On 10/03/2017 6:36 a.m., Matus UHLAR - fantomas wrote:
> Hello,
> 
> does it have sense to run pinger without having cache peers configured?
> 
> if I get the "Network DB Statistics:" output properly, it seems that 33% of
> hosts is unreachable.
> 

The code using it is called peer-selection, but that includes choosing
between origin servers (DIRECT) as well as cache_peer lines. So it can
affect traffic routing even if you dont have cache_peer. Though less
that RTT based cache_peer LB algorithms.

The sad results are due to admin ICMP echo blocking. Hopefully that is
all they are blocking though and not other mandatory ICMP codes like
path-MTU discovery.

Amos

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