Hi everyone,
I have noticed something strange the last few weeks. I have a mail sever and some other servers that I access in the UK. I noticed the following:
1) EMAIL SENDING: Sending larger emails (~ 500Kb) the email times out and I have to resend this about 3 times before it goes out. This is also true when using the gmail mail servers. The progress bar of the email being sent jumps to 70%...and then everything hangs for a few minutes before the remaining 30% is sent, or it fails.
2) SCP Session: When copying data from a server in RSA to a server in the UK using SCP available in Unix systems, the client copying the data has the same effect as (1) above. The client copies data, and it either hangs or times out, or a large part of the file is initially copied and then after some delay the remainder of the data. I have also noted that the client indicates the transaction is complete, but on the server only about 10% of the data has arrived, and slowly but surely the rest is arriving of on the server.
3) SSH Sessions: When using SSH, I can sometimes work on a server and then the session just dies - after many minutes it might recover, or the session is simply terminated.
The above is not noted when using a ADSL line, which to me indicates Vodacom, or the WAN is doing something really odd with data packets...
From a commercial perspective: I want to copy 2 MB of data. On the client this is indicated but the data on the server is much less - so how much of my databundle did I use then?
Past experience has noted that I should not be expecting much from VC on this, and the easy answer is probably going to be that it is my systems that is the issue. Note that on a ADSL line this does not occur...and the servers in the UK is sitting in a ISP data center...with PLENTY of bandwidth available.
Anyone else having similar issues or perhaps have seen this before - cold this be the effect of traffic shaping perhaps?
Regards.
I have noticed something strange the last few weeks. I have a mail sever and some other servers that I access in the UK. I noticed the following:
1) EMAIL SENDING: Sending larger emails (~ 500Kb) the email times out and I have to resend this about 3 times before it goes out. This is also true when using the gmail mail servers. The progress bar of the email being sent jumps to 70%...and then everything hangs for a few minutes before the remaining 30% is sent, or it fails.
2) SCP Session: When copying data from a server in RSA to a server in the UK using SCP available in Unix systems, the client copying the data has the same effect as (1) above. The client copies data, and it either hangs or times out, or a large part of the file is initially copied and then after some delay the remainder of the data. I have also noted that the client indicates the transaction is complete, but on the server only about 10% of the data has arrived, and slowly but surely the rest is arriving of on the server.
3) SSH Sessions: When using SSH, I can sometimes work on a server and then the session just dies - after many minutes it might recover, or the session is simply terminated.
The above is not noted when using a ADSL line, which to me indicates Vodacom, or the WAN is doing something really odd with data packets...
From a commercial perspective: I want to copy 2 MB of data. On the client this is indicated but the data on the server is much less - so how much of my databundle did I use then?
Past experience has noted that I should not be expecting much from VC on this, and the easy answer is probably going to be that it is my systems that is the issue. Note that on a ADSL line this does not occur...and the servers in the UK is sitting in a ISP data center...with PLENTY of bandwidth available.
Anyone else having similar issues or perhaps have seen this before - cold this be the effect of traffic shaping perhaps?
Regards.
