IBM 9077 Manuel D’Utilisation

146

IBM 9077 SP Switch Router: Get Connected to the SP Switch

4.6.9.3 Editing Utility – Bredit
The

bredit

utility is used to access and edit the /etc/bridged.conf

configuration file.

At this point, bredit runs a script in which you are asked if you want to make
the changes permanent. The script also gives you the option of signaling
bridged to reread the updated file immediately. When this option is taken,
bridged restarts as if it were stopped and restarted for the first time. If you
change the file in vi but do not choose either of the script options,

bredit

tells you that your changes were not committed.

If bridged is not running when bredit is used, the user is given the option of
saving changes to the configuration in /etc/bridged.conf so that the next time
bridged is started, the new changes take effect.

See an actual screen shot in Section 7.1.2, “ATM OC-3c Backbone - Using
Two Ports” on page 215.

4.6.10 Management Tools

A set of tools are provided to manage bridging, primarily through bridged.
Brief descriptions are provided here; more details are given in the

GRF

Configuration Guide 1.4,

GA22-7366

These tools include the

brstat

command

which displays relevant bridged

status and bridging information and the

brinfo

command which displays

relevant kernel-based bridging information.

4.6.10.1 brstat
The

brstat

command provides a snapshot of state information directly from

bridged.

Output will look similar to the following:

Bridged Information:

Debug Level: 7, Trace Mask: 0xffffffff, Spanning Tree: Enabled

Log File: "/var/tmp/bridged.trace", Config File: "/etc/bridged.conf"

bridged started at: Wed Jun 17 14:13:16 1998

Bridge Group bg0

Spanning Tree: Enabled

Designated Root: [me]

Bridge ID: 32768 00:c0:80:89:2d:f2

Root Port: None

Topology Change Detected: No

Root Max Age: 20, Hello Time: 2, Forward Delay: 15

Bridge Max Age: 20, Hello Time: 2, Forward Delay: 15, Hold Time: 1

Path Desig Desig Desig