From: Narbik Kocharians (narbikk@gmail.com)
Date: Thu Jul 06 2006 - 19:25:31 ART
Wayne how did Narbik get his assss spanked? because brian McGahan said that
it was not a valid design? do you read these posts?
On 7/6/06, Narbik Kocharians <narbikk@gmail.com> wrote:
>
> Brian, i will never do that, but i will take it up with you offline. It
> was a good discussion. we won't continue (but isdn is a multipoint) i am
> even sick of this subject, you were looking at it from your angle and i was
> looking at it from my angel and we were both right.
>
> Narbik Kocharians
> CCIE# 12410 (R&S, SP, Security)
> CCSI# 30832
> Network Learning, Inc. (CCIE class Instructor)
> www.ccbootcamp.com (CCIE Training)
>
>
>
>
>
>
> On 7/6/06, Brian Dennis <bdennis@internetworkexpert.com> wrote:
>
> > Narbik,
> I think now you are seeing my point. It's either for on-demand
> circiuts or P2P links only. My reply to the original poster was in regards
> to why multipoint links (Frame-Relay, Ethernet, etc) are not
> supported. Since we all agree now we can stop beating the poor horse to
> death.
>
> Also remember that we are all here to learn and help each other so
> don't ever take anything personal ;-)
>
> HTH,
>
> Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
>
>
> From: Narbik Kocharians [mailto:narbikk@gmail.com]
> Sent: Thursday, July 06, 2006 1:36 PM
> To: Sami
> Cc: wayne@ipexpert.com ; Brian Dennis; Brian McGahan;
> ccielab@groupstudy.com; smorris@ipexpert.com
> Subject: Re: RIP triggered
>
> Router(config)#int bri0/0
> Router(config-if)#ip addr 1.1.1.1 255.0.0.0
> Router(config-if)#ip rip tr
> Router(config-if)#ip rip triggered
>
> Mr. Brian McGahan, I think this is a multipoint, don't you?
> But I still say thatCisco implemented this to suppress the updates on slow
> links just like the url from Cisco states.
>
> I kinda agree with Scott, because what he says is that we are looking at
> this from different angles, and maybe he is correct. The only reason I
> disagree is that it works on some Multipoint interfaces and does not work
on
> others.
>
> interface BRI0/0
> ip address 1.1.1.2 255.0.0.0
> ip rip triggered
> dialer map ip 1.1.1.1 broadcast 1111031
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 11110410101
> isdn spid2 11110420101
>
> Do you guys see the "ip rip triggered" command??????????????????????????
>
> But I truly believe that we have totally killed the subject. By the way
> Wayne when you took your CCIE lab was it three days or four days? (Just
> kidding).
>
>
> Narbik Kocharians
> CCIE# 12410 (R&S, SP, Security)
> CCSI# 30832
> Network Learning, Inc. (CCIE class Instructor)
> www.ccbootcamp.com (CCIE Training)
>
> On 7/6/06, Sami < sy1977@gmail.com> wrote:
> Guys,
>
> I didn't know that a small RIP triggred command will trigger such a huge
> discussion which will involve all the so called CCIE Guru's.
>
> Why I asked this IE workbook VOL2 lab 5 section 3.5 ask for this command
> on a ethernet interface because both the routers are connected with other
on
> ethernet interface.I couldn't find this command on ethernet interface
> hence I fired this question to group. IE team please review your VOL2labs ,
> I found lot of mistakes in VOL2 workbook which are notin syncwith
> labtopology.
>
>
> Narbik , Scott, Brians's thank you very much.
>
> -Sami
>
>
>
>
>
> On 7/6/06, Wayne Lawson <wayne@ipexpert.com > wrote:
> Geeesh.....When I took the lab (back in the good ol' days) RIP was only a
> few points -grin-, thus - not that big of a deal....Now we've got 2 triple
> IE's, a quad IE and another very intelligent engineer bickering about
> RIP.....I guess the lab's getting harder! -huge grin-
>
> Wayne A. Lawson II
> Founder, President & CCIE #5244 - IPexpert, Inc.
> "When Will You Be an IP Expert?!"
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto: nobody@groupstudy.com] On Behalf Of
> Brian Dennis
> Sent: Thursday, July 06, 2006 1:46 PM
> To: Narbik Kocharians; Brian McGahan
> Cc: Sami; ccielab@groupstudy.com
> Subject: RE: RIP triggered
>
> Did you try putting an IP address on the physical interface or multipoint
> subinterface before testing?See below:
>
> Rack1R1(config)#int s0/0
> Rack1R1(config-if)#encap frame-relay
> Rack1R1(config-if)#ip rip triggeredb no problem since there isnbt an IP
>
> address assigned
> Rack1R1(config-if)#ip add 167.1.1.1 255.255.255.0
> Rack1R1(config-if)#ip rip triggered
> RIP: Serial0/0 is not a point-to-point interface.
>
> Rack1R1(config-if)# int s0/0.2 multipoint
> Rack1R1(config-subif)#ip rip triggered b no problem since there isnbt
> an
> IP address assigned
> Rack1R1(config-subif)#ip address 10.10.10.1 255.255.255.0
> Rack1R1(config-subif)#ip rip triggered
> RIP: Serial0/0.2 is not a point-to-point interface.
>
>
> HTH,
>
> Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
>
>
> From: Narbik Kocharians [mailto:narbikk@gmail.com ]
> Sent: Thursday, July 06, 2006 10:33 AM
> To: Brian McGahan
> Cc: Brian Dennis; Sami; ccielab@groupstudy.com
> Subject: Re: RIP triggered
>
> There are someB vendors that implement RFCs and some that don't, Cisco
> decided to implement the RFC for the reason i mentioned and thats why its
> available on WAN and not LAN interfaces.
> You mean that the "ip rip triggered"B command does not suppress the
> updates
> so it does not consume BD? I guess this guys in CiscoB did not test it as
> well?
> B
>
>
http://www.cisco.com/en/US/products/sw/iosswrel/ps1830/products_feature_guid
> e09186a008008746f.html
> B
> By the way you stated thatB this command isB not supported on multipoint,B
> i
> have to totally disagree with that as well. When you configure frame-relay
> directly under the physical interface, isn't that considered a multipoint?
> Therefore, it's not an issue of P2P Vs Multipoint, itsB LAN versus WAN.
> B
> Narbik Kocharians
> CCIE# 12410 (R&S, SP, Security)
> CCSI# 30832
> Network Learning, Inc. (CCIE class Instructor)
> www.ccbootcamp.com (CCIE Training)
>
> B
> On 7/6/06, Brian McGahan < bmcgahan@internetworkexpert.com> wrote:
> B B B B B BTriggered extensions to RIP are not a Cisco specific feature;
>
> they are defined in RFC 2091.
>
> http://www.internetworkexpert.com/rfc/index.php?rfc=2091
>
> B B B B B BIf you read through the RFC and tested the behavior you would
>
> see that your explanation is not correct.
>
> B B B B B BRoutes in the RIP database learned on an interface running
>
> triggered extensions behave like DNA LSAs in the OSPF database.B B In
> other words the invalid timer does not apply to them.B B Instead RIP
> relies on the point-to-point nature of the WAN link to invalidate
> installed updates when the link goes down.
>
> B B B B B BAs Brian pointed out this configuration is not valid on
>
> multipoint interfaces because the layer 1 status of the interface does
> not necessarily reflect end-to-end reachability on the segment, i.e . one
> side of the link can be up while the other side is down.
>
>
>
> HTH,
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
> Toll Free: 877-224-8987 x 705
> Outside US: 775-826-4344 x 705
> 24/7 Support: http://forum.internetworkexpert.com
> Live Chat: http://www.internetworkexpert.com/chat/
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Narbik Kocharians
> > Sent: Thursday, July 06, 2006 11:47 AM
> > To: Brian Dennis
> > Cc: Sami; ccielab@groupstudy.com
> > Subject: Re: RIP triggered
> >
> > RIP does not care if the other end point is down or not, if RIP does
> not
> > receive the updates from a router on a point-to-point or multipoint
> > interface, it has two timers that it will use to handle that
> situation,
> > invalidation timer and Flush timer.
> >
> > There are two reasons that Cisco came up with this extension:
> >
> > The periodic updates (every 30 seconds be default) can keep the
> circuit
> > up,
> > and the second reason is to cut down on the number of periodic updates
> > even
> > on a Point-to-point connections.
> > Its because of these two points that the command "ip rip triggered" is
> > only
> > available on the wan interfaces and it has nothing to do with neighbor
> > down
> > detection, it has provisions for that already. I am sorry but I have
> to
> > disagree.
> >
> > Narbik Kocharians
> > CCIE# 12410 (R&S, SP, Security)
> > CCSI# 30832
> > Network Learning, Inc. (CCIE class Instructor)
> > www.ccbootcamp.com (CCIE Training)
> >
> >
> > On 7/6/06, Brian Dennis <bdennis@internetworkexpert.com > wrote:
> > >
> > > Think about it like this.B B If you run RIP triggered across a P2P
> serial
> > > link and the remote end goes down, your local interface should also
> go
> > > down.B B This will allow your local router to detect that the remote
> > > router's routes should be removed from the routing table.B B Now if
> it's a
> > > multipoint interface like Ethernet (more than one endpoint possible)
> > > then if the remote router goes down, the Ethernet interface will not
> > > normally go down assuming a hub or switch is being used.B B This means
> > > that even though the remote router is down, its routes will not be
> > > removed from your local router's routing table since you are not
> > > expecting periodic updates and you can not determine based on the
> > > interface state if the remote router is down.
> > >
> > > HTH,
> > >
> > > Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> > > bdennis@internetworkexpert.com
> > >
> > > Internetwork Expert, Inc.
> > > http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
> > > Toll Free: 877-224-8987
> > > Direct: 775-745-6404 (Outside the US and Canada)
> > >
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto: nobody@groupstudy.com] On Behalf
> Of
> > > Sami
> > > Sent: Thursday, July 06, 2006 4:56 AM
> > > To: ccielab@groupstudy.com
> > > Subject: RIP triggered
> > >
> > > Group,
> > >
> > > ip rip triggered command is not under ethernet interface ? is there
> any
> > > speific reason for not having it ?
> > >
> > > R4(config)#int fastEthernet 0/0
> > > R4(config-if)#ip rip ?
> > > advertiseB B B B B BSpecify update interval
> > > authenticationB B Authentication control
> > > receiveB B B B B B B Badvertisement reception
>
> > > sendB B B B B B B B B B B B advertisement transmission
> > > v2-broadcastB B B B send ip broadcast v2 update
> > >
> > > R4(config)#int s0/0/0
> > >
> > > R4(config-if)#ip rip ?
> > > advertiseB B B B B BSpecify update interval
> > > authenticationB B Authentication control
> > > receiveB B B B B B B Badvertisement reception
>
> > > sendB B B B B B B B B B B B advertisement transmission
> > > triggeredB B B B B Benable rfc2091 triggered rip
>
> > > v2-broadcastB B B B send ip broadcast v2 update
> > >
> > >
> _______________________________________________________________________
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> >
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