The default timeout is 5s. Set to 0 or none to disable the timeout.
Examples
# Enable from any source
proxyprotocol
# Enable from local subnet and fixed IP
proxyprotocol 10.22.0.0/16 10.23.0.1/32
# Set header timeout
proxyprotocol 10.22.0.0/16 10.23.0.1/32 {
timeout 5s
}