priority group activation
15 Topicspriority group activation
Hi all, I used f5 priority group activation When my pool member fail and the second pool member come to active the traffic forward to the lower group pool member, But when the higher pool member goes up, the active connections stay on the lower group. Any built-in solution for stopping connections to the lower group and forwarding existing connections to the higher priority group meme er that come back?1.2KViews0likes10CommentsF5 Priority Group Activation _ Fallback
Hi All, I am newbie learning F5 load-balancing. It would like to clarify one of my doubt in Priority Group Activation. Lets say I have below servers in a pool with Activation Number set to 2. S1 - 10 S2 - 9 S3 - 8 S4 - 7 > So at first S1 and S2 will be elected for loadbalancing. At failure of S1, S3 will be added into the pool for loadbalancing. > What is S1 comes back, will any election happen again to include S1 back to pool? If yes, will S3 continue to stay to serve existing active connections, but removed from loadbalacing for new connections?699Views0likes2Commentspriority groups and priority group activation
Hi, newbie here. I have a VS setup with 1 pool, that has 4 members. 2 members are set in a priority group with no.10, the other 2 in priority group with no.5. Priority group activation is set to Less than 1 available member. So, the requirement now is, when either of the members fail in PG10, traffic needs to go to PG5, regardless if the other member in PG10 is available. So essentially traffic gets failed over and stays there. And the same scenario for when PG5 loses a member. Traffic needs to go back to PG10 and stay there. Question is, can this be done? And are priority groups and PG activation the way to go for this? Is there an iRule that can facilitate this better? Thanks in advance for any responses, hope the explanation was clear enough.Solved500Views0likes2CommentsPriority Group Activiation all or nothing?
Quick question. If I have two priority groups with two servers each, and I have the activation of the lower priority priority group if less than 2 available. So we have this serverA and serverB are PrioirtyGroup 10, serverY and ServerZ are PriorityGroup 5. Scenario: Let's say serverA goes offline, thereby activating PriorityGroup 5. My question is, I know serverY and serverZ are activated now, however is serverB still active as well? serverB, serverY, and serverZ are active in the pool? Sorry for the confusion, but just want some clarification.Solved442Views0likes4CommentsPriority Group Activation Secondary Node
I want to keep all new and existing traffic on a secondary node after a failure and resumption of the primary. This is a very flaky application, however, so we would like to fail back to the primary if the secondary fails without manual intervention- meaning manual resume is off the table. Any ideas? Thanks!371Views0likes3CommentsPriority Group Activation/Destination Persistence
Below is an example of what I am looking to achieve: Priority Group Activation enabled - less than 1 available member(s) Server1 - priority 2 Server2- priority 1 Server1 goes offline and all connections are now routed to Server2. Server1 comes back online but all connections will continue to route to Server2 - until Server2 fails its health check - returning all traffic to Server1. Is this achieved with Priority Group Activation AND Destination Address persistence? If Server1 comes back online and the persistence entry has timed out, will the next connection attempt be routed to Server2 or will it return to the higher priority group member - Server1?335Views0likes1CommentPGA and Priority Group together.
Hello Folks, Having a doubt about PGA and Priority Groups on the pool members. As per the documentation you have to use the 2 together: "This setting is used in tandem with the pool feature known as priority group activation. You use the priority group activation feature to configure the minimum number of members that must be available before the BIG-IP system begins directing traffic to members in a lower priority group." So if I configure the pool members with their respective priority group but do not set a "less than" for the PGA, that means that the priority on the members will not take effect and the requests will be balanced in a round-robin fashion if that is the load balance method configured? Thanks.313Views0likes2CommentsLTM :: Active/Active pool member configuration
Hello, I would like to configure two priority groups each having 2 pool members (total 4 servers under the same pool). let us call them Group A & Group B and Group A has higher priority than group B. I know when all the servers in Group A go down, Group B becomes active and fails back to A when one of the members in Group A comes back up. However, I do not want Group B to fail back to Group A when one of the member in A comes up. Can this be done in LTM ? Thanks308Views0likes2CommentsSelective Priority Group Activation
My question: I have a set-up in which a pool contains 8 members: 4 at priority level 1 and 4 at priority level 2 I want traffic to be directed to the primary members (priority level 2) until the point at which there is only 1 member remaining (judged dead by a health monitor). At this point I want traffic to be routed entirely to priority level 1 pool members and not at all to the last remaining level 2 member. I looked at Priority Group Activation, but this seems to start supplementing priority level 2 members with members from the lower priority pool... rather than switching all traffic to the lower priority pool at a specified point. I do not want to set the Priority Group Activation "Less than 1", which would leave me with only 1 server in priority group 2; would result in all traffic flowing through a single box. Using priority group activation appears to mix traffic between separate priority groups - I want to use one or another... but switch to the lower priority entirely at a specific point. Any help appreciated Any help in posting would be appreciated.278Views0likes1CommentPriority group activation - what if lowest priority group has less servers than the "less than" setting?
Say we have the following setup: Priority group 2: 4 servers Priority group 1: 2 servers Activation: less than 3 servers How will this behave when we lose 2 servers from priority group 2? At that point it will meet the "less than 3 servers" criteria to trigger pg1 ... but that group ALSO has < 3 servers, right when it gets activated. Will traffic at that point nevertheless be flowing to the remaining 2 servers in pg2, AND to the 2 servers in pg1? Thx!276Views0likes4Comments