NAME
fddinet — display logical FDDI ring map information
SYNOPSIS
/usr/bin/fddinet
[-n]
[-d
station_address]
device_file
DESCRIPTION
fddinet
displays logical connection information
for the reachable nodes connected to the same
FDDI
ring.
Options and Command-Line Arguments
fddinet
recognizes the following options and command-line arguments:
- -n
Use
FDDI
native form when displaying address information.
The default is the canonical form.
- -d station_address
Specifies the
MAC
Address of the node that is to be first
in the display of the logical ring map.
If the
-n
option is used in the command line, the
MAC
Address is a 12-character, hexadecimal-digit string in
FDDI
native form; otherwise, the default canonical form is used.
It can start with or without the usual
0x
prefix.
For example, both
0x080009091219
and
080009091219
are valid
MAC
Addresses.
- device_file
Device special file associated with the
FDDI
interface.
By convention, device files are kept in the
/dev
directory.
Each device file has a name and a device number
to uniquely identify the interface.
See the
DEPENDENCIES
section of
fddiinit(1M)
for a description of how to create device files.
RETURN VALUE
Upon successful completion,
fddinet
returns 0; otherwise it returns 1.
ERRORS
fddinet
fails if any of the following conditions is encountered:
Command used incorrectly - Usage message is returned.
Invalid device file - returns
Can't open device file.
Check the device file.
See
DEPENDENCIES
section of
fddiinit(1M)
for a description of how to create device files.
Hardware or driver error - hardware failed to respond to the request.
Ensure that the hardware is correctly connected, then use
fddiinit
to reinitialize the interface if necessary (see
fddiinit(1M)).
If the same failure happens after interface reinitialization,
replace the interface with a known-good unit,
if one is available, and retry the command.
Otherwise, contact your HP Customer Support representative.
EXAMPLES
Fields are defined as follows:
- MAC_Address
Specifies the 48-bit
MAC
Address of the node in hexadecimal format.
The default is canonical form.
FDDI
native form is used if the
-n
option appears in the command line.
- Node_Type
Specifies whether the node is a Single Attachment Station
(SAS),
Dual Attachment Station
(DAS),
or Concentrator.
SAS
and
DAS
station types include the
MAC
count displayed inside parentheses after the node type;
concentrator station types
include the number of master ports inside parentheses
after the node type.
- UNA
Specifies the
MAC
Address of the upstream neighbor in hexadecimal format.
The default is canonical form.
FDDI
native form is used if the
-n
option appears in the command line.
- Topology
Displays the topology of the station.
Possible values are:
- Wrapped
Set when the station's attachment state is
Wrap_A,
Wrap_B,
Wrap_S,
or
Wrap_AB.
- Unrooted
Set when a concentrator has no active A, B or S Port.
- Twisted A-A
Set when an A-A connection is detected in the station.
- Twisted B-B
Set when a B-B connection is detected in the station.
- Rooted
Set when the station does not have an A or B or S Port active in tree mode.
- SRF
Set if the station supports the Status Report
(SRF)
protocol.
AUTHOR
fddinet
was developed by HP.
