I've confirmed your observation. If you have a device as the reference point, and that device goes down, the adjacent networks are not shadowed. This should be coded as a special case, but it is not. I will fix this bug in 4.2.3.

If a device is a reference point, and it goes down, all downstream networks and links should be shadowed, but the device itself will remain un-shadowed (so it can send notifications).

Another work-around is to set a network as the reference point instead of the switch.

Thanks,

Bill Fisher
Dartware, LLC


On Oct 13, 2004, at 5:47 PM, Doug Weathers wrote:

Networks that are directly attached to the reference device do not get
shadowed.  (Is this a bug?)  Devices connected to these networks
therefore also don't get shadowed.  This means that you'll get alerts
from every device directly connected to your main switch, which is
probably a fairly long list :)  Shadowing works  from devices that are
NOT the reference device, so the devices further downstream get
correctly shadowed.

One workaround is to not use your main switch as the reference point.
Pick a device upstream from there to be your reference device. You
could actually put your IM server on the map, hide all of the networks
connected to it, mark it as the reference device, and drag a manual link
to the main switch by holding down the E key while you drag. IM just
follows the links on the map to determine shadowing, including the
manually created links, so this should work as desired.


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