North American Network Operators Group|
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Re: Transit LAN vs. Individual LANs
An argument could be made for individual VLANs to keep things like b- cast storms isolated. But I think the additional complexity will cause more problems than it will solve.
One must keep in mind that human error is the dominant cause of outages, and since there's not likely to be backhoes running around in a data center, IMHO the goal should be to remove as many ways as possible that your coworkers can muck things up.Individual PTP links means a muckup probably affects only two devices. Switched LANs means a muckup possibly affects all devices (on one of the LANs), and not all of them may detect the problem at the same time.