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Cisco Media Gateway Manager 5.0 User Guide
OL-5461-02
Chapter 5 Maintaining an Efficient Network
How Do I Manage Redundancy and Failover?
5.5 How Do I Manage Redundancy and Failover?
This section contains the following information:
• 5.5.1 Configuring Card Redundancy
5.5.1 Configuring Card Redundancy
These tasks are used to configure card redundancy:
• 5.5.1.1 Adding Redundancy
• 5.5.1.2 Modifying a Card for Redundancy
Card redundancy uses a secondary card of the same type to serve as a standby card and takes over if the
active card fails Automatic protection switching (APS) on a SONET line can be combined with front
card redundancy. The ATM link is protected from both line and card failures.
You can setup card redundancy at the shelf level.
5.5.1.1 Adding Redundancy
By adding redundancy, you can link two slots to support card-level redundancy for a pair of service
modules. A redundant pair consists of a primary slot and a secondary slot. Both cards must be in the
active state for you to configure redundancy. After configuration, the secondary service module goes
into the standby state.
To add redundancy:
Step 1 In the Domain Manager, select the node and choose Configuration > MGX880/8850 MG >
Configuration Center to display the Configuration Window for Elements.
Step 2 Click the Cards tab to display a summary report of all the cards that are installed on the node.
Step 3 Choose Redundancy Info from the Category drop-down arrow to display the redundancy status for the
node.
Step 4 Click Create to display the Redundancy Configuration window. See Figure 5-5.
Source Specify the location of the software:
• Local allows you to select an image on the current client system.
• Server allows you to select an image on the Cisco MGM server to which
your client is connected.
• Remote option is grayed out.
Time (time zone) Set a time for the download. Click Now to begin download immediately, or
click At Time and specify when to begin download, in 5-minute increments.
Note The time zone can be Greenwich mean time (GMT), a user-defined
offset from GMT, or local time, depending on what is specified in the
User Preferences dialog box.
Table 5-21 Field Description for the Software Download Dialog (continued)
Field Description
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