Re: BGP load balancing using Loopbacks.

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 ?
  <1-32> 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. End with CNTL/Z.
>
> R1(config)#router ei 1
> R1(config-router)#maximum-paths ?
> <1-16> 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 ?
> >> >
> >> > <1-32> 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
> >> >>> >>
> >> >>> >>
> >> >>> >>
> >> >>> >>
> _______________________________________________________________________
> >> >>> >> Subscription information may be found at:
> >> >>> >> http://www.groupstudy.com/list/CCIELab.html
> >> >>> >
> >> >>> >
> >> >>> > 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
> >> >>>
> >> >>>
> >> >>>
> _______________________________________________________________________
> >> >>> Subscription information may be found at:
> >> >>> http://www.groupstudy.com/list/CCIELab.html
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >> -Steve Di Bias
> >> >
> >> >
> >> >
> >> > --
> >> > -Steve Di Bias
> >> >
> >
> >
> >
> > --
> > -Steve Di Bias
> >
>

-- 
-Steve Di Bias
Blogs and organic groups at http://www.ccie.net