Zhone 2000 ユーザーガイド
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2 0 0 0 - A 2 - G B 2 3 - 0 0
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Type “Y” to confirm your changes, or press Escape to cancel. If you
confirm, the IAD saves the settings. If bridging is enabled and an IP address
is assigned on the WAN interface, the IAD displays the IP Over Bridge
prompt, which asks if you wish to enable or disable IP Over Bridge on the
WAN port.
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Type “E” to enable IP Over Bridge on the WAN port, or “D” to disable it.
The IAD updates the configuration and displays the Bridge Configuration
menu (Figure 4.61).
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Repeat these steps for each port on which you want to enable or disable
bridging.
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Continue with other configuration tasks, or press Escape to return to the
Bridge Configuration menu.
Bridge Aging Timer
The bridge aging timer establishes the amount of time the IAD keeps a MAC
address in the bridging table. When the timer expires, the IAD deletes the
address from the database.
To set the bridge aging timer, follow the steps below.
address in the bridging table. When the timer expires, the IAD deletes the
address from the database.
To set the bridge aging timer, follow the steps below.
1
Type “A” on the Bridge Configuration menu (Figure 4.61) to select
Configure Bridge Aging Timer. The IAD prompts you to enter the Bridge
Aging Time.
2
Type the aging time (range 1 to 3600 seconds) and press Enter. The IAD
updates the timer. Press any key to display the Bridge Configuration menu
3
Continue with other configuration tasks, or press Escape to return to the
Bridge Configuration menu.
Enabling and Disabling Spanning Tree
A network that has many bridges creates the potential for network loops. A
loop presents conflicting information about the segment on which a specific
address is located and forces the bridge to forward all data.
When configuring the IAD as a router, you must disable Spanning Tree both
globally and by port.
loop presents conflicting information about the segment on which a specific
address is located and forces the bridge to forward all data.
When configuring the IAD as a router, you must disable Spanning Tree both
globally and by port.
NOTICE:
When you enable Spanning Tree, the IAD reconfigures the bridge
network to transfer data along an optimum route to its destination.
network to transfer data along an optimum route to its destination.
Enable/Disable Spanning Tree Globally
To enable or disable Spanning Tree globally, follow the steps below.
1
On the Bridge Configuration menu (Figure 4.61), type “T” to select
Enable/Disable Spanning Tree Globally. The IAD displays the status of
bridging and prompts you to disable or enable it.