Re: IPsec & Markers

On Oct 8, 2004, at 5:10 PM, Michael C. Cambria wrote:

>
> In MPA, is there any reason why, just like what is allowed with CRC, 
> one
> cannot have a system administrator knob to disable the use of markers
> when IPsec is being used?
>
> In fact, when I know I'm using IPsec, I rather not have to go through 
> the
> overhead of markers even when the remote peer sets the M bit in the
> Request/Reply frame.
>
> Regards,
> MikeC
>
>
The Markers are to enable the receiving side to locate the start of
MPA Frames even when TCP Segments are received out-of-order.
Even with IPSEC enabled a received out-of-order TCP Segment
is not necessarily an MPA Frame.  Without markers how would the
receiver locate the MPA Frame boundary?