[zeromq-dev] Precise meaning of ZMQ_MULTICAST_HOPS?
steven.mccoy at miru.hk
Sat Sep 1 01:26:31 CEST 2012
On 31 August 2012 16:59, CFK <cfkaran2 at gmail.com> wrote:
> it says that this limits the TTL, which would limit packets to whatever
> hop diameter I want, but the full documentation talks about 'local
> network', which makes me think of local subnet, which is an entirely
> different thing. So, is it a true TTL, or is it for the local subnet? If
> it is for the local subnet, what is the best/easiest way to make all
> multicast packets have a true TTL?
A TTL of 1 is the local subnet, a value of 16 is quite popular as it
bypasses a defect with some Cisco hardware. Note you really need a very
expensive router for good performance.
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