Digisol DG-GS4826S, Руководство по управлению

Страница: 994 / 1344

C
HAPTER
41 | Quality of Service Commands
– 994 –
C
OMMAND
U
SAGE
u
The set cos command is used to set the CoS value in the VLAN tag for
matching packets.
u
The set ip dscp and set ip precedence commands are used to set
these priority values in the packet’s ToS field for matching packets.
u
Each of these commands function at the same level of priority.
Therefore setting any one of these commands will overwrite the action
configured by the last set command.
E
XAMPLE
This example creates a policy called “rd-policy,” uses the class command to
specify the previously defined “rd-class,” uses the set cos command to
classify the service that incoming packets will receive, and then uses the
police flow command to limit the average bandwidth to 100,000 Kbps, the
burst rate to 4000 bytes, and configure the response to drop any violating
packets.
Console(config)#policy-map rd-policy
Console(config-pmap)#class rd-class
Console(config-pmap-c)#set cos 3
Console(config-pmap-c)#police flow 10000 4000 conform-action transmit
violate-action drop
Console(config-pmap-c)#
service-policy
This command applies a policy map defined by the policy-map command
to the ingress side of a particular interface. Use the no form to remove this
mapping.
S
YNTAX
[ no ] service-policy input policy-map-name
input - Apply to the input traffic.
policy-map-name - Name of the policy map for this interface.
(Range: 1-32 characters)
D
EFAULT
S
ETTING
No policy map is attached to an interface.
C
OMMAND
M
ODE
Interface Configuration (Ethernet, Port Channel)
C
OMMAND
U
SAGE
u
Only one policy map can be assigned to an interface.
u
First define a class map, then define a policy map, and finally use the
service-policy command to bind the policy map to the required
interface.