Radius and port 77

[plegrand]

Hello,
i'm using radius authentication (freeradius) on OS6250 and OS6450 and i can see on log this kind of message :

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Login OK: [E0CCF85D9BC4/E0CCF85D9BC4] (from client Switch-SW023 port 77 cli e0ccf85d9bc4)
Login incorrect (No Auth-Type found: rejecting the user via Post-Auth-Type = Reject): [FA9A513AB09D/FA9A513AB09D] (from client Switch-GLT-224 port 77 cli fa9a513ab09d)

Does someone could explain me what means "port 77"

As much as I understand this notation :

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Login OK: [64006A8E1227/64006A8E1227] (from client Switch-SW012 port 1021) 

As much i cant understand port 77.
Thanks for your help
Pascal

[plegrand]

Any idea about this ?

[Gleylancer]

Are these debug internals? I do not believe these ports are related to the IP protocol.