NETWORKSUPERVISION
For wireless, there are “rogue” detection features built in to scan
detect and locate unauthorized WLAN devices. EtherScope does not
rely on simply MAC and IP addressing. If an unknown device is found,
EtherScope will report a great deal of information about its congura-
tion, including: SNMP host name, NetBIOS name, Ethernet interface
manufacturer, what services are running, and so on. You may also use
the EtherScope SNMP tests to discover which switch port the unknown
device is connected to, and simply go look at it.
Q: How do I make sure my network changes are successful?
A: Identify the devices consuming the most bandwidth with the Ether-
Scope “Top Talkers” feature. This allows you to see how much bandwidth
each device on your network is using in a real-time setting. Also,
confirm the connections are as you planned by tracing the link between
two IP addresses by switch and port.
Q: How do I know whether my connectors and ports are live?
A: A key part of resolving connectivity issues is nding which port a
user is connected to. LinkRunner Pro is the first connectivity tool to
support the new IEEE Link Layer Discovery Protocol (LLDP) in addi-
tion to the Cisco and Extreme Discovery Protocols (CDP and EDP). This
feature allows technicians to speed problem resolution by quickly and
precisely locating the nearest switch port. In just seconds, LinkRunner
Pro will display the make, model, address, slot, and port of the nearest
LLDP device. The new LLDP standard has been adopted by Cisco, Avaya,
Extreme, Nortel, Mitel, and many others.
CommonElectricalSignalingIssues
Q: I hate analyzing and interpreting complicated waveforms. Is there
an easier way to check the integrity of network signals?
A: Yes, the Bus Health test on a ScopeMeter Test Tool measures critical
parameters, showing a go/no go result compared to industry standards.
Q: How do I capture waveform disturbances and anomalies ?
A: Use an eye pattern, waveform analysis, to easily identify problems.
Q: Many network types use two-wire differential signaling, making it
difficult to test without bringing the segment down. Is there an easy
solution?
A: If connected incorrectly, a scope with common grounded inputs will
short differential network signals to earth ground. A portable oating
oscilloscope (215C or 225C) with isolated inputs (reference inputs)
makes it safe and easy to test two wire differential network signals.
Q: It’s difficult to remember how to connect the probes correctly to
the different network types.
A: The 215C or 225C with Bus Health test includes a help screen that
illustrate the probe connection points.
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