Displaying And Debugging Cbq - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
For an FR subinterface, FR traffic shaping must be disabled on its main interface.
When configuring a QoS policy for a main interface, consider the following:
You can configure CQ, PQ, WFQ, CBQ, or RTPQ on the main interface only when
LR is not configured on its subinterfaces;
You can configure an LR policy on the main interface only when no LR policy is
configured on its subinterfaces.
During your configuration, you can see prompts if above restrictions are not met.
Caution:
After traffic shaping is enabled on an FR main interface, all policies containing LR
behaviors are to be removed from its subinterfaces.
After you change the available bandwidth of a main interface with the qos
max-bandwidth command, all policies containing LR behaviors are to be removed
from its subinterfaces if the new available bandwidth is smaller than the sum of the
LRs configured for the subinterfaces.
III. Applying a QoS policy to an ATM interface
In the inbound direction, only DSCP remark and IP precedence remark are
allowed. In the outbound direction, DSCP remark, IP precedence remark, ATM
CLP bit remark, EF, AF, WFQ, CBQ, and GTS are allowed. Although ATM PVCs
can support policies with GTS included, you cannot directly configure GTS on
ATM PVCs.
On an ATM PVC interface, DSCP remark, IP precedence remark, or CBQ is valid
only when IPoA applies. They are invalid when IPoEoA, PPPoA, or PPPoEoA
applies.
For IPoEoA, PPPoA, and PPPoEoA packets, DSCP remark and IP precedence
remark are valid only on virtual template or virtual Ethernet interfaces. On ATM
physical interfaces, they are invalid.

3.6.6 Displaying and Debugging CBQ

After the above configuration, execute display commands in any view to display the
running of the CBQ configuration, and to verify the effect of the configuration.
Table 3-55 Display and debug CBQ
Configure the QoS policy traffic statistical
interval and rate updating interval
Operation
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3-34
Chapter 3 Congestion Management
Command
flow-interval qos
[ update-interval seconds ]
flow-interval