Cabletron Systems 7C04-R, 7C03 manual TReq Requested Target Token Rotation Time, TNeg, Current Path

FDDI Management

TReq (Requested Target Token Rotation Time)

Displays the token rotation time bid made by the noted MAC during ring initialization, in milliseconds. T-Req is stored within the MIB in nanoseconds rather than milliseconds; SPMA converts nanoseconds to milliseconds according to the following formula:

(snmpFddiMACTReq) divided by 106 = T-Req msec

You can use any SNMP Set Request tool to edit the T-Req value; just remember that you must enter your value in nanoseconds, not milliseconds.

TNeg

Displays the winning token rotation time submitted by an FDDI ring station during the ring initialization, in milliseconds. The station with the lowest token rotation time bid wins the right to initialize the ring.

Current Path

Indicates which FDDI ring the noted MAC is attached to:

•Primary ––the MAC is physically on the primary path.

•Secondary ––the MAC is physically on the secondary path.

•Local ––the MAC is physically on an internal local path and is not associated with the dual ring.

•Isolated ––the MAC is not associated with any physical path.

•? ––SPMA cannot determine the current MAC path.

Charts, Graphs, and Meters

You can view both an FDDI MAC Chart and FDDI MAC Meters (and, if you are running SPMA in conjunction with HP Network Node Manager or IBM NetView, an FDDI MAC Graph) for each available MAC entity by clicking on the appropriate buttons at the bottom of the SMT/MAC Configuration window.

NOTES

Graphing capabilities are provided by an application that is included in HP Network Node Manager and IBM NetView; therefore, graphs are only available when SPMA is run in conjunction with one of these network management platforms. If you are running SPMA in a stand-alone mode or in conjunction with SunNet Manager, no graphing capabilities are available and no graph-related options will be displayed on buttons or menus. Note that the screens displayed in this guide will include the graph-related options where they are available; please disregard these references if they do not apply.

Only general information about charts, graphs, and meters is provided in the following sections; for more detailed information, see the SPMA Tools Guide.

SMT/MAC Configuration 4-17