Hello,
Concern/Query : What is the need to have another Destination UDP port number ?
Reference : draft-ietf-nvo3-vxlan-gpe-00 (VXLAN - GPE)
This draft mentions that :
IANA has assigned the value 4790 for the VXLAN-GPE UDP port.
Further, this draft specifies:
P Bit: Flag bit 5 is defined as the Next Protocol bit. The P bit
MUST be set to 1 to indicate the presence of the 8 bit next
protocol field. When P=1, the destination UDP port MUST be 4790.
P = 0 indicates that the payload MUST conform to VXLAN as defined
in [RFC7348<https://tools.ietf.org/html/rfc7348>], including destination
UDP port - 4789
What is the need for having another IANA assigned UDP destination port number ?
I don't see any strong reasons on the need of another IANA assigned UDP
destination port number ?
I believe, the P Bit can take care of distinguishing between RFC 7348 VXLAN
packet from VXLAN-GPE packets.
Appreciate, any insight/ background on the requirement to define another new
UDP destination port number for future VXLAN packets ?
Thanks & regards
Sandeep Relan
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