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Re: sequence number wrap



--On torsdag, april 24, 2003 13:21:21 -0400 Thomas Narten <narten@us.ibm.com> wrote:

In two separate documents I've looked at this week, I've seen protocol
support for detecting out-of-sequence packets that uses a rather small
sequence number space.

draft-ietf-pwe3-ethernet-encap-02.txt uses a 16-bit field (this is to
ensure that Ethernet frames don't get reordered across IP or MPLS).

16 bits, 40 bytes: 20 Mbits. 2 msec @10G.


draft-ietf-l2tpext-l2tp-base-07.txt uses 24 bits. (this is for when
carrying packets other than PPP over l2tp).

24 bits, 40 bytes: 5 Gbits. 0.5 sec @10G.

Am I the only person who worries that these values are way too small
given today and tomorrow's networking speeds?

No.