From: Jason Sinclair (sinclairj@powertel.com.au)
Date: Wed Jan 15 2003 - 00:55:49 GMT-3
Hunt,
They don't all exactly work the same as follows:
1st Scenario: You have defined a PVC on the main interface and then
statically mapped your layer 3 address to your layer 2 PVC. The interface
will assume the default encaps of aal5snap. Only newer versions of IOS
support this format. (I think 12.0 and above?)
2nd Scenario: If you chose aal5snap then this is the same as the first. You
have statically mapped the 3 to 2. This is the "old" way of configuring
this.
3rd Scenario: You have configured this on a sub-if and have relied on ATM
INARP to resolve your 3 to 2 mapping.
So I would say that these are not exactly the same.
Regards,
Jason Sinclair CCIE #9100
Manager, Network Control Centre
POWERTEL
55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
email: sinclairj@powertel.com.au
-----Original Message-----
From: Hunt Lee [mailto:huntl@webcentral.com.au]
Sent: Wednesday, 15 January 2003 13:52
To: 'Cary Anderson'; Joe Martin; CCIE GroupStudy
Subject: RE: Help Help!!! ATM question
Hi Cary,
Thanks so much for your example configs. I am just wondering whether there
is any difference between the following 3 PVC configs. Do they achieve
EXACTLY the same thing?
Regards,
Lee
Int ATM 0/0/0
(config-if)# ip address 172.10.10.1 255.255.255.0
(config-if)# pvc 0/222
(config-if-atm-vc)# protocol ip 172.10.10.2 broadcast
OR
int ATM 0/0/0
(config-if)# ip address 172.10.10.1 255.255.255.0
(config-if)# atm pvc <1> 0 222 [aal5mux ip | aal5snap]
(config-if)# map-group <ListA>
(config)# map-list <ListA>
(config-map-list)# ip 172.10.10.2 atm-vc <1> broadcast
OR
int ATM 0/0/0
(config-if)# no ip address
(config-if)# no atm ilmi-keepalive
interface ATM0/0/0.1 point-to-point
(config-subif)# ip address 172.10.10.1 255.255.255.0
(config-subif)# pvc 0/222
-----Original Message-----
From: Cary Anderson [mailto:caryande@cisco.com]
Sent: Wednesday, 15 January 2003 7:20 AM
To: Joe Martin; CCIE GroupStudy
Subject: RE: Help Help!!! ATM question
Check out the following
PVC:
Int ATM 0/0
Ip address 10.10.10.1 255.255.255.0
Pvc 0/100
Protocol ip 10.10.10.2 br
PVC with PVC discovery:
Int ATM 0/0
Ip address 10.10.10.1 255.255.255.0
Pvc 0/16 ilmi
Atm ilmi-pvc-discovery
Or
Int ATM 0/0
No ip add
Pvc 0/16 ilmi
Atm ilmi-pvc-discovery subinterface
Int ATM 0/0. mu
Ip address 10.10.10.1 255.255.255.0
PVC with aal5snap:
Int ATM 0/0
Ip address 10.10.10.1 255.255.255.0
Ipx network AA
Pvc 0/100
Protocol ip 10.10.10.2 br
Protocol ipx AA.0002.0002.0002 br
PVC with aal5mux:
Int ATM 0/0
Ip address 10.10.10.1 255.255.255.0
Ipx network AA
Pvc 0/100
Protocol ip 10.10.10.2 br
Encapsulation aal5mux ip
Pvc 0/101
Protocol ipx AA.0002.0002.0002 br
Encapsulation aal5mux ipx
PVC with OAM:
Int ATM 0/0
Ip address 10.10.10.1 255.255.255.0
Pvc 0/100
Oam-pvc manage
Protocol ip 10.10.10.2 br
PVC trap support:
Snmp-server enable traps atm pvc interval 10 fail-interval 60
Int ATM 0/0
Ip address 10.10.10.1 255.255.255.0
Pvc 0/100
Oam-pvc manage
Protocol ip 10.10.10.2 br
SVC:
NSAP address: 20 bytes (13+6+1)
Prefix: 47.0091.8100.0000.1234.4567.8901
ESI address: 1234.4567.8901.00
SVC without ILMI:
Int ATM 0/0
Ip add 10.10.10.1 255.255.255.0
Pvc 0/5 qsaal
Atm nsap-address 47.00918100000012345678901.1111.1111.1111.00
Svc svc-1 nsap 47.00918100000012345678902.2222.2222.2222.00
Protocol ip 10.10.10.2 br
SVC with ILMI:
interface ATM2/0
ip address 172.168.2.13 255.255.255.0
atm esi-address 111111111111.11
pvc 0/16 ilmi
pvc 0/5 qsaal
svc toR14 nsap 47.0091810000000060472C3201.222222222222.22
protocol ip 172.168.2.14 broadcast
Classical IP:
CLIP with PVC:
Int ATM 0/0
Ip add 10.10.10.1 255.255.255.0
Pvc 0/100
Inarp 5
CLIP with SVC and without ILMI:
Client:
Int ATM 0/0
Ip add 10.10.10.1 255.255.255.0
Pvc 0/5 qsaal
Atm nsap-address 47.00918100000012345678901.1111.1111.1111.00
Atm arp-server 47.00918100000012345678902.2222.2222.2222.00
Server:
Int ATM 0/0
Ip add 10.10.10.1 255.255.255.0
Pvc 0/5 qsaal
Atm nsap-address 47.00918100000012345678902.2222.2222.2222.00
Atm arp-server self
CLIP with SVC and ILMI:
Client:
Int ATM 0/0
Ip add 10.10.10.1 255.255.255.0
Pvc 0/5 qsaal
Pvc 0/16 ilmi
Atm esi-address 1111.1111.1111.00
Atm arp-server nsap 47.00918100000012345678902.2222.2222.2222.00
Server:
Int ATM 0/0
Ip add 10.10.10.1 255.255.255.0
Pvc 0/5 qsaal
Pvc 0/16 ilmi
Atm esi-address 2222.2222.2222.00
Atm arp-server self
-----Original Message-----
From: Joe Martin [mailto:jmartin@capitalpremium.net]
Sent: Tuesday, January 14, 2003 11:07 AM
To: CCIE GroupStudy
Subject: RE: Help Help!!! ATM question
Anyone,
Can you verify or correct the following statements? I think this is how it
works with ATM (without CLIP). Please correct me if I am wrong.
If configuring a PVC I must map L3 address to VCD.
If configuring an SVC with ILMI, I must specify local ESI and map L3 address
to remote nsap address.
If configuring an SVC without ILMI, I must specify local nsap address and
map L3 address to remote nsap address.
TIA,
Joe Martin
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Fabrice Bobes
Sent: Tuesday, January 14, 2003 9:46 AM
To: 'Hunt Lee'
Cc: ccielab@groupstudy.com
Subject: RE: Help Help!!! ATM question
Lee,
No, you don't need it.
This SVC configuration will work without ilmi:
Int ATM 2/0
Ip add 10.10.10.2 255.255.255.0
Pvc 0/5 qsaal
Atm nsap-address 47.009181000000123456789012.1414.1414.1414.00
Svc svc-1 nsap 47.009181000000123456789012.1313.1313.1313.00
Protocol ip 10.10.10.1 br
Regards,
Fabrice
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Hunt
Lee
Sent: Monday, January 13, 2003 10:47 PM
To: 'ccielab@groupstudy.com'
Subject: Help Help!!! ATM question
For ATM SVCs (assuming I'm not using Classical IP), is it true that
regardless of whether I am using the ESI address OR NSAP address, I still
need to enable ILMI by 'pvc 0/16 ilmi' command?
Regards,
Lee
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