Class of Service Configuration
3-153
3
CLI – The following example globally enables DSCP Priority service on the switch,
maps DSCP value 0 to CoS value 1 (on port 1), and then displays the DSCP Priority
settings.
* Mapping specific values for IP DSCP is implemented as an interface configuration
command, but any changes will apply to the all interfaces on the switch.
Mapping IP Port Priority
You can also map network applications to Class of Service values based on the IP
port number (i.e., TCP/UDP port number) in the frame header. Some of the more
common TCP service ports include: HTTP: 80, FTP: 21, Telnet: 23 and POP3: 110.
Command Attributes
• IP Port Priority Status – Enables or disables the IP port priority.
• IP Port Priority Table – Shows the IP port to CoS map.
• IP Port Number (TCP/UDP) – Set a new IP port number.
• Class of Service Value – Sets a CoS value for a new IP port. Note that “0”
represents low priority and “7” represent high priority.
Web – Click Priority, IP Port Priority Status. Set IP Port Priority Status to Enabled.
Figure 3-92 IP Port Priority Status
Console(config)#map ip dscp 4-189
Console(config)#interface ethernet 1/1 4-116
Console(config-if)#map ip dscp 1 cos 0 4-190
Console(config-if)#end
Console#show map ip dscp ethernet 1/1 4-191
DSCP mapping status: disabled
Port DSCP COS
--------- ---- ---
Eth 1/ 1 0 0
Eth 1/ 1 1 0
Eth 1/ 1 2 0
Eth 1/ 1 3 0
.
.
.
Eth 1/ 1 61 0
Eth 1/ 1 62 0
Eth 1/ 1 63 0
Console#
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