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Subnet Mask Selection for ATM Backbone

john-guy
Level 1
Level 1

‎03-03-2002 02:26 PM - edited ‎03-01-2019 08:43 PM

Is there a disadvantage of assigning a 30 bit mask to an ATM interface which is part of a ATM backbone using Multipoint? With a hub and spoke design serial links are commonly assigned 30 bit masks to conserve IP addesses and reduce routing table. Is true in designing an ATM backbone too?

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bsivasub
Level 4
Level 4

‎03-03-2002 07:47 PM

why not !!! It should be fine... Not aware of any atm specific issues... just treat that like any other wan connection.

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svermill
Level 4
Level 4

‎03-04-2002 08:02 AM

I would base the mask on the number of end points on that multipoint. A /30 mask allows for only two. You may very well need more I would think.

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