Configuring Bridge Table Entries; Configuring Bridge Routing - 3Com MSR 50 Series Configuration Manual

Configuring Bridge
Table Entries
Configuring Bridge
Routing
Typically, a bridge dynamically creates and maintains a bridge table based on the
correlations between the MAC addresses it learned and the corresponding
interfaces. The administrator, however, can manually configure some bridge table
entries, which will never get aged out.
The aging time of a dynamic bridge table entry refers to the lifetime of the entry
before it is deleted from the table. When the aging timer of a dynamic table entry
expires, the system deletes the entry from the table.
Follow these steps to configure a bridge table:
To do...
Enter system view
Enable dynamic address
learning
Configure a static bridge table
entry
Configure aging time of
dynamic bridge table entries
Bridge routing provides a forward capability that combines bridging and routing.
When data of a given protocol is exchanged between bridge interfaces, bridging
occurs; when data of a given protocol is exchanged between a bridge set and a
non-bridge-set network, the protocol can be routed. Before the built-in routing
and bridging functionalities are not activated, all protocol data can only be
bridged. With the built-in routing and bridging functionalities activated,
datagrams of the specified protocol can be either bridged or routed, and
switching between bridging and routing can be implemented flexibly through
configuration commands.
A bridge-template interface is a virtual route-selecting interface, on which various
network layer properties can be configured. By configuring a bridge-template
interface, you can connect the corresponding bridge set to a routed network. A
bridge set can have only one bridge-template interface. The number of a
bridge-template interface is the number of the bridge set it represents.
By default, if a bridge set contains Ethernet interfaces, its bridge-template
interface will use the MAC address of a random Ethernet interface. If the bridge
set contains no Ethernet interfaces, its bridge-template interface will use the
system default MAC address, of which the first 5 bytes depends on the device
model and the last byte is the number of the ridge set.
If bridge sets by the same bridge set number are enabled on two or more devices
and a bridge-template interface is created for each of these bridges sets while no
Ethernet interfaces have been added into these bridge sets, these bridge-template
interfaces will use exactly the same default MAC address. This will cause MAC
address conflict. To avoid this situation, you can different MAC addresses on
different bridge-template interfaces.

Configuring Bridge Table Entries

Use the command...
system-view
bridge bridge-set learning
bridge bridge-set
mac-address mac-address
{ deny | permit } [ dlsw |
interface interface-type
interface-number ]
bridge aging-time seconds
411
Remarks
-
Optional
Enabled by default
Optional
No static table entry is
configured by default
Optional
300 seconds by default