help3002

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help3002

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UWA week 18 (1st semester, week 9) ↓

project Unreliable UDP (all 6)

6:46am Sun 5th May, Christopher M.

"Cameron Locke" <21*3*2*2@s*u*e*t*u*a*e*u*a*> wrote:

> By addressing the unreliability, does that mean we also have to error-check? I'm not sure if " If a datagram arrives, it will be uncorrupted. " is a statement of fact, or a requirement for us to ensure.

It is a fact, and 'built-in' feature of UDP, that "If a datagram arrives, it will be uncorrupted" - that statement is not a requirement (to add/support) for the project. I strongly suggest that you read from a textbook or the Beej tutorial to get a background understanding of UDP. There's even an online Linux manual entry for it: "This is an implementation of the User Datagram Protocol described in RFC 768. It implements a connectionless, unre- liable datagram packet service. Packets may be reordered or duplicated before they arrive. UDP generates and checks checksums to catch transmission errors."