Finally!  Thank you!!!!


________________________________
 From: Christopher Lemish <[email protected]>
To: Jay McMickle <[email protected]>; Bal Birdy <[email protected]> 
Cc: "[email protected]" <[email protected]>; Fulvio 
allegretti <[email protected]> 
Sent: Wednesday, May 2, 2012 11:51 AM
Subject: Re: [OSL | CCIE_RS] iBgp vs eBgp path selection
 
Thought I would add this one:



We Love Oranges As Oranges Mean Pure Refreshment



1.      Weight

2.      Local Preference

3.      Originate

4.      AS

5.      Origin (IGP/EGP/i=incomplete)

6.      MED (lowest)

7.      Paths (External paths over Internal)

8.      Router ID



Thank you,

Chris











-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Jay McMickle
Sent: Tuesday, May 01, 2012 9:36 PM
To: Bal Birdy
Cc: [email protected]; Fulvio allegretti
Subject: Re: [OSL | CCIE_RS] iBgp vs eBgp path selection



Great question! Here's the top 8 (it's all I can recall)- We Like Never See 
Ladies Making Eggs Lately (sorry, it's the only way I could remember)-



BGP pecking order:

Weight

Local-Pref

Network statement or Aggregate

Shortest AS Path

Lowest Orig type (prefer eBGP)

MED

eBGP over iBGP

Lowest IGP metric





Regards,

Jay McMickle- CCNP,CCSP,CCDP

Sent from iJay



On May 1, 2012, at 3:52 PM, Bal Birdy 
<[email protected]<mailto:[email protected]>> wrote:



> BGP Path decision process shows that weight is higher in the path

> selection to the decision that says ebgp is preferred over ibgp.

>

> BGP is a tricky beast where the AD isn't chosen first, it's not a

> traditional routing protocol more a path selection. Somebody correct

> me if I'm wrong as I have my written exam soon and I'll have to go

> back to the books !!!!

>

> B

>

> On Wed, May 2, 2012 at 7:11 AM, Fulvio allegretti

> <[email protected]<mailto:[email protected]>>wrote:

>

>>

>> Hi all,

>> Doing lab 9 Volume 2 - Task 4.4, configure R6 such that if it learned

>> the same route via eBGP, it would still prefer the same route it has

>> from R2 (iBGP). For my little brain this was very clearly to do with

>> distance, eBGP

>> 20 - iBGP 200, change the distance for the eBGP peers the task refers

>> to and job done. The solution suggests adjusting weight which has

>> left me a bit confused, what do you think? I though that admin

>> distance would be looked at before the path selection algorithm Using

>> the same logic, why does step 7 of the algorithm uses eBGP and iBGP?

>> Again, adming distance is different, so we shouldn't even start the

>> path selection alogrithm. Unless the distance was changed manually I suppose.

>> Fulvio

>> _______________________________________________

>> For more information regarding industry leading CCIE Lab training,

>> please visit www.ipexpert.com<http://www.ipexpert.com>

>>

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>>

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>>

> _______________________________________________

> For more information regarding industry leading CCIE Lab training,

> please visit www.ipexpert.com<http://www.ipexpert.com>

>

> Are you a CCNP or CCIE and looking for a job? Check out

> www.PlatinumPlacement.com<http://www.PlatinumPlacement.com>

>

> http://onlinestudylist.com/mailman/listinfo/ccie_rs

_______________________________________________

For more information regarding industry leading CCIE Lab training, please visit 
www.ipexpert.com<http://www.ipexpert.com>



Are you a CCNP or CCIE and looking for a job? Check out 
www.PlatinumPlacement.com<http://www.PlatinumPlacement.com>



http://onlinestudylist.com/mailman/listinfo/ccie_rs
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit 
www.ipexpert.com

Are you a CCNP or CCIE and looking for a job? Check out 
www.PlatinumPlacement.com

http://onlinestudylist.com/mailman/listinfo/ccie_rs
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit 
www.ipexpert.com

Are you a CCNP or CCIE and looking for a job? Check out 
www.PlatinumPlacement.com

http://onlinestudylist.com/mailman/listinfo/ccie_rs

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