3com S330 User Manual

You can view performance monitoring, virtual circuit, and port activity statistics for 
the Voice Compression module. To view VCM statistics, follow these steps:

1 From the Card Statistics menu, shown earlier in Figure 146, enter the number 

corresponding to the slot in which the VCM for which you want to view statistics 
is installed (7 or 8) to open the VCM Card Statistics menu, shown in Figure 148.

Figure 148   VCM Card Statistics Menu

2 Select the option corresponding to the type of statistics you want to view: 

[1] Performance Monitoring, [2] Virtual Circuit Statistics, or [3] Port Activity 
Statistics.

The VCM Performance Monitoring screens display the following statistics:

ES—The number of errored seconds (ESs) encountered by the VCM T1-DSX/E1 
interface.

SES—The number of severely-errored seconds (SESs) encountered by the VCM 
T1-DSX/E1 interface.

SEFS—The number of severely errored framing seconds (SEFSs) encountered by 
the VCM T1-DSX/E1 interface.

UAS—The number of unavailable seconds (UASs) encountered by the VCM 
T1-DSX/E1 interface.

CSS—The number of controlled slip seconds (CSSs) encountered by the VCM 
T1-DSX/E1 interface.

PCV—The number of path coding violations (PCVs) encountered by the VCM 
T1-DSX/E1 interface.

LES—The number of line errored seconds (LESs) encountered by the VCM 
T1-DSX/E1 interface.