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Configuring DLSw Services
3-18 114063 Rev. A
For each local device that you add, Site Manager creates a corresponding SDLC
link station, which is how SDLC sees the local device. Site Manager assigns
several default parameter values to the link station. For information on how to
access and change the link station parameters, see Configuring SDLC Services.
Once you add local devices, you can access and change the local device
parameters, as described in Chapter 5.
Configuring DLSw over Frame Relay
When configuring DLSw over Frame Relay, IBM provides two types of Frame
Relay support:
Boundary Network Node (BNN) -- RFC 1490 or Routed SNA)
Boundary Access Node (Bridged SNA)
Bay Networks routers select BNN or BAN when you configure the DLSw/Frame
Relay network. When configuring a Frame Relay interface for DLSw, a pop up
screen appears with the request, “Use Source Route Encapsulation?” You can
select
OK. This selects BNN frame format.
CANCEL. This option provides BAN support.
Boundary Network Node (RFC 1490)
Because the Boundary Network Node (BNN) format does not carry the
destination MAC address, incoming LAN frames must be forwarded to a specific
PVC for delivery to the host. This is done with the Frame Relay Mapping Table.
This table has three fields:
DLCI, which represents a Frame Relay PVC
Remote MAC, which is the Destination MAC address
Local MAC, which is a Source MAC address
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