3Com Router 3012 Betriebsanleitung

3Com Router

Command Reference Guide Addendum for V1.20

http://www.3com.com/

Part No. 10014302

Published January 2004

1.1. Introduction

1.1.1. Scope

This manual provides command reference information for new software features found in V1.20 of

the 3Com Router operating system. Use this addendum to supplement command reference

information found in the 3Com Router Command Reference Guide.

1.1.2. Online Resources

Download the Router 3000 Installation Guide from:

http://support.3com.com/infodeli/tools/routers/R3000Install.pdf

Download the Router 5000 Installation Guide from:

http://support.3com.com/infodeli/tools/routers/5000Install.pdf

Download the 3Com Router Command Reference Guide from:

http://support.3com.com/infodeli/tools/routers/3ComRouterComRef.pdf

Download the 3Com Router Configuration Guide from:

http://support.3com.com/infodeli/tools/routers/3com_configuration_guide.pdf

Download other current software updates and release notes from:

http://www.3com.com/

3Com Router Command Reference Guide Addendum for V1.2

Chapter 1 CBQ Configuration Commands

1.1 af

Syntax

af bandwidth { bandwidth | pct percentage }

undo af

View

Policy-class view

Parameter

bandwidth: Bandwidth in kbit/s in the range of 8 to 1000000.

percentage: Percentage of available bandwidth in the range of 1 to 100.

Description

Using the af command, you can configure the class to perform the

assured-forwarding and the minimum bandwidth used. Using the undo af command,

you can cancel the configuration.

Both user-defined class and default-class are configurable.

The sum of the bandwidths assigned to the assured-forwarding and

expedited-forwarding classes of the same policy must be smaller than the available

bandwidth of the interface applied by the policy.

All bandwidth values involved in a policy must be configured as the same type, for

example, all in absolute value or percentage form.

For the related command, see qos policy, qos-class.

Example

Configure the "database" class of the "3Com" policy to perform assured-forwarding

with the minimum bandwidth as 200kbit/s.

[3Com] qos policy 3Com

[3Com-qospolicy-3Com] qos-class database

[3Com-qospolicy-c-3Com database] af bandwidth 200

3Com Router Command Reference Guide Addendum for V1.2

1.2 car

Syntax

car cir rate [ cbs size ebs size ] [ conform action [ exceed action] ]

undo car

View

Policy-class view

Parameter

cir rate: Committed information rate in the range of 8000 to 155000000 bit/s.

cbs size: Committed burst size, that is, the number of bits that can be sent in each

interval in the range of 15000 to 155000000 bits. By default, it is 15000.

ebs size: Excessive burst size in the range of 0 to 155000000 bits. By default, it is 0.

Conform: Action (defaulted to pass) conducted to the packets when the traffic of the

packets conforms to the CIR.

exceed: Action (defaulted to discard) conducted to the packets when the traffic of the

packets does not conform to the CIR.

action: Action conducted to a packet, including:

 discard: Drop the packet

 remark-dscp-pass new-dscp: Set new-dscp and transmit the packet. It ranges

from 0 to 63.

 remark-prec-pass new-precedence: Set new-precedence of IP and transmit the

packet. It ranges from 0 to 7.

 pass: Transmit the packet.

Description

Using the car command, you can configure traffic monitoring for a class. Using the

undo car command, you can delete the configuration of traffic monitoring.

When being used in interface policy, car can be used in the input or output direction

of the interface.

Applying a policy configured with car on an interface will cause the previous qos car

command ineffective.

If this command is frequently configured on the classes of the same policy, the last

configuration will overwrite the previous ones.

3Com Router Command Reference Guide Addendum for V1.2

For the related command, see qos policy, qos-class.

Example

Configure traffic monitoring for a class. The normal traffic of packets is 38400bit/s.

Burst traffic twice of the normal traffic can pass initially and later the traffic is

transmitted normally when the rate does not exceed 38400bit/s. When the rate

exceeds 38400bit/s, the precedence of the packet turns to 0 and the packet is

transmitted.

[3Com] qos policy 3Com

[3Com-qospolicy-3Com] qos-class database

[3Com-qospolicy-c-3Com database] car cir 38400 cbs 76800 ebs 0 conform pass

exceed remark-prec-pass 0

1.3 debugging qos

Syntax

debugging qos { { cbq { af | be | ef | class } } | cq | pq | wfq } [ interface type

number ]

undo debugging qos { { cbq { af | be | ef | class } } | cq | pq | wfq } [ interface type

number ]

View

All views

Parameter

cbq af: Enable the debugging of confirming forwarding information in CBQ.

cbq be: Enable the debugging of best-effort forwarding information in CBQ.

cbq ef: Enable the debugging expedited-forwarding information in CBQ.

cbq class: Enable the debugging of the class information of CBQ.

cq: Enable the debugging of the CQ.

pq: Enable the debugging of the PQ.

wfq: Enable the debugging of the WFQ.

interface type number: Enable the debugging of the interface QoS. If this parameter

is not used, the QoS debugging of all interfaces will be enabled.

3Com Router Command Reference Guide Addendum for V1.2

Description

Using the debugging qos command, you can enable the debugging of QoS. Using

the undo debugging qos command, you can disable the debugging of Qos.

By default, the debugging of QoS is disabled.

Example

Enable the debugging of the CBQ class information on the interface Serial0.

[Router] debugging qos cbq class interface serial 0

1.4 display qos cbq interface

Syntax

display qos cbq interface [ type number ]

View

All views

Parameter

interface

type

: Interface type.

number: Interface number.

Description

Using the display qos cbq interface command, you can browse the class-based

queue configuration information and running status of the specified interface or all

interfaces.

Example

[3Com] display qos cbq interface

Interface: Ethernet0

Class Based Queueinging: (Output queue: Total Size/Discards)

CBQ: 0/0

Queue Size: 0/0/0 (EF/AF/BE)

BE Queues: 0/0/256 (Active/Max active/Total)

AF Queues: 1 (Allocated)

Bandwidth(Kbps): 74992/75000 (Available/Max reserve)

3Com Router Command Reference Guide Addendum for V1.2

1.5 display qos class

Syntax

display qos class [ class-name ]

View

All views

Parameter

class-name: Name of the class. By default, the information of all classes are

displayed.

Description

Using the display qos class command, you can browse the class information

concerning router configuration.

Example

[3Com] display qos class

QoS Class Configuration Information:

Class: 3COM

Operator: Logical AND

Rules: If-match ip-precedence 5

Class: database

Operator: Logical AND

Rules: If-match ACL 131

If-match inbound-interface Ethernet0

1.6 display qos policy

Syntax

display qos policy [policy-name [ class class-name ] ]

View

All views

3Com Router Command Reference Guide Addendum for V1.2

Parameter

policy-name: Name of policy. By default, the configuration information of all policies

are displayed.

class-name: Class name in the policy.

Description

Using the display qos policy command, you can browse the configuration

information of the specified or all classes of the specified or all policies.

Example

[3Com] display qos policy

QoS Policy Configuration Information:

Policy: test

Class: default-class

Behavior(s):

-none-

Class: AF

Behavior(s):

Committed Access Rate:

CIR 8000 (Bps), CBS 15000 (Bit), EBS 0 (Bit)

Conform Action: pass

Exceed Action: discard

Policy: 3Com

Class: default-class

Behavior(s):

-none-

Class: 3COM

Behavior(s):

Expedited Forwarding

Bandwidth 8 (Kbps) Burst 1500 (Byte)

Class: AF

Behavior(s):

Assured Forwarding

Bandwidth 20 (%)

Discard Method: Tail (Max Threshold 64 packets)

3Com Router Command Reference Guide Addendum for V1.2

Committed Access Rate:

CIR 8000 (Bps), CBS15000 (Bit), EBS 0 (Bit)

Conform Action: remark mpls exp 3 and pass

Exceed Action: discard

Class: SHAPE

Behavior(s):

Traffic Shape:

CIR 8000 (Bps), CBS 15000 (Bit), EBS 0 (Bit)

Queue Length 1024 (Packet)

1.7 display qos policy interface

Syntax

display qos policy interface [ { type number }[ inbound | outbound ]

View

All views

Parameter

interface

type

: Interface type.

number: Interface number.

Description

Using the display qos policy interface command, you can view configuration

information and operating status of the policy on the specified interface, the specified

PVC on specifiedATM interface or on all interfaces and PVC.

Example

[3Com] display qos policy interface Ethernet 0

Interface: Ethernet10

Direction: Outbound

Policy: 3Com

Class: default-class

Matched: 0/0 (Packets/Bytes)

Rule(s): If-match any

3Com Router Command Reference Guide Addendum for V1.2

Behavior(s):

Default Queue:

Flow Based Fair Queueing

Max number of hashed queues 256

Matched: 0/0 (Packets/Bytes)

Enqueued: 0/0 (Packets/Bytes)

Discarded: 0/0 (Packets/Bytes)

Discard Method: Tail

Class: 3COM

Matched: 0/0 (Packets/Bytes)

Operator: Logical AND

Rule(s): If-match ip-precedence 5

Behavior(s):

Expedited Forwarding

Bandwidth 8 (Kbps), Burst 1500 (Byte)

Matched: 0/0 (Packets/Bytes)

Enqueued: 0/0 (Packets/Bytes)

Discarded: 0/0 (Packets/Bytes)

Class: AF

Matched: 0/0 (Packets/Bytes)

Operator: Logical AND

Rule(s): If-match ACL 131

If-match ACL 101

If-match inbound interface Ethernet0

Behavior(s):

Traffic Police:

CIR 8000 (bps), CBS 15000 (bit), EBS 0 (bit)

Conform Action: remark mpls exp 3 and pass

Exceed Action: discard

Conformed: 0/0 (Packets/Bytes)

Exceeded: 0/0 (Packets/Bytes)

Assured Forwarding

Bandwidth 14998 (Kbps)

Matched: 0/0 (Packets/Bytes)

Enqueued: 0/0 (Packets/Bytes)

Discarded: 0/0 (Packets/Bytes)

Class: SHAPE

Matched: 0/0 (Packets/Bytes)

Operator: Logical AND

Rule(s): -none-

Behavior(s):

3Com Router Command Reference Guide Addendum for V1.2

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