Re: [j-nsp] [j-nsp] Re: Juniper courses?

From: Sara Ruhmann (sara@lunar.net)
Date: Thu Oct 19 2000 - 18:23:27 EDT


The PCs have multiple serial and ethernet ports. When I attended the
course a few months ago the lab was about half Mxx junipers and
half olives (PCs). The only differences between the olives and the
Mxx routers is (1)the fxp0/fxp1 stuff -- these have specific functions
on the Mxx's, but are normal FEs on the olives, and (2) you can't see
a bunch of the show chassi stuff on the olives.

I understand that the olives in the lab were a short term, limited budget,
physically light weight, solution. I belive they're retiring them in favor
of Mxx's now.

-sara

On Thu, Oct 19, 2000 at 03:09:10PM -0700, Paulo Pereira wrote:
> Hi,
>
> the labs are done on PC's ?
>
> But, this away you don't the change to configure stuff
> with real traffic...
>
> Or does the PCs have lots of ?ethernet? interfaces?
>
> How do you do a internetwork ?
>
> PP
>
> --- Rene Avi <rene.avi@kpnqwest.com> wrote:
> > At 22:38 13/10/2000 -0500, Rob Thomas wrote:
> > >Hello, listfolk.
> > >
> > >Has anyone recently attended the ever-full Juniper
> > courses, e.g. the
> > >three or five day course bundle? If so, I would
> > like to hear your
> > >impressions of the course.
> >
> > I had the pleasure to attend the 5 days juniper
> > course in europe. It´s focused
> > on the hw/sw-design and most important the look &
> > feel of those boxes.
> > The course - as well as the product - is built for
> > service providers so you
> > should bring along a clear understanding of the
> > protocols and techniques
> > used in
> > this enviroment (BGP, OSPF, IS-IS, Multicast), don´t
> > expect explanations
> > on that during the course. The funny part is the
> > labs are on ordinary PCs
> > running JunOS, which makes it kind of cheap to built
> > your own lab.
> >
> > Basicly it´s where you find the IOS-feature on JunOS
> > + configuration labs.
> > I recommend it for a start into JuniperLand :-)
> >
> > Cheers,
> > /rene
> >
> > --
> > / Rene Avi <Rene.Avi@KPNQwest.com> | Phone: +43 1
> > 89933 0 Fax 533 \
> > \ KPNQwest Engineering&Technical Ops| Diefenbachg.
> > 35 A-1150 Wien /
> >
>
>
> __________________________________________________
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From jared@puck.neth¦óÅ;et
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From: Serge Maskalik ¦óÅ;ge
To: Pegg Damon <Damon.Pegg@carrier1.com>
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     Not true - IOS IS-IS implementation *only* uses the
    default metric of 1¦óÅ; t
    is not configured on an interface. The loopback is
    should be introduced as a passive i¦óÅ;fa
    have a null metric. See below:

-----
BR1.C11-0.SJC#sh isis database detail verbose

IS-IS Level-2 Link ZéÅ;e
LSPID
CR1.C11-0.SJC.00-00 0x00000022 0x¦óÅ;
  Auth: Length: 8
  Area Address: 49.0000
  NLPID: 0xCC
  Hostname: CR1.C11-0.¦óÅ;
  Metric: 50 IS-Extended CR1.C11-0.SJC.02
  Metric: 50 IS-Extended CR1.C11-0.SJC¦óÅ;
  Metric: 50 IP 10.10.10.0/25
  Metric: 50 IP 172.16.0.144¦óÅ;
  Metric: 0 IP 172.16.1.20/32 <---- loopback0 int

    
     Same is tr¦óÅ;or

-----
serge@BR2.C11-0.SJC> show isis database detail
IS-IS level 1 link-state database:

BR2.C11-0.SJC.00-00ZéÅ;qu

BR2.C11-0.SJC.00-00 Sequence: 0x¦óÅ;Ch
   IS neighbor: CR1.C11-0.SJC.02 Metric: 10
   IS neighbor: ZéÅ;
   IP prefix: ¦óÅ;
                                 ^^^^^^^^^^^^^
                           ¦óÅ;
   
   IP prefix: 10.10.10.0/25 Metric: 10 Internal

           

        - Serge

Thu¦óÅ;ak

> The Cisco default metric is 10, and although you can argue whether or not
> thi¦óÅ; r
> do say 'sh ip ro' for a hostname who's dns entry is t¦óÅ;oo
> then you get 10 added to the actual metric to reach the box. As far as I
> can tell this is the same on¦óÅ;ip
> a loopback as source for load-balancing two or more circuits you may want to
> explicitly zero the loopback metric.
>
> damon.
>
> > -----Original Message-----
> > From: Jay Burns [mailto:jayburns66@hotmail.com]
> > Sent: 24 May 2001 02:25
> > To: juniper-nsp@puck.nether.net
> > Subject: [j-nsp] ISIS metric question
> >
> >
> > I notice if I use a Juniper for a given network node and
> > configure the net
> > address for an ISIS instance on the loopback, a metric 10 is
> > added to path
> > costs above that if I used a Cisco for the same node. Why
> > would you want to
> > add a cost to the loopback as if the router resides off the loopback?
> >
> > -Jay
> > _________________________________________________________________



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