RE: ISPAK: Very Interesting !!

[Naeem Haq]

Jamal ,

 

Yes , the observation is correct , and this problem can be easily rectified if the STM1 is not connected directly to the Genuity ( west coast ) , but rather some carrier on the east coast . By connecting to Genuity on the west coast it will create an additonal delay which can be avaoided . I think we need to apprise PTCL of this situation who should push Singtel to provide the appropriate connectivity in NYC .

 

The delay introduced on the link will render this link almost USELESS for Call Centers , thus PTCL needs to make a decision on this very soon .

 

Thanks ,

 

[Naeem Haq] 

 

 -----Original Message-----
From: Jamal Nasir Khan [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 26, 2001 3:02 PM
To: Naeem Haq
Cc: SANAULLAH BHUTTA; Prof. Atta-ur-Rahman; [EMAIL PROTECTED]
Subject: Re: ISPAK: Very Interesting !!

Naeem,

As per PTCL the STM1 is getting terminated on Singtel IX router in 60 Hudson, the IP you are referring is I guess bind to this router. The round trip delay between Karachi and NewYork on this link has been observed in the range of 200 - 220 ms.  To make thing worst, Singtel router is not connecting the STM1 to any Tier 1 link in NewYork, ( which should have been done ideally ) instead it is connected to another STM1 which connects  East Coast to West Coast and thus produces another delay of 130 ms and then gets terminated into Genuity. I really dont know what were the assumptions or why was this design approved, but surely this accumulated delay of 350 ms could have been avoided easily and much more efficiency could have been derived not only on cost but the throughput as well by avoiding this link between East & West Coast.

In addition uptil now, nothing has been done to provide a committed grade of service. I guess we will end up with same GoS which we all are observing on Shared Router Port Service and have shown our resentment to PTCL and needless to say we are also required to maintain QoS as well.

Regards,

Jamal

Naeem Haq wrote:

 Jamal , Have a look at this .... I have traced a lot of sites through the STM1 link , and all go through 203.208.147.85 , which is located in Singapore . So basically , PTCL goes to Singapore , and from there on possibly travels within the Singtel network to core , and then takes Genuity , Exodus  , Level3 or other backbone to the US . For the East coast , this is the longest possible trip as you travel not 50% around the globe but nearly 70% around the globe . Not only is the PTCL connectivity design flawed towards the delivery side , but also is a completely ineffecient . Moreso , I dont know what PTCL means " Qwest backbone "  , I confirmed this from other sources and was told this is "Genuity" backbone .... but lets call spade a spade.... this is SINGTEL backbone routed out of SINGAPORE !  This is also accounts for the high round trip delays etc . Either I think this current situation is a temporary situation ... or else PTCL has really messed up on this one !   203.135.41.17 8 msec 4 msec 16 msec
  2 202.125.159.1 36 msec 44 msec 36 msec
  3 203.208.147.85 260 msec 256 msec 236 msec
  4 203.208.154.101 236 msec 260 msec 236 msec
  5 203.208.154.17 364 msec 368 msec 352 msec
  6 POS2-0.paix-core1.ix.singtel.com (202.160.250.46) 348 msec 352 msec 352 msec
  7 paix.exodus.net (198.32.176.15) 352 msec 352 msec 352 msec
  8 bbr01-p4-0.sntc04.exodus.net (209.185.249.29) 352 msec 356 msec 352 msec
  9 bbr02-g2-1.sntc04.exodus.net (216.34.2.52) 368 msec 352 msec 356 msec
 10 bbr02-p1-0.stng02.exodus.net (209.185.9.114) 432 msec 420 msec 432 msec
 11 bbr02-p5-0.stng01.exodus.net (209.185.9.1) 412 msec 416 msec 412 msec
 12 dcr04-g9-0.stng01.exodus.net (216.33.96.146) 416 msec 436 msec 412 msec
 13 csr21-ve241.stng01.exodus.net (216.33.98.18) 412 msec 416 msec 412 msec
 14 216.35.210.122 416 msec 412 msec 412 msec
 15 www.yahoo.akadns.net (64.58.76.178) 412 msec 412 msec 412 msecPlease do investigate this further , as this circuit route is quite interesting . Whats even more interesting is that these nodes like 203.208.147.85  have not even been named . Naeem HaqNEXLINX

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jamal Nasir Khan
Sent: Friday, July 20, 2001 6:37 PM
To: Director IT
Cc: SANAULLAH BHUTTA; Prof. Atta-ur-Rahman; [EMAIL PROTECTED]; Rizwan Tauqir Ahmad; Chairman
Subject: ISPAK: Re: Letter to ISPs
 

Director IT:

Attached please find the document which explains the issues and resolution behind the caching problems in the safgame web site.

All ISPs:

Please review and adjust the cache settings as recommended.

Best regards,

Jamal

SANAULLAH BHUTTA wrote:

 Dear Member ISPAK,AoA, We would welcome the feed-back from  Mr.Jamal Nasir Khan  Chairman Technical Committee and his members the feed-back to play best role of  all ISP on the subject . Each and every ISP is  requested to do the needful as follow  in the best interest of  Pakistan.Please let me know your confirmation . Best regards,Sanaullah Bhutta.   Besides caching procedure I would like to make a request, if you could
evaluate the possibility of free mirroring of our website on all ISP Servers
of Pakistan. This procedure may require some motivational words from you to
all ISP owners. The site requires mirroring from now till 30 October 2001.
The technicalities of this procedure can be further worked out by a joint
effort by all of us.-----Original Message-----
From: Director IT <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Cc: Chairman <[EMAIL PROTECTED]>; Rizwan Tauqir Ahmad <[EMAIL PROTECTED]>
Date: Tuesday, July 17, 2001 4:22 PM
Subject: Fw: Letter to ISPs
 >
>Mr. Sanaullah Bhutta
>
>Dear Sir,
>    This is Lieutenant Colonel Hammad Khalid, Director IT, 9th SAF Games
>Secretariat. I am sure you are fine.
>    I am bothering you for some support and your valuable suggestion on the
>issue forwarded to you by Minister of IT. As a matter of fact I had a detail
>discussion with the Minister on this. Later he sent this letter to be
>circulated to all ISPs of Pakistan.
>    Inspite of this letter we are still facing the problem of Caching of our
>Official Website www.safgames2001.com being hosted at COMSATS Server in
>Islamabad.
>    You would appreciate that 9th SAF Games is being held with extra
>ordinary emphasis on IT. We in the Organizing Committee are making all out
>efforts to make it a land mark in IT filed of Pakistan. Projection of
>Pakistan as rapidly growing IT country is our one of the important motive.
>This website which will be converted into REAL time website during the games
>with full audio and video streaming, is going to play a major roll in this
>effort of projection of Pakistan. This website is planned to contain besides
>few of our management system, a unique feature of Ceremonies Tickets
>sale.This is the first time in Pakistan that we shall have this experience.
>I understand that our basic infrastructure of Communications is not yet
>fully geared up for such a venture. But still we can do a lot with the help
>of each other.
>    The purpose of this premise is that the caching by ISPs of Pakistan is
>an issue due to which our visitors on the website are facing lots of
>difficulties on updation and viewing the site regularly.
>    Besides caching procedure I would like to make a request, if you could
>evaluate the possibility of free mirroring of our website on all ISP Servers
>of Pakistan. This procedure may require some motivational words from you to
>all ISP owners. The site requires mirroring from now till 30 October 2001.
>The technicalities of this procedure can be further worked out by a joint
>effort by all of us.
>    I shall be looking forward to an encouraging and befitting response.
>
>Thanks
>
>Lieutenant Colonel Hammad Khalid
>Director IT,
>9th SAF Games Secretariat,
>Pakistan Sports Complex,
>Islamabad.
>
>Telephone :  Office:    051-9210036
>                    Res        051-4435848
>Mobile:                       0333-5114674
>
>
>----- Original Message -----
>From: "Prof. Atta-ur-Rahman" <[EMAIL PROTECTED]>
>To: "Sanaullah Bhutta" <[EMAIL PROTECTED]>
>Cc: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
>Sent: Wednesday, June 27, 2001 2:06 PM
>Subject: Letter to ISPs
>
>
>> Dear Sir,
>>
>> I am directed to enclose herewith a letter of Minister for Science and
>> Technology for circulation to all ISPs in Pakistan.
>>
>> Thanking you,
>>
>> --
>> Abdul Haleem Asghar
>> Director to the Minister
>> D-Block Pak Secretariat
>> Islamabad 44000
>> Pakistan
>>
>> Tel: 92 51 920 2502, 9208026
>> Fax: 92 51 920 5233
>>
>>
>