From: Mike McSpedon (Mike@xxxxxxxx)
Date: Thu Dec 30 1999 - 21:52:37 GMT-3
Scott,
See my comments in line.
Thanks for your comments!
-Mike
At 04:48 PM 12/30/99 -0500, Scott F. Robohn wrote:
>Mike,
>
>Frankly, I've never tried to get SVCs to work without ILMI.
>What prompted you to try this? Curiosity or a hot tip that
>it might be on the exam? ;)
Curiosity plain and simple, no hot tip or anything like that. I saw a
sample config on CCO and wanted to configure it for real. The doc is at:
http://www.cisco.com/warp/public/121/13.html
I followed it to the letter on the routers (the difference being no 'atm
pvc 16 0 16 ilmi' on the routers). I remembered to add the static atm
routes for AA0000 and BB0000 to the lighstream as per the above doc, but no
had no luck at all making it work. Turning on ILMI was the only thing that
made it work. Perhaps I was missing 'no ilmi-enable' on the relevant
LS1010 interfaces, and this was the problem. Unfortunately, I don't have
access to the gear or I'd check it out.
>
>I'm not exactly sure what's going on here, but here are some
>thoughts.
>
>(1) Check your text graphic below. You (allegedly) have
>both r13 and r14 plugged into a0/1/1 on the ls1010. I
>assume that r14 is really plugged into a0/1/0.
Yes, my graphic is wrong. r14 is connected to atm0/1/0, as the LS1010
config shows.
>(2) If you have 'atm pvc 16 0 16 ilmi' configured, ILMI is
>enabled. 'no atm ilmi-keepalive' disables ILMI keepalives,
>but it does not disable ILMI. FYI, I think this is disabled
>by default.
Yes, ILMI is disabled by default, and in the sample config on CCO it is
also disabled.
>(3) Notice the output from 'show atm ilmi-stat': you are
>getting a valid NSAP prefix from the switch
>(47.0091.8100.0000....). The AA and BB addresses are not
>showing up.
>
>(4) You're learning OSPF routes over the atm interfaces.
>What does 'show atm vc' tell you, both on the routers and
>the 1010?
Didn't save output from 'sh atm vc' unfortunately.
>(5) The only 'registration' that I'm aware of on the ls1010
>would be where you hard-coded ATM routes for your AA and BB
>prefixes. Address registration via ILMI is on by default.
>Try 'show atm route' on the ls1010 to make sure those AA and
>BB addresses are getting in there.
>(6) To really turn ILMI off, delete atm pvc 0 16 from your
>routers and do 'no atm ilmi-enable' on the relevant ls1010
>interfaces. In many cases in ATM where one side of a
>connection is configured for option X and the other end is
>configured for not-X, things just don't work right.
>HTH,
>Scott
>
>Mike McSpedon wrote:
>>
>> Folks,
>>
>> I have been practicing configuring ATM in preparation for my CCIE lab test
>> on 2/1-2/2. The one thing I'm still having some trouble with is
>> configuring an SVC with no ILMI (with ILMI is no problem). The network is
>> very simple, two 3640s each with an OC3 card and an LS1010 between them.
>>
>> r13 Atm0/0<===>ATM0/1/1LS1010ATM0/1/1<===>ATM0/0 r14
>>
>> In a nutshell I found that no matter what I did, I needed to turn on ILMI
>> to make it work. The configs are below. Note that the ILMI PVC is
>> configured. Was I supposed to manually register the router ATM addresses
>> with the switch? If so how? Any help will be appreciated.
>>
>> TIA!
>> -Mike
>> ==================
>>
>> hostname r13
>> !
>> interface Loopback0
>> ip address 140.10.255.13 255.255.255.255
>> !
>> interface ATM0/0
>> ip address 140.10.100.13 255.255.255.0
>> map-group SVC
>> atm nsap-address AA.000000000000000000000000.000100010001.00
>> atm uni-version 4.0
>> atm pvc 5 0 5 qsaal
>> atm pvc 16 0 16 ilmi
>> no atm ilmi-keepalive
>> atm arp-server self
>> !
>> interface FastEthernet1/0
>> ip address 140.10.13.1 255.255.255.0
>> !
>> router ospf 13
>> redistribute connected subnets
>> network 140.10.13.0 0.0.0.255 area 9
>> network 140.10.100.0 0.0.0.255 area 0
>> neighbor 140.10.100.14 priority 1
>> !
>> map-list SVC
>> ip 140.10.100.14 atm-nsap BB.000000000000000000000000.000200020002.00
>> broadcast
>> !
>> end
>>
>> r13#sh ip ro
>>
>> Gateway of last resort is not set
>>
>> 140.10.0.0/16 is variably subnetted, 5 subnets, 2 masks
>> C 140.10.255.13/32 is directly connected, Loopback0
>> O E2 140.10.255.14/32 [110/20] via 140.10.100.14, ATM0/0
>> O IA 140.10.14.0/24 [110/2] via 140.10.100.14, ATM0/0
>> C 140.10.13.0/24 is directly connected, FastEthernet1/0
>> C 140.10.100.0/24 is directly connected, ATM0/0
>>
>> r13#sh atm ilmi-stat
>>
>> Interface : ATM0/0 Interface Type : Private UNI (User-side)
>> ILMI VCC : (0, 16) ILMI Keepalive : Disabled
>> ILMI State: UpAndNormal
>> Peer IP Addr: 0.0.0.0 Peer IF Name: ATM0/1/1
>> Peer MaxVPIbits: 8 Peer MaxVCIbits: 14
>> Active Prefix(s) :
>> 47.0091.8100.0000.00d0.baf3.3b01
>>
>> hostname r14
>> !
>> interface Loopback0
>> ip address 140.10.255.14 255.255.255.255
>> !
>> interface ATM0/0
>> ip address 140.10.100.14 255.255.255.0
>> map-group SVC
>> atm nsap-address BB.000000000000000000000000.000200020002.00
>> atm pvc 5 0 5 qsaal
>> atm pvc 16 0 16 ilmi
>> no atm ilmi-keepalive
>> atm arp-server self
>> !
>> interface FastEthernet1/0
>> ip address 140.10.14.1 255.255.255.0
>> !
>> router ospf 14
>> redistribute connected subnets
>> network 140.10.14.0 0.0.0.255 area 5
>> network 140.10.100.0 0.0.0.255 area 0
>> neighbor 140.10.100.13 priority 1
>> !
>> map-list SVC
>> ip 140.10.100.13 atm-nsap AA.000000000000000000000000.000100010001.00
>> broadcast
>> !
>> end
>>
>> r14#sh ip ro
>>
>> Gateway of last resort is not set
>>
>> 140.10.0.0/16 is variably subnetted, 5 subnets, 2 masks
>> O E2 140.10.255.13/32 [110/20] via 140.10.100.13, ATM0/0
>> C 140.10.255.14/32 is directly connected, Loopback0
>> C 140.10.14.0/24 is directly connected, FastEthernet1/0
>> O IA 140.10.13.0/24 [110/2] via 140.10.100.13, ATM0/0
>> C 140.10.100.0/24 is directly connected, ATM0/0
>> r14#sh atm ilmi-stat
>>
>> Interface : ATM0/0 Interface Type : Private UNI (User-side)
>> ILMI VCC : (0, 16) ILMI Keepalive : Disabled
>> ILMI State: UpAndNormal
>> Peer IP Addr: 0.0.0.0 Peer IF Name: ATM0/1/0
>> Peer MaxVPIbits: 8 Peer MaxVCIbits: 14
>> Active Prefix(s) :
>> 47.0091.8100.0000.00d0.baf3.3b01
>>
>> ls1010#sh run
>> Building configuration...
>>
>> Current configuration:
>> !
>> version 12.0
>> no service pad
>> service timestamps debug uptime
>> service timestamps log uptime
>> no service password-encryption
>> !
>> hostname ls1010
>> !
>> ip subnet-zero
>> !
>> atm address 47.0091.8100.0000.00d0.baf3.3b01.00d0.baf3.3b01.00
>> atm router pnni
>> no aesa embedded-number left-justified
>> node 1 level 56 lowest
>> redistribute atm-static
>> !
>> process-max-time 200
>> !
>> interface ATM0/1/0
>> desc ***connection to R14
>> no ip address
>> no ip directed-broadcast
>> no atm ilmi-keepalive
>> !
>> interface ATM0/1/1
>> desc ***connection to R13
>> no ip address
>> no ip directed-broadcast
>> no atm ilmi-keepalive
>> !
>> interface ATM0/1/2
>> no ip address
>> no ip directed-broadcast
>> no atm ilmi-keepalive
>> !
>> interface ATM0/1/3
>> no ip address
>> no ip directed-broadcast
>> no atm ilmi-keepalive
>> !
>> interface ATM2/0/0
>> no ip address
>> no ip directed-broadcast
>> atm maxvp-number 0
>> !
>> interface Ethernet2/0/0
>> no ip address
>> no ip directed-broadcast
>> !
>> ip classless
>> !
>> atm route aa.0000... ATM0/1/1
>> atm route bb.0000... ATM0/1/0
>> !
>> line con 0
>> transport input none
>> line aux 0
>> line vty 0 4
>> !
>> end
>>
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:22:00 GMT-3