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Users Manual of XGS-6350-24X4C
The communication efficiency between master station and single slave station can be improved by increasing
the limit value of polling, but it may delay the polling to other slave stations.
One or more commands below can be used under interface configuration mode for controlling the polling of
slave station:
Command Purpose
sdlc poll-pause-timer milliseconds
Configuring the waiting time interval of router’s
polling to two slave stations on some single
serial port.
sdlc poll-limit-value count
Configuring the times of a master station’s
polling to slave station.
The “def” format of these commands can be used for restoring to the default polling value.
5.2.19 Configuring SDLC Interface as Half-Duplex Mode
Under default state, SDLC interface runs under full duplex mode. The command below can be used under
interface configuration mode for configuring SDLC interface as half-duplex mode.
Command Purpose
half-duplex
Configuring SDLC interface as half-duplex
mode.
5.2.20 Configuring XID Value
XID value set in the router shall be consistent with the corresponding parameter set on token-ring host with
which SDLC equipment will communicate and shall match with the corresponding system parameter in IDBLK
and IDNUM defined in VTAM of token ring host.
Configuring XID value will affect the attribute of the interface. If XID value is
configured, it means that the equipment connected with the interface is Pu2.0. XID
value can be configured after the port is shut down.
The command below can be used under interface configuration mode for configuring XID value.
Command Purpose
sdlc xid address xid
Designating XID value related to SDLC station.
5.2.21 Configuring the Maximum Value of SDLC Information Frame
Normally, the router and SDLC equipment that interacts with router protocol shall support the same and
maximum length of SDLC information frame. The bigger the value is, the more efficient the link is used and
the performance will be better.
After SDLC equipment is configured with the maximum possible information frame to be sent, the router shall
be configured for supporting the same maximum length of information frame. The default value is 265 bytes.
The maximum value supported by the software must be smaller than the maximum frame value of LLC2