Re: BGP load balancing using Loopbacks.

From: Marko Milivojevic <markom_at_ipexpert.com>
Date: Tue, 26 Apr 2011 14:39:39 -0700

There are no open ended questions in CCIE R&S lab any longer (since
May 10, 2010).

--
Marko Milivojevic - CCIE #18427
Senior Technical Instructor - IPexpert
FREE CCIE training: http://bit.ly/vLecture
Mailto: markom_at_ipexpert.com
Telephone: +1.810.326.1444
Web: http://www.ipexpert.com/
On Tue, Apr 26, 2011 at 14:38, Nish Vamadevan <ipnish_at_gmail.com> wrote:
> Quick questions, if this question ends up on the 'Open Ended' section of a CCIE Lab, what would be the answer be? Cos I have always though it is 16...
>
>
> Regards,
> Nish
>
> http://twitter.com/nish
>
> -----Original Message-----
> From: Steve Di Bias <sdibias_at_gmail.com>
> Sender: nobody_at_groupstudy.com
> Date: Tue, 26 Apr 2011 14:34:58
> To: Marko Milivojevic<markom_at_ipexpert.com>
> Reply-To: Steve Di Bias <sdibias_at_gmail.com>
> Cc: David Prall<dcp_at_dcptech.com>; Jacek<q.192.168.1.0_at_gmail.com>; Cisco certification<ccielab_at_groupstudy.com>
> Subject: Re: BGP load balancing using Loopbacks.
>
> yup that's what I see on the code base as well, but on 12.4(24)T4 I see
>
> R6(config)#do sh ver | i IOS
> Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version
> 12.4(24)T4, RELEASE SOFTWARE (fc2)
>
> R6(config)#router eigrp 5
> R6(config-router)#maximum-paths ?
> B <1-32> B Number of paths
>
> On Tue, Apr 26, 2011 at 2:31 PM, Marko Milivojevic <markom_at_ipexpert.com>wrote:
>
>> R1#sh version | include IOS
>> Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version
>> 12.4(15)T9, RELEASE SOFTWARE (fc5)
>>
>> R1#conf t
>> Enter configuration commands, one per line. B End with CNTL/Z.
>>
>> R1(config)#router ei 1
>> R1(config-router)#maximum-paths ?
>> B  <1-16> B Number of paths
>>
>> --
>> Marko Milivojevic - CCIE #18427
>> Senior Technical Instructor - IPexpert
>>
>> FREE CCIE training: http://bit.ly/vLecture
>>
>> Mailto: markom_at_ipexpert.com
>> Telephone: +1.810.326.1444
>> Web: http://www.ipexpert.com/
>>
>> On Tue, Apr 26, 2011 at 14:23, Steve Di Bias <sdibias_at_gmail.com> wrote:
>> > On a 2800 running 12.4(24)T4 I see 32, but on some running older IOS I'm
>> > seeing 16 as well
>> >
>> > On Tue, Apr 26, 2011 at 2:13 PM, Marko Milivojevic <markom_at_ipexpert.com>
>> > wrote:
>> >>
>> >> I tried on ProctorLabs 2800 and the maximum was 16.
>> >>
>> >> --
>> >> Marko Milivojevic - CCIE #18427
>> >> Senior Technical Instructor - IPexpert
>> >>
>> >> FREE CCIE training: http://bit.ly/vLecture
>> >>
>> >> Mailto: markom_at_ipexpert.com
>> >> Telephone: +1.810.326.1444
>> >> Web: http://www.ipexpert.com/
>> >>
>> >> On Tue, Apr 26, 2011 at 14:10, Steve Di Bias <sdibias_at_gmail.com> wrote:
>> >> > Also confirmed the 32 paths on a Cat 6509 running 12.2(33)SXI1
>> >> >
>> >> > DS-6509-IDF-1(config-router)#maximum-paths ?
>> >> >
>> >> > B  <1-32> B Number of paths
>> >> >
>> >> > On Tue, Apr 26, 2011 at 2:05 PM, Steve Di Bias <sdibias_at_gmail.com>
>> >> > wrote:
>> >> >>
>> >> >> I noticed the same thing and had to use the master index to find what
>> I
>> >> >> was looking for
>> >> >>
>> >> >> On Tue, Apr 26, 2011 at 1:41 PM, Marko Milivojevic
>> >> >> <markom_at_ipexpert.com>
>> >> >> wrote:
>> >> >>>
>> >> >>> You are correct. A quick check in the CLI can confirm this. Thanks
>> for
>> >> >>> a refresher :-)
>> >> >>>
>> >> >>> Btw. it looks like EIGRP command reference is once again gone from
>> the
>> >> >>> DocCD :-).
>> >> >>>
>> >> >>> --
>> >> >>> Marko Milivojevic - CCIE #18427
>> >> >>> Senior Technical Instructor - IPexpert
>> >> >>>
>> >> >>> FREE CCIE training: http://bit.ly/vLecture
>> >> >>>
>> >> >>> Mailto: markom_at_ipexpert.com
>> >> >>> Telephone: +1.810.326.1444
>> >> >>> Web: http://www.ipexpert.com/
>> >> >>>
>> >> >>> On Tue, Apr 26, 2011 at 13:25, David Prall <dcp_at_dcptech.com> wrote:
>> >> >>> > Updated: Aug 23, 2005
>> >> >>> >
>> >> >>> > I'd say that EIGRP has changed a little bit in the past 5+ years.
>> >> >>> > Default
>> >> >>> > max paths use to be all over the place, it is now 4 for all IGP's.
>> >> >>> > CEF
>> >> >>> > allows for 32 paths now as well.
>> >> >>> >
>> >> >>> > David
>> >> >>> >
>> >> >>> > --
>> >> >>> > http://dcp.dcptech.com
>> >> >>> >
>> >> >>> >
>> >> >>> >> -----Original Message-----
>> >> >>> >> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On
>> >> >>> >> Behalf
>> >> >>> >> Of
>> >> >>> >> Jacek
>> >> >>> >> Sent: Tuesday, April 26, 2011 3:56 PM
>> >> >>> >> To: Cisco certification
>> >> >>> >> Subject: BGP load balancing using Loopbacks.
>> >> >>> >>
>> >> >>> >> Hello all,
>> >> >>> >>
>> >> >>> >> I am referring to Cisco article:
>> >> >>> >>
>> >> >>> >>
>> >> >>> >>
>> >> >>> >>
>> http://www.cisco.com/en/US/tech/tk365/technologies_configuration_exampl
>> >> >>> >> e09186a00800945bf.shtml#conf1
>> >> >>> >>
>> >> >>> >> RA(AS11)======EIGRP======RB(AS10)
>> >> >>> >>
>> >> >>> >> Peering is done using loopback interfaces.
>> >> >>> >> RA and RB run EIGRP and advertise Loopbacks and connecting links.
>> >> >>> >> Load balancing between loopback interfaces is assured by EIGRP.
>> >> >>> >>
>> >> >>> >> My question is about Cisco statement:
>> >> >>> >> "This scenario shows how to achieve load sharing when there are
>> >> >>> >> multiple *(up
>> >> >>> >> to a maximum of six), equal-cost links*."
>> >> >>> >>
>> >> >>> >> Why there is a limit of 6 links and why they need to be equal ?
>> >> >>> >> I think that any limits in this scenario are imposed by EIGRP and
>> >> >>> >> EIGRP
>> >> >>> >> supports unequal load balancing up to 16 links.
>> >> >>> >>
>> >> >>> >> Thanks,
>> >> >>> >>
>> >> >>> >>
>> >> >>> >> Blogs and organic groups at http://www.ccie.net
>> >> >>> >>
>> >> >>> >>
>> >> >>> >>
>> >> >>> >>
>> _______________________________________________________________________
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>> >> >>> >
>> >> >>> >
>> >> >>> > Blogs and organic groups at http://www.ccie.net
>> >> >>> >
>> >> >>> >
>> >> >>> >
>> _______________________________________________________________________
>> >> >>> > Subscription information may be found at:
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>> >> >>>
>> >> >>>
>> >> >>> Blogs and organic groups at http://www.ccie.net
>> >> >>>
>> >> >>>
>> >> >>>
>> _______________________________________________________________________
>> >> >>> Subscription information may be found at:
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>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>
>> >> >>
>> >> >>
>> >> >> --
>> >> >> -Steve Di Bias
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > -Steve Di Bias
>> >> >
>> >
>> >
>> >
>> > --
>> > -Steve Di Bias
>> >
>>
>
>
>
> --
> -Steve Di Bias
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
Received on Tue Apr 26 2011 - 14:39:39 ART

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