RE: [RPRWG] CRC check in each node?
With regard to withdrawing bad packets from the ring. Will it not make
sense to effect wrapping of the data on the previous node if the no of crc
errors
exceeds a threshold value?
>-----Original Message-----
>From: owner-stds-802-17@xxxxxxxxxxxxxxxxxx
>[mailto:owner-stds-802-17@xxxxxxxxxxxxxxxxxx]On Behalf Of Denton Gentry
>Sent: Friday, June 22, 2001 8:27 AM
>To: stds-802-17@xxxxxxxx
>Subject: Re: [RPRWG] CRC check in each node?
>
>
>
> I'd prefer the TTL not be included in the same CRC used over the
>user data. If a packet traverses N nodes on the ring, there would
>be N places where failing hardware could result in undetected data
>corruption of the user's data.
> If the CRC is left intact all the way across the ring, there are only
>two places where the packet could be corrupted undetected (the source
>and the destination).
>
> As for whether to strip bad packets at each node: never optimize
>for errors. I don't think increased efficiency in handling bad
>packets is worth added complexity in the MAC.