
Configuring Bridging Services
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6. Based on the information gained from the name-recognized frame accepted
by the originating application, the NetBIOS interface establishes a session
directly between the originating and destination application. Once the session
between applications is open, NetBIOS names are no longer necessary for the
duration of that session.
7. When no further session transactions remain, the NetBIOS interface that
serves the calling application closes the session.
Sessionless Communication
When a NetBIOS station wants to send information that does not require a
response from the destination application, the local station transmits a NetBIOS
datagram frame. The datagram allows the NetBIOS station to communicate
without establishing a session. The source station or application can send a
datagram as a broadcast frame or an SRF.
Broadcast Reduction
To increase the bandwidth available on your source routing network, the Bay
Networks source routing bridge can convert broadcast frames (add name query,
add group name query, name-recognized query response, and certain datagram
frames) to specifically routed frames (SRFs). This process is called broadcast
reduction.
You can customize the broadcast reduction capabilities of the source routing
bridge, using these caching mechanisms:
• Name caching
-- Client name caching
-- Server name caching
-- Datagram RIF caching
• Query caching
• Cache lookup
• Cache aging
The following sections describe the functions of the caching mechanisms.
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