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For example if the animus is pinging a rudder to see if it's up or down and a response doesn't come

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back the inner mess doesn't really know whether that device is down.

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All it knows is that the response didn't come back.

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The device could be down but there could also be a routing problem or an intermediate device could be

5
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done or a device between the enemies and the rudder could be done.

6
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So some device along the path could be down or traffic could be blocked by an ACL or a firewall rule.

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All the animus knows is that it can't reach the device that it's pinging.

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It's an AP On the other hand is different with S&P.

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The animus is querying a device and the device is telling the enemies via S&P the state of an interface.

10
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So if a device indicates that interface Fost Ethan at 0 0 as an example is down the enemy's nose 100

11
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percent that that information is accurate because it received that information via an MP from the device

12
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that it was querying.

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Now in the event that the actual device is down rather than an interface on the device you'll get an

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unknown state.

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That's a different type of signifier than if the interface is down on a device that's up and running

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in terms of performance monitoring ICMP or ping is used for availability calculations and latency response

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time as S&P is used for almost all the other statistics including you memory buffers interface traffic

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and errors and many many other statistics.

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In some cases for Windows systems the enemies might leverage w where my or Windows management instrumentation

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to check for performance Karner type of values.