Table Of Contents
Managing Fault Tolerance and XML Configuration
Understanding Fault Tolerance
Configuring Fault Tolerance
Editing Fault Tolerance Configuration
Understanding XML Configuration
Viewing XML Configuration
Editing XML Configuration
Managing Fault Tolerance and XML Configuration
The Miscellaneous section in the CSM describes the following:
•
Understanding Fault Tolerance
• Understanding XML Configuration
Figure 11-1 Miscellaneous Page
Understanding Fault Tolerance
In the secure (router) mode, the client-side and server-side VLANs provide the fault-tolerant (redundant) connection paths between the CSM and the routers on the client side and the servers on the server side. In a redundant configuration, two CSMs perform active and standby roles. Each CSM contains the same IP, virtual server, server pool, and real server information. From the client-side and server-side networks, each CSM is configured identically. The network sees the fault-tolerant configuration as a single CSM.
Two CSMs can be configured in a fault-tolerant mode to share state information about user sessions and provide connection redundancy. When the active CSM fails, open connections are handled by the standby CSM without interruption, and users experience hitless failover.
Fault-tolerant configuration can be done with two CSMs in two Cisco Catalyst 6500 Series devices or in a single chassis. Configuration can also be done in either the secure (router) mode or nonsecure (bridge) mode.
Configuring fault tolerance requires the following:
•Two CSMs that are installed in the same or different Catalyst 6500 series chassis.
•Identically configured CSMs. One CSM is configured as active; the other is configured as standby.
•Each CSM connected to the same client-side and server-side VLANs.
•Communication between the CSMs provided by a shared private VLAN.
•A network that sees the redundant CSMs as a single entity.
Related Topics:
• Configuring Fault Tolerance
• Editing Fault Tolerance Configuration
Configuring Fault Tolerance
Note Click the Enable button to enable the Fault Tolerance Configuration in the CSM module. When it is enabled this button turns to Disable and the Edit button is now enabled to allow modifications to the Fault tolerance configuration values. To disable the Fault Tolerance Configuration click the Disable button.
To configure Fault Tolerance:
Step 1 Click Setup from the task bar, then click Miscellaneous in the left-most pane.
The Fault tolerance details are displayed at the top.
The following fields appear:
Field
|
Description
|
Group ID
|
ID of the fault-tolerant group. Both CSMs must have the same group ID.
|
VLAN ID
|
ID of the VLAN over which heartbeat messages are sent. Both CSMs must have the same VLAN ID.
|
Failover Time
|
Amount of time for a standby CSM to wait before becoming active.
The default failover time is 3 seconds.
|
Heartbeat Time
|
Time interval between heartbeat transmissions (in seconds).
|
Priority
|
Priority of a CSM.
|
Preempt
|
Choose Preempt to allow a higher priority CSM to take control of a fault-tolerant group when it comes online.
|
From here, you can do the following functions:
•Click Edit to edit the fault tolerance configuration. For more information, see "Editing Fault Tolerance Configuration" section.
•Click Disable to disable the Fault Tolerance Configuration in the CSM Module.
Editing Fault Tolerance Configuration
To edit Fault Tolerance configuration:
Step 1 Click Setup from the task bar, then click Miscellaneous in the left-most pane.
Step 2 Click Edit under the fault tolerance section.
The following fields appear:
Field
|
Description
|
Group ID
|
Enter the ID of the fault-tolerant group. Both CSMs must have the same group ID.
The range is from 1 to 254.
|
VLAN ID
|
Enter the ID of the VLAN over which heartbeat messages are sent. Both CSMs must have the same VLAN ID.
The range is from 2 to 4095.
|
Failover Time
|
Enter the failover time.
The range is from 1 to 65535 seconds. The default failover time is 3 seconds.
|
Heartbeat Time
|
Enter the heartbeat time.
The range is from 1 to 65535 seconds.
|
Priority
|
Enter the priority of the CSM.
The range is from 1 to 254.
|
Preempt
|
Specify Yes or No to allow a higher priority CSM to take control of a fault-tolerant group when it comes online.
|
Understanding XML Configuration
Earlier, the only method was available for configuration of the CSM was the IOS command line interface. With XML, you can configure the CVDM-CSM using a Document Type Definition or DTD.
Related Topics:
• Viewing XML Configuration
• Editing XML Configuration
Viewing XML Configuration
Note Click the Enable button to enable the XML Configuration in the CSM module. When it is enabled this button turns to Disable and the Edit button is now enabled to allow modifications to the XML configuration values.To disable the XML Configuration click the Disable button.
To view XML configuration:
Step 1 Click Setup from the task bar, then click Miscellaneous in the left-most pane.
XML configuration details are displayed in the botton half of the page.
The following fields appear:
Field
|
Description
|
VLAN ID
|
ID of the VLAN.
|
Client Group
|
Client-group can be either standard access-list name or ID (from 1 to 99).
|
Port
|
The port number.
|
Status
|
Status of XMLservice.
|
Credentials
|
User Name
|
Name of the credentials user.
|
Password
|
Password of the credentials user.
|
From the main XML Configuration page, you can access functions to do the following:
•Click Edit to edit the XML Configuration. For more information, see "Editing XML Configuration" section.
•Click Disable to disable the XML Configuration in the CSM Module.
Editing XML Configuration
To edit XML configuration:
Step 1 Click Setup from the task bar, clickMiscellaneous in the left-most pane.
XML configuration details are displayed in the botton half of the page.
Step 2 Click Edit. The Edit XML Configuration dialog appears.
The following fields appear:
Field
|
Description
|
VLAN ID
|
Enter the ID of the VLAN.
|
Client Group
|
Enter the name or ID of the client group. If ID, the range is from 1 to 99.
|
Port
|
Enter the decimal TCP/UDP port number. The range is from 0 to 65535.
|
Status
|
Specify, from the list, the status of XML Service.
You can choose between In Service or Out of Service.
|
Credentials
|
User Name
|
Name of the credentials user.
|
Password
|
Password of the credentials user.
|
From this page, you can access functions to do the following:
•Click Add to add the credentials by entering the username and the password.
•Select a row and click Delete to delete the corresponding credential.
