Dell N1100-ON, Справочное руководство

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Audio Visual Bridging Commands
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• Class A : pcp = 3, remap = 1
• Class B : pcp = 2, remap = 1
Command Mode
Global Configuration
User Guidelines
The IEEE802.1 Qav standard supports time-sensitive traffic streams by
pacing all switch traffic, including legacy asynchronous Ethernet traffic,
through queuing and forwarding. Dell EMC Networking switches support
two stream reservation (SR) classes (A and B). Received traffic using a code
point identified as belonging to class A or B are placed on a queue that uses a
credit based shaper on egress. IEEE 802.1Qav does not specify any form of
ingress metering or policing.
When an IEEE 802.1Qav talker registers a stream, it identifies whether the
stream is class A or B and specifies the bandwidth required. Class A traffic has
a higher transmission priority than class B traffic. The bandwidth that may be
reserved is limited to 75% of the total bandwidth.
The priorities received in a frame are mapped onto traffic classes for trusted
ports. See the output of the show classofservice dot1pmapping command for
the mappings.
Command History
Introduced in version 6.2.0.1 firmware.
Example
This example maps class A traffic onto user priority 4.
console(config)#msrp srclassqav class a pcp 4
console(config)#show msrp summary
MSRP Global Admin Mode......................... Enabled
MSRP Talker Pruning............................ Disabled
MSRP Maximum Fan-in Ports...................... 12
MSRP Boundary Propagation...................... Disabled
QAV class A priority........................... 4
QAV class A remap priority..................... 1
QAV class B priority........................... 2
QAV class B remap priority..................... 1