Dell PowerEdge M805 Manuel d'utilisateur Page 380

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368 QoS Commands
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match ip precedence
Use the
match ip precedence
command in Class-Map Configuration mode to add to the specified
class definition a match condition based on the value of the IP precedence field.
Syntax
match ip precedence
precedence
precedence
—Specifies the precedence field in a packet. This field is the high-order three
bits of the Service Type octet in the IP header. (Integer Range: 0 - 7)
Default Configuration
This command has no default configuration.
Command Mode
Class-Map Configuration mode
User Guidelines
The
ip dscp
,
ip precedence
, and
ip tos
match conditions are alternative ways to specify a
match criterion for the same Service Type field in the IP header but with a slightly different
user notation.
To specify a match on all precedence values, use the
match ip tos
tosbits tosmask
command
with tosbits set to "0" (zero) and tosmask set to hex "1F."
Example
The following example displays adding a match condition based on the value of the IP
precedence field.
console(config-classmap)#match ip precedence 1
match ip tos
Use the
match ip tos
command in Class-Map Configuration mode to add to the specified class
definition a match condition based on the value of the IP TOS field in a packet. This field is
defined as all eight bits of the Service Type octet in the IP header.
Syntax
match ip tos
tosbits
tosmask
tosbits
—Specifies a two-digit hexadecimal number. (Range: 00 - ff)
tosmask
—Specifies the bit positions in the tosbits parameter that are used for
comparison against the IP TOS field in a packet. This value of this parameter is expressed
as a two-digit hexadecimal number. (Range: 00 - ff)
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