Korenix JetNet 4500 Series, Руководство пользователя

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Korenix JetNet 4500 Series Industrial Managed Ethernet Rail Switch User’s Manual 3-28
identified themselves as being interested in receiving the originating computers data.
Multicasting is useful for such applications as updating the address books of mobile computer
users in the field, sending out newsletters to a distribution list, and broadcasting streaming media
to an audience that has tuned into the event by setting up multicast group membership.
In effect, IGMP manages multicast traffic by making use of switches, routers, and hosts that
support IGMP. Enabling IGMP allows the ports to detect IGMP queries, report packets, and
manage multicast traffic through the switch. IGMP has three fundamental types of messages, as
shown below:
Message Description
Query
A message sent from the querier (an IGMP router or a switch) which asks for
a response from each host that belongs to the multicast group.
Note: You can only configure 1 Query in your IGMP network, the system
doesn’t support multiple Query selection.
Report
A message sent by a host to the querier to indicate that the host wants to be
or is a member of a given group indicated in the report message.
Leave
Group
A message sent by a host to the querier to indicate that the host has quit as a
member of a specific multicast group.
You can enable
IGMP protocol
and
IGMP Query
functions here. You will see the information of
the IGMP Snooping function in this section, including different multicast groups’ VID and member
ports, and IP multicast addresses that range from 224.0.0.0 to 239.255.255.255.
Once you finish configuring the settings, click on
Apply
to apply your configuration.
Security Manager
You can change the user name and the password here for increased security
User name
: You can key in the new user name here. The default setting is
admin
.
Password
: You can key in the new password here. The default setting is
admin
.
Confirm Password
: You need to type the new password again to confirm it.
Once you finish configuring the settings, click on
Apply
to apply your configuration.
Configuration Backup
In Configuration Backup section, you can restore the backup configuration into the JetNet. You
also can backup the configuration to the TFTP server as well.