Which is the transport protocol and port number used in VMware’s implementation of VXLAN in NSX for vSphere?

Which is the transport protocol and port number used in VMware’s implementation of VXLAN in
NSX for vSphere?

Which is the transport protocol and port number used in VMware’s implementation of VXLAN in
NSX for vSphere?

A.
UDP, port number 8472

B.
UDP, port number 4789

C.
TCP, port number 4789

D.
TCP, port number 8472

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redtantra

redtantra

VMware uses UDP 8472, the VXLAN default port is UDP 4789

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kees

kees

B.
In April 2013, IANA reserved UDP port 4789 for VXLAN.

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spleez

spleez

A. They still use UDP 8472 even though the IANA reserved 4789.

From the NSX vSphere Design Guide v1.2
 
Up to the current release 6.1, NSX uses 8472 as Destination Port value for the external UDP header. This differs from the IANA assigned number for VXLAN that is 4789, as described at the link below:
 
http://tools.ietf.org/html/rfc7348#page-19
It is however possible to modify this value in an NSX deployment via a REST API call. However, before doing so and to avoid data-plane outages it is essential to ensure that all the ESXi hosts are running an NSX-v release (no backward compatibility with hosts running vCNS with vSphere 5.1) and that the configuration in the physical network (access-list, firewall policies, etc.), is properly updated. “

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cleverjack

cleverjack

A:
Up to the current release 6.1, NSX uses 8472 as Destination Port value for the external UDP header. This differs
from the IANA assigned number for VXLAN that is 4789, as described at the link below:

NSXvSphereDesignGuidev2.1.pdf

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