In this case, as ILMI has been disabled on the interface by issuing the no atm ilmi−enable command, the prefix is not sent to the router and hence, no address registration can occur.
Access List Configuration Problems or ILMI Community Configured as Read−Only
Access List configuration problems can occur if one of the workarounds proposed in this security notice is wrongly applied to the LightStream 1010 or the router. If you have added these lines to the switch configuration, ILMI (and PNNI) stop working on the switch:
access−list deny any
snmp community ILMI view *ilmi RW
This has the following result:
bernard# show atm ilmi−st
Interface : ATM2/0/0 Interface Type : Private UNI (User−side)
ILMI VCC : (0, 16) ILMI Keepalive : Disabled
ILMI State: WaitDevType
As you can see, the ILMI−status on the router stays in WaitDevType and address registration does not occur.
Adding the following configuration on the router or the switch will also cause ILMI to stay in WaitDevType and thus prevent any address registration:
access−list <x> [permitdeny] a.b.c.d snmp−server community ILMI RO <x>
If the router and the switch are in a correct states, then you must check whether cells are being sent and received on the VC 0/16. You can do this issuing the commands described in the introduction of this document. You can verify this on a router by issuing these show commands:
∙show atm pvc 0/16
∙show atm vc vcd
On a LightStream 1010 or Catalyst 8500 MSR, issue these show commands:
∙show atm vc interface atm x/y/z 0 16
∙show atm vc traffic interface atm x/y/z 0 16
bernard# show atm pvc 0/16 ATM2/0/0: VCD: 1, VPI: 0, VCI: 16 UBR, PeakRate: 149760
AAL5−ILMI, etype:0x0, Flags: 0xC27, VCmode: 0x0
OAM frequency: 0 second(s), OAM retry frequency:
1 second(s), OAM retry frequency: 1 second(s)
OAM up retry count: 3, OAM down retry count: 5
OAM Loopback status: OAM Disabled
OAM VC state: Not Managed
ILMI VC state: Not Managed InARP DISABLED
Transmit priority 4
InPkts: 255, OutPkts: 309, InBytes: 18842, OutBytes: 22657
InPRoc: 269, OutPRoc: 319, Broadcasts: 0
!−−− Output suppressed.
Cisco − ILMI Address Registration Problems: %LANE−3−NOREGILMI
