Chapter 6 - Basic Configuration Guide 27
Suggested for DECnet
Setting the parameters above should be adequate for most installations.
Frame Relay Configuration
This section covers the settings required for Frame Relay operation of
the RISC Router 3500R WAN interfaces. In general, the parameters
listed here should be set for each WAN interface on which you plan to
use Frame Relay. Note that some WAN interfaces can be running
Frame Relay while others are running PPP or SMDS.
The V.35 interfaces can only be run synchronously, at rates up to 2
Mbps per second.
Link Configuration
Frame Relay is presently supported in the RISC Router 3500R only via
synchronous dedicated line operation.
•Set Dedicated connection
•Set Frame Relay connection
CV: Use the Link Configuration: WAN 0 Dialog Box.
TB: Use configure to set the Mode and ConnectMode keywords in
the Link Config WAN 0 (and/or other port numbers you wish to
configure) section.
Suggested for Dedicated/Leased Line Operation
Dedicated line operation generally does not require additional parame-
ters for operation.

Frame Relay DLCI Mappings

If you are connecting to another Compatible Systems router, this infor-
mation is not required for Frame Relay operation. Compatible Systems
uses IARP (Inverse Address Resolution Protocol) to dynamically
generate this information. To connect to other vendors’ routers which
do not support IARP, you must provide DLCI-to-protocol mapping
information.
v Note: Many Internet Service Providers (ISP’s) do not support IARP
as a default. If one of your RISC Router 3500R interfaces will be
connected to an ISP via Frame Relay, check with your ISP technical
staff on whether you must manually enter DLCI information or not.