Re: LSA Type 4 again

LSA type 4 WILL NOT be permitted in any stub areas, as a matter of fact it
won't even be in the area 0, if you have area 0 and a NSSA area, the only
time you will see LSA type 4s is if you have another area (Non-zero area )
connected to area 0.

Therefore, i agree with Scott.

On Sun, Sep 6, 2009 at 8:46 AM, Rick Mur <rmur_at_ipexpert.com> wrote:

> That's a pretty clear explanation :-)
>
> --
>
> Rick Mur
> CCIE2 #21946 (R&S, Service provider)
> Sr. Support Engineer -- IPexpert, Inc.
>
> Sent from my iPhone
>
>
> On 6 sep 2009, at 17:20, Scott Morris <swm_at_emanon.com> wrote:
>
> "Allowed" and "will exist" are two different things. I'll let Jeff run
>> with the idea that they're permitted in NSSA areas 'cause I like Jeff.
>> However, I will guarantee that they will not exist in NSSA areas. :)
>>
>> So call it whatever you want!
>>
>>
>>
>>
>> *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,
>>
>> JNCIE-M #153, JNCIS-ER, CISSP, et al.
>>
>> CCSI #21903, JNCI-M, JNCI-ER
>>
>> swm_at_emanon.com
>>
>>
>> Knowledge is power.
>>
>> Power corrupts.
>>
>> Study hard and be Eeeeviiiil......
>>
>>
>>
>> Molomo wrote:
>>
>>> Experts,
>>>
>>> Jeff Doyle says LSA type 4 is allowed in nssa area ( see table below). I
>>> would have thought that since LSA 5 is not permitted then no need to
>>> generate LSA 4.
>>>
>>> My understanding is , ABR generates LSA 4 based on the type 5, to
>>> describe
>>> the position of the ASBR.
>>>
>>>
>>> Or am I missing something here?
>>>
>>>
>>> I have also seen this in Quick Reference Sheet by Anthony Sequeira.
>>>
>>>
>>>
>>>
>>> Table 8-5. LSA types allowed per area type.
>>>
>>> Area Type
>>>
>>> 1&2
>>>
>>> 3
>>>
>>> 4
>>>
>>> 5
>>>
>>> 7
>>>
>>> Backbone (area 0)
>>>
>>> Yes
>>>
>>> Yes
>>>
>>> Yes
>>>
>>> Yes
>>>
>>> No
>>>
>>> Non-backbone, non-stub
>>>
>>> Yes
>>>
>>> Yes
>>>
>>> Yes
>>>
>>> Yes
>>>
>>> No
>>>
>>> Stub
>>>
>>> Yes
>>>
>>> Yes
>>>
>>> No
>>>
>>> No
>>>
>>> No
>>>
>>> Totally stubby
>>>
>>> Yes
>>>
>>> No[*]<mk:@MSITStore
>>> :C:\Documents%20and%20Settings\user\Desktop\R&S%20CCIE\Recommended%20Reading\Books\Cisco%20press\Jeff%20Doyle\CCIE_Professional_Development_Routing_TCPIP,_Volume_I,_Second_Edition.chm::/1587052024/ch08lev1sec1.html#ch08tn01>
>>>
>>> No
>>>
>>> No
>>>
>>> No
>>>
>>> Not-so-stubby
>>>
>>> Yes
>>>
>>> Yes
>>>
>>> Yes
>>>
>>> No
>>>
>>> Yes
>>>
>>> [*] Except for a single type 3 LSA per ABR, advertising the default route
>>>
>>>
>>>
>>> Regards,
>>>
>>> Molomo
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
>>>
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-- 
Narbik Kocharians
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining.com
Sr. Technical Instructor
Blogs and organic groups at http://www.ccie.net