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Excess Bandwidth Calculations Terminology
The following definitions are used in this discussion of IQE
PIC queue calculations:
- CIR mode—A physical interface is in CIR mode when
one of more of its “children” (logical interfaces in this
case) have a guaranteed rate configured, but some logical interfaces
have a shaping rate configured.
- Default mode—A physical interface is in default
mode if none of its “children” (logical interfaces in
this case) have a guaranteed rate or shaping rate configured.
- Excess mode—A physical interface is in excess mode
when one of more of its “children” (logical interfaces
in this case) have an excess rate configured.
- PIR mode—A physical interface is in PIR mode if
none of its “children” (logical interfaces in this case)
have a guaranteed rate configured, but some logical interfaces have
a shaping rate configured.
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