OSPF:
OSPF
5
! OSPF. . .
:
(Stubby Area)
1 - OSPF
1 1 . . 1 . :
ATL2# configuration terminal Enter configuration commands, one per line. End with CNTL/Z. ATL2 (config)#router ospf 1 ATL2 (config-router)#area 1 stub ATL2 (config-router)#end ATL2# ORL# configuration terminal Enter configuration commands, one per line. End with CNTL/Z . ORL(config)#router ospf 1 ORL(config-router)#area 1 stub ORL(config-router)#end ORL#
. OSPF.
show ip route ospf
, ! ASBR. , ABR. , 1 ( ).
OSPF. , :
show ip ospf database
Type 4 LSA Type 5 LSA , Type 3 LSA .
: OSPF (Open Shortest Path First) 8
(Totally Stubby Area)
, 1 . Type 3 LSA, Loopback 0 ATL ATL AT2. , , , -! :
ATL2# configuration terminal Enter configuration commands , one per line . End with CNTL/Z. ATL2 (config)#router ospf 1 ATL2 (config-router )#area 1 stub no-summary ATL2 (config-router )#end ATL2#
show ip route ospf
show ip ospf database
Not So Stubby Area (NSSA)
, Not So Stubby Area (NSSA). , -, LSA 7. ABR LSA 5 OSPF ().
:
ATL2# configuration terminal Enter configuration commands , one per line. End with CNTL/Z. ATL2 (config)#router ospf 1 ATL2 (config-router)#no area 1 stub ATL2 (config-router)#area 1 nssa ATL2 (config-router)#end ATL2# ORL# configuration terminal Enter configuration commands , one per line . End with CNTL/Z. ORL(config)#router ospf 1 ORL(config-router)#no area 1 stub ORL(config-router)#area 1 nssa ORL(config)#interface loopback10 ORL(config-if)#ip address 172.16.10. 255.255.255.0 ORL(config)#interface loopback20 ORL(config-if)#ip address 172.16.20. 255.255.255.0 ORL(config-if)#exit ORL(config)#router eigrp 200 ORL(config-router)#network 172.16.10. 0.0.0.0 ORL(config-router)#network 172.16.20. 0.0.0.0 ORL(config-router)#exit ORL(config)#router ospf 1 ORL(config-router)#redistribute eigrp 200 subnets metric 1000 ORL(config-router)#end ORL#
. OSPF OSPF ORL:
show ip route ospf
show ip ospf database
, Type 3 0 (1.1.1.1 10.12.12.0). OSPF , NSSA , . , 1 Type 7 . ATL, , Type 5 LSA, .
show ip route ospf
show ip ospf database
, , NSSA. Type 5s, .
: NSSA . , ! , ATL2:
area 1 nssa default-information-originate
Totally NSSA
Totally Stubby, , Totally NSSA. LSA . Type 3 LSA. .
:
ATL2# configuration terminal Enter configuration commands , one per line . End with CNTL/Z. ATL2 (config)#router ospf 1 ATL2 (config-router )#area 1 nssa no-summary ATL2 (config-router )#end ATL2#
show ip route ospf
show ip ospf database
, ( OSPF) ORL.
, OSPF LSA. OSPF.
