Extron electronics NAV SD 511, User Manual

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NAV SD 511 Scaling Decoder • HTML Operation 47
3
IGMP Querier pane (see figure 41 on page 46) — See “IGMP Querier pane” below.
4
Memory Utilization — Indicates how much decoder memory is used, expressed in
percent.
5
AV LAN Utilization
— Indicates the total bandwidth usage at that moment. The
decoder generates an alarm if the utilization goes above 90%. The alarm clears
automatically once the level drops below 90%.
NOTE : The decoder normally uses far more Rx than Tx bandwidth.
6
Ethernet Extension Utilization pane
— See ”Ethernet Extension Utilization pane”,
below.
7
USB Devices pane — See USB Devices pane on page 48.
8
Primary Controller pane — See Primary Controller pane on page 48.
9
Alarms pane — See Alarms pane on page 49.
¢
Download Logs link
— See
Download Logs link
on page 50.
IGMP Querier pane
IGMP querier is a network service, usually running on a network switch, that can initiate
IGMP queries. An IGMP querier should be configured on the NAV network. It manages the
multicast traffic. If there is no IGMP querier on the network, there is no effective multicast
traffic management and the multicast traffic saturates the network and stream errors can
occur.
The
IGMP Querier
pane (see figure 41 ,
3
) shows whether or not an IGMP querying device
is present on the network, and the IP address of the IGMP querier. Figure 42 shows the
normal indication and if no IGMP querier is present on the network.
Figure 42. IGMP Querier Pane Indications
Ethernet Extension Utilization pane
The
Ethernet Extension Utilization
pane (see figure 41,
6
) indicates the total
bandwidth usage of the rear panel Extension port (see figure 2 ,
H
on page 6) at that
moment. The decoder generates an alarm if the utilization goes above 90%. The alarm
clears automatically once the level drops below 90%. Figure 43 shows the normal indication
and if the Extension port is either
disabled (see Network Connection on page 59) or
enabled with nothing connected to it.
Ethernet Extension Normal Indication Ethernet Extension Disabled or Not Connected
Figure 43. Ethernet Extension Utilization Pane Indications