Korenix JetNet 4000, User Manual

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Web-based Management
Korenix JetNet Series Industrial Web-Managed Ethernet Rail Switch User’s Manual 3-23
COS Priority: this is to map the COS priority (level 0~7) to port priority(4 levels).
TOS Priority: this is to map the TOS priority (level 0~63) to port priority(4 levels).
IGMP
The IGMP (Internet Group Management Protocol) is an internal protocol of the Internet Protocol
(IP) suite. IP manages multicast traffic by using switches, routers, and hosts that support IGMP.
Enabling IGMP allows the ports to detect IGMP queries, report packets, and manage multicast
traffic through the JetNet. IGMP has three fundamental types of messages, as shown below:
Message Description
Query A message sent from the querier (a IGMP router or a switch) which asks for a
response from each host that belongs to the multicast group.
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.