DescriptionWhat is loss and retry percentage?
ScopeKB
ARTICLE TYPE:
Design
RELATED
PRODUCTS:
N/A
RELATED
SOFTWARE VERSIONS:
N/A
KEYWORDS:
Loss,
Retry
SolutionWhen a packet is sent to a device,
the sender expects an ack for that packet, to be considered a successful
transmission/exchange.If
the sender does not receive an ack for the original packet, the sender
will resend the packet up to three times, namely, retry# 1, retry#2 and
retry#3.
If the sender does
not receive an ack after the third retry attempt, it is counted as Loss.
So loss counter +1. Hence, loss counter/total packets sent *100 will be
your loss percentage.
If,
the sender receives an ack on, say, retry#2, the loss counter is not
incremented; Retry counter is incremented, or in this case, the retry
percentage on that packet would be 1/3*100=33%. Since one retry was made
without an acknowledgement, and on the
2nd retry, an ack
was received, making it a valid
exchange.
