Planet Technology IP DSLAM IDL-4801 - Manual (Page 150)

IDL series User Guide 150
But if there is no chance of such duplicate packets, or the
duplicate packets need not have a special handling, reverse
distribution filtering may be disabled.
Type: Create -- Optional
Modify -- Optional
Default value: enable
fallback Enable |
Disable
This specifies whether fallback is to happen for aggregator
interface, when a link goes down. As fallback trigger leads to
re-propagation of protocol PDUs to the links based on the state
of the links, this may be enabled if re-propagation of protocol
PDUs is required for immediate restoration of peer protocol
state on uplink devices. If such a treatment is not required and
Protocol time out may only be triggered for re-propagation,
Fallback trigger should be disabled.
Type: Create -- Optional
Modify -- Optional
Default value: enable
Example:
$ create rdncy aggr info IfName aggr-0 revdistrib disable fallback disable
Output:
Verbose Mode On
Entry Created
Interface Index : aggr-0
Reverse Distribution : disable FallBack : disable
Verbose Mode Off:
Entry Created
Output Fields:
Field Description
Interface Index This specifies the interface index used for the Redundancy Aggregator
type of interfaces. Valid Value is aggr-0
Reverse Distribution It denotes whether reverse distribution filtering is to be enforced for
traffic in the receiving direction, when both the links are active, for this
aggregator interface. If duplicate packets are expected on the redundant
links (if uplink aggregating device is layer2 switch) Reverse distribution
filtering may be enabled. But if there is no chance of such duplicate
packets or the duplicate packets need not have a special handling
reverse distribution filtering may be disabled.