IANA defined port 9339 for gNMI / gNOI is not used as default port

[raghubk]

Hello,

Currently if gnmic command isn't provided with port#, it uses ephemeral port# 57400 as default when connecting to gNMI server.

Is gnmic going to start using 9339 as default port number when connecting to gNMI server?

Regards,
Raghu

[karimra]

You can set the port together with the address or change the default port using the config file.
As far as changing the default port to 9339, I don't see how it will help in any way. Most vendors use their own default ports (none uses 9339)

[raghubk]

Thanks for your response.

Googling, I see few adoptions of this standard port# already.
google/gnxi#92 , Cisco

Using a standard port number for a service simplifies the usage, that is the only advantage.

[karimra]

I don't see any router using that port as default. I agree with that using defaults simplifies usage, that's if vendors start using it on the server side.

[raghubk]

Here are some references I found to default gNMI port 9339.

Nvidia/Cumulus Network: The gNMI agent listens over port 9339.
https://docs.nvidia.com/networking-ethernet-software/cumulus-netq-48/Manage-Events-and-Notifications/gNMI-Streaming/

Extreme Networks: By default, non TLS gNMI server runs on port 9339.
https://documentation.extremenetworks.com/slxos/sw/20xx/20.3.2/commands/GUID-6F6AAF0A-0699-44D0-B579-DF38963D6059.shtml

Cisco 8000 Series Routers and Cisco user docs reference to port 9339
https://www.cisco.com/c/en/us/td/docs/iosxr/cisco8000/system-management/b-system-management/m-manageability-commands.html#wp4022790341
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/168/b_168_programmability_cg/gNMI_protocol.pdf

ONF Stratum: Stratum no longer supports port 28000 for gRPC connections by default. You should use port 9339 (gNMI)
https://opennetworking.org/news-and-events/blog/community-highlights-april-2021/