ltm rule command MR messageΒΆ

iRule(1)		      BIG-IP TMSH Manual		      iRule(1)



MR::message
       Returns or sets details in the message routing table.

SYNOPSIS
       MR::message clone (CLONE_ID)+

   DESCRIPTION
       Clones the message number of times (as number of CLONE_IDs) then pushes
       them to the ingress queue, and makes them available at the MR_INGRESS
       iRule event again.  (CLONE_ID)+ can be one or more strings separated by
       space.  Protection against infinite loops should be considered!
       Returns the clone_count, see below, (allowed only at MR_INGRESS).

       MR::message clone -count CLONE_COUNT

   DESCRIPTION
       Clones the message CLONE_COUNT number of times then pushes them to the
       ingress queue, and makes them available at the MR_INGRESS iRule event
       again.  Clone IDs of cloned messages will be automatically assigned to:
       (clone_count_before + 1), (clone_count_before + 2), ...,
       (clone_count_before + CLONE_COUNT).  Protection against infinite loops
       should be considered!  Returns the clone_count, see below, (allowed
       only at MR_INGRESS).

       MR::message clone_count

   DESCRIPTION
       Returns the number of clones as this message (whether this message
       cloned or original).  Returns 0 if there is no cloned message as this
       message.

       MR::message clone_id

   DESCRIPTION
       Returns the clone id of the current message. Returns empty string for
       original message.

       MR::message clone_id_request

   DESCRIPTION
       For Requests and Messages: Acts the same as clone_id.  For Responses:
       Returns the clone id of the request this response belongs to.

       MR::message existing_connections_only (BOOLEAN)?

   DESCRIPTION
       Gets or sets a flag that instructs the MRF to only forward the message
       using existing connections, and if a connection to the selected host
       does not exist then the route will fail.

       MR::message outgoing_connection_instance_seed (NONNEGATIVE_INTEGER)?

   DESCRIPTION
       Gets or if been set by this iRule then this seed will be used to
       generate the connection instance number instead of this generated by
       some internal originating connection id.  (See MR::connection_instance
       iRule command).

       MR::message route

   DESCRIPTION
       Returns the contents of the route stored in the message.

       MR::message route none

   DESCRIPTION
       Clear any route already set in the message.

       MR::message route ('peer-selection-mode' | 'selection-mode' | 'mode')
       ('sequential' | 'seq' | 'ratio') ('peer' PEER)+

   DESCRIPTION
       Instructs the route table to route the message to the provided peer or
       list of peers and a peer-selection-mode. This form of the MR::message
       route command takes the names of configured peers or dynamic peers
       created via the MR::peer command.

       MR::message route ('peer' PEER)+

   DESCRIPTION
       Instructs the route table to route the message to the provided peer or
       list of peers. This form of the MR::message route command takes the
       names of configured peers or dynamic peers created via the MR::peer
       command.

       MR::message route ((
				   ('config' TRANSPORT_CONFIG
				       ('connection-mode' ('per-peer' |
       'per-blade' | 'per-tmm' | 'per-client'))?
				       ('max-connections'
       NONNEGATIVE_INTEGER)?
				   )?
				   ('virtual' VIRTUAL_SERVER_OBJ
				       ('connection-mode' ('per-peer' |
       'per-blade' | 'per-tmm' | 'per-client'))?
				       ('max-connections'
       NONNEGATIVE_INTEGER)?
				   )?
				   (('pool' POOL_OBJ) | ('host' HOST))
				  ))+

   DESCRIPTION
       Instructs the route table to route the message to the provided host or
       pool using the specified virtual server or transport config for
       creating the outgoing connection. If both a transport config and
       virtual server are listed, the transport-config will be used for
       creating a new outgoing connection, but a connection created with
       either transport will be usable for connection reuse.

       MR::message attempted

   DESCRIPTION
       Gets the hosts that this message has been routed towards.

       MR::message attempted none

   DESCRIPTION
       Clear any attempted hosts already set in the message.

       MR::message attempted ((('virtual' VIRTUAL_SERVER_OBJ)
				    |
				    ('config' TRANSPORT_CONFIG))     ('host'
       HOST)
				  )+

   DESCRIPTION
       Sets the attempted hosts list. If set before routing the message
       (during MR_INGRESS or MR_EGRESS) a host will be selected from the pool
       that has not already been attempted.

       MR::message drop (REASON)?

   DESCRIPTION
       Drops the current message

       MR::message retry_count

   DESCRIPTION
       Returns the number of attempts to route this message that have
       occurred.

       MR::message status

   DESCRIPTION
       Returns the status of the routing operation (valid only at MR_EGRESS or
       MR_FAILED). Possible values are:
	   "unprocessed"
	   "route found"
	   "no route found"
	   "dropped"
	   "queue_full"
	   "no connection"
	   "connection closing"
	   "internal error"
	   "persist key in use"
	   "standby dropped"

       MR::message originator

   DESCRIPTION
       Returns the transport type, transport name and IP and port of the
       originator of the message.

       MR::message lasthop

   DESCRIPTION
       Returns the message's lasthop (details of the connection that
       originated the message).

       MR::message nexthop none

   DESCRIPTION
       Clears the nexthop already set in the message.

       MR::message nexthop (HOP)?

   DESCRIPTION
       Returns the nextop nexthop (details of the connection the message is to
       be forwarded to). If the new_nexthop parameter is present, a nexthop
       may be set for the message.

       MR::message pick_host (('peer' PEER) | (('pool' POOL_OBJ) ('config'
       TRANSPORT_CONFIG)?)) ('carp' CARPKEY)?

   DESCRIPTION
       MR::message pick_host peer  [carp ]
       MR::message pick_host pool  [config ]
       [carp ] Returns a host picked from pool specified in the
       peer. If carp key is specified, it uses CARP algorithm to compute the
       host. If no carp key is specified, it uses LB algorithm of the pool
       object specified on peer object to return the host. The returned value
       can be used to set the host of MR::message route command.

DESCRIPTION
RETURN VALUE
VALID DURING
       MR_INGRESS MR_EGRESS MR_FAILED

EXAMPLES
	# Example 1
	when MR_INGRESS {
	    if {[GENERICMESSAGE::message is_request] != 0} {
		set host [MR::message pick_host peer /Common/mypeer]
		MR::message route config tcp_tc host $host
	    }
	}

	# Example 2
	when MR_INGRESS {
	    if {[GENERICMESSAGE::message is_request] != 0} {
		set host [MR::message pick_host peer /Common/mypeer carp [IP::client_addr]]
		MR::message route config tcp_tc host $host
	    }
	}

HINTS
SEE ALSO
CHANGE LOG
       @BIGIP-11.5.0 --First introduced the command.  @BIGIP-11.6.0 --Add
       MR::message retry_count --Add MR::message nexthop --Add MR::message
       lasthop @BIGIP-13.0.0 --Add peer-selection-mode keyword to MR::message
       route command.  --Add MR::message attempted @BIGIP-13.1.0 --Add
       connection-mode keyword to MR::message route command.  --Add max-
       connections keyword to MR::message route command.  @BIGIP-14.0.0 --Add
       MR::message clone --Add MR::message clone_count --Add MR::message
       clone_id --Add MR::message clone_id_request --Add MR::message
       existing_connections_only --Add MR::message
       outgoing_connection_instance_seed --Add MR::message pick_host



BIG-IP				  2018-07-19			      iRule(1)