Product specifications

13.4.6. filterage
Syntax:
filterage [<age>]
Description:
This command sets, or displays if no arguments are given, the filter table ageing time. The ageing time is the time after
which MAC addresses are removed from the filter table when there has been no activity. The time is specified in seconds
and may be any integer value in the range 10…100,000 seconds. This value may also be changed through SNMP.
Changing the value of filterage has immediate effect.
Configuration saving saves this information. By default the filter ageing time is set to 300 seconds.
Example:
DSL bridge> filterage
13.4.7. flush
Syntax:
flush [<port>]
Description:
This command allows the MAC entries for a specified port, or all ports, to be removed from the filter table. The port
number for a device may be determined using the
device list
or
status
commands. If the port number is omitted,
all entries for all ports are removed from the filter table.
Example:
DSL bridge> flush
13.4.8. portfilter
Syntax:
portfilter [<source port> all|<destination ports>]
Description:
The
portfilter
command allows control over the bridge’s forwarding and broadcasting behaviour. By default, when a
multicast or an unknown packet is received on a port (referred to above as the source port), it will be forwarded to all
other bridge ports (referred to above as the destination ports). Each bridge port may have its behaviour modified
separately. The first example below configures the bridge so that packets arriving on port 2 will only be forwarded to
ports 3, 4 and 5, and packets arriving on port 3 will only be forwarded to port 1. All other ports retain their default
behaviour. Note that this command does not force packets arriving on the source port to be sent to all specified
destination ports. The bridge retains its learning behaviour, so unicast packets, once their destination is known to the
bridge, will still only be sent to one port. Note also that the bridge itself (for example when attached to the IP router) will
always forward to all ports, and will always be forwarded to by all ports. The default behaviour can be restored by
calling this command with the argument “
all
”, as shown in the second example. The ports are specified as integers, as
displayed by the
device list
command. When using this command in the
initbridge
configuration file, ports are
numbered in the order in which the
device add
commands are given, starting from 1. If no arguments are given, the
current settings for each port are displayed.
Example 1:
DSL bridge> portfilter 2 3 4 5
DSL bridge> portfilter 3 1
Example 2:
DSL bridge> portfilter 2 all
DSL bridge> portfilter 3 all
13.4.9. status
Syntax:
Status
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