Installation and User Manual
EtherHaul
1200™
Page 76
EH-INST-02, Issue 4.0
6.5.4
VLAN-to-SNMP ifTable
Whenever a VLAN is associated with Component c1, an entry in the SNMP ifTable is
automatically created for that VLAN. When the VLAN is deleted, the corresponding
ifTable entry is also deleted.
6.5.5
SNMP ifTable Attributes
Table
11-32
on page 227 lists and describes the attributes in the SNMP ifTable.
6.5.6
Forwarding Data Base (FDB)
The Forwarding Data Base (FDB) enables access to general parameters of the FDB
Address table, which specifies configuration and control information for each Filtering
Database currently operating on the device. Entries in the FDB Address table appear
automatically when VLANs are assigned FDB IDs in the VLAN Table (
Table
11-28
). For
more information about the FDB Address table, refer to
FDB Address Table
on page 76.
The system maintains 64 permanent instances of the FDB object.
Use the following command to create and modify FDB entries:
set fdb s1 <fdb-id-list> [aging <aging-time>]
Use the following command to display FDB entries:
show fdb [s1
[<fdb-id-list>
[{aging | full-table-counter | num-of-dynamic}]]]
Table
11-33
on page 229 lists and describes the FDB attributes.
6.5.7
FDB Address Table
The FDB Address table contains information about unicast entries for which the device
has forwarding and/or filtering information. This information is used by the transparent
bridging function when determining how to propagate a received frame.
Entries in the FDB Address Table appear automatically when VLANs are assigned FDB IDs
in the VLAN Table (
Table
11-28
).
Use the following command to create and modify entries in the FDB Address table:
set fdb-table s1 <fdb-id-list> <mac-addr> port <bridge-port>
If the FDB Address table entry does not already exist, the
set fdb-table
command
creates it and assigns the attributes specified. Upon creation, in the event that an
attribute is not explicitly specified, the entry is created with the default value for that
attribute.
If the entry already exists, then the
set fdb-table
command replaces the attributes
that are currently defined for the entry with those specified in the command.
