Cabletron Systems SmartSwitch 6500 User Manual page 81

Virtual Ports and Static Connections
However, on a point-to-multipoint connection there should be no traffic in the backward direction, so we define the
backward traffic descriptor with its Cell Loss Priorities set to zero (0)
Smart6500 # add trafficdescriptor
TrafficType(UBR)
TrafficDescriptorType(11)
PCRCLP01(100)
QOSCLASS(0)
AalType(5)
Smart6500 #
Use
2.
show trafficdescriptor
Smart6500 # show trafficdescriptor
========================================================================================
TD# Traff Desc QoS
Type Type
=========================================================================================
1 NRTVBR 7 0
2 CBR 2 1
3 UBR 11 0
4 UBR 11 0
176 NRTVBR 2 1
Smart6500 #
In the example above, traffic descriptor three (3) will be used in the forward direction, and traffic descriptor four (4)
will be used in the backward direction.
3. Use to successively create point-to-multipoint PVCs for ports B2, B3, and C1.
add pvc
Smart6500 # add pvc
ConnType(PTP)
Port-1-Number()
Port-1-VPCI()
Port-1-VCI()
Port-2-Number()
Port-2-VPCI()
Port-2-VCI()
Port1-to-Port2TrafficDescriptorIndex()
Port2-to-Port1TrafficDescriptorIndex()
Smart6500 #
4. Perform step 3 for ports 7a3 and 7a4.
Connect the workstations to their respective ports.
5.
6. Configure the workstations for the same subnet and VPCI/VCI pair = 0/101.
The broadcasting workstation on port 7a1 can send traffic to the receiving workstations on ports 7a2, 7a3, and 7a4.
< This is the backward traffic descriptor
:
:
: 0 < Set PCRCLP01 to zero
:
:
to obtain the new traffic descriptors' index numbers.
Peak Cell Rate Sust Cell Rate
(Kb/s) (Kb/s)
CLP_0 CLP_0+1 CLP_0
0 10872 5436
0 100 0
0 100 0
0 0 0
0 1585 0
: pmp
: 7a1
: 0
: 101
: 7a2
: 0
: 101
: 3
: 4
Max Burst Size
(Kb/s)
CLP_0+1 CLP_0 CLP_0+1
0 2052 0
0 0 0
0 0 0
0 0 0
0 0 0
PVC Connections
Min Cell Aal Type
Rate
(Kb/s)
0 5
0 5
0 5
0 5
0 5
SmartSwitch 6500 User Guide 6-3