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Chapter 13 Link scheduler configuration
Chapter contents
Introduction........................................................................................................................................................152
Applying scheduling at the bottleneck ...........................................................................................................152
Using traffic classes .......................................................................................................................................152
Introduction to Scheduling ...........................................................................................................................153
Priority ....................................................................................................................................................153
Weighted fair queuing (WFQ) ................................................................................................................153
Shaping ...................................................................................................................................................153
Burst tolerant shaping or wfq ..................................................................................................................154
Hierarchy ................................................................................................................................................154
Quick references..................................................................................................................................................155
Setting the modem rate .................................................................................................................................155
Command cross reference .............................................................................................................................156
Link scheduler configuration task list...................................................................................................................156
Defining the access control list profile ...........................................................................................................157
Packet classification .................................................................................................................................157
Creating an access control list ..................................................................................................................158
Creating a service policy profile .....................................................................................................................159
Specifying the handling of traffic-classes ........................................................................................................161
Defining fair queuing weight ...................................................................................................................161
Defining the bit-rate ...............................................................................................................................162
Defining absolute priority .......................................................................................................................162
Defining the maximum queue length ......................................................................................................162
Specifying the type-of-service (TOS) field ...............................................................................................162
Specifying the precedence field ................................................................................................................163
Specifying differentiated services codepoint (DSCP) marking .................................................................163
Specifying layer 2 marking ......................................................................................................................164
Defining random early detection .............................................................................................................165
Discarding Excess Load ...........................................................................................................................165
Quality of Service for routed RTP streams ....................................................................................................165
Devoting the service policy profile to an interface .........................................................................................167
Displaying link arbitration status ..................................................................................................................168
Displaying link scheduling profile information .............................................................................................168
Enable statistics gathering .............................................................................................................................168