3-18
Console Program Essentials
If you choose
No
, the Don’t Fragment flag in the packet’s header
determines whether the packet is fragmented. That is, if the Don’t
Fragment flag is not in the header, the packet is fragmented. If you choose
No and the Don’t Fragment flag is in the header, packets longer than 1518
bytes will be dropped.
Packets Not Fragmented
: This view-only field is a counter that lets you
monitor the number of IP packets longer than 1518 bytes not fragmented at
the FDDI port.
Packets With DF Bit Set
: For cases in which the Ignore Don’t Fragment
Flag is not set, this view-only field is a counter that shows the number of
packets that are dropped because the packet’s source has specified no
fragmentation.
Packets With Bad IP Version
: This view-only field is a counter that
shows the number of IP packets greater than 1518 bytes that have not been
fragmented because they are not IP version 4.
To view the latest contents of these three counters, select
Refresh
Counters.
To reset these three counters to zero, select
Clear Counters
.
Setting the Address Aging Interval
The bridge implements an aging algorithm that removes a station's address
from the Address Table if that station has not transmitted a packet within a
programmable aging interval. In typical implementations, stations will
generate periodic keep-alive messages to the server which prevents their
address from aging out of the table.
If a station has not transmitted a packet within a specified aging time (aging
interval), which you can set, the bridge removes the station’s address from
the Address Table.