I have a TAC case open with this, but I wanted to see if I could get some ideas from anyone here. All documented configuration is v. simple and straightforward, but something is amiss. Any pointers, advice would be great:
Here's a diagram of what we have set up. Very simple setup we have:
maingw7500 LS1010 Loaner3600
atm5/1/0.40 -------atm0/0/0 | atm0/0/1 -------atm1/0.50
pvc3/40 ------------ pvc 3/40 pvc3/50 ----------pvc3/50
Now for the interface configs on the routers and the entire config of the LS1010:
VGW7500 (IOS Version 12.0(9)S)
interface ATM5/1/0
no ip address
no ip directed-broadcast
ip route-cache flow
no ip route-cache cef
no ip route-cache distributed
atm uni-version 3.1
no atm auto-configuration
atm ilmi-keepalive
no atm address-registration
atm ilmi-pvc-discovery
!
interface ATM5/1/0.40 point-to-point
ip address 150.240.45.1 255.255.255.252
no ip directed-broadcast
pvc 3/40
protocol ip 150.240.45.2
no ilmi manage
oam-pvc 0 ****NOTE**** here oam-pvc manage brings down the interface!
encapsulation aal5snap
-----------------------------------------------
Loaner3600 (IOS Version 12.1(5)T5)
interface ATM1/0
no ip address
ip route-cache flow
atm uni-version 3.1
no atm auto-configuration
atm ilmi-keepalive
no atm address-registration
atm ilmi-pvc-discovery
!
interface ATM1/0.50 point-to-point
ip address 150.240.45.2 255.255.255.252
pvc 3/50
protocol ip 150.240.45.1
oam-pvc manage
encapsulation aal5snap
-------------------------------------------------
SW1010_Lightstream(IOS Version 12.1(7a)EY3)
Current configuration : 1589 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname sw1010
!
enable secret 5 xxx
!
network-clock-select 1 System clock
sdm ipqos zero
sdm policy 0
ip subnet-zero
no ip finger
!
!
atm address 47.0091.8100.0000.0009.b71c.3e01.0009.b71c.3e01.00
atm router pnni
no aesa embedded-number left-justified
node 1 level 56 lowest
redistribute atm-static
!
!
!
!
interface ATM0/0/0
no ip address
no atm auto-configuration
no atm address-registration
!
interface ATM0/0/1
no ip address
no atm auto-configuration
no atm address-registration
atm pvc 3 50 interface ATM0/0/0 3 40
!
interface ATM0/0/2
no ip address
no ip route-cache cef
shutdown
no atm auto-configuration
no atm address-registration
atm uni version 3.1
!
interface ATM0/0/3
no ip address
shutdown
!
interface ATM0
no ip address
atm oam interface ATM0/0/0 0 16 seg-loopback rdi
atm oam interface ATM0/0/1 0 16 seg-loopback rdi
atm oam interface ATM0/0/2 0 16 seg-loopback rdi
atm oam interface ATM0/0/3 0 16 seg-loopback rdi
atm oam interface ATM0/0/0 0 5 seg-loopback rdi
atm oam interface ATM0/0/1 0 5 seg-loopback rdi
atm oam interface ATM0/0/2 0 5 seg-loopback rdi
atm oam interface ATM0/0/3 0 5 seg-loopback rdi
!
interface Ethernet0
ip address 150.240.150.154 255.255.255.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 Ethernet0
no ip http server
!
!
!
line con 0
transport input none
line aux 0
line vty 0 4
exec-timeout 120 0
password 7 xxx
login
!
end
--------------------------------
NOTES:
- When the routers are terminated with a physical loopback they ping their own ATM ints just fine.
- All interfaces on the routers have been in production in recent past.
- 3600 interface stopped flapping when we extended its cable.
- Routers can ping their own ATM ints also when they are plugged into LS1010 AND the other LS1010 interface it is mapped to is plugged into itself with at physical loopback.
- 3600 can ping its own ATM int even when it is plugged into LS1010 AND 7500 is plugged into other LS1010 interface to which its mapped
- Also, on the LS1010, when we do a "ping atm interface atm0/0/1 3 50 end-loopback" command it works fine (this is with a normal setup like i just mentioned above), but the same "ping atm" command mapping to the 7500's interface and pvc does not work because we can't run OAM-PVC MANAGE on the 7500 sub-int without it bringing down the interface??
- Throughout this process we have occasionally been able to get pings through from the 3600 atm int to the 7500 atm int.
- We've tried many debugs, and one common debug message on pings is "encapsulation failed", but we have aal5snap defined on both ends of the PVC
- I know we don't need ILMI on a PVC, but it helps for debugging
- Both atm interfaces on the routers are set to CLOCKING=LINE, and the LS1010 is set to "Current clock source:System clock, priority:1"
Any advice or help would be appreciated!
Jason
