From: Tharak Abraham (tharakabraham@gmail.com)
Date: Mon Mar 23 2009 - 17:55:09 ART
AD should'nt be a factor for database calculations as you said !
You could check both the Rip and the Eigrp databases individually on the
router.
(sh ip rip dat / sh ip eigrp top)
Tharak.
On Mon, Mar 23, 2009 at 9:34 PM, Kelvin Yeo <kelvinyeo@xtracommunication.com
> wrote:
> Hi,
>
> Typo. I meant RIB(routing table) in this case, sorry.
>
> My confusion here was; shouldn't EIGRP and RIP maintain a different
> complete instance of database, and such maintaince does not take account of
> AD. I know that routes will prefer the better AD 90>120 but only if longest
> match occurs. I don't think AD is reference for database compilation(this
is
> where I need clarification)
>
> Thanks tharak.
>
> Kelvin
>
>
>
> ------------------------------
> From: Tharak Abraham <tharakabraham@gmail.com>
> Sent: f f d: , 24 d8 f , 2009 4:07 AM
> To: Kelvin Yeo <kelvinyeo@xtracommunication.com>
> Cc: robclav@gmail.com; Kelvin Yeo <kelvinyeo24@yahoo.com.sg>; Cisco
> certification <ccielab@groupstudy.com>
>
> Subject: Re: RIP not installing routes into RIP database
>
> AD is what it matters when we take Rip and Eigrp in this instance.
> Rip and Eigrp will have its own databases, but which one does the router
> prefer and based on what?
>
> 120 or 90 (the lower the better).
>
> As Rob mentioned and just to cross check the same, you can either increase
> the AD of Eigrp above 120 or decrease the AD of Rip below 90 and see !
>
> Dont mix up FIB and RIB concepts here as the former is for fast lookup or
> fast switching and latter for normal cpu intensive routing table lookup !
>
> BR,
> Tharak.
>
> On Mon, Mar 23, 2009 at 8:42 PM, Kelvin Yeo <
> kelvinyeo@xtracommunication.com> wrote:
>
>> Hi Robclav,
>>
>> Thanks for your response. My understanding is that rip database will
>> install routes when its received(except posion routes). AD is only
compared
>> before installing into FIB if IOS have the same longest match prefix.
>>
>> Correct me if im wrong...
>>
>> Kelvin
>>
>> -----Original Message-----
>> From: robclav@gmail.com
>> Sent: f f d: , 24 d8 f , 2009 3:26 AM
>> To: Kelvin Yeo <kelvinyeo24@yahoo.com.sg>; 'Cisco certification' <
>> ccielab@groupstudy.com>
>> Subject: Re: RIP not installing routes into RIP database
>>
>> Hi Kelvin,
>> In order to see what is going on, try to modify RIP administrative
>> distance from 120 to 80 for instance. Then you will be able to see this
>> route installed at rip database instead of eigrp one.
>> The question is, which one is the purpose for diferents AD? How this is
>> translated to the route exchange?which routes are installed at rip
database?
>>
>> I hope this help you,
>> Robclav
>>
>> BlackBerry de movistar, allm donde estis esta tu oficin@
>>
>> -----Original Message-----
>> From: "Kelvin Yeo" <kelvinyeo24@yahoo.com.sg>
>>
>> Date: Tue, 24 Mar 2009 02:19:47
>> To: 'Cisco certification'<ccielab@groupstudy.com>
>> Subject: RIP not installing routes into RIP database
>>
>>
>> Hi Forum,
>>
>>
>>
>> Quick and short question.
>>
>>
>>
>> I have 2 routers with a serial connection. RIP and EIGRP process is
>> enabled
>> on both routers. No filter-list or any list that will filter routes. 1
>> loopback has been installed into Router A. RIP and EIGRP has 'network' to
>> this loopback.
>>
>>
>>
>> router rip
>>
>> version 2
>>
>> network 1.0.0.0 < this is the loopback
>>
>> network 192.168.1.0
>>
>> no auto-summary
>>
>> router eigrp 10
>>
>> network 0.0.0.0
>>
>> no auto-summary
>>
>>
>>
>> On router B, I can see router A's loopback in EIGRP topology table, but I
>> do not see it in RIP database..and I missing some concept here because I
>> don't understand this result.
>>
>>
>>
>> >From B's 'debug ip rip', I can see it is receiving the update but it
>> just
>> doesn't install in the RIP database.
>>
>>
>>
>> *Mar 1 00:23:18.251: RIP: received v2 update from 192.168.1.1 on
>> Serial1/0
>>
>> *Mar 1 00:23:18.251: 1.1.1.0/24 via 0.0.0.0 in 1 hops
>>
>>
>>
>> Anyone can feedback?
>>
>>
>>
>> Rdgs,
>>
>> Kelvin
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
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>>
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>>
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>>
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