Changing The Aging Time For Fdb Entries - 3Com WX4400 Reference Manual

Changing the Aging
Time for FDB Entries
By default, all addresses except the host address of the VLAN, the
network broadcast address, and the subnet broadcast address are
included in the range. If you specify the range, the start address must be
lower than the stop address, and all addresses must be in the same
subnet. The IP interface of the VLAN must be within the same subnet but
is not required to be within the range.
6 In the Primary DNS box, enter the IP address of the primary DNS server
for clients who receive addresses from this VLAN.
7 To provide a backup DNS server, type its IP address in the Secondary
DNS box.
8 To specify the DNS domain name for hosts who receive IP addresses from
this VLAN, enter the domain name in the DNS Name box.
9 To specify the default router (gateway) for hosts who receive IP addresses
from this VLAN, enter the address in the Default Router box.
10 Click OK.
The aging timeout period specifies how long a dynamic entry can remain
unused before the software removes the entry from the database.
1 Access the VLAN table:
a Select the Configuration tool bar option.
b In the Organizer panel, click the plus sign next to the WX switch.
c Click the plus sign next to System.
d Select VLANs.
2 In the Content panel, select the VLAN.
3 Click Properties.
4 In the Aging Time box, specify the aging timeout period (0 to 1,000,000
seconds) for dynamic entries in the forwarding database. The default is
300 seconds (5 minutes). If you specify 0, aging is disabled.
5 Click OK.
Viewing and Configuring VLANs 229