Dell 9.7(0.0) Plumbing Product User Manual


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TE 0/10 mapONE
TE0/11 mapTWO
Display summary information about a color policy for a specific interface.
Dell# show qos dscp-color-policy summary te 0/10
Interface dscp-color-map
TE 0/10 mapONE
Display detailed information about a color policy for a specific interface
Dell# show qos dscp-color-policy detail te 0/10
Interface TenGigabitEthernet 0/10
Dscp-color-map mapONE
yellow 4,7
red 20,30
Enabling QoS Rate Adjustment
By default, while rate limiting, policing, and shaping, the system does not include the Preamble, SFD, or
the IFG fields. These fields are overhead; only the fields from MAC destination address to the CRC are
used for forwarding and are included in these rate metering calculations.
The Ethernet packet format consists of:
Preamble: 7 bytes Preamble
Start frame delimiter (SFD): 1 byte
Destination MAC address: 6 bytes
Source MAC address: 6 bytes
Ethernet Type/Length: 2 bytes
Payload: (variable)
Cyclic redundancy check (CRC): 4 bytes
Inter-frame gap (IFG): (variable)
You can optionally include overhead fields in rate metering calculations by enabling QoS rate adjustment.
QoS rate adjustment is disabled by default, and no qos-rate-adjust is listed in the running-
configuration
Include a specified number of bytes of packet overhead to include in rate limiting, policing, and
shaping calculations.
CONFIGURATION mode
qos-rate-adjust overhead-bytes
For example, to include the Preamble and SFD, enter qos-rate-adjust 8. For variable length
overhead fields, know the number of bytes you want to include.
The default is disabled.
Quality of Service (QoS)
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