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FL SWITCH MM HS
6-2
PHOENIX CONTACT 6874_en_09
For network modifications, during servicing or expansion, the multicast data paths
must be restored.
6.3.1 "Current Multicast Groups" Web Page
The table on this web page provides an overview of the current multicast groups created
on this MMS. These include multicast groups that are assigned as a result of IGMP
snooping or groups that are statically created.
Figure 6-1 "Current Multicast Groups" web page
These checkboxes indicate which port has been assigned to each individual group.
The overview for group membership is based on the "dot1qTpGroupTable" SNMP group.
This table contains all groups (static entries and IGMP) and their members.
6.3.2 Creating Static Multicast Groups
This web page is used to create and manage statically configured multicast groups. In
order to create a multicast group, enter the MAC address provided (see "Multicast
Addresses" on page 6-4) for the multicast group in the "Multicast Group Address" field, add
the ports of the data paths to the group members, and confirm these entries by entering a
valid password. If a group address is entered as an IP address, the IP address is converted
into a multicast MAC address according to the specifications of IEEE 802.1 D/p.
Overwriting a dynamic group with a static configuration means that a new port assignment
for this group cannot be created dynamically. Only deleting this group will enable port
assignment for this group to be started dynamically.
Conversion The guidelines for converting multicast IP addresses into a multicast MAC address results
in the mapping of different IP groups to the same MAC group. Avoid the use of IP groups:
That do not differ in the first and second byte from the right
That differ by 128 in the third byte from the right
The fourth byte from the right is always replaced by 01:00:5e during conversion. See
example below:
Please note that all multicast groups that are known to the switch, including the
dynamically detected groups that have not been created manually, are shown on this
web page.
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