[Babel-users] leaving Multicast Group in check_interfaces()

[Christof Schulze]

Hello everyone,

In check_interfaces() there is one implementation detail that astonishes 
me:

When it is found that the ifindex is changed, I would expect that the 
interface must be re-initialized. Thus: taking it down (As the logic 
currently does) and leaving the multicast group. The current 
implementation leans on a hidden way of not leaving the multicast group 
in this case however.

Why is that?
Shouldn't we leave and re-join later if the interface status indeed is 
changed?

Regards

Christof

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