Netgear GS724Tv4 Software Administration Manual - Page 108

Multicast, MFDB Table

Page 108 highlights

GS716Tv3, GS724Tv4, and GS748Tv5 Smart Switches Multicast Multicast IP traffic is traffic that is destined to a host group. Host groups for IPv4 multicast are identified by class D addresses, which range from 224.0.0.0 to 239.255.255.255. Host groups for IPv6 multicast are identified by the prefix ff00::/8. From the Multicast link, you can access the following screens: • MFDB Table • MFDB Statistics • Auto-Video • IGMP Snooping • IGMP Snooping Querier • MLD Snooping MFDB Table The Multicast Forwarding Database (MFDB) holds the port membership information for all active multicast address entries. The key for an entry consists of a VLAN ID and MAC address pair. Entries can contain data for more than one protocol.  To search the MFDB table: 1. Select Switching > Multicast > MFDB > MFDB Table. 2. Next to Search By MAC Address, specify the MAC Address whose MFDB table entry you want to view. Enter six two-digit hexadecimal numbers separated by colons, for example 00:01:23:43:45:67. 3. Click the Go button. If the address exists, that entry will be displayed. An exact match is required. The MFDB Table screen displays the information shown in the following table. Table 30. MFDB table information Field MAC Address VLAN ID Component Type Description The multicast MAC address for which you requested data. The VLAN ID to which the multicast MAC address is related. This is the component that is responsible for this entry in the Multicast Forwarding Database. Possible values are IGMP Snooping, GMRP, Static Filtering and MLD Snooping. This displays the type of the entry. Static entries are those that are configured by the end user. Dynamic entries are added to the table as a result of a learning process or protocol. Configuring Switching 108

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Configuring Switching
108
GS716Tv3, GS724Tv4, and GS748Tv5 Smart Switches
Multicast
Multicast IP traffic is traffic that is destined to a host group. Host groups for IPv4 multicast are
identified by class D addresses, which range from 224.0.0.0 to 239.255.255.255. Host groups
for IPv6 multicast are identified by the prefix ff00::/8.
From the Multicast link, you can access the following screens:
MFDB Table
MFDB Statistics
Auto-Video
IGMP Snooping
IGMP Snooping Querier
MLD Snooping
MFDB Table
The Multicast Forwarding Database (MFDB) holds the port membership information for all
active multicast address entries. The key for an entry consists of a VLAN ID and MAC
address pair. Entries can contain data for more than one protocol.
To search the MFDB table:
1.
Select
Switching
>
Multicast
>
MFDB
>
MFDB Table
.
2.
Next to Search By MAC Address, specify the MAC Address whose MFDB table entry you
want to view.
Enter six two-digit hexadecimal numbers separated by colons, for example
00:01:23:43:45:67.
3.
Click the
Go
button.
If the address exists, that entry will be displayed. An exact match is required.
The MFDB Table screen displays the information shown in the following table.
Table 30.
MFDB table information
Field
Description
MAC Address
The multicast MAC address for which you requested data.
VLAN ID
The VLAN ID to which the multicast MAC address is related.
Component
This is the component that is responsible for this entry in the Multicast
Forwarding Database. Possible values are IGMP Snooping, GMRP,
Static Filtering and MLD Snooping.
Type
This displays the type of the entry. Static entries are those that are
configured by the end user. Dynamic entries are added to the table as a
result of a learning process or protocol.