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3Com 3500 User Manual

Page 715

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qos control define

715

Procedure

1 Enter a control number.

The valid range is

5

through

50

, with the next available number as the

default.

2 Enter a control name.

3 Enter the rate limit type:

none

,

receivePort

, or

aggregate

.

The default is

none

. To drop all conforming packets for a set of ports, use

receivePort

or

aggregate

, set the rate limit to

0

, and specify the

appropriate set of ports.

You can apply aggregate rate limits only to flow classifiers.

4 For the

receivePort

or

aggregate

limit type, enter the service level

for conforming packets as

high

,

best

, or

low

.

For the

none

rate limit type, enter the service level for conforming

packets as

high

,

best

,

low

, or

drop

.

The default is

best

(best effort).

If you use

drop

, the system drops all traffic on all ports for the classifier

that is associated with the control. Ping packets are ICMP, not UDP/TCP, so
they are not dropped.

5 Specify whether the conforming packets are loss eligible (

yes

or

no)

.

The default is

no

.

6 If you have selected

receivePort

or

aggregate

for the rate limit

type, you are prompted for the following information:

a Enter the service level for excess packets (

high

,

best

,

low

, or

drop

).

The default is

best

.

b Specify whether excess packets are loss eligible (

yes

or

no

).The

default is

yes

.

c Specify how the rate limit is expressed (

percentage

of port

bandwidth or

KBytes/sec

.

KBytes/sec

is the default.

Every weekday

Starting time (hh:mm)

Ending time (hh:mm)

Every weekend

Starting time (hh:mm)

Ending time (hh:mm)

Input Time Type

Options