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SmartCell 6A000 User Guide 4-21
Switch Administration Traffic Mana
g
ement
By default, all ports on the SmartCell 6A000 are set for liberal Call Admission Control. Use the show cacparams
command to view the current CAC policies used by each port.
SmartCell ZX# show cacparams
PortNumber(ALL) :
Port# Allocation Scheme
============================================================================
A1 LIBERAL
A2 LIBERAL
A3 LIBERAL
A4 LIBERAL
B1 LIBERAL
B2 LIBERAL
B3 LIBERAL
B4(CPU) LIBERAL
C1 LIBERAL
C2 LIBERAL
C3 LIBERAL
C4 LIBERAL
D1 LIBERAL
D2 LIBERAL
D3 LIBERAL
D4 LIBERAL
SmartCell ZX#
If there are a large number of connections on a particular port, and these connections begin to slow down and show
signs of congestion, use the
set cacparams command to change the CAC policy to moderate or conservative.
SmartCell ZX # set cacparams
PortNumber(ALL) : b2
AllocScheme(LIBERAL) : conservative
SmartCell ZX #
4.6.3 Class of Service Queues
The SmartCell 6A000 performs buffering using a shared-memory architecture. Buffer space is divided into queues for
each class of service (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.