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Archived from groups: comp.dcom.lans.ethernet (More info?)
Hi there,
The company I work for is registered at IEEE for an OUI that we use in
our ethernet connected embedded devices.
We are currently running the TCP/IP protocol(s), but we would now like
to implement a 'proprietary' protocol that we could use for
upgrading/managing the firmware in these devices.
My question is, could we use our OUI in some way to 'define' the
protocol without violating any "Ethernet standards".
(1) Can I use a 802.3 SNAP frame....
+----------+---------+----------+-----------+----------+
|802.3 MAC |802.2 LLC|802.2 SNAP|Data | CRC |
|Header |Header |Header |(38 to | Checksum |
|(14 bytes)|(3 bytes)|(5 bytes) |1492 bytes)| (4 bytes)|
+----------+---------+----------+-----------+----------+
....and in the 802.2 SNAP header ...
+---------------------+---------+
|OUI (Organizationally|Type |
|Unique Id) |(2 bytes)|
|(3 bytes) | |
+---------------------+---------+
.....use the OUI of my company to define a set of 65536 types of
protocols??
(2) Use of "ethertype" 888D.
When looking at the list of registered 'ethertypes'
(http://standards.ieee.org/regauth/ethertype/eth.txt), I saw type 888D.
Can this one could be used??
Any comments?
Regards
/Yxan
Hi there,
The company I work for is registered at IEEE for an OUI that we use in
our ethernet connected embedded devices.
We are currently running the TCP/IP protocol(s), but we would now like
to implement a 'proprietary' protocol that we could use for
upgrading/managing the firmware in these devices.
My question is, could we use our OUI in some way to 'define' the
protocol without violating any "Ethernet standards".
(1) Can I use a 802.3 SNAP frame....
+----------+---------+----------+-----------+----------+
|802.3 MAC |802.2 LLC|802.2 SNAP|Data | CRC |
|Header |Header |Header |(38 to | Checksum |
|(14 bytes)|(3 bytes)|(5 bytes) |1492 bytes)| (4 bytes)|
+----------+---------+----------+-----------+----------+
....and in the 802.2 SNAP header ...
+---------------------+---------+
|OUI (Organizationally|Type |
|Unique Id) |(2 bytes)|
|(3 bytes) | |
+---------------------+---------+
.....use the OUI of my company to define a set of 65536 types of
protocols??
(2) Use of "ethertype" 888D.
When looking at the list of registered 'ethertypes'
(http://standards.ieee.org/regauth/ethertype/eth.txt), I saw type 888D.
Can this one could be used??
Any comments?
Regards
/Yxan