Dear Group member, We are level one ISP. one of my customer is connected to fast ethernet. His link speed 100,000 kbps. while downloading any thing from net he downloading speed donot go above 200 kbps. While doing multiple download he get aroung 200 kbps in every window. But when he close all the windows no change in downloading speed is observed. our router is C12KPRP-K4P-M Please advise what could be the cause? -- Regards Chandrashakher Pawar IPNOC Customer & Services Operations Tata communication AS6453 mobil + 91 9225633948 + 91 9324509268 learn.chandra@gmail.com
link speed duplex mismatch ? --- Nuno Vieira nfsi telecom, lda. nuno.vieira@nfsi.pt Tel. (+351) 21 949 2300 - Fax (+351) 21 949 2301 http://www.nfsi.pt/ ----- "chandrashakher pawar" <learn.chandra@gmail.com> wrote:
Dear Group member,
We are level one ISP. one of my customer is connected to fast ethernet. His link speed 100,000 kbps. while downloading any thing from net he downloading speed donot go above 200 kbps. While doing multiple download he get aroung 200 kbps in every window. But when he close all the windows no change in downloading speed is observed.
our router is C12KPRP-K4P-M
Please advise what could be the cause?
-- Regards
Chandrashakher Pawar IPNOC Customer & Services Operations Tata communication AS6453 mobil + 91 9225633948 + 91 9324509268 learn.chandra@gmail.com
chandrashakher pawar wrote:
Dear Group member,
We are level one ISP. one of my customer is connected to fast ethernet. His link speed 100,000 kbps. while downloading any thing from net he downloading speed donot go above 200 kbps. While doing multiple download he get aroung 200 kbps in every window. But when he close all the windows no change in downloading speed is observed.
our router is C12KPRP-K4P-M
Please advise what could be the cause?
Most likely: http://www.google.com/search?q=tcp+tuning Also check for duplex mismatch, cable problems, interface errors, etc. Also verify that you're comparing the same units, bits vs bytes. -- Jay Hennigan - CCIE #7880 - Network Engineering - jay@impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV
On Fri, Apr 17, 2009 at 5:23 PM, chandrashakher pawar <learn.chandra@gmail.com> wrote:
our router is C12KPRP-K4P-M
Please advise what could be the cause?
Could you perhaps paste the router configuration in your reply? If you could execute a "wr t" or a "show run", that should provide sufficient information for the proper troubleshooting to take place. Thank you. Paul Wall (Drive Slow)
chandrashakher pawar wrote:
We are level one ISP. one of my customer is connected to fast ethernet. His link speed 100,000 kbps. while downloading any thing from net he downloading speed donot go above 200 kbps. While doing multiple download he get aroung 200 kbps in every window. But when he close all the windows no change in downloading speed is observed.
As others have mentioned, duplex mismatch is a good cause. If you have a client with java support, give the NDT a try as this is something it claims to detect: http://ndt.anl.gov:7123/ There's a master site list available here so you may wish to find a closer test site: http://e2epi.internet2.edu/ndt/ndt-server-list.html Caveat: I think most of them are Internet2 only. I know the ANL and CERN sites are accessible to us but didn't try them all. Mike
Duplex Mismatch looks to be the problem. On Fri, Apr 17, 2009 at 3:23 PM, chandrashakher pawar < learn.chandra@gmail.com> wrote:
Dear Group member,
We are level one ISP. one of my customer is connected to fast ethernet. His link speed 100,000 kbps. while downloading any thing from net he downloading speed donot go above 200 kbps. While doing multiple download he get aroung 200 kbps in every window. But when he close all the windows no change in downloading speed is observed.
our router is C12KPRP-K4P-M
Please advise what could be the cause?
-- Regards
Chandrashakher Pawar IPNOC Customer & Services Operations Tata communication AS6453 mobil + 91 9225633948 + 91 9324509268 learn.chandra@gmail.com
-- -B
Dear Members, Thanks for your help and valuable information. ============================ Finally the issue resolved after card reset. Case has been book with Cisco. I will update you with the outcome of Cisco once they update us... Thanks Chandrashakher pawar On Sat, Apr 18, 2009 at 1:08 AM, b nickell <nickellman@gmail.com> wrote:
Duplex Mismatch looks to be the problem.
On Fri, Apr 17, 2009 at 3:23 PM, chandrashakher pawar < learn.chandra@gmail.com> wrote:
Dear Group member,
We are level one ISP. one of my customer is connected to fast ethernet. His link speed 100,000 kbps. while downloading any thing from net he downloading speed donot go above 200 kbps. While doing multiple download he get aroung 200 kbps in every window. But when he close all the windows no change in downloading speed is observed.
our router is C12KPRP-K4P-M
Please advise what could be the cause?
-- Regards
Chandrashakher Pawar IPNOC Customer & Services Operations Tata communication AS6453 mobil + 91 9225633948 + 91 9324509268 learn.chandra@gmail.com
-- -B
Hey Chandra, You should check with your VP of IP Engineering, I have heard tell that he is a ³hard core engineer². I am sure he could have solved your problem. Cheers - On 4/18/09 1:50 PM, "chandrashakher pawar" <learn.chandra@gmail.com> wrote:
Dear Members,
Thanks for your help and valuable information.
============================
Finally the issue resolved after card reset.
Case has been book with Cisco.
I will update you with the outcome of Cisco once they update us...
Thanks Chandrashakher pawar
On Sat, Apr 18, 2009 at 1:08 AM, b nickell <nickellman@gmail.com> wrote:
Duplex Mismatch looks to be the problem.
On Fri, Apr 17, 2009 at 3:23 PM, chandrashakher pawar < learn.chandra@gmail.com> wrote:
Dear Group member,
We are level one ISP. one of my customer is connected to fast ethernet. His link speed 100,000 kbps. while downloading any thing from net he downloading speed donot go above 200 kbps. While doing multiple download he get aroung 200 kbps in every window. But when he close all the windows no change in downloading speed is observed.
our router is C12KPRP-K4P-M
Please advise what could be the cause?
-- Regards
Chandrashakher Pawar IPNOC Customer & Services Operations Tata communication AS6453 mobil + 91 9225633948 + 91 9324509268 learn.chandra@gmail.com
-- -B
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participants (7)
-
b nickell -
chandrashakher pawar -
Jay Hennigan -
John Sweeting -
Mike Lewinski -
Nuno Vieira - nfsi telecom -
Paul Wall