Menu Trees
61181041L3-5A
37
System Buffer, CAC, & Policing Options Menu
The System Buffer, CAC, & Policing Options menu (see
) used to display and
provision parameters that control AIS/RDI generation, cell policing, overbooking, sharing,
class scheduling, and traffic shaping. This menu also provides access to similar Loop, WAN,
and Port menus via the hot keys.
Figure 18. System Buffer, CAC, & Policing Options Menu
For Traffic Descriptor types that do not explicitly request the Cell Delay Variation Tolerance
(CDVT), an implied CDVT is provided. The implied CDVT that is used can be calculated based
upon the information in
.
The System Buffer, CAC, & Policing Options menu options are shown in
Table 12. Implied CDVT Calculation
Traffic Class
CDVT Formula
Constant Bit Rate (CBR)
50% of (1/PCR)
real time Variable Bit Rate (rtVBR)
60% of (1/PCR)
non-real time Variable Bit Rate (nrtVBR)
80% of (1/PCR)
Unspecified Bit Rate (UBR)
100% of (1/PCR)
Note: The value 1/PCR is the cell arrival time. All values for CDVT are entered in
100 nanosecond units (10ths of a microsecond).
Shelf: 1 Slot: B Total Access System MM/DD/YY HH:MM
ONLINE
System Buffer, CAC, & Policing Options
1. Policing : ENABLED 2. Default Input CDVT : 0
3. Cell Rate CAC : ENABLED 4. CBR Overbooking % : 100
5. Cell Buffer CAC : DISABLED 6. rtVBR Overbooking % : 100
7. AIS/RDI Generation : ENABLED 8. nrtVBR Overbooking % : 100
9. nrtVBR Sharing % : 0
10. UBR Sharing % : 95
11. CBR Class Scheduling : Modified Strict
12. rtVBR Class Scheduling : Modified Strict
13. nrtVBR Class Scheduling : Modified Strict
14. UBR Class Scheduling : Strict Priority
15. CBR Traffic Shaping : DISABLE
16. rtVBR Traffic Shaping : DISABLE
17. nrtVBR Traffic Shaping : DISABLE
18. UBR Traffic Shaping : DISABLE
S-System, W-WAN, L-Loop, P-Port, Selection:
'?' - System Help Screen
