Floating IPs and VIPs stop responding after a VMotion
I have many active/standby pairs of VEs hosted in VMWare ESXi 6.0, 6.5, and 6.7. Our organization puts an insane amount of weight on availability. We have noticed that it is significantly less impactful to our various applications to Vmotion a F5 rather than fail over to the peer and Vmotion in standby state. There is a catch though. The F5 does not initiate outbound traffic on subnets that are dedicated for VIPs and thus the CAM table on the upstream switch does not get updated and traffic is black holed. This is not an issue for the majority of our VIP subnets because there is always some traffic coming and going on it but in some environments, where a VIP subnet is relatively quiet, traffic is black holed until the table on the switch times out. I can fix this for self IPs by creating a pool with the SVI in it and an ICMP monitor. I have not found a way to fix this for floating IPs and VIPs short of doing a fail over to force a GARP. I could create a forwarding VIP in each of the subnets and stick VMs behind them to constantly send pings but this would be a logistical nightmare. Any thoughts?
VE F5 not passing tagged vlan traffic across Vxrail ESXI
Hi Guys, Been working on this and cannot come to a conclusion, our VE F5 which sits in an esxi enclosure, does not work when tagged vlan is configured (this is the way, rest of the other VE F5s are configured across the estate). However If we untag 1 vlan (and only allows you to untag 1 vlan on the VE) This works for the backend server and traffic passes as we can now see the pool members up, however the front end sits on another vlan and we cannot untag. The only difference is the other f5s sit on a 'UCS' or HP chassis and the problematic one sits on the 'vxrail'. my f5 version is 12.1.2 HF2 And the ESXI is version 6.0. Many thanks if someone can give me a descent answer, i have read most of the forums and nothing helpful.
Virtual BIG-IQ uses a lot of cpu
Hi Is it normal that a virtual BIG-IQ uses almost 7ghz from a esxi host. Also the cpu is always at around 80-85 % if I check the cpu under monitor on the server itself. Its only used to manage licenses and not BIG-IP systems so it should idle most of the time. Best regards Daniel
