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OSPF - Coggle Diagram
OSPF
stub area type
stub area
filter the external route (redistribution
Not allow to have ASBR in stub area
2.totally stub
filter the external and inter-area route
Not allow to have ASBR
NSSA
used case
to allow ASBR in the NSSA area
filter external route
generate type 7 LSA
Totally NSSA
filter external, inter-area route
to allow ASBR
3 type of authen.
no atuehntication
2, simple pwd
MD5
based AH and ESP
support by OSPFv3
type of design
single area
for small network
multiple area
for large network