RE: Appletalk on NBMA

From: brian.m.edwards@xxxxxxxxx
Date: Tue Feb 15 2000 - 12:35:19 GMT-3


   
You need "apple-talk local routing" on the hub router only. It must be enabled
for spoke-to-spoke connectivity. Without it you will still see all the routes i
n all routers tables, but you won't be able to ping spoke to spoke. It is not n
ecessary to put it on the spoke routers. And it is only necessary if the spokes
 are on the same cable-range (i.e. you are not using p-t-p subint's on the hub)
.

-Brian

> -----Original Message-----
> From: pkm@calweb.com [SMTP:pkm@calweb.com]
> Sent: Monday, February 14, 2000 6:40 PM
> To: Joel W. Ekis
> Cc: Khurram Khani; ccielab@groupstudy.com
> Subject: Re: Appletalk on NBMA
>
> You are correct. I have played with appletalk many times and I had to reboot
on a few occasions. Especially, when I was configuring access-lists. Shutting d
own the interface and re-enabling the interfaces did not helped. Not to mention
 that the NO APPLETALK ROUTING will remove all your AT EIGRPstatements. Also, t
he command Appletalk local-routing is not necessary. I have the same configs wi
thout this
> statement. It works fine for me. Also, I found out thru my experiments that A
ppletalk route-redistribution needed to be added to each router. Caslow and som
e other books mentioned the fact that when EIGRP for Appletalk is enabled, this
 command is automatic. That was not the case at all for me. By the way, try the
 same configs with Appletalk tunneling. Configuring Cisco routers for Bridging,
 DLSW+ & Desktop
> Protocols have similar configs. It is the best book to prepare for CCIE deskt
op protocols (IPX, AT, etc). This is the book I used to learn how to make Apple
talk, IPX, and IP with Frame Relay and Split Horizon work. The logic is to disa
ble split-horizon for DVRP when you a NBMA (like ATM, FR) and all physical inte
rfaces or multipoint sub-interfaces. Point-to-point subinterfaces overcome the
issues with NBMA
> and split-horizon.
>
> Sincerely,
>
> Phillip Moulay
>
> Joel W. Ekis wrote:
>
> > You just learned a very valuable CCIE Lab lesson. AppleTalk is the worst p
rotocol to deal with in the lab. Any time you make changes, you are almost req
uired to reboot all the routers to get it to work. This is really bad when you
 have 2500 routers which boot slow. Nothing is worse than sitting in the lab w
aiting for the routers to reload, just to see if your configuration is going to
 work this time.
> >
> > Joel
> >
> > At 10:45 PM 2/14/2000 -0800, Khurram Khani wrote:
> > >I rebooted all the 3 routers and it works ????? Save me.!
> > >
> > >----- Original Message -----
> > >From: Khurram Khani <ajmal@emirates.net.ae>
> > >To: <ccielab@groupstudy.com>
> > >Sent: Monday, February 14, 2000 9:25 PM
> > >Subject: Appletalk on NBMA
> > >
> > >
> > >> Hello.
> > >>
> > >> Problem, I am not getting Router 1 Ethernet 0 route advertisment in
> > >> Router2 and Router 3. Router 1 is advertsing cable-range 1-10 on
> > >> Framerelay cloud but other Routers not receiving it ??
> > >>
> > >> Router 2 ---> HUB (I have put 'no appletalk eigrp-splithorizon and
> > >> 'appletalk local-routing' instruction)
> > >>
> > >> Router 1 ---> Spoke
> > >> Router 3 ---> Spoke
> > >>
> > >>
> > >> Router 1 has one "eth 0" and one se2.1 point-to-point
> > >> Router 2 has one "eth 0" and one se2.1 multipoint
> > >> Router 3 has one "eth 0" and one se2.1 point-to-point
> > >>
> > >>
> > >> Configurations
> > >> ----
> > >>
> > >> router 1
> > >>
> > >> appletalk routing eigrp 2
> > >> appletalk route-redistribution
> > >> appletalk local-routing
> > >>
> > >> int eth 0
> > >> appletalk cable-range 1-10 1.1
> > >> appletalk zone Router1Ethernet
> > >> no shut
> > >>
> > >> int se2.1 point-to-point
> > >> appletalk cable-range 100-100 100.2
> > >> appletalk zone FrameRelay
> > >> appletalk protocol ei
> > >> no appletalk protocol rtmp
> > >>
> > >>
> > >> Router 2
> > >> ----------
> > >>
> > >> appletalk routing eigrp 1
> > >> appletalk route-redistribution>
> > >> appletalk local-routing
> > >>
> > >> int eth 0
> > >> appletalk cable-range 11-20 11.1
> > >> appletalk zone Router2Ethernet
> > >> no shut
> > >>
> > >> int se2.1 multipoint
> > >> appletalk cable-range 100-100 100.1
> > >> appletalk zone FrameRelay
> > >> frame-relay map apple 100.2 101 bro
> > >> frame-relay map apple 100.3 104 bro
> > >> appletalk protocol ei
> > >> no appletalk protocol rtmp
> > >> no appletalk eigrp-splithorizon
> > >>
> > >> Router 3
> > >> --------
> > >> appletalk routing eigrp 3
> > >> appletalk route-redistribution
> > >> appletalk local-routing
> > >>
> > >> int eth 0
> > >> appletalk cable-range 30-30 30.1
> > >> appletalk zone Router3Ethernet
> > >> no shut
> > >>
> > >> int se2.1 point-to-point
> > >> appletalk cable-range 100-100 100.3
> > >> appletalk zone FrameRelay
> > >> appletalk protocol ei
> > >> no appletalk protocol rtmp
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >> router1#
> > >> router1#
> > >>
> > >> (Notice 1-10 is advertised on Se2.1 but other routers are not receving i
t)
> > >> ---
> > >>
> > >> 02:44:42: AT: atigrp2_advertise_request, advertising 1-10 out Serial2.1
> > >>
> > >> 02:44:42: AT: atigrp2_advertise_request, advertising 100-100 out Serial2
.1
> > >> 02:44:44: AT: atigrp2_advertise_request, advertising 1-10 out Serial2.1
> > >> 02:44:44: AT: atigrp2_advertise_request, advertising 100-100 out Serial2
.1
> > >> 02:44:47: AT: atigrp2_rtdelete, deleting 100-100 from 100.1 on Serial2.1
> > >> 02:44:47: AT: atigrp2_rtupdate, metric 23284736 succ 1 for 100-100, is:
> > >> 100.1, n
> > >> h: 100.1, idb: Serial2.1
> > >> 02:44:47: AT: atigrp2_rtdelete, deleting 30-30 from 100.1 on Serial2.1
> > >> 02:44:47: AT: atigrp2_rtupdate, metric 23310336 succ 0 for 30-30, is:
> > >100.1,
> > >> nh:
> > >> 100.1, idb: Serial2.1
> > >> 02:44:47: AT: atigrp2_advertise_request, advertising 1-10 out Serial2.1
> > >> 02:44:47: AT: atigrp2_advertise_request, advertising 100-100 out Serial2
.1
> > >>
> > >>
> > >>
> > >> router2(config)#end
> > >> router2#
> > >> 02:51:19: %SYS-5-CONFIG_I: Configured from console by console
> > >> router2#sh apple ro
> > >> Codes: R - RTMP derived, E - EIGRP derived, C - connected, A - AURP
> > >> S - static P - proxy
> > >> 3 routes in internet
> > >>
> > >> The first zone listed for each entry is its default (primary) zone.
> > >>
> > >> C Net 11-20 directly connected, Ethernet0, zone Router2Ethernet
> > >> E Net 30-30 [1/G] via 100.3, 1171 sec, Serial2.1, zone Router3Ethernet
> > >> C Net 100-100 directly connected, Serial2.1, zone FrameRelay
> > >> router2#
> > >>
> > >> router3#
> > >> router3#sh apple ro
> > >> Codes: R - RTMP derived, E - EIGRP derived, C - connected, A - AURP
> > >> S - static P - proxy
> > >> 3 routes in internet
> > >>
> > >> The first zone listed for each entry is its default (primary) zone.
> > >>
> > >> E Net 11-20 [1/G] via 100.1, 1185 sec, Serial2.1, zone Router2Ethernet
> > >> C Net 30-30 directly connected, Ethernet0, zone Router3Ethernet
> > >> C Net 100-100 directly connected, Serial2.1, zone FrameRelay
> > >> router3#
> > >>
> > >>



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