Sun Microsystems SunFDDI/P 1.0 User Manual page 66

5
Problem
The link status indicator (diagnostic LED) remains
red.
The link status indicator (diagnostic LED) remains
amber.
The link status indicator (diagnostic LED) remains
amber, even after the local station is connected to the
network and the driver is configured and loaded.
The SunFDDI/P interface (pf) is not displayed by
netstat.
The SunFDDI/P interface (pf) is not displayed by
ifconfig.
The local station can reach FDDI stations located on
the same subnetwork, but these stations cannot reach
the local station.
The local station cannot reach other FDDI stations
located on the same subnetwork.
Running pf_stat without the —m option (to display
information about the local station) shows the ring
alternating frequently between UP and DOWN.
40
Table 5-2 Problems Running SunFDDI/P
Action
Check that the SunFDDI/P software is installed correctly and
that the driver is loaded and configured.
Check that the SunFDDI/P PCI card is connected to the
network.
Check that the other end of the cable is connected and that the
neighboring station or concentrator is configured correctly.
Some concentrators have diagnostic LEDs that indicate if the
ring is operating correctly. Check that the ring is not crossed.
Check that the SunFDDI/P device driver is loaded, using
modinfo(1M) to display information about loaded kernel
modules. If the device driver is not loaded, see "Loading the
Device Driver Manually" on page 45 for detailed instructions.
Check that the SunFDDI/P device driver is loaded, using
modinfo(1M) to display information about loaded kernel
modules. If the device driver is not loaded, see "Loading the
Device Driver Manually" on page 45 for detailed instructions.
Check that the IP address and host name of the local station is
entered in the NIS map or NIS+ tables (or in /etc/hosts on
each remote station if you are not running NIS or NIS+).
Check that the link status indicator is green, indicating that the
SunFDDI/P interface is attached to an active network. Use
ifconfig(1M) to check that the SunFDDI/P interface (pf) is
up.
Check that the IP address and host name of the remote station
is entered in the NIS map or NIS+ tables (or in /etc/hosts
on the local station if you are not running NIS or NIS+).
Check that the link status indicator is green, indicating that the
SunFDDI/P interface is attached to an active network.
Check the connections to the concentrator. Some concentrators
have diagnostic LEDs that indicate if the ring is operating
correctly.
SunFDDI/P 1.0 Adapter User's Guide—May 1997