NS3000/iX NMMGR Screens Reference Manual - Edition 9 (36922-90040)

Chapter 3 49

Link Conﬁguration Screens

Link Conﬁguration: LAP-B Link Data

LAP-B parameter N2

(HP modiﬁable.) This ﬁeld speciﬁes the maximum

number of times to retransmit a frame if the T1 timer

expires. The recovery procedure mentioned in LAP-B

parameter T1 usually refers to the retransmission of

the oldest unacknowledged frame. The value of N2

speciﬁes the total number of times that the T1 timer

expires and a frame is retransmitted in determining

that the other side is not responding.

Default value: 20

Range: 1–255 retries

Buffer size

Layer 3 through 7 frame size. This is the amount of

data that a user of OSI Levels 3 through 7 can put in

that frame. It does not include Level 2 header or trailer

information. This parameter is used to conﬁgure

memory buffers.

Default value: 1024

Range: 32–1024 Bytes

Local mode

If the node you are conﬁguring is a Hewlett-Packard

computer operating across a point-to-point link, enter

11 (the default). HP computers at both ends of a

point-to-point link must both be conﬁgured as HP

point-to-point. If the remote node is a non-HP node and

the local station is acting as DTE, enter 5. If the remote

node is a non-HP node and the local station is acting as

DCE, enter 6. If the node you are conﬁguring is DCE,

then the node at the other side must be DTE. If the

node you are conﬁguring is DTE, then the node at the

other side must be DCE.

Default value: 11

Range: 5 = DTE, 6 = DCE, 11 = HP Point-to-Point

Transmission speed

This is the line-transmission speed in bits per second. It

may be overridden by whichever device is providing

clocking. The PSI simply transmits using the provided

clock source, whether it is the HP e3000’s CPU clock or

a modem.

Default value: 56000

Range: 1200, 2400, 4800, 9600, 19200, 38400, 56000, or