Hello, I am developing a vendor extension that performs matching based on some
string metadata and the length requirement is up to 4096 bytes. However,
current specification of OpenFlow messages for experimenter fields allows only
8 bits for length:
type experimenter
<----------> <---------->
16 7 1 8 8 24 (length - 4) bytes
+------+-----+--+------+ +------+-----+ +------------------+
|class |field|HM|length| | zero | OUI | | body |
+------+-----+--+------+ +------+-----+ +------------------+
0xffff 0x00
I am asking for suggestions on how to extend this limit appropriately. I
thought of the following:
1. Use the reserved 'zero' bits (between 'length' and 'OUI').
2. Divide the string into multiple entries, specifying fragments' intervals in
the body.
Regards,
Denis Davidoglu
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