Learn F5 Technologies, Get Answers & Share Community Solutions Join DevCentral

Filter by:
  • Solution
  • Technology
Answers

F5 Connection Rate Limit for VIP

Has anyone implemented Connection Rate Limit under the Virtual Servers -Advanced Configuration what do clients see after the particular rate limit is setup for a VIP.

0
Rate this Question

Answers to this Question

placeholder+image
USER ACCEPTED ANSWER & F5 ACCEPTED ANSWER

Clients sending requests after the Connection Rate Limit has been exceeded will receive TCP packet in response where RST flag is set to 1. Or in other words, just "Connection Reset".

Note that this applies to entirely new connection attempts (handshakes), any existing connections will not be interrupted in case of threshold breach.

0
Comments on this Answer
Comment made 31-Jan-2017 by Joe Lupo 54

To piggy-back on this conversation. I need to know how to get a server back to "Available" once it has hit the rate limit. In one post I saw somewhere it was stated to set the Connection Rate Limit to "0" to get the Virtual Server back to "Available", but I want to keep a Connection Rate Limit on this VS, but get the VS back to "Available". Currently, no matter how high I set the Connection Rate Limit the VS goes back to "Unavailable (Enabled) - The virtual server's rate limit has been reached".

Any insight??

0
Comment made 18-Feb-2017 by Hannes Rapp 3890

Hi,

"Currently, no matter how high I set the Connection Rate Limit the VS goes back to "Unavailable (Enabled)"

Before the limit is breached, the status should be Green or Blue (depending on if you use health-check monitors against pool members). Only after the limit is breached, it should switch to Yellow. Recommend to contact support with that, seems like unintended outcome.

0
placeholder+image
USER ACCEPTED ANSWER & F5 ACCEPTED ANSWER

Clients sending requests after the Connection Rate Limit has been exceeded will receive TCP packet in response where RST flag is set to 1. Or in other words, just "Connection Reset".

This is not true. It still works for not limited clients, which is how it is supposed to work...

0
Comments on this Answer
Comment made 18-Feb-2017 by Hannes Rapp 3890

I think the next sentence pretty much clarifies what you have elaborated.

0
Comment made 19-Feb-2017 by nbnb 1

sorry i exprimed myself badly, i meant it will work for new clients.

0