hello Jaq ..
I've read recently the OSPF and EIGRP in the ACRC course , I didn't revise
it yet so I maybe wrong but what I know about this is that
1-the hello intervel in ospf is 10 sec by default in multiarea configuration
.
2-the hello packets are used to verify the state os the adjacent links ...
it is broadcasted on each interface .
3-is a link went dead then the router that discovered it will issue a LSU "
link state update " packets and send it to it's adjacent routers and then
the receiving routers will update their link state tree and issuse a LSA "
link state acknowldge packets in responce .
now you should only know that normally in a single area configuration all
the communication between the adjacnet routers is done through the DR or the
BDR" disgnated router or backup disgnated router " on othere word there is
no direct link between any two adjacent router they communicate with
eachother through the dr or bdr ..
as for the EIGRP ... I really don't remmber much about it .. but I think the
hello packets are issued every 60 sec .
hope I was of any help ..
"Jacques Lee" wrote in message <8gqaui$hg$[EMAIL PROTECTED]>...
>Dear all,
>
>I'm a little bit confused with the update time interval for hello
>packets sent in OSPF and EIGRP. by default, is it 10s or 5s ?
>
>Thanks
>
>--
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