Re: LSA Type 4 again

Wow I think this is the first time I detect an error in text from Jeff
Doyle, damn! he is human after all :-P

--
Rick Mur
CCIE2 #21946 (R&S, Service provider)
Sr. Support Engineer -- IPexpert, Inc.
Sent from my iPhone
On 6 sep 2009, at 18:26, Narbik Kocharians <narbikk_at_gmail.com> wrote:
> 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
>
>
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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