User's Manual

IGMP Configuration
101
5
• 14 – Upstream TSSI breakpoints
• 15 – Average line attenuation
• 16 – Average signal attenuation
• 17 – Downstream DELT band information
• 18 – Upstream DELT band information
• 19 – Near end UPBO electrical loop length
• 20 – Far end UPBO electrical loop length
• 21 – Near end TX last tone index
• 22 – Far end TX last tone index
• 23 – Actual maximum DS PSD
• 24 – Actual maximum US PSD
• 25 – Per tone DS Tx PSK
• 26 – Per tone US Tx PSK
• Show Test Result – Displays the DELT test results.
• Download – Downloads the DELT test results to a local folder.
IGMP Configuration
This Gateway can use Internet Group Management Protocol (IGMP) to filter
multicast traffic.
IGMP Snooping can be used to passively monitor or “snoop” on exchanges between
attached hosts and an IGMP-enabled device, most commonly a multicast router. In
this way, the Gateway can discover the ports that want to join a multicast group, and
set its filters accordingly.
Using IGMP Proxy, the Gateway learns multicast requirements from its downstream
interfaces, proxies this group membership information to the upstream router, and
then forwards multicast packets based upon that information to downstream hosts.