From: Anthony Pace (anthonypace@xxxxxxxxxxx)
Date: Thu Jul 25 2002 - 16:29:31 GMT-3
So what is it in Split-Horizons which causes the routers not to send
each other routes when defined on phisical interfaces? They still would
never need to send an advertisemnet out the same interface they learned
it from. I saw a debug message where they would see their own
advertisment and ignore it. (it scrolled off the screen or I would have
printed it) Also, after a while they never sent advertisments at all.
That why I was thinking maybe the SVC tore itself down somehow, but an
"interesting" ping could wake it up.
Anthony Pace
Remeber Split-Horizon behaves the same on ATM as it does on Frame Relay
Johan
-----Original Message-----
From: Anthony Pace [mailto:anthonypace@fastmail.fm]
Sent: 24 July 2002 08:51
To: ccielab@groupstudy.com
Subject: ATM SVC prefering a subinterface over a phisical
I have had this happen a couple of times and am wondering if it there is someth
ing I am missing. When I set up an ATM SVC on a main interface it works fine an
d pings work but I notice, over time, distance vector routing protocols stop go
ing accross the link. When I defince the circuit as a subinterface it works fin
e. Here are the configs. Is there something which would cause the SCV to close,
over time?
Anthony Pace
R2 ATM on Main Int
interface ATM1/0
ip address 10.12.0.2 255.255.0.0
atm uni-version 3.1
atm esi-address 222222222222.00
no atm ilmi-keepalive
atm arp-server nsap 47.009181000000000532FC2901.111111111111.00
pvc 0/5 qsaal
!
pvc 0/16 ilmi
!
R1 ATM on Main Int
interface ATM1/0
ip address 10.12.0.1 255.255.0.0
atm uni-version 3.1
atm esi-address 111111111111.00
no atm ilmi-keepalive
atm arp-server self
pvc 0/5 qsaal
!
pvc 0/16 ilmi
-------------------------------------------------------------------------------
----------------
NOW THE SAME CIRCUIT DEFINED ON SUB INTERFACE
-------------------------------------------------------------------------------
---------------------------------------
R2
interface ATM1/0
no ip address
atm uni-version 3.1
no atm ilmi-keepalive
pvc 0/5 qsaal
!
pvc 0/16 ilmi
!
!
interface ATM1/0.2 multipoint
ip address 10.12.0.2 255.255.0.0
atm esi-address 222222222222.00
atm arp-server nsap 47.009181000000000532FC2901.111111111111.00
!
R1
interface ATM1/0
no ip address
atm uni-version 3.1
no atm ilmi-keepalive
pvc 0/5 qsaal
!
pvc 0/16 ilmi
!
!
interface ATM1/0.2 multipoint
ip address 10.12.0.1 255.255.0.0
atm esi-address 111111111111.00
atm arp-server self
-- Anthony Pace anthonypace@fastmail.fm -- The fastest email on the Internet! http://fastmail.fm - Choose from over 50 domains or use your own
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