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Chapter 22 Multicast
GS2200-48 User’s Guide
176
22.1.3 IGMP Snooping
The Switch can passively snoop on IGMP packets transferred between IP multicast
routers/switches and IP multicast hosts to learn the IP multicast group
membership. It checks IGMP packets passing through it, picks out the group
registration information, and configures multicasting accordingly. IGMP snooping
allows the Switch to learn multicast groups without you having to manually
configure them.
The Switch forwards multicast traffic destined for multicast groups (that it has
learned from IGMP snooping or that you have manually configured) to ports that
are members of that group. IGMP snooping generates no additional network
traffic, allowing you to significantly reduce multicast traffic passing through your
Switch.
22.1.4 IGMP Snooping and VLANs
The Switch can perform IGMP snooping on up to 16 VLANs. You can configure the
Switch to automatically learn multicast group membership of any VLANs. The
Switch then performs IGMP snooping on the first 16 VLANs that send IGMP
packets. This is referred to as auto mode. Alternatively, you can specify the VLANs
that IGMP snooping should be performed on. This is referred to as fixed mode. In
fixed mode the Switch does not learn multicast group membership of any VLANs
other than those explicitly added as an IGMP snooping VLAN.
22.2 Multicast Status
Click Advanced Applications > Multicast to display the screen as shown. This
screen shows the multicast group information. See
for
more information on multicasting.
Figure 77
Advanced Application > Multicast
The following table describes the labels in this screen.
Table 55
Multicast Status
LABEL
DESCRIPTION
Index
This is the index number of the entry.
VID
This field displays the multicast VLAN ID.
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Страница 8: ...Safety Warnings GS2200 48 User s Guide 8 ...
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Страница 28: ...Chapter 1 Getting to Know Your Switch GS2200 48 User s Guide 28 ...
Страница 32: ...Chapter 2 Hardware Installation and Connection GS2200 48 User s Guide 32 ...
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Страница 62: ...Chapter 6 System Status and Port Statistics GS2200 48 User s Guide 62 ...
Страница 76: ...Chapter 7 Basic Setting GS2200 48 User s Guide 76 ...
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Страница 102: ...Chapter 9 Static MAC Forward Setup GS2200 48 User s Guide 102 ...
Страница 122: ...Chapter 11 Spanning Tree Protocol GS2200 48 User s Guide 122 ...
Страница 126: ...Chapter 12 Bandwidth Control GS2200 48 User s Guide 126 ...
Страница 148: ...Chapter 17 Port Security GS2200 48 User s Guide 148 ...
Страница 156: ...Chapter 18 Classifier GS2200 48 User s Guide 156 ...
Страница 164: ...Chapter 19 Policy Rule GS2200 48 User s Guide 164 ...
Страница 214: ...Chapter 24 IP Source Guard GS2200 48 User s Guide 214 Figure 98 DHCP Snooping ...
Страница 235: ...235 PART IV IP Application Static Routing 237 RIP 239 Differentiated Services 241 DHCP 249 VRRP 259 ...
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Страница 278: ...Chapter 31 Maintenance GS2200 48 User s Guide 278 ...
Страница 304: ...Chapter 34 Syslog GS2200 48 User s Guide 304 ...
Страница 312: ...Chapter 35 Cluster Management GS2200 48 User s Guide 312 ...
Страница 316: ...Chapter 36 MAC Table GS2200 48 User s Guide 316 ...
Страница 320: ...Chapter 37 IP Table GS2200 48 User s Guide 320 ...
Страница 324: ...Chapter 39 Routing Table GS2200 48 User s Guide 324 ...
Страница 327: ...327 PART VI Product Specifications Product Specifications 329 ...
Страница 328: ...328 ...
Страница 336: ...Chapter 41 Product Specifications GS2200 48 User s Guide 336 ...
Страница 337: ...337 PART VII Appendices and Index IP Addresses and Subnetting 339 Legal Information 349 Index 353 ...
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Страница 352: ...Appendix B Legal Information GS2200 48 User s Guide 352 ...
Страница 362: ...Index GS2200 48 User s Guide 362 ...