F5 LTM Troubleshooting- Things to check if Pool member is down

Check if the server is reachable from the F5 Load balancer [root@bigip118:Active:Standalone] config # ping 172.16.20.10 PING 172.16.20.10 (172.16.20.10) 56(84) bytes of data. 64 bytes from 172.16.20.10: icmp_seq=1 ttl=255 time=3.83 ms 64 bytes from 172.16.20.10: icmp_seq=2 ttl=255 time=2.88 ms ———————————————————— If you want to ping from particular vlan you can specify vlan name after –I [...]

Important CLI commands for F5 LTM

TMOS commands run util bash -enable shell show sys self-ip -show self IP’s show ltm persistence persist-records -show persistence records list ltm node [node_address] -show node status modify ltm node [node_address] down -disable node modify ltm node [node_address] up -enable node modify net packet-filter all logging enabled -enable logging for all packet filters delete ltm [...]

BIG-IP F5 LTM Load balancing methods

BIG-IP LTM provides a variety of load balancing methods to choose from. There are two types of load balancing methods. statistic load balancing method / mode. dynamic load balancing mode. 1. statistic load balancing mode:- There are two static load balancing modes. 1.Round robin 2.Ratio 2..Dynamic load balancing mode:- 1.least connections 2.fastest 3.observed 4.predictive 5.dynamic [...]