NAME
add mapping - Adds or replaces server address information in the
local endpoint map
SYNOPSIS
rpccp add mapping -b string-binding -i interface-identifier
[-a annotation-string] [-o object-uuid] [-N]
OPTIONS
-b Specifies a string representation of a binding over which
the server can receive remote procedure calls. At least
one binding is required.
The value has the form of an RPC string binding, without
an object UUID, for example:
-b ncadg_ip_udp:63.0.2.17[5347]
Note that depending on your system, string binding
delimiters such as brackets ([ ]) may need to be preceded
by an escape symbol (\) or placed within quotation marks
(' ' or " "). Requirements vary from system to system,
and you must conform to the usage rules of a system.
-i Specifies an interface identifier to register with the
local endpoint map. An interface identifier is required.
Only one interface can be added (i.e., registered) in a
single operation. The interface identifier has the
following form:
interface-uuid,major-version.minor-version
The UUID is a hexadecimal string and the version numbers
are decimal strings, for example:
-i ec1eeb60-5943-11c9-a309-08002b102989,1.1
Leading zeros in version numbers are ignored.
-a Specifies a character string comment to be applied to each
cross product element that is added to the local endpoint
map. The string can be up to 64 characters long, including
the NULL terminating character.
The string is used by applications for informational
purposes only. The RPC runtime does not use this string
to determine which server instance a client communicates
with, or for enumerating endpoint map elements.
-o Defines an object UUID that further determines the
endpoint map elements that are removed (optional).
Each add mapping command accepts up to 32 -o options.
The UUID is a hexadecimal string, for example:
-o 3c6b8f60-5945-11c9-a236-08002b102989
-N Specifies that existing elements in the local host's
endpoint map should not be replaced when the new
information is added.
DESCRIPTION
The add mapping command adds to, replaces, or adds server address
information to the local endpoint map.
Each element in the local endpoint map logically contains the
following:
+ Interface ID, consisting of an interface UUID and versions
(major and minor)
+ Binding information
+ Object UUID (optional)
+ Annotation (optional)
This command should be used without the -N option when only a single
instance of the server in question runs on the server's host. Do not
use the -N option if no more than one server instance on the host
ever offers the same interface UUID, object UUID, and protocol
sequence.
When local endpoint map elements are not replaced, obsolete elements
accumulate each time a server instance stops running without
explicitly unregistering its endpoint map information. Periodically,
the RPC Daemon (DCED) will identify these obsolete elements and
remove them. However, during the interval between these removals,
the presence of the obsolete elements increases the chance that
clients will receive endpoints to nonexistent servers. The clients
will then waste time trying to communicate with these servers before
giving up and obtaining another endpoint.
Allowing DCED to replace any existing local endpoint map elements
(by not specifying -N) reduces the chance of this happening.
For example, suppose an existing element in the local endpoint map
matches the interface UUID, binding information exclusive of the
endpoint, and object UUID of an element this routine provides. The
routine changes the endpoint map according to the elements'
interface major and minor version numbers.
NOTE
This command is replaced at Revision 1.1 by the dcecp command and
may not be provided in future releases of DCE.
EXAMPLES
The following command operates from the system prompt to add a map
element to the local endpoint map. The command adds the map element
that contains the specified interface identifier, server address
(specified as a string binding), and object UUIDs.
$ rpccp add mapping -i ec1eeb60-5943-11c9-a309-08002b102989,1.1 \
-b ncadg_ip_udp:63.0.2.17[5347] \
-o 005077d8-8022-1acb-9375-10005a4f533a \
-o 001bc29a-8041-1acb-b377-10005a4f533a \
-a 'Calendar version 1.1'
$
The previous command adds the following elements:
interface ID
ec1eeb60-5943-1169-a309-08002b102989,1.1
string binding
ncadg_ip_udp:63.0.2.17[5347]
objects 005077d8-8022-1acb-9375-10005a4f533a
001bc29a-8041-1acb-b377-10005a4f533a
annotation
Calendar version 1.1
RELATED INFORMATION
Commands: export
remove mapping
show mapping
show server
Subroutines: rpc_ep_register
rpc_ep_register_no_replace