49.51.

openstack loadbalancer listener create [-h]
                                              [-f {json,shell,table,value,yaml}]
                                              [-c COLUMN] [--noindent]
                                              [--prefix PREFIX]
                                              [--max-width <integer>]
                                              [--fit-width] [--print-empty]
                                              [--name <name>]
                                              [--description <description>]
                                              --protocol
                                              {TCP,HTTP,HTTPS,TERMINATED_HTTPS,UDP,SCTP}
                                              [--connection-limit <limit>]
                                              [--default-pool <pool>]
                                              [--default-tls-container-ref <container_ref>]
                                              [--sni-container-refs [<container_ref> ...]]
                                              [--insert-headers <header=value,...>]
                                              --protocol-port <port>
                                              [--timeout-client-data <timeout>]
                                              [--timeout-member-connect <timeout>]
                                              [--timeout-member-data <timeout>]
                                              [--timeout-tcp-inspect <timeout>]
                                              [--enable | --disable]
                                              [--client-ca-tls-container-ref <container_ref>]
                                              [--client-authentication {NONE,OPTIONAL,MANDATORY}]
                                              [--client-crl-container-ref <client_crl_container_ref>]
                                              [--allowed-cidr [<allowed_cidr>]]
                                              [--wait]
                                              [--tls-ciphers <tls_ciphers>]
                                              [--tls-version [<tls_versions>]]
                                              [--alpn-protocol [<alpn_protocols>]]
                                              [--tag <tag> | --no-tag]
                                              <loadbalancer>