join
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... host group is dynamic; that is, hosts may join
and leave groups at any time. There is no restriction on the
...
... such as resource location or status reporting, but it does not allow
a host to join any host groups. An IP ...
... upper-layer protocol must ask the IP module
to join that group. Thus, the IP service interface ...
... upper-layer protocols.
Each membership should have an associated reference count or similar
mechanism to handle multiple requests to join and leave the same
group. On the first request to join ...
... join and leave the same
group. On the first request to join and the last request to leave a
group on a given interface ...