Linksys Etherfast EF1704 User Manual page 50

IP Multicast Registration Table
The IP Multicast Registration Table, shown in Figure 6-83, displays all the mul-
ticast groups active on the Switch, including the multicast IP address and the
corresponding VLANs.
• VLAN - A VLAN with host members that have asked to receive the indicat-
ed multicast service.
• Multicast IP - A source IP address that represents a specific multicast serv-
ice.
• (Multicast Group Port Lists) - The ports that belong to the indicated VLAN
group. Read the numbers vertically; they range from 1-8. For each port num-
ber, there are two choices:
If the letter "M" is present, it indicates that the VLAN has access to
messages transmitted by that particular port.
If there is no letter "M," then there is no access to messages trans
mitted by that particular port.
• Learned by - Shows if this entry was learned dynamically or via IGMP
Snooping. An entry is learned dynamically if a multicast packet was seen
crossing the port, or via IGMP Snooping if an IGMP registration packet was
seen crossing the port.
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Instant EtherFast
Figure 6-83
Series EtherFast Layer 3 Management 4-Port Gigabit Ethernet Switch
® ®
Select Apply to make changes. Select OK to return to the previous panel.
Select Prev Page to view the previous page. Select Next Page to view the next
page. To display a specific page, set the page number in the Page field and then
press Apply.
IGMP Cache
The IGMP Cache screen, shown in Figure 6-84, shows the setting
for the IGMP cache.
• Group Address - An IP multicast group address with subscribers
directly attached or downstream from this Switch.
• Intf - The IP interface on this Switch that has received traffic
directed to the IP multicast group address.
• Reporter - IP address of the source of the last membership report
received for this multicast group on this interface. If no member-
ship report has been received, this object has the value 0.0.0.0.
• Up Time - The time elapsed since this entry was created.
• Expire - The time remaining before this entry will be aged out.
(The default is 260 seconds.)
Figure 6-84
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