AGEING_TIME
The AGEING_TIME parameter tells the Bridge Module when to “age out” (automatically remove) addresses from the dynamic filtering table (default ageing period is 5 minutes). Once you set this value, the bridge will remove addresses from the table when the node with the specific address fails to transmit for the age period. For example, the command below would age out an address once it was inactive for 17 minutes.
OEBM> set ageing_time 17 [ENTER]
Note that this command has no effect on addresses in the static address table filter table.
Spantree
The SET SPANTREE command controls all of the Spanning Tree configuration settings. These settings include:
–bridge priority
–forward delay time
–hello and listen times
–mode
–the path cost for each port
Refer to the SET SPANTREE section in Chapter 4 for more information on the SPANTREE command. Refer to Appendix B for information on the Spanning Tree Algorithm and Protocol.
Filtering Parameters
Filtering is an important capability of the Bridge Module because it allows particular nodesto be isolated on different subnetworks. This feature keeps heavy traffic on one subnetwork from slowing down the entire network. There are two filtering tables that the bridge uses: the dynamic filter table and the static address filter table. The dynamic filter table is generated automatically by the bridge as explained below and the static address filter table is built using the SET FILTER command.
3 - 20 ONline Ethernet Bridge Module Installation and Operation Guide
