ADTRAN Express 5210, Руководство пользователя

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Chapter 7. DTE Port Configuration
61200208L1-1 Express 5210 User Manual 7-7
Address Table (ADDR TABLE)
DTE Port DLCI (DTE DLCI)
Enter the
DTE P
ORT
DLCI
into the protocol
A
DDRESS
T
ABLE
,
mapping it to the corresponding
N
ETWORK
DLCI
. If address
translation is not required, set to the value of the corresponding
N
ETWORK
DLCI
.
Network DLCI (NET DLCI)
Enter the N
ETWORK
DLCI into the protocol A
DDRESS
T
ABLE
,
mapping it to the corresponding DTE DLCI . Obtain DLCI
addresses from the service provider.
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 7-5.
The PU (physical unit) A
DDRESS
, LLC2 SSAP , LLC2 DSAP , and
O
UTGOING
DLCI are used to set up an end-to-end SDLC session for
each PU in the network. The PU A
DDRESS
should match the
address of each controller address attached to the port. The
O
UTGOING
DLCI determines the path across the frame relay
network and is given by the service provider. The SSAP/DSAP
pairs are user-defined but should match between two
Express 5210s for each SDLC session.
There should be one entry for every virtual circuit on the frame relay
DTE
port.
When building or editing an A
DDRESS
T
ABLE
, use the
Next
,
Prev
,
Add
,
and
Delete
keys on the front panel (described in the chart on page 3-9), or
the
Insert
and
Delete
functions of the terminal interface (described in the
chart on page 3-7).