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Add (ADD key on front panel)
Add a new entry to the address table.
Delete (DELETE key on front panel)
Delete the current entry in the address table.
There should be one entry for every virtual circuit on the frame relay
port.
SDLC Protocol
SDLC is a synchronous, bit-oriented, full-duplex, Layer 2 protocol
used to connect SDLC devices to a frame relay network. At Layer
2, SNA networks use SDLC between FEPs (front-end processors)
and cluster controllers. This protocol selection provides Logical
Link Control Type 2 (LLC2). LLC2 defines the data link frame
header and supports the multiplexing of one or more data links to/
from separate service access points (SAPs). Type 2 provides
acknowledged, connection-oriented service. See Figure 6-5.
The PU (physical unit) A
O
UTGOING
each PU in the network. The PU A
the address of each controller address attached to the port. The
O
UTGOING
network and is given by the service provider. The SSAP/DSAP
pairs are user-defined but should match between two
Express 5200s for each SDLC session.
All PU A
that they match the PU A
DSAP/DLCI is used to make the connection across the frame relay
network.
Physical Layer Options (PHYS LYR OPTS)
Interface Type (INTERFACE)
Select the connector type for the
EIA-232 and V.35 .
61202175L1-1
DDRESS
DLCI are used to set up an end-to-end SDLC session for
DLCI determines the path across the frame relay
for a port must be unique, but it is not necessary
DDRESSES
DDRESS
Express 5200 User Manual
Chapter 6. DTE Port Configuration
, LLC2 SSAP , LLC2 DSAP , and
elements should match
DDRESS
at the remote end. The SSAP/
interface. The choices are
DTE
DTE
6-7
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