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a:af [2018/08/10 18:16] (current)
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 +# Assured Forwarding
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 +Assured Forwarding (AF) is a mechanism for assurance of delivery, given a defined rate.
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 +In case of congestion, traffic that exceeds the rate have a higher probability of being dropped.
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 +The four AF classes have the same priority. For each class, packets are given a drop probability.
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 +^ Drop probability ^ Class 1 ^ Class 2 ^ Class 3 ^ Class 4 ^
 +| Low | AF11 | AF21 | AF31 | AF41 |
 +| Medium | AF12 | AF22 | AF32 | AF42 |
 +| High | AF13 | AF23 | AF33 | AF43 |