Zhone 2000 ユーザーガイド

This report displays POTS statistics.

To clear network statistics, type “Z” on the Network Statistics menu. The 

IAD displays the Clear Network Statistics menu, giving you the option of 
clearing the statistics related to the IAD’s specific datalink protocol and WAN 
configuration (i.e., ATM Statistics, Frame Relay DLCI Statistics, etc.).
To permanently reset statistics for a specific protocol, type the option. The 
IAD immediately resets all statistics for the specified protocol.
Continue resetting network statistics, or press Escape to return to the Network 
Statistics menu.

late collision

Discarded transmitted frames because a collision 
occurred. No. of times that a collision is detected on a 
particular interface later than 512 bit-times into the 
transmission of a packet.

excessive collision

A count of frames for which transmission on a 
particular interface fails due to excessive collision

carrier sense lost

No. of times that the carrier sense condition was lost 
or never asserted when attempting to transmit a frame 
on a particular interface. The count represented by an 
instance of this object is incremented at most once per 
transmission attempt, even if the carrier sense 
condition fluctuates during a transmission attempt.

underrun

DMA underrun. Discarded outgoing packets because 
there are no packets waiting in the buffer.

transmitter resets

No. of transmitted packets after an error occurred

Line X Active/Inactive

Current status of line X.
Active: Phone line connection is up.
Inactive: Phone line connection is down.

Buffers Rcvd

No. of packets received from this POTS line.

Buffers Sent

No. of packets sent to this POTS line.

Discarded

Discarded packets due to Jitter Buffer Overrun. The 
internal Jitter Buffer is full and could not allocate a 
new free packet buffer.

Underrun

Discarded packets due to there are no packets waiting 
in the Jitter buffer.