From: Paul Cosgrove (paul.cosgrove@heanet.ie)
Date: Mon Jan 14 2008 - 09:47:49 ARST
Not sure if this email fot through first time around...
Paul Cosgrove wrote:
> The command does not require a default route to be in the routing table
> and so there is no need to have the 'always' option. NSSA areas do not
> have a 0.0.0.0/0 route injected from area 0 by default, but this command
> can be used to inject one on an ABR.
>
> Except for the directly connected interface in area 0, the command has
> no dependency on other routes. If the only area 0 interface fails then
> the router ceases to be an ABR and the default route will be withdrawn.
>
> Paul.
>
> Cielieska Nathan wrote:
>> All,
>>
>> I was doing some labs today and could not find a place to do a default
>> route into OSPF (NSSA area) with the always option.
>>
>> NSSA ASBR
>> area 1 nssa default-information-originate has no "always" keyword
>>
>> STANDARD ASBR
>> default-information originate always
>>
>> Is it a correct assumption that only Type-5 default routes can be kept
>> in the routing table in the instance of a flapping default route on an
>> "upstream" router but Type-7's (or routers in an NSSA) cannot keep a
>> default route in case of a flapping default route?
>>
>> Regards,
>> Nate
>>
>> _______________________________________________________________________
>> Subscription information may be found
>> at:http://www.groupstudy.com/list/CCIELab.html
>>
>
>
-- Paul Cosgrove HEAnet Limited, Ireland's Education and Research Network 1st Floor, 5 George's Dock, IFSC, Dublin 1 Registered in Ireland, no 275301 tel: +353-1-660 9040 fax: +353-1-660 3666 web: http://www.heanet.ie/
This archive was generated by hypermail 2.1.4 : Fri Feb 01 2008 - 10:37:59 ARST