varnishlog output column meaning

Tung Nguyen tnguyen at
Sun Mar 22 10:01:37 CET 2009

Hey guys,

In the the varnishlog output

Where can I find out more info on what the columns mean,
So what does the 7 vs 10 mean in the first column?
What does the b vs c mean in the second column?

 7 VCL_return   c pass
10 BackendOpen  b default 57141 3000
 7 Backend      c 10 default default
10 TxRequest    b HEAD

Thanks in advance for any responses,

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