
3-1
Chapter 3
DLSw Configuration Overview
This chapter provides general information about configuring DLSw on Bay
Networks routers, including
• DLSw session setup overview
• Site Manager roadmaps to configuring DLSw
• Configuration objects for single switch DLSw
• Configuration objects for dual switch DLSw
• Configuration objects for SDLC
• Optional configuration objects
DLSw Session Setup Overview
Before configuring DLSw, you should be familiar with how DLSw establishes
sessions between network endpoints. To establish SNA or NetBIOS sessions
between endpoints (devices), Bay Networks routers with DLSw enabled execute
the following sequence of events:
• Upon receiving a TEST (POLL) or similar frame from an attached endstation,
the receiving slot performs the following:
— Forwards the packet to all other slots defined in the DLSw Slot Table.
— Converts the TEST (POLL) frame into an SSP CANUREACH command.
— Searches the appropriate cache to determine if the remote location is
known. If the remote location is already in the cache, the CANUREACH
is forwarded only to this remote location. If the remote loccation is not in
the cache, DLSw forwards the CANUREACH to all remote routers
specified in the DLSw Peer IP Table, if this table exists.
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