NEC Electra Elite IPK II System User Manual page 652

Document Revision 4C
IAD Trunk (one IAD at a site)
Optional Device Configurations
Network Equipment
IPK HUB ETU/HUB
SNMP switch (Bridge MIB and Mirroring)
SNMP switch (Bridge MIB – No
Mirroring)
Non-SNMP enabled switch (Mirroring)
Non-SNMP enabled switch (No
Mirroring)
Router and dumb HUB
The IVM should always be optimally positioned where it can monitor a majority of the telephone traffic.

Active tests can be performed only between switches that are configured to be managed by an IVM

appliance. When the Discovery process is unsuccessful, only schedule-triggered Active Tests can be
performed between these switches.
A work-around solution for a switch that does not support mirroring is to add a 4-port dumb HUB

without switching that connects the IAD trunk, the IVM ports, and the upstream port to the router or the
switch. HUBs should not be used to connect more than one VoIP device. When other devices are
included voice degradation results.
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Features Summary (Any Site)
Perform
Monitor
Active
IVM Trunk
Tests
YS YS YS
YS YS YS
YS NO YS
YS YS YS
YS NO YS
YS YS YS
IPK II VoIP Management System
Electra Elite IPK II
Notification
YS
YS
NO
YS
NO
YS