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14.3 SDLC Configuration
The SDLC tasks described in this section configure the router as an SDLC station. (This is in contrast to
a router configured for SDLC Transport, where the device is not an SDLC station, but passes SDLC
frames between two SDLC stations across a mixed-media, multiprotocol environment.) The first task is
required; you accomplish it with the appropriate set of commands for your network needs. The
remaining tasks are optional: you can perform them as necessary to enhance SDLC performance.
14.3.1 Configure the Router as SDLC Primary or Secondary Station
SDLC defines two types of network nodes: primary and secondary. Primary nodes poll secondary
nodes in a predetermined order. Secondaries then send if they have outgoing data. When configured
as primary and secondary nodes, our devices are established as SDLC stations.
14.3.2 Establishing an SDLC Station for DLSW+ Support
After the router being set as SDLC station, user can use the following commands in interface
configuration mode to set the DLSW+ feature:
encapsulation sdlc
sdlc role { primary | secondary }
sdlc vmac mac-address
sdlc partner mac-address sdlc-address
Step 1:
Enter the configuration ports, select 11 item, display:
(00)frame-relay Frame Relay Protocol
(01)hdlc
(02)ppp
(03)sdlc
(04)x25
Please Input the code of command to be excute(0-4): 3
Input 3，select sdlc item
Step2:
Select 28 item from listing , display:
00)K
......
(10)role
......
Please Input the code of command to be excute(0-16): 10
Input 10 item, display:
(00)primary
(01)secondary
Please Input the code of command to be excute(0-1):
Select interface configuration role
Step3:
Select 28 item from listing, display;
(00)K
......
(14)vmac
......
Please Input the code of command to be excute(0-16): 14
Input 14，select vmac item，display ：
Command
HDLC Protocol
PPP Protocol
SDLC Protocol
X.25 Protocol
The size of the sending window
SDLC station type
primary station
secondary station
The size of the sending window
Assign MAC address to interface
Model Name
Set the encapsulation of the serial interface as SDLC.
Set the interface role.
Set the MAC address of the serial interface
Specify
the
inter-connection between SDLC and LLC
- 497 -
Function
destination
address
to
set
up
a
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