Bandwidth issues in the Sprint network
Brian Raaen
braaen at zcorum.com
Tue Apr 8 13:49:03 UTC 2008
Currently there is not a proxy server in the network, although when using some
of the test on dslreports.com there is a message about compression being used
for the upload and to remove proxy settings. I have also been testing using
FTP on a *nix server as well. Both the server and PC are connect to a Cisco
2960 switch in the headend that is connected to the 7200 router. I can
transfer ftp at about 80Mbps between the PC and the server, so they are not
IO bound. The Site I am testing with is a ftp server located in a colo
facility that we use and has sufficient bandwidth. This circuit is clean in
the sense of not having CRC, framing or other errors but this is a new
circuit and we have never gotten more than 5Mbps out of a single session
(flow/ip) across the wan. I would have to double check the mtu, but it is
currently the default.
--
Brian Raaen
Network Engineer
braaen at zcorum.com
On Monday 07 April 2008, Brian Raaen wrote:
> I am currently having problems get upload bandwidth on a Sprint circuit. I
am
> using a full OC3 circuit. I am doing fine on downloading data, but
uploading
> data I can only get about 5Mbps with ftp or a speedtest. I have tested
> against multiple networks and this has stayed the same. Monitoring Cacti
> graphs and the router I do get about 30Mbps total traffic outbound, but
> individual (flows/ip?) test always seem limited. I would like to know if
> anyone else sees anything similar, or where I can get help. The assistance
I
> have gotten from Sprint up to this point is that they find no problems. Due
> to the consistency of 5Mbps I am suspecting rate limiting, but wanted to
know
> if I was overlooking something else.
>
> --
> Brian Raaen
> Network Engineer
> braaen at zcorum.com
>
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