PCI FDDI Administrator's Guide

Troubleshooting PCI FDDI
Diagnostics
Chapter 3 79
— Requested TTRT: Specifies the requested Target Token
Rotation Time (TTRT) by the local station in the claim token
process in milliseconds. Refer to the T_Req value description in
the ANSI FDDI/SMT specifications for more details.
— T_Neg: Negotiated Target Token Rotation Time (TTRT).
Specifies the target rotation time being used by all the stations
on the ring. This value is negotiated during the claim token
process. The value of “T_Neg” is in milliseconds. Refer to the
“T_Neg” value description in the ANSI FDDI/SMT specifications
for more details.
— Number of multicast addresses configured: Specifies the
number of link-level multicast addresses configured for this
interface.
fddipciadmin: Menu Options
The Interface Status Summary contains the most commonly used
information. Menu Option 1 causes fddipciadmin to re-read statistic
from the card/driver. The other menu selections display more
information about the interface and driver.
• Display SMT Attributes: Station Management attributes.
• Display MAC Attributes: MAC attributes, including:
— Config (upstream and downstream neighbors, previous
neighbors).
— Operation (includes timers related to the Token Rotation Timer).
• Counters (includes token count, transmit/receive counts, Ring_Op
count).
• Display Port A Attributes/Display Port B Attributes:
Information related to the individual ports, including error counts.
• Display Path Attributes: Attributes of the logical segment of the
FDDI ring that passes through the station.
• Display Multicast Addresses: The multicast MAC addresses
registered with the interface (the multicast addresses recognized by
the interface).
• Display Driver Status: Transmit/receive statistics for the driver.