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304 CHAPTER 19: ATM CONFIGURATION COMMANDS
mechanism used by PVC is FIFO. You can use the fifo queue-length command in
the PVC view to change its queue length.
n
The effect of this command applies to ATM main interface and sub-interface
simultaneously.
Example # Set the MTU of ATM interface atm 1/0 to 1492 bytes.
<Sysname> system-view
[Sysname] interface atm 1/0
[Sysname-Atm1/0] mtu 1492
oam ais-rdi
Syntax oam ais-rdi up up-count down down-count
undo oam ais-rdi
View PVC view, ATM class view
Parameter up-count: Period (in seconds). A PVC goes up if no alarm indication signal/remote
defect indication (AIS/RDI) alarm cell is received in the period specified by this
argument. The value range of this argument varies with device model.
down-count: Number of AIS/RDI alarm cells. A PVC goes down if the number of
the successive AIS/RDI alarm cells received reaches the number specified by this
argument. The value range of this argument varies with device model.
Description Use the
oam ais-rdi command to modify the parameters related to AIS/RDI alarm
cell detection.
Use the
undo oam ais-rdi command to restore the default.
By default, AIS/RDI alarm cell detection is enabled, which means a PVC goes down
if the number of successive AIS/RDI alarm cells received reaches that specified by
the down-count argument, and it goes up if no AIS/RDI alarm cell is received in a
period specified by the up-count argument.
Note that the oam ais-rdi command is not applicable to the secondary PVCs of a
PVC group.
n
■ The primary PVC of a PVC group is the PVC based on which the PVC group is
created.
■ Second PVCs are created in PVC groups.
Example # Configure the AIS/RDI alarm detection parameters for PVC 1/32, setting both
up-count and down-count to 5.
<Sysname> system-view
[Sysname] interface atm 1/0
[Sysname-Atm1/0] pvc 1/32
[Sysname-atm-pvc-Atm1/0-1/32] oam ais-rdi up 5 down 5