07-28-2009 01:19 AM - edited 03-06-2019 06:58 AM
Hi,
In NBMA (non-broadcast multiple access), this communications protocol have no ability for send broadcast or multicast. How it is establish connection with neighbor because (Hello Message) send as multicast.
BR,
Auos.
07-28-2009 01:46 AM
Hello Auos,
for example for FR by using frame-relay map command with the broadcast option.
FR or ATM NBMA needs to create a copy of each broadcast/multicast packet for each active PVC DLCI.
OSPF has also network types that don't use at all multicast hellos but in this case neighbor commands are needed in the OSPF process.
Hope to help
Giuseppe
07-28-2009 01:56 AM
Did you mean Hello Message send it as unicast.
07-28-2009 03:36 AM
Hello Auos,
yes, I mean OSPF hellos sent as unicast to specified neighbor ip address under router ospf process.
Hope to help
Giuseppe
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