236CHAPTER 8: FIBER DISTRIBUTED DATA INTERFACE (FDDI)

Field

Description

 

 

tReq

Target token rotation time that this MAC requested

tvxCapab

Maximum time value of the valid transmission timer that

 

this MAC can support

tvxExpiredCount

Number of times that this MAC’s valid transmission timer

 

has expired

tvxValue

Value of the valid transmission timer that this MAC uses

txByteRate

Average number of bytes that this MAC transmitted per

 

second during the most recent sampling period

txBytes

Number of bytes that this MAC transmitted

txDiscards

Number of frames discarded because LLC service was not

 

enabled or the FDDI ring was not operational

txFrameRate

Average number of frames that this MAC transmitted per

 

second during the most recent sampling period

txFrames

Number of frames that this MAC transmitted. This

 

number does not include MAC frames.

txInternalErrs

Number of frames discarded because of an internal

 

hardware error during transmission

txMulticasts

Number of multicast frames queued for transmission by a

 

higher-level protocol or application, including frames not

 

transmitted successfully

txPeakByteRate

Peak value of fddiMACByteTransmitRate for this MAC

 

since the station was last initialized

txPeakFrameRate

Peak value of fddiMACFrameTransmitRate for this MAC

 

since the station was last initialized

txQOverflows

Number of frames discarded because the transmit queue

 

was full

txUnicasts

Number of unicast frames queued for transmission by a

 

higher-level protocol or application, including frames not

 

transmitted successfully

upstream

MAC address of this MAC’s upstream neighbor

upstreamDupAddr

Whether the address upstream of this address is

 

duplicated on the ring

 

 

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3Com 3500 manual This MAC can support, Has expired, TvxValue, Enabled or the Fddi ring was not operational