4-20 SmartSwitch 9A100 User Guide
Traffic Management
Switch Administration
Use the command
show CACEqBwAllocScheme
to view the current CAC policies used by each port for each QoS and
referenced by
VPI
.
SmartSwitch # show caceqbwallocscheme
PortID(ALL) :
Vpi(0) :
===========================================================
Port# VPI Alloc Scheme
for
CBR RT-VBR NRT-VBR UBR ABR
===========================================================
A1 0 CON CON CON LIB CON
A2 0 CON CON CON LIB CON
A3 0 CON CON CON LIB CON
A4 0 CON CON CON LIB CON
B1 0 CON CON CON LIB CON
B2 0 CON CON CON LIB CON
B3 0 CON CON CON LIB CON
B4(CPU) 0 CON CON CON LIB CON
C1 0 CON CON CON LIB CON
C2 0 CON CON CON LIB CON
C3 0 CON CON CON LIB CON
C4 0 CON CON CON LIB CON
D1 0 CON CON CON LIB CON
D2 0 CON CON CON LIB CON
D3 0 CON CON CON LIB CON
D4 0 CON CON CON LIB CON
SmartSwitch #
If there are a large number of connections of a particular QoS on a particular port, and these connections begin to slow
down and show signs of congestion, use the
set CACEqBwAllocScheme
command to change the CAC policy to
moderate or conservative.
SmartSwitch # set caceqbwallocscheme
PortID(A1) : b2
Vpi(0) :
SeriveCategory(CBR) : ubr
AllocScheme(LIBERAL) :conservative
SmartSwitch #
The SmartSwitch 9A100 performs buffering using a shared-memory architecture. Buffer space is divided into queues
for each QoS. In turn, ports are allocated some portion of each of the QoS queues. This allocation is controlled on a
per-port basis by the
porttrafficcongestion
commands.
Qos is defined on an end-to-end basis in terms of cell loss ratio, cell transfer delay, and cell delay variation.
Summary of Contents for SmartSwitch 9A100
Page 12: ...xii SmartSwitch 9A100 User Guide TABLE OF CONTENTS...
Page 14: ...xiv SmartSwitch 9A100 User Guide List of Figures...
Page 16: ...xvi SmartSwitch 9A100 User Guide List of Tables...
Page 18: ...1 2 SmartSwitch 9A100 User Guide Introduction...
Page 34: ...2 16 SmartSwitch 9A100 User Guide SmartSwitch ATM Administrator Switch Installation and Setup...
Page 42: ...3 8 SmartSwitch 9A100 User Guide F amV m h d F 2 6 3 F 1 m 2...
Page 80: ...5 6 SmartSwitch 9A100 User Guide Troubleshooting Congestion Troubleshooting...
Page 86: ...A 6 SmartSwitch 9A100 User Guide Technical Specifications Specifications...