ACE 4710 HTTP Probes

[Andy Johnson]

Using the ACE 4710 for loadbalancing a Sharepoint site.

We currently have a HTTP probe setup to check the port 80 status of the rserver.

Is there anyway to get the HTTP probe to check a DNS entry for each of the application sites? For instance http://info vs http://site are two different web sites running on the same IP. One site could have a problem but the actual port 80 for the IP may be still alive.

Thanks for any information.

[Pablo]

Hi Andy

If you have a single web server hosting multiple sites where the
individual web sites are differentiated by the "Host" header in the HTTP
requests. In order to probe these types of sites, it is necessary to
specify this header, using the "header" command, eg.

*******************************************

Here is an example

probe http Site
  request method head url /url1.html
  expect status 200 200
  header Host header-value "info.com"

  interval 15

  open 1

probe http Info
  request method head url /index.html
  expect status 200 200
  header Host header-value "site.com"

  interval 15

  open 1

rserver host Sharepoint
  ip address 172.16.35.11
  inservice

serverfarm host Site
  rserver Sharepoint
  probe Site
  inservice

serverfarm host Info
  rserver Sharepoint
  probe Info
  inservice

**************************************

In the above example, a regular HTTP HEAD will be sent to the Sharepoint service
specifying the Host header as info.com and site.com

Hope this helps.

___ ___

Pablo

Cisco TAC