From: Packet Man (ccie2b@hotmail.com)
Date: Fri Mar 19 2004 - 20:12:47 GMT-3
Not sure, I'll have to check
>From: Richard Dumoulin <richard.dumoulin@vanco.es>
>To: Packet Man <ccie2b@hotmail.com>, dswink@cisco.com,
>ccielab@groupstudy.com
>Subject: RE: Lab Tip question?
>Date: Fri, 19 Mar 2004 23:06:29 -0000
>
>I think that sh frame pvc will show all the dlci's configured on the switch
>toward the router independently of frame inv or no frame inv. The frame
>switch will advertise those via lmi, won't it ?
>
>--Richard
>
>-----Mensaje original-----
>De: Packet Man [mailto:ccie2b@hotmail.com]
>Enviado el: viernes, 19 de marzo de 2004 22:50
>Para: dswink@cisco.com; ccielab@groupstudy.com
>Asunto: RE: Lab Tip question?
>
>
>Hey Dave,
>
>From all the practice labs which have a requirement such as "do not use any
>Dlci's except those specified", I've gotten into the habit of entering "no
>frame inverse-arp". But, I don't recall ever trying to confirm that unused
>DLci's don't even appear in output of "show fram pvc".
>
>As best as I can recall, one of those commands prevents an interface from
>requesting the remote ip address while the other command prevents an
>interface from responding to a request. Is that correct?
>
>If so, which command does which?
>
>Thanks
>
>BTW, This is the type of discussion I was hoping my Lab Tips concept would
>generate. And, the wording of the tip I've added to my Tips file is, "If
>only specified DLCI's are allowed, enter "no fram inv" and "no arp fram"
>
>Is there a better or more accurate way to state it?
>
>
> >From: "Dave Swink (dswink)" <dswink@cisco.com>
> >Reply-To: <dswink@cisco.com>
> >To: "'Packet Man'" <ccie2b@hotmail.com>
> >Subject: RE: Lab Tip question?
> >Date: Fri, 19 Mar 2004 14:39:53 -0600
> >
> >Yeah, this is intended as a lab-centric tip only, not real-world. There
> >could theoretically be a requirement that unspecified DLCIs not even
> >appear in your "show frame-relay pvc".
> >
> >I got into the habit of using no arp frame-relay when I was frustrated
> >with trying to kill unwanted DLCIs. If you configure the commands to
> >prevent inverse arp after turning the interface up, you will need to
> >reboot the router to get rid of them. It was a belt & suspenders thing.
> >If no frame inverse-arp does the job by itself, that is great.
> >
> >Dave Swink, CCIE #11678
> >
> >-----Original Message-----
> >From: Packet Man [mailto:ccie2b@hotmail.com]
> >Sent: Friday, March 19, 2004 2:12 PM
> >To: dswink@cisco.com
> >Subject: Lab Tip question?
> >
> >Hey Dave,
> >
> >Thanks for your suggestion. I assume this tip applies to the situation
> >where static f/r map statements are configured and no dynamic mapping is
> >
> >wanted. Yes?
> >
> >If that's the case, I've always found that no frame inverse-arp was
> >sufficient to achieve that result. Therefore, under what circumstances
> >would the "no arp frame-relay" be required?
> >
> >Thanks
> >
> >
> > >From: "Dave Swink (dswink)" <dswink@cisco.com>
> > >Reply-To: <dswink@cisco.com>
> > >To: "'Packet Man'" <ccie2b@hotmail.com>, <lkgilles_ccie@yahoo.com.au>,
> >
> > > <ccielab@groupstudy.com>
> > >Subject: RE: Where's your Lab Tips contribution?
> > >Date: Fri, 19 Mar 2004 13:54:33 -0600
> > >
> > >Configure "no arp frame-relay" and "no frame-relay inverse-arp" before
> > >turning up a frame relay interface.
> > >
> > >Dave Swink, CCIE #11678
> > >
> > >-----Original Message-----
> > >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > >Packet Man
> > >Sent: Friday, March 19, 2004 1:16 PM
> > >To: lkgilles_ccie@yahoo.com.au; ccielab@groupstudy.com
> > >Subject: Re:Where's your Lab Tips contribution?
> > >
> > >OK, so now you gotten some great (my personal opinion) lab tips, what
> > >lab
> > >tip(s) do you have to contribute?
> > >
> > >
> > > >From: Lee Gillespie <lkgilles_ccie@yahoo.com.au>
> > > >To: Packet Man <ccie2b@hotmail.com>
> > > >Subject: Re: Lab Tips
> > > >Date: Fri, 19 Mar 2004 11:00:32 -0800 (PST)
> > > >
> > > >Gotcha, I was just afraid there was some kinda reason it wouldnt
> >work.
> > >A
> > > >lot of labs I have done have the requirment "make the BGP peers as
> > >stable
> > > >as possible" which I assume means peer to the Loopback.
> > > >
> > > >
> > > >
> > > >Packet Man <ccie2b@hotmail.com> wrote:
> > > >Only because it takes more time to configure. And, if it isn't
> > >required,
> > > >why
> > > >spend the time and introduce the possibility of typo's and other
> > >potential
> > > >misconfig's?
> > > >
> > > >
> > > > >From: Lee Gillespie
> > > > >To: Packet Man
> > > > >Subject: Re: Lab Tips
> > > > >Date: Thu, 18 Mar 2004 14:50:42 -0800 (PST)
> > > > >
> > > > >Why dont you use Loopbacks for iBGP peering?
> > > > >
> > > > >Packet Man wrote:Hi all,
> > > > >
> > > > >I've created a "Lab Tips" file of small items - factoids,
> >reminders,
> > > > >suggestions, etc, I tend to forget. This is something I can refer
> >to
> > > > >constantly when I'm doing practice labs or just have a few minutes
> >to
> > > > >spare.
> > > > >
> > > > >Here's a snippet from my Tips file.
> > > > >
> > > > >BGP
> > > > >Hard code router-id
> > > > >Don't use loopbacks for ibgp peering unless explicitly required
> > > > >Look for nei ... next-hop-self requirement especially on F/R hub
> >and
> > > > >ethernets
> > > > >Disable bgp client to client reflection when clients are fully
> >meshed
> > > > >Turn off auto-sum & sync unless explicitly required
> > > > >Reset BGP sessions using hard reset rather than soft reset.
> > > > >Know how to config nei xxxx local-as in combo with RR.
> > > > >Know all ways to config dampening
> > > > >
> > > > >I'm sharing this with GS because I suspect many candidates might
> >also
> > >
> > > >have
> > > > >something like this. And, I thought that with all the great brain
> > >power
> > > > >among GS subscribers we could all help each other by adding tips to
> > >such
> > > >a
> > > > >file.
> > > > >
> > > > >Here's my definition of what makes for a good tip.
> > > > >
> > > > >1) A tip may not in any way violate the NDA
> > > > >2) A good tip should be something that might be easily forgotten
> > >because
> > > > >it's not that often encountered or somehow different from the
> > >ordinary.
> > > >For
> > > > >example, when configuring ISIS over frame relay, don't forget to
> > >enter
> > > >the
> > > > >"fram map clns broadcast" statement. For me, this is a good tip
> > > > >because I personally don't practice ISIS that often and I seem to
> > >almost
> > > > >always forget that command.
> > > > >
> > > > >3) A good tip must be short and clear because the whole idea behind
> > >this
> > > > >file is to provide a quick reminder of various networking facts
> >that
> > >can
> > > > >come in handy during the actual lab.
> > > > >
> > > > >4) A good tip must should not waste time going into the "why" of
> >the
> > >fact
> > > > >or
> > > > >all the various permutations. For that, anyone interested can
> > >research
> > > >the
> > > > >"why" of the fact on their own.
> > > > >
> > > > >5) A good tip for one person might not be at all useful to someone
> > >else.
> > > >We
> > > > >each tend to remember and forget different things. But, for
> >example,
> > >over
> > > > >time the BGP tips section may include 30 items and while I doubt
> >all
> > >30
> > > > >items will be useful to all people, I'm sure that 5 or 10 or 15 of
> > >the
> > > >tips
> > > > >will be useful to many people - just that it won't be the same 5 or
> > >10 or
> > > > >15
> > > > >tips.
> > > > >
> > > > >6) A good tip must be potentially relevant to a ccie R&S candidate.
> > > > >Therefore, I ask that Off Topic comments be submitted elsewhere -
> > >Let's
> > > > >keep
> > > > >posts with the subject "Lab Tips" focus on just that.
> > > > >
> > > > >It's my hope that over time, with the input of a lots of people
> >here,
> > >
> > > >this
> > > > >lab tips file will grow to include tips that cover every topic
> > > >potentially
> > > > >on the R&S lab exam. And, that as a result, we can each add the
> >most
> > > > >personally valuable tips from this group effort to our own lab tips
> > >file.
> > > > >
> > > > >Right now, my tips file has no entries for voice. So, I'd like to
> > >start
> > > >off
> > > > >by asking people to submit their voice config tips. Of course, tips
> > >on
> > > >any
> > > > >potential lab are also welcomed.
> > > > >
> > > > >Here are some other potential tips topics I hope people feel free
> >to
> > > >submit
> > > > >tips to.
> > > > >
> > > > >Redistribution
> > > > >
> > > > >ATM
> > > > >
> > > > >3550
> > > > >
> > > > >OSPF
> > > > >
> > > > >NAT
> > > > >
> > > > >HSRP
> > > > >
> > > > >F/R
> > > > >
> > > > >ISDN
> > > > >
> > > > >QOS
> > > > >
> > > > >Multicast
> > > > >
> > > > >NTP
> > > > >
> > > > >Voice
> > > > >
> > > > >Eigrp
> > > > >
> > > > >Please add your tip under the appropriate heading and send back to
> > >GS.
> > > > >
> > > > >Hope this helps lots of people.
> > > > >
> > > > >Packet Man
> > > > >
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