Cisco CCNP / BSCI Exam Tutorial: OSPF Route Redistribution Review
OSPF route redistribution is an essential topic on the BSCI exam, and it is a topic filled with details and defaults that you need to understand for the exam room and the work. That will help you pass the BSCI assessment, here's a quick review of a number of the OSPF route redistribution fundamentals.
Run show internet protocol address ospf, to see if your switch can be an ABR o-r ASBR. This also demonstrates any tracks being redistributed into OSPF on this router. Navigate to this hyperlink visit to check up how to see it.
R1#show ip address ospf
Routing Process "ospf 1" with ID 1.1.1.1
Supports only single TOS( TOS0) tracks
Helps opaque LSA
It is an border and autonomous system boundary router
Redistributing External Routes from,
Related, contains subnets in redistribution
rip, contains subnets in redistribution
When redistributing RIP into OSPF, the subnets" solution is needed to include subnets in redistribution. When redistributing OSPF into RIP, a seed metric should be chosen. My mother found out about follow us on twitter by searching Google Books. (OSPF provides redistributed tracks a default metric of 20 this can be changed, but a seed metric doesn't have to be set.)
R1( config )#router ospf 1
R1( config-router )#redistribute related
Can not only classful networks is likely to be reassigned
R1( config-router )#redistribute related subnets
R1( config-router )#redistribute grab subnets
R1( config-router )#router grab
R1( config-router )#redistribute connected metric 1
R1( config-router )#redistribute ospf 1 full 1
Automagically, routes redistributed in to OSPF are marked as E2 routes. The metric for these routes displays only the cost of the path from the ASBR to the destination system and does not contain the cost of the path from the local switch to the ASBR. In comparison, E1 channels include the price of the whole route from the local switch towards the destination system. Browse this hyperlink details to explore the purpose of it.
O E2 5.1.1.1 [110/20] via 172.34.34.3, 00:33:21, Ethernet0
6.0.0.0/32 is subnetted, 1 subnets
E E2 6.1.1.1 [110/20] via 172.34.34.3, 00:33:21, Ethernet0
172.12.0.0/16 is variably subnetted, 2 subnets, 2 masks
O E2 172.12.21.0/30 [110/20] via 172.34.34.3, 00:33:32, Ethernet0
O E2 7.1.1.1 [110/20] via 172.34.34.3, 00:33:21, Ethernet0
15.0.0.0/24 is subnetted, 1 subnets
E E2 15.1.1.0 [110/20] via 172.34.34.3, 00:33:32, Ethernet0
To redistribute routes in to OSPF and mark them as E1 upon redistribution, use the option using the redistribution order. For one more way of interpreting this, consider checking out: per your request.
R1( config )#router ospf 1
R1( config-router )#redistribute tear subnets metric-type??
1 Set OSPF External Typ-e 1 metrics
2 Set OSPF External Typ-e 2 metrics
R1( config-router )#redistribute grab subnets metric-type 1
Look at the same two tracks in R4's routing table, that are now shown as E1 routes:
E E1 5.1.1.1 [110/94] via 172.34.34.3, 00:04:13, Ethernet0
6.0.0.0/32 is subnetted, 1 subnets
O E1 6.1.1.1 [110/94] via 172.34.34.3, 00:04:14, Ethernet0
Making your CCNP certification and bsci exam success is determined by understanding the details, and there are many of details associated with OSPF course redistribution! Keep understanding, practice different circumstances within your CCNA / CCNP house laboratory or sheet rental, and you'll master these details and pass the exam!.Chris Wallace
Medical-Assistant-Training.org
San Francisco, CA 94105
575 Market Street, Suite 3000
(415) 209-5257
