Compaq AA-Q88CE-TE - Manual (Page 169)

EXTEND FACILITY
Backend-list is a list of backend-nodes separated by commas. If there is more
than one backend-node , then backend-list must be enclosed in parentheses.
Backend-node is either the name of a node or @file-spec , where file-spec
specifies a file containing a backend-list on each line.
/BALANCE
/NOBALANCE (D)
Specifies that load balancing is enabled for frontend/router connections across the
facility.
In order for load balancing to function correctly, /BALANCE must be defined on
all routers, as well as on those frontends requiring load balancing.
It has no significance on a backend node, and will be ignored if specified.
The default behavior (/NOBALANCE) is for a frontend to connect to the
preferred Router . Preferred routers are defined by the order specified in
the /ROUTER qualifier of the EXTEND FACILITY command. Note that this
preference is subject to the router being available and quorate.
For more details on frontend load balancing, see Section 2.6, Router Load
Balancing.
/CALL_OUT[=role-list]
/NOCALL_OUT (D)
Specifies which node types are to have call-out servers running on them.
Role-list is a comma separated list of roles . If role-list contains more than
one role then it must be enclosed in parentheses.
Role is one of the keywords ROUTER or BACKEND .
The default for role-list is (ROUTER,BACKEND) .
/CLUSTER
/NOCLUSTER (D)
Specifies that the command is executed on all the nodes in the cluster.
If neither /NODE nor /CLUSTER is specified then the command is executed on the
nodes specified by the latest SET ENVIRONMENT command. If no SET ENVIRONMENT
command has been entered then the command is executed only on the node where
the command was issued.
Note: In environments that do not support clustering, use of the /CLUSTER
qualifier will cause the relevant command to be executed on the local node only.
/FRONTEND=frontend-list
/NOFRONTEND (D)
Specifies the names of the added nodes that act as frontends in this facility.
Frontend-list is a list of frontend-nodes separated by commas. If there is more
than one frontend-node , then frontend-list must be enclosed in parentheses.
Frontend-node is either the name of a node or @file-spec , where file-spec
specifies a text file containing a frontend-list on each line.
/NODE[=node-list]
/NODE=default-node-list (D)
Specifies that the command is executed on all nodes specified in node-list . If
node-list is omitted then the command is executed only on the node where the
command was issued.
RTR Command Line Interface 6–93