Symptoms
The 'pool'/'virtual' iRule commands cause the specified pool to be used directly. However, with HTTP/2, the 'pool'/'virtual' command may fail to execute within the CLIENT_ACCEPTED event. This results in no traffic being sent.
Impact
With HTTP/2 configured, the iRule 'pool'/'virtual' commands fail to execute within the CLIENT_ACCEPTED event, causing no traffic to be sent to the desired pool/virtual.
Conditions
-- A 'pool'/'virtual' command is used under CLIENT_ACCEPTED event.
-- An HTTP/2 profile applied to virtual server.
-- The HTTP/2 protocol in use.
-- HTTP/2 Message Routing is disabled.
Workaround
As a workaround, you may use HTTP_REQUEST event instead of CLIENT_ACCEPTED in iRule syntax.
