Linksys Etherfast EF1704 User Manual page 51

• V1 Timer - The time remaining until the Switch assumes that there
are no longer any IGMP Version 1 members on the IP subnet
attached to this interface. (The default is 400 seconds.) If the
Switch receives an IGMP Version 1 Membership Report, it sets a
timer to note that there are Version 1 hosts present which are mem-
bers of the group for which it heard the report. If there are Version
1 hosts present for a particular group, the Switch will ignore any
Leave Group messages that it receives for that group.
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.
Multicast Forwarding Cache
The Multicast Forwarding Cache, on the screen shown in Figure 6-85,
displays the settings for the cache.
• Group Address - An IP multicast group address with subscribers
directly attached or downstream from this Switch.
• Source Address - The IP subnetwork at the root of the multicast
delivery tree. This subnetwork contains a known multicast source.
• Mask - Subnet mask that is used for the source address. This mask
identifies the host address bits used for routing to specific subnets.
• Upstream Nbr - The IP address of the network device immediately
upstream for this group.
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Instant EtherFast
Figure 6-85
Series EtherFast Layer 3 Management 4-Port Gigabit Ethernet Switch
® ®
• Protocol - The multicast routing protocol associated with this
entry.
• Up Time - The time elapsed since this entry was created.
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.
DVMRP Routing Table
The DVMRP Routing Table, shown in Figure 6-86, shows the routes
for the Distance-Vector Multicast Routing Protocol.
• Source Address - The IP subnetwork at the root of the multicast
delivery tree. This subnetwork contains a known multicast source.
• Mask - Subnet mask that is used for the source address. This mask
identifies the host address bits used for routing to specific subnets.
• Upstream Nbr - The IP address of the network device immediately
upstream for this multicast delivery tree.
• Interface - The IP interface on this Switch that connects to the
upstream neighbor.
• Metric - The metric for this interface used to calculate distance
vectors.
Figure 6-86
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