On Friday, February 22, 2002, at 09:51 ,
fm-listproc(_at_)ns(_dot_)fmmo(_dot_)ca wrote:
I am trying to convince myself that the IEEE 802.3ah working group
working on FTTH should not consider a proposal to increase the MTU
size of Ethernet beyond 1500 bytes. There is a strong likelyhood
that 802.3ah may require a redesign of SerDes chipsets, so why not
view this as an opportunity to recommend a physical layer design for
FTTH which is optimized for the likely use of IPv6.
Actually, nearly all GigE vendors (both switch vendors and many
common NIC chipsets) were long since herded into supporting a
9180 byte MTU for IP/GigE, despite the conflict with existing
IEEE standards. 9810 byte MTU is the de facto convention
for Ethernet jumbo frames, though it violates IEEE standards
to support more than 1500 bytes (and larger won't work over
CSMA/CD links anyway).
I doubt that many chipsets would require redesign.
Ran
rja(_at_)extremenetworks(_dot_)com