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New Member

NSSA and redistribute external routes and N1, N2 flags

Will a route that is redistributed into OSPF only be represented with either an " E1 " or " E2 " designation ??? or it can be represented with an " N1 " and " N2 " flag as well ?

As the link below verify that

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00800943c5.shtml

[quote]

A- External Type-2 or External Type-1?Routes which were redistributed into OSPF, such as Connected, Static, or other Routing Protocol, are known as External Type-2 or External Type-1. These routes are flagged as O E2 or O E1 in the show ip route command output.

B- NSSA external type 2 or NSSA external type 1?When an area is configured as a Not-So-Stub Area (NSSA), and routes are redistributed into OSPF, the routes are known as NSSA external type 2 or NSSA external type 1. These routes are flagged as O N2 or O N1 in the show ip route command output.

[/quote]

The reason I am asking this question , because I have read that Type 7 routes are displayed as normal OSPF routes !!!!!

2 REPLIES
Purple

Re: NSSA and redistribute external routes and N1, N2 flags

Hi,

Routes installed in the routing table as a result of information in Type-7 LSAs are always represented with an N. Depending on whether they are type-1 or type-2 externals, it will be either N1 or N2

If you have read that the type-7 routes are installed as non-N routes, then the document is incorrect.

Hope that helps - pls do rate the post if it does.

Paresh

New Member

Re: NSSA and redistribute external routes and N1, N2 flags

Thanks Paresh

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