7-2 SmartSwitch 6500 User Guide
Traffic Management Capabilities
Traffic Management
SmartSwitch 6500 user data cells are classified according to the state of a cell loss priority (CLP) bit in the header of
each cell. A CLP 1 cell has a lower priority than a CLP 0 cell and is discarded first. Source traffic descriptors can
specify CLP 0 cell traffic, CLP 1 cell traffic, or the aggregate CLP 0+1 traffic.
Use the
trafficdescriptor
commands to view, create, and delete traffic descriptors.
For example, enter the
show trafficdescriptor
command to view all currently defined traffic descriptors.
Smart6500 # show trafficdescriptor
========================================================================================
TD# Traff Desc QoS Peak Cell Rate Sust Cell Rate Max Burst Size Min Cell Aal Type
Type Type (Kb/s) (Kb/s) (Kb/s) Rate
CLP_0 CLP_0+1 CLP_0 CLP_0+1 CLP_0 CLP_0+1 (Kb/s)
=========================================================================================
1 NRTVBR 7 0 0 10872 5436 0 2052 0 0 5
2 CBR 2 1 0 100 0 0 0 0 0 5
176 NRTVBR 2 1 0 1585 0 0 0 0 0 5
Smart6500 #
Note
You cannot use the default traffic descriptors for user-defined PVCs. All traffic
descriptors used to define PVCs must be created by the user.
The Descriptor Type parameter in the example above corresponds to the traffic descriptor types defined in the
UNI3.0/UNI3.1 specification. Descriptor types are specified numerically and correspond to the descriptions in
Table 7-1.
Table 7-1
Traffic descriptor type number explanation
Type Valid
Service
Category
Descriptor Characteristics
1
No Traffic Descriptor
2
CBR
PeakCellRate CLP0+1
3
CBR
PeakCellRate CLP0+1, PeakCellRate CLP0
4
CBR
PeakCellRate CLP0+1, PeakCellRate CLP0, Tag CLP = 1
5
VBR
PeakCellRate CLP0+1, SustCellRate CLP0+1, MaxBurstSize CLP0+1
6
VBR
PeakCellRate CLP0+1, SustCellRate CLP0, MaxBurstSize CLP0
7
VBR
PeakCellRate CLP0+1, SustCellRate CLP0, MaxBurstSize CLP0, Tag CLP = 1
8
ABR
PeakCellRate CLP0+1, Minimum Cell Rate
11
UBR
BestEffort
Summary of Contents for SmartSwitch 6500
Page 12: ...xii SmartSwitch 6500 User Guide Table of Contents Index I 1...
Page 14: ...xiv SmartSwitch 6500 User Guide List of Figures...
Page 16: ...xvi SmartSwitch 6500 User Guide List of Tables...
Page 20: ...1 4 SmartSwitch 6500 User Guide SmartSwitch 6500 Modules Introducing the SmartSwitch 6500...
Page 90: ...6 12 SmartSwitch 6500 User Guide Virtual Ports Virtual Ports and Static Connections...
Page 98: ...7 8 SmartSwitch 6500 User Guide Traffic Management Capabilities Traffic Management...
Page 120: ...A 4 SmartSwitch 6500 User Guide Specifications...
