. The transfer speeds on both drives are now hideous, around 10-15MB/sec. This is so slow, but I'm not sure what to try to fix my speeds.
The HD's in the external drives are all 7200rpm, and all should be transferring at a higher rate. Do you have any suggestions or ideas? Ideally I'd like to get everything transferring at rates they should be transferring at, but I'll settle with my current FW800 speed of 40-60MB/sec if I can get my other two drives transferring at a non-snail pace.
Is this a common issue? I can't believe I'm the only one plugging multiple external hard drives into their Mac Pro. I hope someone has a fix or solution for this. I'm all ears!
Thanks in advance.Hi Kappy, thanks for the information.
So I rejigged my setup a tad. My RAID 0 is still FW800, the second drive is back on FW400 on the back port, and the third is USB 2.0 on the back as well.
It's interesting to note that I saw the FW800 taking a bandwidth hit if the FW400 drives was being read/written to. For example, if I was averaging 50-60MB/sec on the FW800 drives and copy something large to the FW400 drive, each drive averages out to about 30/MB second, roughly half the FW800 speed I was getting. The USB while the slowest didn't cause any slowness on the FW drives.
Here are my Xbench results. These results are from each drive being benchmarked individually with no other drives being tested at the same time.
*MyBook 2TB in a RAID 0 configuration: Firewire 800*
Results 75.42
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 16384 MB
Model MacPro3,1
Drive Type WD My Book
Disk Test 75.42
Sequential 80.92
Uncached Write 69.16 42.46 MB/sec [4K blocks]
Uncached Write 110.79 62.68 MB/sec [256K blocks]
Uncached Read 53.66 15.70 MB/sec [4K blocks]
Uncached Read 136.76 68.73 MB/sec [256K blocks]
Random 70.62
Uncached Write 36.38 3.85 MB/sec [4K blocks]
Uncached Write 140.55 45.00 MB/sec [256K blocks]
Uncached Read 93.26 0.66 MB/sec [4K blocks]
Uncached Read 88.38 16.40 MB/sec [256K blocks]
*MyBook 1TB on Firewire 400*
Results 47.73
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 16384 MB
Model MacPro3,1
Drive Type WD My Book
Disk Test 47.73
Sequential 52.47
Uncached Write 48.45 29.74 MB/sec [4K blocks]
Uncached Write 53.76 30.42 MB/sec [256K blocks]
Uncached Read 43.69 12.79 MB/sec [4K blocks]
Uncached Read 70.91 35.64 MB/sec [256K blocks]
Random 43.78
Uncached Write 17.29 1.83 MB/sec [4K blocks]
Uncached Write 98.83 31.64 MB/sec [256K blocks]
Uncached Read 76.33 0.54 MB/sec [4K blocks]
Uncached Read 97.01 18.00 MB/sec [256K blocks]
*MyBook 500GB on USB 2.0*
Results 40.60
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 16384 MB
Model MacPro3,1
Drive Type WD 5000AA External
Disk Test 40.60
Sequential 35.99
Uncached Write 37.31 22.91 MB/sec [4K blocks]
Uncached Write 37.22 21.06 MB/sec [256K blocks]
Uncached Read 26.62 7.79 MB/sec [4K blocks]
Uncached Read 50.27 25.27 MB/sec [256K blocks]
Random 46.55
Uncached Write 20.37 2.16 MB/sec [4K blocks]
Uncached Write 68.44 21.91 MB/sec [256K blocks]
Uncached Read 93.55 0.66 MB/sec [4K blocks]
Uncached Read 86.71 16.09 MB/sec [256K blocks]
So Kappy are you saying that those speeds look normal?
Thanks
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