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Netgear GS724AT GS724AT Reference Manual - Page 120

Basic, IGMP Snooping Configuration

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GS700AT Series Smart Switch Software Administration Manual Layer 2 switching forwards Multicast packets to all relevant VLAN ports by default, treating the packet as a Multicast transmission. Multicast traffic forwarding is functional. However, irrelevant ports also receive the Multicast, causing increased network traffic. Multicast forwarding filters enable forwarding of Layer 2 packets to port subsets, defined in the Multicast filter database. The device supports forwarding L2 Multicast Packets. Multicast forwarding is enabled by default, and not configurable by user. The Multicast menu contains the following options: • "Basic" • "Advanced" Basic The Multicast Basic menu contains the following options: • "IGMP Snooping Configuration" IGMP Snooping Configuration When IGMP snooping is enabled, all IGMP packets are forwarded to the CPU. The CPU analyzes the incoming packets and determines which ports want to join which Multicast groups, which ports have Multicast routers generating IGMP queries, and what routing protocols are forwarding packets and Multicast traffic. A port requesting to join a specific Multicast group issues an IGMP report specifying that Multicast group. This results in the creation of the Multicast filtering database. Configuring Switching Settings v1.0, March 2008 4-39

Section	Page
GS700AT Series Smart Switch Software Administration Manual	1
Contents	5
About This Manual	9
Who Should Use this Book	9
How to Use This Book	9
Conventions, Formats, and Scope	10
How to Use This Manual	11
How to Print this Manual	12
Revision History	12
Chapter 1 Getting Started with Switch Management	14
System Requirements	14
Switch Management Interface	15
Network with a DHCP Server	16
Network without a DHCP Server	18
Manually Assigning Network Parameters	18
NIC Setting on the Host that Accesses the GS700AT Gigabit Smart Switch	20
Web Access	21
Additional Utilities	22
Password Change	22
Firmware Upgrade	22
Exit	23
Chapter 2 Introduction to the Web Browser Interface	24
Logging Into the NETGEAR Home Screen	24
The Navigation Menu	25
Using the NETGEAR Web Management System Options	26
Device Management Buttons	26
Informational Services	27
Help Navigation Tab	27
Accessing Device Information	27
Using Screen and Table Options	28
Selecting an Entry	29
Adding an Entry	29
Modifying an Entry	30
Deleting an Entry	31
Special Table Options	31
Gold Buttons	31
Quick Boxes	31
Interface View and Selection	33
Chapter 3 Managing System Settings	36
Using the System Settings Utility	36
Management	36
System Information	36
IP Configuration	38
Time	39
Time Configuration	40
SNTP Server Configuration	41
Device View	42
SNMP	42
SNMPv1/v2	43
Community Configuration	43
Trap Configuration	45
SNMPv3	46
Engine ID	47
View Name	48
View Content	49
Community Configuration	50
Group Configuration	52
User Configuration	54
Global Trap Configuration	56
Trap Configuration	57
Trap Filter Name	59
Trap Filter Content	60
LLDP	62
Basic	62
LLDP Configuration	62
Advanced	64
LLDP Configuration	64
LLDP Port Settings	66
LLDP-MED Network Policy	68
LLDP-MED Port Settings	71
Local Information	72
Neighbors Information	75
Chapter 4 Configuring Switching Settings	82
Configuring Switching Settings	82
Ports	82
Port Configuration	82
LAG	85
Basic	86
LAG Configuration	86
LAG Membership	88
Advanced	89
LAG Configuration	89
LAG Membership	92
LACP Configuration	93
LACP Port Configuration	94
VLAN	95
Basic	95
VLAN Configuration	96
Advanced	97
VLAN Configuration	97
VLAN Membership	98
Port PVID Configuration	101
Voice VLAN	103
Basic	103
Properties	103
Advanced	105
Properties	105
Port Setting	106
OUI	108
STP	109
Basic	110
STP Configuration	110
Advanced	112
STP Configuration	112
CST Configuration	114
CST Port Configuration	115
Rapid STP	117
Multicast	119
Basic	120
IGMP Snooping Configuration	120
Advanced	122
IGMP Snooping Configuration	122
Multicast Group Configuration	124
Multicast Group Membership	125
Multicast Forward All	126
Address Table	128
Basic	128
Address Table	128
Advanced	130
Static Addresses	130
Dynamic Addresses	131
Address Table	132
Chapter 5 Configuring QoS	134
Configuring the Basic and Advanced QoS Settings	134
CoS	134
Basic	135
CoS Global Configuration	135
CoS Interface Configuration	136
Queue	138
Bandwidth	138
Advanced	140
CoS to Queue Mapping	140
DSCP to Queue Mapping	142
Chapter 6 Managing Security	144
Setting Security Configuration Options	144
Management Security	144
User Configuration	144
Change Password	145
RADIUS	145
Authentication Server Configuration	146
Accounting Server Configuration	148
TACACS+	149
Authentication List	151
Port Authentication	152
Basic	152
802.1X Configuration	152
Advanced	154
802.1X Configuration	154
Port Authentication	155
Traffic Control	158
Storm Control	158
Port Security	160
ACL	162
MAC ACL	163
MAC Rules	164
MAC Binding Configuration	166
IP ACL	167
IP Rules	168
IP Binding Configuration	170
Binding Table	171
Chapter 7 Monitoring the Switch	172
Setting Monitoring Options	172
Logs	172
Logs Configuration	173
Log Filter	174
Memory Log	175
Flash Log	177
Server Log	178
RMON	180
Basic	180
Statistics	180
Advanced	182
Statistics	182
History Control	185
History Table	187
Events Control	189
Events Log	190
Alarms	191
Port Mirroring	193
Port Mirroring	194
Chapter 8 Maintenance	196
Using the Maintenance Options	196
Reset	196
Device Reboot	196
Factory Default	197
Upload	198
Upload	198
Download	199
Download	199
File Management	200
Active Image	200
Troubleshooting	201
Diagnostics	201
Cable Test	202
Chapter 9 Online Help	204
Online Help	204
Support	204
User Guide	205
Appendix A Default Settings	206

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GS700AT Series Smart Switch Software Administration Manual

Configuring Switching Settings

4-39

v1.0, March 2008

Layer 2 switching forwards Multicast packets to all relevant VLAN ports by default, treating the

packet as a Multicast transmission. Multicast traffic forwarding is functional. However, irrelevant

ports also receive the Multicast, causing increased network traffic. Multicast forwarding filters

enable forwarding of Layer 2 packets to port subsets, defined in the Multicast filter database.

The device supports forwarding L2 Multicast Packets. Multicast forwarding is enabled by default,

and not configurable by user.

The

Multicast

menu contains the following options:

•

“Basic”

•

“Advanced”

Basic

The Multicast

Basic

menu contains the following options:

•

“IGMP Snooping Configuration”

IGMP Snooping Configuration

When IGMP snooping is enabled, all IGMP packets are forwarded to the CPU. The CPU analyzes

the incoming packets and determines which ports want to join which Multicast groups, which

ports have Multicast routers generating IGMP queries, and what routing protocols are forwarding

packets and Multicast traffic. A port requesting to join a specific Multicast group issues an IGMP

report specifying that Multicast group. This results in the creation of the Multicast filtering

database.