Home » HP Manuals » Servers » HP 6120XG » Manual Viewer

HP 6120XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 183

Table 5-6., Applying QoS Options to Traffic Types Defined by QoS Classifiers

Add to My Manuals
Save this manual to your list of manuals

Page 183 highlights

Quality of Service (QoS): Managing Bandwidth More Effectively Preparation for Configuring QoS 2. Select the QoS option you want to use. Table 5-6 lists the traffic types (QoS classifiers) and the QoS options you can use for prioritizing or setting a policy on these traffic types: Table 5-6. Applying QoS Options to Traffic Types Defined by QoS Classifiers QoS Options for Prioritizing Outbound Traffic QoS Classifiers Option 1: Configure80 2.1p Priority Rules Only Prioritize traffic by sending specific packet types (determined by QoS classifier) to different outbound port queues on the switch. Rely on VLAN-tagged ports to carry packet priority as an 802.1p value to downstream devices. IP-ToS IP- Source Precedence DiffServ -Port Yes1 Yes Yes Option 2: Prioritize traffic by sending specific packet No Configure types (determined by QoS classifier) to ToS DSCP different outbound port queues on the Policies switch. with 802.1p Propagate a service policy by reconfiguring Priorities the DSCP in outbound IP packets according to packet type. The packet is placed in an outbound port queue according to the 802.1p priority configured for that DSCP policy. (The policy assumes that downstream devices can be configured to recognize the DSCP in IP packets and implement the service policy it indicates.) Yes Yes Use VLAN-tagged ports to include packet priority as an 802.1p value to downstream devices. 1 In this mode the configuration is fixed. You cannot change the automatic priority assignment when using IP-ToS Precedence as a QoS classifier. 3. If you want 802.1p priority settings to be included in outbound packets, ensure that tagged VLANs are configured on the appropriate downstream links. 4. Determine the actual QoS configuration changes you will need to make on each QoS-capable device in your network in order to implement the desired policy. Also, if you want downstream devices to read and use DSCPs in IP packets from the switch, configure them to do so by enabling ToS Differentiated Service mode and making sure the same DSCP policies are configured. 5-12

Section	Page
Getting Started	15
Contents	15
Introduction	16
Conventions	16
Command Syntax Statements	16
Command Prompts	17
Screen Simulations	17
Configuration and Operation Examples	17
Keys	17
Sources for More Information	18
Getting Documentation From the Web	20
Online Help	20
Need Only a Quick Start?	22
IP Addressing	22
To Set Up and Install the Switch in Your Network	22
Physical Installation	22
Static Virtual LANs (VLANs)	24
Contents	24
Overview	26
Introduction	27
General VLAN Operation	27
Types of Static VLANs Available in the Switch	28
Terminology	29
Static VLAN Operation	30
VLAN Environments	31
VLAN Operation	32
Overlapping (Tagged) VLANs	33
Per-Port Static VLAN Configuration Options	35
VLAN Operating Rules	36
General Steps for Using VLANs	39
Multiple VLAN Considerations	40
Single Forwarding Database Operation	40
Example of an Unsupported Configuration and How To Correct It	42
Multiple Forwarding Database Operation	43
Configuring VLANs	44
Menu: Configuring Port-Based VLAN Parameters	44
CLI: Configuring Port-Based and Protocol-Based VLAN Parameters	50
Web: Viewing and Configuring VLAN Parameters	62
802.1Q VLAN Tagging	63
Special VLAN Types	68
VLAN Support and the Default VLAN	68
The Primary VLAN	68
The Secure Management VLAN	69
Voice VLANs	77
Effect of VLANs on Other Switch Features	78
Spanning Tree Operation with VLANs	78
IP Interfaces	79
VLAN MAC Address	79
Port Trunks	79
Port Monitoring	79
Jumbo Packet Support	80
VLAN Restrictions	80
GVRP	81
Contents	81
Overview	82
Introduction	83
General Operation	84
Per-Port Options for Handling GVRP “Unknown VLANs”	87
Per-Port Options for Dynamic VLAN Advertising and Joining	89
GVRP and VLAN Access Control	91
Advertisements and Dynamic Joins	91
Port-Leave From a Dynamic VLAN	91
Planning for GVRP Operation	92
Configuring GVRP On a Switch	93
Menu: Viewing and Configuring GVRP	93
CLI: Viewing and Configuring GVRP	94
Web: Viewing and Configuring GVRP	98
GVRP Operating Notes	98
Multiple Instance Spanning-Tree Operation	100
Contents	100
Overview	102
802.1s Multiple Spanning Tree Protocol (MSTP)	105
MSTP Structure	106
How MSTP Operates	108
Regions, Legacy STP and RSTP Switches, and the Common Spanning Tree (CST)	110
Terminology	112
Operating Rules	114
MSTP Compatibility with RSTP or STP	115
Configuring MSTP	116
Planning an MSTP Application	116
MSTP Configuration Overview	118
Configuring MSTP Operation Mode and Global Settings	120
Configuring MSTP Per-Port Parameters	125
Configuring MST Instance Parameters	134
Configuring MST Instance Per-Port Parameters	136
Enabling or Disabling Spanning Tree Operation	139
MSTP VLAN Configuration Enhancement	141
Displaying MSTP Statistics and Configuration	148
Displaying Global MSTP Status	149
Troubleshooting an MSTP Configuration	157
Displaying the Change History of Root Bridges	157
Displaying Debug Counters for All MST Instances	160
Displaying Debug Counters for One MST Instance	161
Displaying Debug Counters for Ports in an MST Instance	163
Field Descriptions in MSTP Debug Command Output	165
Troubleshooting MSTP Operation	168
Loop Protection	169
Configuring Loop Protection	170
Viewing Loop Protection Status	171
Quality of Service (QoS): Managing Bandwidth More Effectively	172
Contents	172
Introduction	174
Terminology	177
Overview	178
Classifiers for Prioritizing Outbound Packets	181
Preparation for Configuring QoS	182
Preserving 802.1p Priority	182
Steps for Configuring QoS on the Switch	182
Viewing the QoS Configuration	184
Using QoS Classifiers to Configure Quality of Service for Outbound Traffic	185
QoS IP Type-of-Service (ToS) Policy and Priority	186
QoS Source-Port Priority	198
Differentiated Services Codepoint (DSCP) Mapping	204
Default Priority Settings for Selected Codepoints	205
Notes on Changing a Priority Setting	207
QoS Queue Configuration	211
QoS Operating Notes and Restrictions	212
IP Multicast (IGMP) Interaction with QoS	214
Numerics	215
A	215
B	215
C	215
D	215
F	215
G	216
H	216
I	216
J	216
L	216
M	216
N	217
O	217
P	217
Q	217
R	217
S	217
T	219
U	219
V	220

Match case Limit results 1 per page

5-12

Quality of Service (QoS): Managing Bandwidth More Effectively

Preparation for Configuring QoS

Select the QoS option you want to use. Table 5-6 lists the traffic types (QoS

classifiers) and the QoS options you can use for prioritizing or setting a

policy on these traffic types:

Table 5-6.

Applying QoS Options to Traffic Types Defined by QoS Classifiers

If you want 802.1p priority settings to be included in outbound packets,

ensure that tagged VLANs are configured on the appropriate downstream

links.

Determine the actual QoS configuration changes you will need to make

on each QoS-capable device in your network in order to implement the

desired policy. Also, if you want downstream devices to read and use

DSCPs in IP packets from the switch, configure them to do so by enabling

ToS Differentiated Service mode and making sure the same DSCP policies

are configured.

QoS Options for Prioritizing Outbound Traffic

QoS Classifiers

IP-ToS

Precedence

IP-

DiffServ

Source

-Port

Option 1:

Configure80

2.1p Priority

Rules Only

Prioritize traffic by sending specific packet

types (determined by QoS classifier) to

different outbound port queues on the

switch.

Rely on VLAN-tagged ports to carry packet

priority as an 802.1p value to downstream

devices.

Yes

Option 2:

Configure

ToS DSCP

Policies

with 802.1p

Priorities

Prioritize traffic by sending specific packet

types (determined by QoS classifier) to

different outbound port queues on the

switch.

Propagate a service policy by reconfiguring

the DSCP in outbound IP packets according

to packet type. The packet is placed in an

outbound port queue according to the

802.1p priority configured for that DSCP

policy. (The policy assumes that

downstream devices can be configured to

recognize the DSCP in IP packets and

implement the service policy it indicates.)

Use VLAN-tagged ports to include packet

priority as an 802.1p value to downstream

devices.

Yes

In this mode the configuration is fixed. You cannot change the automatic priority assignment

when using IP-ToS Precedence as a QoS classifier.