RE: Distributed Director [7:5794]
Distributed Director works great when used in conjunction with Local Directors spread across multiple sites. When deploying DD bear in mind that the DD merely determines the best server (webfarm) that can service the client, based on configurable parameters, then returns the IP address of the server to the client. This means that the DD is authoritative over the subdomain (www.abc.com). The primary DNS server for abc.com needs to have an NS entry in its zone file for the DD. I guess the most important part of the deployment is how the DD determines the best server. It can use feedback from edge routers (DFP) to determine the server closest to the client. This is quite sophisticated, and can include BGP attributes (such as AS-Path), and RTT. Hope this helps. CM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: 24 May 2001 22:32 To: [EMAIL PROTECTED] Subject: Distributed Director [7:5794] Anyone have any real world experience with the Distributed Directors (4700-M) ? Any pointers would be much appreciated. Thanks, Duncan Duncan Wallace Network Engineer 800.COM Inc. 1516 NW Thurman St Portland, OR 97209-2517 Direct: 503.944.3671 Cell: 503.969.8248 Fax: 503.943.9371 Web: http://800.com Email: [EMAIL PROTECTED] FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=5892t=5794 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Distributed Director [7:5794]
Thanks for the info. Duncan -Original Message- From: Charles Manafa [mailto:[EMAIL PROTECTED]] Sent: Friday, May 25, 2001 3:29 AM To: [EMAIL PROTECTED] Subject: RE: Distributed Director [7:5794] Distributed Director works great when used in conjunction with Local Directors spread across multiple sites. When deploying DD bear in mind that the DD merely determines the best server (webfarm) that can service the client, based on configurable parameters, then returns the IP address of the server to the client. This means that the DD is authoritative over the subdomain (www.abc.com). The primary DNS server for abc.com needs to have an NS entry in its zone file for the DD. I guess the most important part of the deployment is how the DD determines the best server. It can use feedback from edge routers (DFP) to determine the server closest to the client. This is quite sophisticated, and can include BGP attributes (such as AS-Path), and RTT. Hope this helps. CM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: 24 May 2001 22:32 To: [EMAIL PROTECTED] Subject: Distributed Director [7:5794] Anyone have any real world experience with the Distributed Directors (4700-M) ? Any pointers would be much appreciated. Thanks, Duncan Duncan Wallace Network Engineer 800.COM Inc. 1516 NW Thurman St Portland, OR 97209-2517 Direct: 503.944.3671 Cell: 503.969.8248 Fax: 503.943.9371 Web: http://800.com Email: [EMAIL PROTECTED] FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=5923t=5794 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Distributed Director [7:5794]
How about a rumour that Distributed Director may be end of life soon. Any substance to it do you think? Arrowpoint (CSS11K) a suitable replacement? I think so, anybody care to comment. wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Thanks for the info. Duncan -Original Message- From: Charles Manafa [mailto:[EMAIL PROTECTED]] Sent: Friday, May 25, 2001 3:29 AM To: [EMAIL PROTECTED] Subject: RE: Distributed Director [7:5794] Distributed Director works great when used in conjunction with Local Directors spread across multiple sites. When deploying DD bear in mind that the DD merely determines the best server (webfarm) that can service the client, based on configurable parameters, then returns the IP address of the server to the client. This means that the DD is authoritative over the subdomain (www.abc.com). The primary DNS server for abc.com needs to have an NS entry in its zone file for the DD. I guess the most important part of the deployment is how the DD determines the best server. It can use feedback from edge routers (DFP) to determine the server closest to the client. This is quite sophisticated, and can include BGP attributes (such as AS-Path), and RTT. Hope this helps. CM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: 24 May 2001 22:32 To: [EMAIL PROTECTED] Subject: Distributed Director [7:5794] Anyone have any real world experience with the Distributed Directors (4700-M) ? Any pointers would be much appreciated. Thanks, Duncan Duncan Wallace Network Engineer 800.COM Inc. 1516 NW Thurman St Portland, OR 97209-2517 Direct: 503.944.3671 Cell: 503.969.8248 Fax: 503.943.9371 Web: http://800.com Email: [EMAIL PROTECTED] FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=5989t=5794 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Distributed Director [7:5794]
Anyone have any real world experience with the Distributed Directors (4700-M) ? Any pointers would be much appreciated. Thanks, Duncan Duncan Wallace Network Engineer 800.COM Inc. 1516 NW Thurman St Portland, OR 97209-2517 Direct: 503.944.3671 Cell: 503.969.8248 Fax: 503.943.9371 Web: http://800.com Email: [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=5794t=5794 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Distributed Director [7:5794]
I use one for load balancing between two IIS servers. One server in Jersey and one in Richmond VA. Basically a www request gets forwarded to the Dis Dir. by the DNS server and then the router picks either of the two servers at random to send the user to the intranet home page. The servers are replicated with Veritas replication exec at the www level so they have the same web content. The director polls each of the servers every 20 secs on port 80 to confirm that web content is available. If one of the servers is down then the user is always forwarded to the server that is up. I have the older version though. I believe there is a lot more functionality to the newer models. Bryan - Original Message - From: To: Sent: Thursday, May 24, 2001 5:32 PM Subject: Distributed Director [7:5794] Anyone have any real world experience with the Distributed Directors (4700-M) ? Any pointers would be much appreciated. Thanks, Duncan Duncan Wallace Network Engineer 800.COM Inc. 1516 NW Thurman St Portland, OR 97209-2517 Direct: 503.944.3671 Cell: 503.969.8248 Fax: 503.943.9371 Web: http://800.com Email: [EMAIL PROTECTED] FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] - Original Message - From: To: Sent: Thursday, May 24, 2001 5:32 PM Subject: Distributed Director [7:5794] Anyone have any real world experience with the Distributed Directors (4700-M) ? Any pointers would be much appreciated. Thanks, Duncan Duncan Wallace Network Engineer 800.COM Inc. 1516 NW Thurman St Portland, OR 97209-2517 Direct: 503.944.3671 Cell: 503.969.8248 Fax: 503.943.9371 Web: http://800.com Email: [EMAIL PROTECTED] FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=5846t=5794 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
