registry
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... "_pres.<proto>.example.com.", where "<proto>" would be a label
registered in the Instant Messaging SRV Protocol Label registry
or the Presence SRV Protocol Label registry ...
... registry
or the Presence SRV Protocol Label registry: either "_xmpp" for
an XMPP-aware domain ...
... IMP-SRV]
defines an Instant Messaging SRV Protocol Label registry for
protocols that can provide services that conform to the "_im" SRV ...
... IANA registers
the "_xmpp" protocol label in the appropriate registry, as follows:
Protocol label: _xmpp
...
... IMP-SRV]
defines a Presence SRV Protocol Label registry for protocols that can
provide services that conform to the "_pres" SRV ...
... IANA registers the "_xmpp"
protocol label in the appropriate registry, as follows:
Protocol label: _xmpp
...