
Configuring Bridging Services
3-2 114060 Rev. A
You can configure the Bay Networks source routing bridge so that it treats
NetBIOS names as though they have 15 characters. This feature is useful
particularly in application environments that use the first 15 characters of the
NetBIOS name to identify the station, and the last character to identify the
application running on the station.
If the application uses source routing bridge name caching, it is more efficient to
use only the first 15 characters. The resulting cache is smaller and the cache hits
more common. If you do not know whether the applications use 15- or
16-character names, select 16-character names. Refer to “
NetBIOS Global
Parameter Descriptions” later in this chapter for a description of the 15-Character
NetBIOS Name Caching parameter.
Registering Station Names
All NetBIOS stations advertise their names when they become active. A station is
considered to be registered when it can successfully advertise its own name
without any other station claiming it has the same name. The following steps
describe how an application registers a station name.
1. To register itself on the network, a NetBIOS station sends add name query or
add group name query frames for each name it wants to use. These frames
contain each station’s assigned name. The NetBIOS station repeats these
commands typically six to ten times to increase the chance that all other
stations hear them.
2. If another station already has the same name, that NetBIOS station issues an
add name response command to indicate that the name is already in use. The
station issuing the query must stop trying to use that name.
3. When a partitioned source route bridge network reconnects, two stations may
have the same name. When a NetBIOS station detects this (for example, if it
receives two or more name recognized responses to a name query request), it
issues a name in conflict broadcast frame.
4. Upon receiving a name in conflict frame, the NetBIOS application using that
name must stop trying to use that name. The application shuts down to
eliminate the conflict.
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