3Com TokenLink 3C339, Руководство пользователя

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A-2 A
PPENDIX
A: C
ONFIGURATION
SBCLK RATIO Determines the speed
at which the NIC
operates as a ratio of
PCI bus speed. If the
NIC fails to initialize
or performs erratically,
set at 1. If necessary
try settings 2, 3, and
4 in order. 1 1, 2, 3, 4
LOCAL BUS
SPEED Sets the speed of the
NIC’s on-board
communications
processor. 6 MHz 4, 6 MHz
Table A-1 3C339 NIC Configuration Parameters (Modifiable with
3TLVDIAG) (continued)
Parameter Description Default Value Supported Values
Table A-2 3C339 NIC Configuration Parameters (Not Modifiable with 3TLVDIAG)
Parameter Description Default Value Supported Values
FRAME Specifies the frame
type. TOKEN-RING TOKEN-RING
TOKEN-RING_SNAP
NODE ADDRESS Sets the optional
locally administered
node address. IEEE globally
administered
node ID 400000000000 to
400023456789
DETR Disables early token
release. Early token
release enabled Not applicable
MAX FRAME SIZE Sets the maximum
frame size
transmitted and
received by the NIC.
4216 bytes 618 to 17960 bytes
NON-VDS Used when the
memory manager
does not conform to
virtual DMA services. Memory
manager
assumed to
conform to
virtual DMA
services Not applicable
REINSERT Makes the NIC driver
automatically reinsert
into the network
after a remove frame
is received. Driver does not
reinsert after a
remove frame
is received Not applicable
LATENCY TIMER Sets the maximum
length of time during
which the NIC can
transfer data to the
PCI bus. Set by PCI
system 0–248 (units of 8)
Book Page 2 Thursday, June 5, 1997 9:07 AM