Refer https://developers.google.com/cloud-messaging/ccs#connecting
I want to have a XMPP based server for GCM. I am unable to understand "For each sender ID, GCM allows 1000 connections in parallel" Here What does connection mean ?
is it the connection which my CCS server will make with GCM server ?
is it the connection that each device (ios/android/crome) will make with GCM server ?