Re: vpn speed [7:13499]
I could be off here...but I believe the accelerator card only helps the cpu intense part of encrypting/decrypting traffic. You would still be limited to internet speed which involves amount of traffic between endpoints, etc. Maximum would be 128K unless you have alot of traffic going through that can be compressed. In that case that traffic can go faster than 128K but most files that can be compressed on the fly with noticable difference are uncompressed files such as .bmp, .txt, comma delimited files, etc. Allen - Original Message - From: Farhan Ahmed To: Sent: Tuesday, July 24, 2001 9:33 AM Subject: vpn speed [7:13499] lets say we have 2 cisco 1720 with vpn accelerator card and both have a 64k connection to internet what would be the speed of the tunnel Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13507t=13499 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: vpn speed [7:13499]
He said both had 64K connection to the internet. And on my ISDN I have 128K but about 20-30% of the time I get more than that with data compression. Try downloading a really big .bmp file sometime watch 56K download at like 100K...rofl. It works ;) - Original Message - From: Patrick Ramsey To: ; Sent: Tuesday, July 24, 2001 9:57 AM Subject: Re: vpn speed [7:13499] I'm not exactly sure where the 128k came into play but you are right about end point to endpoint. If either of the ends tops out at 64k, then the throughput will only be 64k. Regardless of compression/and or vpn acceleration. -Patrick Allen May 07/24/01 11:02AM I could be off here...but I believe the accelerator card only helps the cpu intense part of encrypting/decrypting traffic. You would still be limited to internet speed which involves amount of traffic between endpoints, etc. Maximum would be 128K unless you have alot of traffic going through that can be compressed. In that case that traffic can go faster than 128K but most files that can be compressed on the fly with noticable difference are uncompressed files such as .bmp, .txt, comma delimited files, etc. Allen - Original Message - From: Farhan Ahmed To: Sent: Tuesday, July 24, 2001 9:33 AM Subject: vpn speed [7:13499] lets say we have 2 cisco 1720 with vpn accelerator card and both have a 64k connection to internet what would be the speed of the tunnel Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13511t=13499 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: vpn speed [7:13499]
I'm not exactly sure where the 128k came into play but you are right about end point to endpoint. If either of the ends tops out at 64k, then the throughput will only be 64k. Regardless of compression/and or vpn acceleration. -Patrick Allen May 07/24/01 11:02AM I could be off here...but I believe the accelerator card only helps the cpu intense part of encrypting/decrypting traffic. You would still be limited to internet speed which involves amount of traffic between endpoints, etc. Maximum would be 128K unless you have alot of traffic going through that can be compressed. In that case that traffic can go faster than 128K but most files that can be compressed on the fly with noticable difference are uncompressed files such as .bmp, .txt, comma delimited files, etc. Allen - Original Message - From: Farhan Ahmed To: Sent: Tuesday, July 24, 2001 9:33 AM Subject: vpn speed [7:13499] lets say we have 2 cisco 1720 with vpn accelerator card and both have a 64k connection to internet what would be the speed of the tunnel Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13510t=13499 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: vpn speed [7:13499]
the line speed is ALWAYS 64K yes you can use compression, and the net result end to end of user data MAY be higher. but the line itself can only transmit 64kbps subtle difference. some data formats lend themselves well to compression. gifs and jpegs and text, for example. I have seen pdf reduce word docs by as much as 90% zipping files can result in compression of anywhere from 50-80% depending on the source. on the other hand, it is possible for compression to increase the size of the data file. but in all cases, your 64K data link can not transmit more than 64K bits per second. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Farhan Ahmed Sent: Tuesday, July 24, 2001 7:33 AM To: [EMAIL PROTECTED] Subject: vpn speed [7:13499] lets say we have 2 cisco 1720 with vpn accelerator card and both have a 64k connection to internet what would be the speed of the tunnel Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13518t=13499 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: vpn speed [7:13499]
correct me if im wrong, but encryption and compression are COMPLETELY different, and in most cases, encryption results in LARGER payloads. /me hangs his head in dissapointment -Peter -Original Message- From: Patrick Ramsey [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 24, 2001 11:13 AM To: [EMAIL PROTECTED] Subject: Re: vpn speed [7:13499] I'm not exactly sure where the 128k came into play but you are right about end point to endpoint. If either of the ends tops out at 64k, then the throughput will only be 64k. Regardless of compression/and or vpn acceleration. -Patrick Allen May 07/24/01 11:02AM I could be off here...but I believe the accelerator card only helps the cpu intense part of encrypting/decrypting traffic. You would still be limited to internet speed which involves amount of traffic between endpoints, etc. Maximum would be 128K unless you have alot of traffic going through that can be compressed. In that case that traffic can go faster than 128K but most files that can be compressed on the fly with noticable difference are uncompressed files such as .bmp, .txt, comma delimited files, etc. Allen - Original Message - From: Farhan Ahmed To: Sent: Tuesday, July 24, 2001 9:33 AM Subject: vpn speed [7:13499] lets say we have 2 cisco 1720 with vpn accelerator card and both have a 64k connection to internet what would be the speed of the tunnel Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13526t=13499 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: vpn speed [7:13499]
Most definately and across 64k, damn near struggling... I can only hope the vpn is used for telnet... :) Peter Slow 07/24/01 11:53AM correct me if im wrong, but encryption and compression are COMPLETELY different, and in most cases, encryption results in LARGER payloads. /me hangs his head in dissapointment -Peter -Original Message- From: Patrick Ramsey [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 24, 2001 11:13 AM To: [EMAIL PROTECTED] Subject: Re: vpn speed [7:13499] I'm not exactly sure where the 128k came into play but you are right about end point to endpoint. If either of the ends tops out at 64k, then the throughput will only be 64k. Regardless of compression/and or vpn acceleration. -Patrick Allen May 07/24/01 11:02AM I could be off here...but I believe the accelerator card only helps the cpu intense part of encrypting/decrypting traffic. You would still be limited to internet speed which involves amount of traffic between endpoints, etc. Maximum would be 128K unless you have alot of traffic going through that can be compressed. In that case that traffic can go faster than 128K but most files that can be compressed on the fly with noticable difference are uncompressed files such as .bmp, .txt, comma delimited files, etc. Allen - Original Message - From: Farhan Ahmed To: Sent: Tuesday, July 24, 2001 9:33 AM Subject: vpn speed [7:13499] lets say we have 2 cisco 1720 with vpn accelerator card and both have a 64k connection to internet what would be the speed of the tunnel Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13528t=13499 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: vpn speed [7:13499]
This is correct, VPN, depending on what features are implemented, can add significant size to packets. Cisco sets the default Payload size for IPSec on the PIX to 1380 to make up for the fact that there can be IPSec headers close to 120 bytes. -Original Message- From: Peter Slow [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 24, 2001 9:07 AM To: [EMAIL PROTECTED] Subject:RE: vpn speed [7:13499] correct me if im wrong, but encryption and compression are COMPLETELY different, and in most cases, encryption results in LARGER payloads. /me hangs his head in dissapointment -Peter -Original Message- From: Patrick Ramsey [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 24, 2001 11:13 AM To: [EMAIL PROTECTED] Subject: Re: vpn speed [7:13499] I'm not exactly sure where the 128k came into play but you are right about end point to endpoint. If either of the ends tops out at 64k, then the throughput will only be 64k. Regardless of compression/and or vpn acceleration. -Patrick Allen May 07/24/01 11:02AM I could be off here...but I believe the accelerator card only helps the cpu intense part of encrypting/decrypting traffic. You would still be limited to internet speed which involves amount of traffic between endpoints, etc. Maximum would be 128K unless you have alot of traffic going through that can be compressed. In that case that traffic can go faster than 128K but most files that can be compressed on the fly with noticable difference are uncompressed files such as .bmp, .txt, comma delimited files, etc. Allen - Original Message - From: Farhan Ahmed To: Sent: Tuesday, July 24, 2001 9:33 AM Subject: vpn speed [7:13499] lets say we have 2 cisco 1720 with vpn accelerator card and both have a 64k connection to internet what would be the speed of the tunnel Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13531t=13499 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: vpn speed [7:13499]
I have VPN running over 56k dialup, and it performs rather well. It's not the fastest, but it is functional. My users say it's about as fast as dialing in /w/ 28000 RAS -Original Message- From: Patrick Ramsey [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 24, 2001 9:14 AM To: [EMAIL PROTECTED] Subject:RE: vpn speed [7:13499] Most definately and across 64k, damn near struggling... I can only hope the vpn is used for telnet... :) Peter Slow 07/24/01 11:53AM correct me if im wrong, but encryption and compression are COMPLETELY different, and in most cases, encryption results in LARGER payloads. /me hangs his head in dissapointment -Peter -Original Message- From: Patrick Ramsey [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 24, 2001 11:13 AM To: [EMAIL PROTECTED] Subject: Re: vpn speed [7:13499] I'm not exactly sure where the 128k came into play but you are right about end point to endpoint. If either of the ends tops out at 64k, then the throughput will only be 64k. Regardless of compression/and or vpn acceleration. -Patrick Allen May 07/24/01 11:02AM I could be off here...but I believe the accelerator card only helps the cpu intense part of encrypting/decrypting traffic. You would still be limited to internet speed which involves amount of traffic between endpoints, etc. Maximum would be 128K unless you have alot of traffic going through that can be compressed. In that case that traffic can go faster than 128K but most files that can be compressed on the fly with noticable difference are uncompressed files such as .bmp, .txt, comma delimited files, etc. Allen - Original Message - From: Farhan Ahmed To: Sent: Tuesday, July 24, 2001 9:33 AM Subject: vpn speed [7:13499] lets say we have 2 cisco 1720 with vpn accelerator card and both have a 64k connection to internet what would be the speed of the tunnel Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13532t=13499 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: vpn speed [7:13499]
Chaps, i`m sorry i have to butt in here ... the young man in question did say he had TWO 64k links .giving him an aggreagte of 128k... also i have to agree and disagree( it not easy bieng me you know) about the line speed yes with Dial you only get 64k and that`s it but i HAVE downloaded files a LOT FASTER than that.. let me explain . at 5am on wednesdsay morning i, on my dial-up started to download a fileTo my utter surprise the file download box was saying 100k a second (that is of course impossible)..it then slowed to a hum-drum 30k a second .download time 8 mins. i tryed the same file again at 6pm (deleted original by mistake... DOH) and this time i got a lesuirely 5k per sec download time 40mins.. I can`t (be bothered to) explain it ... but it just goes to show ..never believe the download box ... the truth is out there...STOP THE SERIES...IT`S NOT THE SAME WITHOUT THEM steve who`s that behind me skinner From: Chuck Larrieu Reply-To: Chuck Larrieu To: [EMAIL PROTECTED] Subject: RE: vpn speed [7:13499] Date: Tue, 24 Jul 2001 11:55:21 -0400 the line speed is ALWAYS 64K yes you can use compression, and the net result end to end of user data MAY be higher. but the line itself can only transmit 64kbps subtle difference. some data formats lend themselves well to compression. gifs and jpegs and text, for example. I have seen pdf reduce word docs by as much as 90% zipping files can result in compression of anywhere from 50-80% depending on the source. on the other hand, it is possible for compression to increase the size of the data file. but in all cases, your 64K data link can not transmit more than 64K bits per second. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Farhan Ahmed Sent: Tuesday, July 24, 2001 7:33 AM To: [EMAIL PROTECTED] Subject: vpn speed [7:13499] lets say we have 2 cisco 1720 with vpn accelerator card and both have a 64k connection to internet what would be the speed of the tunnel _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13556t=13499 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
