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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
627
Console(config)#map ip precedence
Console(config)#
map ip tos
Use this command to enable and set IP TOS priority mapping (i.e., IP Type of Service priority mapping). Use the no form to
disable the feature or restore a
Default Setting.
Syntax
map ip tos [tos-value cos cos-queue]
no map ip tos [tos-value]
tos-value -4-bit TOS value. (Range: 0-15)
cos-queue - Port Class-of-Service queue. (Range: 0-3)
Default Setting
Status: Disabled
The TOS default values are defined in the following table. All the TOS values not defined are mapped to CoS queue 0.
IP TOS Value Requested Service Default CoS Output Queue
0 Normal service 0
1 Minimize monetary cost 0
2 Maximize reliability 1
4 Maximize throughput 2
8 Minimize delay 3
Table 5-82 Mapping IP TOS to CoS Queues
Command Mode
Global Configuration
Command Usage
• The command map ip tos enables the feature on the switch. The command map ip tos tos-value cos cos-queue maps
IP TOS values to port CoS queues.
• The precedence for priority mapping is IP Port, IP Precedence/DSCP/TOS, and default switchport priority.
• This command sets the IP TOS priority for all interfaces.
• IP Precedence, IP DSCP, and IP TOS Priority cannot all be enabled at the same time. Enabling one of these priority
types automatically disables the others.
Example
The following example shows how to map IP TOS value 0 to CoS value 1 and enable the feature on the switch.