Perle Systems IOLINK-PRO IOLINK-520 - Manual (Page 16)

Introduction
IOLINK-PRO & 520 Reference Manua — 1.15
Aging Exception
“Permanent” address entries are an exception to the aging rule. A permanent address is one that is not subject to the
aging timer and will remain in the filter table for an indefinite period of time.
A table is reserved for permanent address entries, separate from the table that is used for those non-permanent
entries that are subject to aging. These tables may be displayed and modified with the bridge/router options
discussed in this manual. Access is made locally from each Bridge/Router Console or one bridge/router can be made
Master, able to control all functions of a partner IOLINK router.
Filled Address Table
The filter table can hold 2048 address entries.If filter address table becomes filled, the following automatic procedure is
followed:
This procedure defines that an address that is not in the table will not be added and will be treated as any other unknown
address. The frame will be passed to the other segment. An alarm will also be generated with the message “Station Address
Table Full,” and from this point, another alarm will be generated only if in the meantime the table empties by 1/3 and then
fills up again.