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configured with a maximum bandwidth, the system will assign the class an individual
queue, called the default queue.
Theoretically, each class can be configured with bandwidth of any size, but generally,
the priority classes can occupy 70% of the total bandwidth, and other ordinary classes
and the default class occupy less than 10%. It should be noted that the total
bandwidth assigned to each class and the RTP priority queue should not be larger
than the available bandwidth (the maximum bandwidth of the interface multiplied by
the percentage of the reserved bandwidth).
Please perform the following configurations in policy-class view.
Table 1-14 Configure assured-forwarding and the minimum bandwidth
Operation Command
Configure assured-forwarding for an
ordinary class or default class and
configure the minimum bandwidth for them
af bandwidth { bandwidth | pct percentage }
Delete the assured-forwarding undo af
Configure expedited-forwarding for priority
class and configure the maximum
bandwidth and CBS for it
ef bandwidth bandwidth [ cbs size ]
Delete expedited-forwarding undo ef
This function can only be applied on the outbound direction.
Note:
Priority classes must be configured with absolute bandwidth, while ordinary classes and the default class
can be configured with relative bandwidth (in percentage) or absolute bandwidth.
2) Configure fair queue for the default class
Perform the following configurations in the policy-class view.
Table 1-15 Configure fair queue for the default class
Operation Command
Configure WFQ for the default class
wfq [ queue-number total-queue-number ]
Remove the configured WFQ of the default
class
undo wfq
3Com Router Configuration Guide Addendum for V1.20
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