Atop Technology EH7510 User manual - Manual (Page 44)

Atop Industrial Managed Ethernet Switch
EH7510
User Manual V 1.0
38
Table 2.21
Label Description Factory Default
GMRP
Enables or disables GMRP protocol.
To enable GMRP, the switch must be in 802.1q VLAN mode
and IGMP snooping must be disabled.
Disabled
Port Choose the ports to be GMRP enabled. Disabled
Clear
Statistics
Clear all GMRP statistics counts -
2.8 IGMP/IP Multicast
This function contains four options (Fig. 2.34.a), which are:
 IGMP/IP Multicast Table
 Static IP Multicast
 IGMP
 IGMP Statistics.
IGMP: Internet Group Management Protocol is used on IP networks to establish multicast
group memberships. It operates above the network layer of OSI. One of the most important
features related to this protocol is IGMP snooping, which is supported by EH7510 and
greatly strengthens network functionality.
IGMP Snooping: It is the process of “listening” to IGMP network traffic. By listening to
conversations between different devices, it maintains a map of which links need which IP
multicast streams. This means multicasts may be filtered from the links which do not need
them, and IGMP snooping allows a switch to only forward multicast traffic to the links that
have requested it.
2.8.1 IGMP/IP Multicast Table
Fig. 2.34.a