NETGEAR GS724T - ProSafe Switch Instruction Manual

350 East Plumeria Drive
San Jose, CA 95134
USA
July 2011
202-10919-01
v1.0
GS716T and GS724T Smart
Switches
Ethernet Audio Video
Administration Guide

2
GS716T and GS724T Gigabit Smart Switches
©2011 NETGEAR, Inc. All rights reserved.
No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated
into any language in any form or by any means without the written permission of NETGEAR, Inc.
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visit us at http://support.netgear.com.
Phone (US & Canada only): 1-888-NETGEAR
Phone (Other Countries): See Support information card.
Trademarks
NETGEAR, the NETGEAR logo, ReadyNAS, ProSafe, Smart Wizard, Auto Uplink, X-RAID2, and NeoTV are
trademarks or registered trademarks of NETGEAR, Inc. Microsoft, Windows, Windows NT, and Vista are
registered trademarks of Microsoft Corporation. Other brand and product names are registered trademarks or
trademarks of their respective holders.
Statement of Conditions
To improve internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes
to the products described in this document without notice. NETGEAR does not assume any liability that may occur
due to the use, or application of, the product(s) or circuit layout(s) described herein.
Revision History
Publication Part Number Version Publish Date Comments
202-10919-01 v1.0 July 2011 Initial Release

3
Contents
Chapter 1 Ethernet Audio Video
Multiple Registration Protocol Configuration . . . . . . . . . . . . . . . . . . . . . . . .5
MRP Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
MRP Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
MMRP Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
MSRP Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
MSRP Reservation Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Qav Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
MSRP Streams Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
802.1AS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
802.1AS Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
802.1AS Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
802.1AS Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Index
Index

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1
1. Ethernet Audio Video
The Ethernet Audio Video (Ethernet AV or EAV) features available on the GS716T and GS724T
Smart Switches provide audio-video quality of service to Ethernet to enhance wire-line
networking for digital entertainment content streaming. The GS716T and GS724T switches
support the following EAV features:
• End-to-end Bandwidth guarantees to Ethernet using QoS and admission control
• Stream reservation through the Multiple Registration Protocol (MRP) and Multiple Stream
Reservation Protocol (MSRP)
• Traffic-shaping profiles through 802.1Qav
• Precise timing and synchronization in Ethernet networks by using IEEE 802.1AS
EAV, which is also known as Audio Video Bridging (AVB), helps ensure that the synchronization
requirements are met for time-sensitive applications, such as audio and video, across bridged
and virtual bridged local area networks consisting of LAN media where the transmission delays
are fixed and symmetrical. This includes the maintenance of synchronized time during normal
operation and following addition, removal, or failure of network components and network
reconfiguration.
Use the MRP and 802.1AS links under the Switching tab to configure and monitor the following
EAV features:
• Multiple Registration Protocol Configuration on page 5
• 802.1AS on page 17
Multiple Registration Protocol Configuration
Multiple Registration Protocol (MRP) is a base registration protocol that enables devices
running an MRP application to register attributes to other devices in a network. MRP
provides an application to register attributes such as bandwidth requirement for a given AV
stream and MAC address information. It is used by various applications to propagate the
registration. GS716T and GS724T Smart Switches support the following MRP applications:
• Multiple MAC Reservation Protocol (MMRP)
• Multiple Stream Reservation Protocol (MSRP)

Ethernet Audio Video
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GS716T and GS724T Gigabit Smart Switches
MMRP allows for the propagation MAC address information in the network, and allows for the
registration and deregistration of both individual MAC address information and group MAC
address membership. End stations may request to join or leave a multicast group, or to
register an individual MAC address with a specific VLAN. MAC address entries can be
dynamically registered and deregistered if MMRP is administratively enabled on GS716T and
GS724T Smart Switches.
MSRP reserves necessary resources in the network to facilitate time sensitive traffic to flow
end to end. In a typical network, there are multiple Talkers (those who transmit streams) and
multiple Listeners (those who receive streams from one or many Talkers). Each flow has
specific bandwidth, frame rate, and time sync requirements. With the use of MSRP these
resources are guaranteed through all intermediate devices that are between any talker and
listener.
Note: MRP framework must be available and enabled in all intermediate
devices to ensure that the propagation of the attributes occurs
throughout the network.
With MRP, network attributes are declared, registered, withdrawn, and removed completely
dynamically without any user intervention. This dynamic nature is especially useful in
networks where:
• Network attributes are likely to change frequently, requiring reconfiguration of the
intermediate devices.
• Recipients of these attributes frequently increase or decrease in number.
• Each of these changes without a dynamic self-adjusting framework would require
constant attention from the network administrator.
MRP Configuration
Use the MRP Configuration page to configure global MRP settings for the switch. To access
the basic MRP Configuration page click the Switching tab, then click MRP >Basic > MRP
Configuration.

Ethernet Audio Video
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GS716T and GS724T Gigabit Smart Switches
To configure the MRP settings:
1. Enable or disable MMRP globally on the switch. MMRP provides an application to
register MAC address information. The default mode is Disable.
2. Enable or disable MSRP globally on the switch. MSRP provides an application to register
bandwidth requirement for a given AV stream. The default mode is Disable.
3. If you enable MSRP, configure the following MSRP settings:
a. Enable or disable MSRP talker pruning. The MSRP talker is the source of an AV
stream. Default mode is Disable.
b. Enable or disable the MRP Periodic State Machine for MMRP on the system. Default
mode is Disable. For this setting to take effect, MMRP must be enabled, but MSRP
does not need to be enabled.
c. Enable or disable the MRP Periodic State Machine for MSRP on the system. Default
mode is Disable.
d. In the MSRP Max Fan In Ports field, specify the maximum number of the ports
where MSRP registrations are allowed.
e. In the MSRP Max Frame Size field, specify the maximum frame size allowed for an
MSRP frame. The valid range for the frame size is 64–9216 octets.
4. Configure the 802.1Qav mapping for the Class A and/or Class B EAV streams. Class A
streams have a higher transmission priority than Class B traffic.
• In the EAV Priority field, specify the priority for each EAV stream class. The range is
0–7.
• In the EAV Remap Priority field, specify the remap priority for non-EAV traffic. The
range is 0–7.

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GS716T and GS724T Gigabit Smart Switches
5. Click Cancel to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
6. If you make any changes to the page, click Apply to apply the change to the system.
MRP Port Settings
Use the MRP Port Settings page to configure the per-port MRP mode and timer settings. The
timers control when and how often various messages are transmitted on each interface.
To access the Port Settings page click Switching>MRP >Advanced > Port Settings in the
navigation tree. In the following image, the MMRP mode on ports g4 and g5 is being enabled.
To configure the MRP port parameters:
1. Select the check box next to the port to configure. You can select multiple ports to apply
the same settings to the selected interfaces. Select the check box in the heading row to
apply the same settings to all interfaces.
2. Configure the following MRP port settings:
a. Enable or disable MMRP on the interface. The default mode is Disable.
b. Enable or disable MSRP on the interface. The default mode is Disable.

Ethernet Audio Video
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GS716T and GS724T Gigabit Smart Switches
c. Specify the value, in centiseconds, of the MRP Join Timer. The range is 10 to 100
centiseconds, and the default value is 20.
d. Specify the value, in centiseconds, of the MRP Leave Timer. The range is 10 to 600
centiseconds, and the default value is 120.
e. Specify the value, in centiseconds, of the MRP LeaveAll Timer. The range is 200 to
6000 centiseconds, and the default value is 2000.
ClassA/ClassB Boundary Port fields are not configurable and show whether the interface
is a boundary port.
3. Click Cancel to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
4. If you make any changes to the page, click Apply to apply the change to the system.
MMRP Statistics
The MMRP Statistics page displays information regarding the MMRP frames transmitted and
received by the switch and by each interface. To access the MMRP Statistics page click the
Switching tab, then click MRP >Advanced > MMRP Statistics.
The following table describes the fields on the MMRP Statistics page.

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GS716T and GS724T Gigabit Smart Switches
To reload the page, click Refresh. To clear the statistics for one or more ports, select the check
box next to the interface or interfaces, and click Clear. To clear the statistics for all interfaces,
select the check box in the heading row, and click Clear Counters.
MSRP Statistics
The MSRP Statistics page displays information about the MSRP frames transmitted and
received by the switch and by each interface. To access the MSRP Statistics page click the
Switching tab, then click MRP >Advanced > MSRP Statistics.
Table 1-1.
Field Description
Global MMRP Statistics
Frames Received Shows the number of MMRP frames which were received on the switch.
Bad Header Shows number of MMRP frames with bad headers which were received
on the switch.
Bad Format Shows number of MMRP frames with bad PDUs body formats which
were received on the switch.
Frames Transmitted Shows number of MMRP frames which were transmitted on the switch.
Transmission Failures Shows number of MMRP frames that the switch failed to transmit.
Per-Interface MMRP Statistics
Interface Identifies the interface associated with the rest of the MMRP statistics in
the row.
Frames Received Shows number of MMRP frames which were received on particular
interface.
Bad Header Shows number of MMRP frames with bad headers which were received
on the particular interface.
Bad Format Shows number of MMRP frames with bad PDUs body formats which
were received on the particular interface.
Frames Transmitted Shows number of MMRP frames which were transmitted on the
interface.
Transmission Failures Shows number of MMRP frames transmitting of which were failed on
particular interface.

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GS716T and GS724T Gigabit Smart Switches
The following table describes the fields on the MSRP Statistics page.
Table 1-2.
Field Description
Global MSRP Statistics
Message Queue Add
Failures
Shows the number of messages that failed to be added to the
queue.
Frames Received Shows number of MSRP frames that have been received on the
switch.
Bad Header Shows number of MSRP frames with bad headers that have been
received on the switch.
Bad Format Shows number of MSRP frames with bad PDUs body formats that
have been received on the switch.
Frames Transmitted Shows number of MSRP frames which that have been
transmitted on the switch.
Transmission Failures Shows number of MSRP frames the switch failed to transmit.
Per-Interface MSRP Statistics
Interface Identifies the interface associated with the rest of the MSRP statistics in
the row.
Frames Received Displays the number of MSRP frames which were received the
interface.