From: james.patterson@xxxxxxxxxxxxxx
Date: Fri Apr 27 2001 - 03:28:02 GMT-3
Hi Pat,
RFC 1577 Classical IP lets you run resolve IP to NSAP addresses with ATM
ARP, so you can have SVCs from one ATM IP device to another, without having
any PVCs configured on the switch. In fact all you should *need* on the
switch is the switch's own NSAP address.
ESI address. My understanding is that it is the last 7 octets of the ATM
NSAP address.If you use ESI addresses you will inherit the first part from
the switch, and your ESI will appear at the back. You have to have one or
both of the "well known" PVCs configured.... ILMI and QSAAL (0,16 and
0,5)... I say or one or both because I am not really sure [help ?]
Anyway, recently I had an opportunity to "play" with some test kit. I built
a simple network with a LS1010 between 2x 2640 routers with OC-3 cards.
I took a look at the switch, and coppied it's NSAP address, which in my
case was something like 47.0091810000000030809C1F01.<something>.00
Then I did this.....
R1
!
interface ATM1/0
no ip address
no ip directed-broadcast
atm pvc 5 0 5 qsaal
atm pvc 16 0 16 ilmi
!
interface ATM1/0.3 multipoint
description RFC1577 with ARP and SVCs
ip address 13.0.0.1 255.0.0.0
no ip directed-broadcast
atm esi-address 000000001111.03
atm arp-server nsap 47.0091810000000030809C1F01.000000002222.03
!
R2
!
interface ATM1/0
no ip address
no ip directed-broadcast
atm pvc 5 0 5 qsaal
atm pvc 16 0 16 ilmi
!
interface ATM1/0.3 multipoint
description RFC1577 ARP server
ip address 13.0.0.2 255.0.0.0
no ip directed-broadcast
atm esi-address 000000002222.03
atm arp-server self
!
.....and I could ping and telnet across the link. A "show atm svc" I think
showed that there was indeed svcs in use.
I am not sure if it is "normal" to have the ARP server on the other end of
the link, but it seemed to work. I am sure that a better solution is to run
the ARP server on the LS1010, but from what I hear we don't touch the ATM
switch, just the edge devices.
[group] Please correct me .... if/where I am wrong.
Also, does anyone know how to get the NSAP address by looking at the router
(not the switch) ?
HTH
Regards
James
"Pat Bodin" <pbodin@cisco.com>@groupstudy.com on 27/04/2001 01:59:43
Please respond to "Pat Bodin" <pbodin@cisco.com>
Sent by: nobody@groupstudy.com
To: <ccielab@groupstudy.com>
cc: (bcc: Mail Administrator/Newcastle/Computer Systems Australia);
(bcc: )
Subject: ATM-CLIP
I'm working with CLIP on a LS1010 and 2 routers. I have completed ATM 1577
with pvcs and have no problem with config below.
r1
interface ATM0
ip address 10.1.1.1 255.255.255.0
pvc 2/32
protocol ip 10.1.1.2
ubr+ 100000 50000
ls1010
interface atm0/1/1
atm pvc 2 32 interface atm 0/1/0 3 33
r2
interface ATM0
ip address 10.1.1.2 255.255.255.0
pvc 3/33
protocol ip 10.1.1.1
ubr+ 100000 50000
However, when I tried CLIP. I don't know exactly what I have to have on
the
LS1010. Can someone tell me the exact commands to put on that switch to
get
this to work? Also, where do I get the atm esi-add?
Example config for routers
interface ATM0
ip address 10.1.1.1 255.255.255.0
no ip directed-broadcast
atm esi-address 111111111111.03
nsap arp address 47.0091.8100.0000.0060.3e5b.6201.0060.3e5b.6201.00
atm ilmi-keepalive
pvc 0/5 qsaal
pvc 0/16 ilmi
Any help you can give me is greatly appreciated!
|| || Pat Bodin
.||. .||. Systems Engineer
.||||. .||||. pbodin@cisco.com
.:||||||||:.:||||||||:. ph: 678-352-2905
C i s c o S y s t e m s fax: 678-352-2936
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