Database value will change. If Y, the System Memory value will change. Pressing [F7] after changing either set of values will propagate the change to the other set. (This must be done at each screen, and affects only those parameters on that screen.)

Connections Parameters

Sq

is simply a sequence number to allow selection of a line in the display.

HSAP

is the service access point (SAP) address used to connect to the host. This must match the SSAP (source SAP) in a frame received from the local LAN or the DSAP (desti- nation SAP) in a frame from the remote link station.

Local Subscriber ID

is the subscriber address assigned to the local end of the SNA connection. If config- uring an LLC2-to-SDLC link, this address must match the Remote Subscriber ID con- figured in the SNA port record for the SDLC device. If configuring an LLC2-to-LLC2 connection, this address must match the Remote Subscriber ID in the remote node's LLC2 Host record.

Remote Subscriber ID

is the subscriber address assigned to the remote end of the SNA connection. If config- uring an LLC2-to-SDLC link, this address must match the Local Subscriber ID con- figured in the SNA port record for the SDLC device. If configuring an LLC2-to-LLC2 connection, this address must match the Local Subscriber ID in the remote node's LLC2 Host record.

IDBLK

is used in conjunction with IDNUM in generating the Node field in an XID frame (format 0 or 3) to establish a link station connection to the host. A further explanation is provided under "IDNUM."

IDNUM

is used in conjuction with IDBLK in generating the Node field in an XID frame (format 0 or 3) to estblish a link station connection to the host. If both IDBLK and IDNUM are set to 0, the Node field of the XID will be provided by the attached SDLC device. (The node will send an XID command to the remote node to indicate that the SDLC device should be polled for an XID.)

Maxdata

must correspond to the PIU size configured on the host (parameter MAXDATA of macro PU in VTAM). For a link between a PU type 4 and a PU type 2, the frame size con- figured for the HPAD and TPAD SNA ports must be set at the value of MAXDATA in VTAM plus 6 bytes (corresponding to the length of the link header and the link trailer).

MaxIn

is the maximum number of sequentially numbered Information LPDUs that the link station can have outstanding.

Configuring SNA

9-25

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Cabletron Systems 1800 manual Connections Parameters

1800 specifications

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