varnishadm backend.list refs

[Ashish Nepal]

What is Refs on varnishadm backend.list command?
is this number of connection established?
[root at varnishbox ~]# varnishadm backend.listBackend name                   Refs   Admin      Probeweb1(12.12.12.12,,80)         2      probe      Healthy 5/5web2(12.12.12.12,,80)        2      probe      Healthy 5/5web3(12.12.12.12,,80)        1      sick       Healthy 5/5web4(12.12.12.12,,80)        3      probe      Healthy 5/5sec_honey(127.0.1.2,,3)        1      probe      Healthy (no probe) 		 	   		  
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