D-Link DES-3326 User Manual - page 351
DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
Web-Based Network Management
337
Parameter
Description
Sequence
A counter incremented whenever an entry
to the switch’s history log is made. The
table displays the last entry (highest
sequence number) first.
Time
Displays the time in days, hours, and
minutes since the switch was last restarted
the history log entry was made.
Log Text
Displays text describing the event that
triggered the history log entry.
Browse the Router Port Table
A static router port is simply a port that has a router attached to it.
Generally, this router would have a connection to a WAN or to the
Internet. Establishing a router port allows multicast packets
coming from the router to be propagated throughout the network,
as well as allowing multicast messages coming from the network to
be propagated to the attached router.
The purpose of a router port is to enable UDP multicast packets,
and IGMP multicast group membership messages to reach a
multicast router. Routers do not implement IGMP snooping or
transmit/forward IGMP report packets. Thus, forwarding all IP
UDP multicast packets to a static router port guarantees that all
multicast routers – attached to the switch – can reach all multicast
group members.
The switch monitors each port for UDP multicast packets and
IGMP multicast group membership reports. When these packets
are detected on a port, that port is dynamically assigned as router
port.