Sun Microsystems manual 1000BASE-SX Link Characteristics Ieee P802.3z draft

1000BASE-SX Link Characteristics (IEEE P802.3z draft)

TABLE 2 has been updated to reflect changes in the latest draft from IEEE. TABLE 2 replaces Table B-1 in the Sun GigabitEthernet PCI Adapter User’s Guide

TABLE 2 1000BASE-SX Link Characteristics (IEEE P802.3z draft)

Description	62.5 Micron MMF	50 Micron MMF	Unit
Operating Range	2 to 160 meters	2 to 550 meters	m

Configuring Driver Parameters

Two new capabilities have been added to the parameters you can change using the ndd utility: nic_tracing and link_negotiation. The following procedure reflects these changes and replaces the section by the same name in the Sun GigabitEthernet PCI Adaper 1.0 User’s Guide.

▼To Temporarily Change a Parameter

Use the ndd(1M) utility to temporarily change a parameter. This change is lost when you reboot the system.

●To access the parameters you can change using ndd type the following command:

#ndd /dev/vge '?'

The system returns the following:

?
stat_ticks	(read and write)
send_max_coalesced_bds	(read and write)
recv_max_coalesced_bds	(read and write)
nic_tracing	(read and write)
link_negotiation	(read and write)
instance	(read and write)

6 Sun GigabitEthernet PCI Adapter 1.0 Product Notes • August 1997