Forum Discussion
NimbostratusHow F5 monitor both Webserver on Internal and Content server on External
Hi
I have F5 load balance webserver which reside in Internal VLAN
At first I using monitor on Webserver but I not sure it is enough in every condition
So customer said they want F5 to monitor Content server in External VLAN too
- If content server fail > Mark webserver down (there is a case where content server fail but webserver not down so we may have to monitor both content server and web server )
How Can I do this kind of monitoring? DO I need to do external monitor or just add second monitor to check content server (http transparent on webserver & set alias=content server) ?
Environment is like this picture below
6 Replies
Vitaliy_SavransNacreous
Hi, you can add second monitor to check content server.
kridsanaCirrocumulus
So how traffic traverse? go to Web server first and then direct to content server ? or F5 just monitor content server and use that result on Monitor which assign to webserver?
giltjr_32735Does the F5 interact directly to the content server under normal circumstances? Meaning, is it a member of a pool that the F5 directs traffic to? If so then the F5 should monitor it directly. What do you plan to do in the F5 if the content server is down?- kridsanaF5 interact with only webserver. and then webserver get content from content server on outside. If content server down , F5 should monitor mark webserver down too. So it mean. Webserver should have at least 2 monitor ... 1. monitor webservice 2. monitor content server
kunjanIf you have only one content server, you might be able to create a 2nd monitor by specifying the 'Alias Address' and 'Alias Service Port'. Then attach both to the 'Health Monitor' for the web server pool. If more than one content server it might get tricky. The better approach would be check for specific content which web server pulls from the content server.
