1.

In SH IP PROTOCOLS:- where/what is the OSPF area? where is the OSPF Routers ID of neighbours, Are there timers in EIGRP?

2.

In DEBUG IP OSPF PACKET:- what is chk:8074, aut:0, auk: from Serial 0/2/0.

How do we know it'll be SENDING Hellos in this command?

3.

in DEUG IP OSPF ADJ:-are LSAs packets only sent by DR & not BDR? Are LSA updates still received from outdated defunct DRs & other Routers?

4.

Whats difference between LS Updates & LS Adverts?

5.

How do we distinguish between Hello Packets & LSA Packets?

6.

How can a LOOPBACK I/F become a RID....will it physically send adverts "like" sub-i/f's in VLANs?