Table Of Contents
Managing Server Farms
Server Farms
Viewing Server Farms
Adding Server Farms
Adding Multiple Real Servers
Editing Server Farms
Health Checkup
Redirect Virtual Server
Viewing a Server Farm Node
Adding a Named Real Server
Adding an Unnamed Real Server
Editing a Real Server
Redirect Virtual Servers
Adding a Redirect Virtual Server
Editing Redirect Virtual Servers
NAT Pools
Viewing NAT Pools
Adding NAT Pools
Editing NAT Pools
Managing Server Farms
From the Server Farms page, you can do the following:
•
Configure server farms.
•Specify load balancing algorithm, and monitor in-band health for each server farm.
•Configure a set of real servers and their attributes.
•Configure client NAT pools.
•Configure redirect virtual servers and their attributes.
•Configure health monitoring probes, and enable inband health checkup.
•Direct the traffic to the SSL daughter card.
This section includes the following topics:
• Server Farms
• NAT Pools
Server Farms
A server farm (or server pool) is a collection of servers that contain the same content. You can specify the server farm name when you configure the server farm and add real servers to it, and when you bind the server farm to a virtual server.
When you configure server farms, do the following:
•Name the server farm.
•Configure a load-balancing algorithm (predictor) and other attributes of the farm.
•Configure client NAT pools.
•Configure a set of real servers and their attributes.
•Configure in-band health monitoring for each server farm.
Related Topics:
• Viewing Server Farms
• Adding Server Farms
• Editing Server Farms
• Viewing a Server Farm Node
• Adding a Named Real Server
• Adding an Unnamed Real Server
• Editing a Real Server
• Redirect Virtual Servers
Viewing Server Farms
Figure 5-1 Server Farms Page
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
The Server Farm dialog box appears with the following columns.
Column
|
Description
|
Name
|
Name of the server farm.
|
Predictor
|
Type of load-balancing algorithm used by the server farm. If not specified, the default is Round Robin.
It can be one of the following:
•Round Robin—Selects the next server in the list of real servers.
•Least Connections—Selects the server with the least number of connections.
•Forward—Allows the CVDM-CSM to forward traffic according with its internal routing tables.
•Hash URL—Selects the server using a hash value, based on the URL.
•Hash Address—Selects the server using a hash value, based on the source and destination IP addresses.
|
NAT
|
Shows whether server and client Network Address Translation (NAT) is enabled.
|
Reals
|
Number of real servers configured in the server farm.
|
Redirects
|
Shows the number of redirect virtual servers configured in the server farm.
|
Return Code Map
|
Specifies the return code map associated with the server farm.
|
From this dialog box, you can do the following:
•Click Add to add server farms. For more information, see Adding Server Farms.
•Select a server farm and click Edit to edit its configurations. For more information, see Editing Server Farms.
•Select a server farm and click Delete to delete it.
Adding Server Farms
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Click Add to create a new server farm. The Add Server Farm dialog box appears.
Step 3 Click one of the following tabs, then proceed to the corresponding section for configuration information:
• General
• Real Servers
• Health Checkup
• Redirect Virtual Server
General
When you click on the General tab, the following information appears:
Column
|
Descriptions
|
Name
|
Enter the name of the server farm.
|
Predictor
|
Load-Balancing Algorithm
|
Specify the load-balancing algorithm for the server farm from the list. Based on the load balancing algorithm the traffic will be diverted to the respective real server. If not specified, the default is Round Robin.
It can be one of the following:
•Round Robin—Selects the next server in the list of real servers.
•Least Connections—Selects the server with the least number of connections.
•Forward—Allows the CVDM-CSM to forward traffic according with its internal routing tables.
•Hash URL—Selects the server using a hash value, based on the URL.
•Hash Address—Selects the server using a hash value, based on the source and destination IP addresses.
|
Mask Type
|
It can be source, destination, or both.
This field is enabled only for Hash Address algorithm type.
|
Mask
|
The mask of the real server in the server farm. This field is enabled only for Hash Address algorithm type.
|
NAT
|
Server NAT
|
Select the check box to enable Server NAT.
|
Client NAT
|
Select the check box to enable Client NAT.
|
Back-End SSL encryption
|
Select the check box to enable backend SSL encryption.
This field will be enabled only when you select the Server NAT check box.
|
Pool
|
Enter the name of the client pool. You can modify this field only if client NAT is enabled in this server farm.
Click  and select one of the following:
•Select Pool—Opens the Client NAT Pool Selector dialog box and allows you to select a client pool from the list.
•Create Pool—Opens the Add NAT Pool dialog box and allows you to create a client pool. For more information, see Adding NAT Pools.
•Clear Pool—Allows you to clear the field.
|
Real Servers
When you select the Real Servers tab, the following information appears:
Column
|
Description
|
Real
|
Name of real servers configured in the server farm.
|
Local
|
Indicates if this real server is the SSL daughter card.
|
Min. Connections
|
The minimum number of connections for the real server.
|
Max. Connections
|
The maximum number of connections for the real server.
|
Weight
|
Weight assigned to the real server. The weight identifies the capacity of the real server compared to other real servers in the server farm.
|
Admin Status
|
Lets you know if the status of the real server.
|
From this dialog box, you can do the following:
•Click Add and select one of the following:
–Select Named Real Server—Opens the Add Named Real Server dialog box. For more information, see "Adding a Named Real Server" section.
–Create Unnamed Real Server—Opens the Add Unnamed Real Server dialog box. For more information, see "Adding an Unnamed Real Server" section.
–Add Multiple Real Servers—Opens the Real Server Selector and allows you to add multiple real servers. For more information, see Adding Multiple Real Servers.
•Select a real server and click Edit to edit its configurations. For more information, see "Editing a Real Server" section.
•Select a real server and click Delete to delete it.
Health Checkup
When you select the Health Checkup tab, the following information appears:
Column
|
Description
|
Fail Action
|
From the list, specify the behavior of the connection when the real server fails. It can be one of the following:
•None
•Purge
•Reassign
|
Return Code Map
|
Specify the return code map.
Click and select one of the following:
•Select Return Code Map—Opens the Return Code Map Selector dialog box. Allows you to select a return code map from the list.
•Create Return Code Map—Opens the Add Return Code Map dialog box to create a return code map. For more information, see Adding a Return Code Map, page 8-13.
•Clear Return Code Map to clear the field.
|
Inband Health Checkup
|
Select the check box to enable inband health monitoring for all the servers in the server farm. You can set the retry attempts and the number of retries.
|
Number of Retries
|
Enter the number of consecutive connection attempts before considering the real server failed.
|
Retry Interval
|
Enter the retry interval in seconds.
|
Associated Probes
|
Name
|
You can see the probes associated to the server farm.
|
From this dialog box, you can do the following:
•Click Add under the Associated Probes pane, to choose a probe from the list and associate it to the real server.
•Click Delete under the Associated Probes pane, to delete a probe.
Redirect Virtual Server
When you select the Redirect Virtual Server tab specify a virtual server to receive traffic redirected by a server farm. When you map real servers to redirect virtual servers, it provides persistence for clients to real servers across TCP sessions.
The following information appears:
Column
|
Description
|
Name
|
The name of the redirect virtual server.
|
SSL Port
|
The SSL port number.
|
Status
|
Status of the redirect virtual server.
|
From this dialog, you can do the following:
•Click Add to add a new redirect virtual server. For more information, see "Adding a Redirect Virtual Server" section.
•Click Edit to edit the properties of the redirect virtual server. For more information, see "Editing Redirect Virtual Servers" section.
•Select a row and click Delete to delete a redirect virtual server.
Adding Multiple Real Servers
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Click Add to create a new server farm. The Add Server Farm dialog box appears.
Step 3 Click the Real Servers tab.
Step 4 Click Add and from the list select Add Multiple Real Servers. The Real Server Selector appears, displaying the following columns.
GUI Element
|
Action/Description
|
Available Named Real Server pane
|
Name field
|
Select the real server.
|
Selected Named Real Server pane
|
Name field
|
Name of the selected real server.
|
Port field
|
Port number of the real server.
|
Local SSL field
|
Indicates if this real server is the SSL daughter card.
This column is visible only if you launch the CVDM-CSM for a CSM-S service module. It will not be visible if you launch CVDM-CSM.
|
Weight field
|
Weight assigned to the real server. The weight identifies the capacity of the real server compared to other real servers in the server farm.
|
From this dialog box, you can do the following:
•Select a real server from the Available Named Real Server pane and click Add to include it in the Selected named Real Server pane.
•Select a real server from the Selected named Real Server pane and click Remove, to remove the real server from the selected list.
•Click Clear All to remove all the real servers from the Selected named Real Server pane.
•Click Add New to add a new real server in the Selected named Real Server pane. For more information, see Adding a Real Server, page 6-9.
Editing Server Farms
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Select a sever farm and click Edit. The Edit Server Farm dialog box appears.
Step 3 Click one of the following tabs, then proceed to the corresponding section for configuration information:
• General
• Real Server
• Health Checkup
• Redirect Virtual Server
General
When you select the General tab the following information appears:
Column
|
Descriptions
|
Name
|
Enter the name of the server farm.
|
Predictor
|
Load-Balancing Algorithm
|
Specify the load-balancing algorithm for the server farm from the list. Based on the load balancing algorithm the traffic will be diverted to the respective real server. If not specified, the default is Round Robin.
It can be one of the following:
•Round Robin—Selects the next server in the list of real servers.
•Least Connections—Selects the server with the least number of connections.
•Forward—Allows the CVDM-CSM to forward traffic according with its internal routing tables.
•Hash URL—Selects the server using a hash value, based on the URL.
•Hash Address—Selects the server using a hash value, based on the source and destination IP addresses.
|
Mask Type
|
It can be source, destination or both.
This field is enabled only for Hash Address algorithm type.
|
Mask
|
The mask of the real server in the server farm. This field is enabled only for Hash Address algorithm type.
|
NAT
|
Server NAT
|
Select the check box to enable Server NAT.
|
Client NAT
|
Select the check box to enable Client NAT.
|
Back-end SSL encryption
|
Select the check box to enable back-end SSL encryption.
This field will be enabled only when you select the Server NAT check box.
|
Pool
|
Enter the name of the client pool. You can modify this field only if client NAT is enabled in this server farm.
Click and select one of the following:
•Select Pool—Opens the Client NAT Pool Selector dialog box and allows you to select a client pool from the list.
•Create Pool—Opens the Add NAT Pool dialog box and allows you to create a client pool. For more information, see Adding NAT Pools.
•Clear Pool—Allows you to clear the field.
|
Real Server
When you select the Real Servers tab the following information appears:
Fields
|
Description
|
Real
|
Name of real servers configured in the server farm.
|
Local
|
Indicates if this real server is the SSL daughter card.
|
Min. Connections
|
The minimum number of connections for the real server.
|
Max. Connections
|
The maximum number of connections for the real server.
|
Weight
|
Weight assigned to the real server. The weight identifies the capacity of the real server compared to other real servers in the server farm.
|
Admin Status
|
Lets you know if the status of the real server.
|
From this dialog box, you can do the following:
•Click Add and select one of the following:
–Select Named Real Server—Opens the Add Named Real Server dialog box. For more information, see "Adding a Named Real Server" section.
–Create Unnamed Real Server—Opens the Add Unnamed Real Server dialog box. For more information, see "Adding an Unnamed Real Server" section.
–Add Multiple Real Servers—Opens the Real Server Selector and allows you to add multiple real servers. For more information, see
•Select a real server and click Edit to edit its configurations. For more information, see "Editing a Real Server" section.
•Select a real server and click Delete to delete it.
Health Checkup
You can configure probes by specifying the probe name and type. After configuring a probe, you must associate it with a server farm for the probe to take effect. All servers in the server farm receive probes of the probe types that are associated with that server farm. You can associate one or more probe types with a server farm.
When you select the Health Checkup tab, the following information appears:
Field
|
Description
|
Fail Action
|
From the list, specify the behavior of the connection when the real server fails. It can be one of the following:
•None
•Purge
•Reassign
|
Return Code Map
|
Specify the return code map.
Click and select one of the following:
•Select Return Code Map—Opens the Return Code Map Selector dialog box. Allows you to select a return code map from the list.
•Create Return Code Map—Opens the Add Return Code Map dialog box to create a return code map. For more information, see Adding a Return Code Map, page 8-13.
•Clear Field—Allows you to clear the field.
|
Inband Health Checkup
|
Select the check box to enable inband health monitoring for all the servers in the server farm. You can set the retry attempts and the number of retries.
|
Number of Retries
|
Enter the number of consecutive connection attempts before considering the real server failed.
|
Retry Interval
|
Enter the retry interval (in seconds).
|
Associated Probes
|
Name
|
You can see the probes associated to the server farm.
|
From this dialog box, you can do the following:
•Click Add under the Associated Probes pane, to choose a probe from the list and associate it to the real server.
•Click Delete under the Associated Probes pane, to delete a probe.
Redirect Virtual Server
When you select the Redirect Virtual Server tab to specify a virtual server to receive traffic redirected by a server farm. A table appears with the following informations:
Field
|
Description
|
Name
|
The name of the redirect virtual server.
|
SSL Port
|
The SSL port number.
|
Status
|
Status of the redirect virtual server.
|
From this dialog box, you can do the following:
•Click Add to add a new redirect virtual server. For more information, see "Adding a Redirect Virtual Server" section.
•Click Edit to edit the properties of the redirect virtual server. For more information, see "Editing Redirect Virtual Servers" section.
•Select a row and click Delete to delete a redirect virtual server.
Viewing a Server Farm Node
You can see details of individual server farms. You can add redirect virtual servers and also set the administrative status of real servers in the server farm.
Figure 5-2 Server Farm Node Page
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Select a server farm from the object selector to view its details. The server farm table appears, displaying the following columns.
Field
|
Description
|
Predictor
|
Load-Balancing Algorithm
|
The load-balancing algorithm for the server farm. Based on the load balancing algorithm the traffic will be diverted to the respective real server. If not specified, the default is Round Robin.
It can be one of the following:
•Round Robin—Selects the next server in the list of real servers.
•Least Connections—Selects the server with the least number of connections.
•Forward—Allows the CVDM-CSM to forward traffic according with its internal routing tables.
•Hash URL—Selects the server using a hash value, based on the URL.
•Hash Address—Selects the server using a hash value, based on the source and destination IP addresses.
|
Mask Type
|
It can be source, destination or both.
This field is enabled only for Hash Address algorithm type.
|
Mask
|
Enter the mask of the real server in the server farm. This field appears only for Hash Address algorithm type.
|
NAT
|
Server NAT
|
Lets you know if server NAT is enabled in this server farm.
|
Client NAT
|
Lets you know if client NAT is enabled in this server farm.
|
Back-end SSL encryption
|
Lets you know that back-end SSL encryption is enabled.
|
Pool
|
The name of the client pool. This field will appear only when client NAT is enabled in this server farm.
|
Real Servers
|
Real
|
The name of the real server.
|
Local
|
Indicates if this real server is the SSL daughter card.
|
Min. Connections
|
The minimum number of connections for the real server.
|
Max. Connections
|
The maximum connections for the real server.
|
Weight
|
Weight assigned to the real server. The weight identifies the capacity of the real server compared to other real servers in the server farm.
|
Admin Status
|
The admin status of the real server with respect to this server farm.
|
Operational Status
|
The operational status of the real server with respect to this server farm.
|
Health Checkup
|
Fail Action
|
The course of action determined for the server farm in case of failure.
|
HTTP Return Code
|
The HTTP return code map for the server farm.
|
Inband Health Checkup
|
Number of Retries
|
The number of consecutive connection attempts before considering the real server failed.
|
Retry Interval
|
The retry interval (in seconds).
|
Associated Probes
|
The list of probes associated with the server farm.
|
From this dialog box, you can do the following:
•Select a real server and click Set Admin Status to instantly set its state.
•Click the Redirect Virtual Server button to view the redirect virtual servers associated with this real server. You can also add, edit, or delete a redirect virtual server. For more information, see:
– Adding a Redirect Virtual Server
– Editing Redirect Virtual Servers
•Click Edit to edit the server farm. For more information, see "Editing Server Farms" section.
Adding a Named Real Server
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Click Add. The Add Server Farm dialog box appears.
Step 3 Select the Real Server tab in this dialog box.
Step 4 Click Add, and choose Select Named Real Server from the options.
The Add Named Real Server dialog box appears, displaying the following columns.
Column
|
Description
|
Name
|
From the list, select the name of the named real server.
|
Real Server
|
Enter the name of the real server.
Click and select one of the following:
•Select Real Server—Opens the Named Real Server Selector dialog box and allows you to select a real server from the list.
•Create Real Server—Opens the Add Real Server dialog box and allows you to create a real server. For more information, see Adding a Real Server, page 6-9.
•Clear Real Server—Allows you to clear the field.
|
Port
|
Enter the port number.
|
Min. Connections
|
Enter the minimum number of connections for the real server.
|
Max. Connections
|
Enter the maximum number of connections for the real server.
|
Weight
|
Enter the weight assigned to the real server.
The weight identifies the capacity of the real server compared to other real servers in the server farm.
|
Redirect Virtual Server
|
Click and do one of the following:
•Select Redirect Virtual Server—Opens the Redirect Virtual Server Selector dialog box. It allows you to select a redirect virtual server from the list.
•Create Redirect Virtual Server—Opens the Add Redirect Virtual Server dialog box and allows you to add a redirect virtual server. For more information, see Adding a Redirect Virtual Server.
•Clear Redirect Virtual Server—Allows you to clear the field.
|
Local SSL
|
Select the check box to indicate that the real server is the SSL daughter card.
|
Status
|
Specify the status of the real server.
|
Back Up Real Server
|
Name
|
Click and do one of the following:
•Select Named Backup Real Server—Opens the Backup Real Server Selector dialog box and allows you to select a named backup real server from the list.
•Select Unnamed Backup Real Server—Opens the Backup Real Server Selector dialog box and allows you to select an unnamed backup real server from the list.
•Clear Backup Real Server—Allows you to clear the field.
|
Port
|
Displays the port number of the backup real server.
|
Probe
|
Probe Name
|
Click and do one of the following:
•Select Probe—Opens the Probe Selector dialog box and allows you to select a probe from the list.
•Create Probe—Opens the Add Probe dialog box and allows you to create new probes. For more information, see "Adding Probes" section on page 10-4.
•Clear Probe—Allows you to clear the field.
|
Tag
|
Enter the tag for the probe.
|
Adding an Unnamed Real Server
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Click Add. The Add Server Farm dialog box appears.
Step 3 Select the Real Server tab in this dialog box.
Step 4 Click Add, and choose Create Unnamed Real Server from the options.
The Add Unnamed Real Server dialog box appears, displaying the following columns.
Column
|
Description
|
IP Address
|
Enter the IP address of the destination.
|
Port
|
Enter the port number.
|
Min. Connections
|
Enter the minimum number of connections for the real server.
|
Max. Connections
|
Enter the maximum number of connections for the real server.
|
Weight
|
Enter the weight assigned to the real server.
The weight identifies the capacity of the real server compared to other real servers in the server farm.
|
Redirect Virtual Server
|
Click and do one of the following:
•Select Redirect Virtual Server—Opens the Redirect Virtual Server Selector dialog box. It allows you to select a redirect virtual server from the list.
•Create Redirect Virtual Server—Opens the Add Redirect Virtual Server dialog box and allows you to add a redirect virtual server. For more information, see Adding a Redirect Virtual Server.
•Clear Redirect Virtual Server—Allows you to clear the field.
|
Local SSL
|
Select the check box to indicate that the real server is the SSL daughter card.
|
Status
|
Specify the status of the real server.
|
Backup Real Server
|
Name
|
Click and do one of the following:
•Select Named Backup Real Server—Opens the Backup Real Server Selector dialog box and allows you to select a named backup real server from the list.
•Select Unnamed Backup Real Server—Opens the Backup Real Server Selector dialog box and allows you to select an unnamed backup real server from the list.
•Clear Backup Real Server—Allows you to clear the field.
|
Port
|
Displays the port number of the backup real server.
|
Probe
|
Probe Name
|
Click and do one of the following:
•Select Probe—Opens the Probe Selector dialog box and allows you to select a probe from the list.
•Create Probe—Opens the Add Probe dialog box and allows you to create new probes. For more information, see Adding Probes, page 10-4.
•Clear Probe—Allows you to clear the field.
|
Tag
|
Enter the tag for the probe.
|
Editing a Real Server
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Click the Add button provided at the end of the table.
The Add Server Farm dialog box appears.
Step 3 Select the Real Server tab in this dialog box.
Step 4 Select a real server and click Edit.
The Edit Real Server dialog box appears, displaying the following columns.
Field
|
Description
|
IP Address
|
(For unnamed real servers) Enter the IP address of the real server.
|
Port
|
Enter the port number.
|
Real Server
|
(For the named real server) IP address of the named real server.
|
Min. Connections
|
Enter the minimum number of connections for the real server.
|
Max. Connections
|
Enter the maximum number of connections for the real server.
|
Weight
|
Enter the weight assigned to the real server.
The weight identifies the capacity of the real server compared to other real servers in the server farm.
|
Redirect Virtual Server
|
Click and do one of the following:
•Select Redirect Virtual Server—Opens the Redirect Virtual Server Selector dialog box. It allows you to select a redirect virtual server from the list.
•Create Redirect Virtual Server—Opens the Add Redirect Virtual Server dialog box and allows you to add a redirect virtual server. For more information, see Adding a Redirect Virtual Server.
•Clear Redirect Virtual Server—Allows you to clear the field.
|
Local SSL
|
Select the check box to indicate that the real server is the SSL daughter card.
|
Status
|
Specify the status of the real server.
|
Back Up Real Server
|
Name
|
Click and do one of the following:
•Select Named Backup Real Server—Opens the Backup Real Server Selector dialog box and allows you to select a named backup real server from the list.
•Select Unnamed Backup Real Server—Opens the Backup Real Server Selector dialog box and allows you to select an unnamed backup real server from the list.
•Clear Backup Real Server—Allows you to clear the field.
|
Port
|
Displays the port number of the backup real server.
|
Probe
|
Probe Name
|
Click and do one of the following:
•Select Probe—Opens the Probe Selector dialog box and allows you to select a probe from the list.
•Create Probe—Opens the Add Probe dialog box and allows you to create new probes. For more information, see Adding Probes, page 10-4.
•Clear Probe—Allows you to clear the field.
|
Tag
|
Enter the tag for the probe.
|
Redirect Virtual Servers
You can specify a virtual server to receive traffic redirected by a server farm. When you map real servers to redirect virtual servers, it provides persistence for clients to real servers across TCP sessions.
If the redirect virtual server does not have any real servers available, you need to specify a backup or relocation string sent in response to HTTP requests.
To see the details of the redirect virtual servers that you have configured for a server farm:
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Select a server farm from the object selector.
Step 3 Click the Redirect Virtual Server button. The Redirect Virtual Server dialog box appears, displaying the following columns:
Column
|
Description
|
Name
|
Name of the redirect virtual server.
|
SSL Port
|
SSL port number. The range is from 1 to 65535 or one of the following:
•HTTP
•WWW
•FTP
|
Status
|
Specify the status of the redirect virtual server.
|
From this dialog box, you can do the following:
•Click Add to add a redirect virtual server. For more information, see Adding a Redirect Virtual Server.
•Select a redirect virtual server and click Edit to edit the configurations of the redirect virtual server. For more information, see Editing Redirect Virtual Servers.
Adding a Redirect Virtual Server
You can specify a virtual server to receive traffic redirected by a server farm. When you map real servers to redirect virtual servers, it provides persistence for clients to real servers across TCP sessions.
If the redirect virtual server does not have any real servers available, you need to specify a backup or relocation string sent in response to HTTP requests.
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Select the required server farm from the object selector.
Step 3 Click the Redirect Virtual Server button.
The Redirect Virtual Server dialog box appears.
Step 4 Click Add to add a new redirect virtual server.
The Add Redirect Virtual Server dialog box appears, displaying the following columns.
Column
|
Description
|
Name
|
Specify the name of the redirect virtual server.
|
SSL Port
|
SSL port number. The range is from 1 to 65535 or you can select one of the following from the list:
•HTTP
•WWW
•FTP
|
Status
|
Specify the status of the redirect virtual server.
|
Backup
|
Response
|
Specify the backup response. This is sent in response to redirected HTTP requests.
|
HTTP Status Code
|
Select the HTTP status code. It can be one of the following:
•301—Requested resource has been assigned a new permanent URL.
•302—Requested resource resides temporarily under a different URL.
The default status code is 302.
|
Relocation
|
Response
|
Specify the relocation response. This is sent in response to redirected HTTP requests.
|
HTTP Status Code
|
Select the HTTP status code.
|
Editing Redirect Virtual Servers
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farms in the Setup pane.
Step 2 Select the required server farm from the object selector.
Step 3 Click the Redirect Virtual Server button.
The Redirect Virtual Server dialog box appears.
Step 4 Select a redirect virtual server and click Edit to add a new redirect virtual server.
The Edit Redirect Virtual Server dialog box appears, displaying the following columns.
Column
|
Description
|
Name
|
Specify the name of the redirect virtual server.
|
SSL Port
|
SSL port number. The range is from 1 to 65535 or you can select one of the following from the list:
•HTTP
•WWW
•FTP
|
Status
|
Specify the status of the redirect virtual server.
|
Backup
|
Response
|
Specify the backup response. This is sent in response to redirected HTTP requests.
|
HTTP Status Code
|
Select the HTTP status code. It can be one of the following:
•301—Requested resource has been assigned a new permanent URL.
•302—Requested resource resides temporarily under a different URL.
The default status code is 302.
|
Relocation
|
Response
|
Specify the relocation response. This is sent in response to redirected HTTP requests.
|
HTTP Status Code
|
Select the HTTP status code.
|
NAT Pools
When you configure client Network Address Translation (NAT) pools, NAT converts the source IP address of the client requests into an IP address on the server-side VLAN. You can configure a NAT pool with a range of IP addresses. To configure an NAT pool with a single IP address, you can specify the same IP address for starting and ending IP address.
Related Topics:
• Viewing NAT Pools
• Adding NAT Pools
• Editing NAT Pools
Viewing NAT Pools
Figure 5-3 NAT Pools Window
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farm in the Setup pane.
Step 2 Select NAT Pools from the object selector.
The NAT Pools dialog box appears, displaying the following columns.
Column
|
Description
|
Name
|
Name of the NAT pool.
|
Start IP Address
|
The starting IP address of the range of addresses in the NAT pool. An NAT pool with a single IP address will have the same the IP address for the starting and the ending IP address.
|
End IP Address
|
The ending IP address of the range of addresses in the NAT Pool.
|
Mask
|
The mask IP of the for the associated IP subnet.
|
When you select a NAT pool from the table, you can see the corresponding details:
Column
|
Description
|
Details
|
Name
|
Name of the NAT pool.
|
Start IP Address
|
The starting IP address of the range of addresses in the NAT pool. An NAT pool with a single IP address will have the same the IP address for the starting and the ending IP address.
|
End IP Address
|
The ending IP address of the range of addresses in the NAT Pool.
|
Mask
|
The mask IP of the for the associated IP subnet.
|
Associated Server Farms
|
Name
|
Displays the name of the server farm that has this NAT pool is associated with.
|
From this section, you can do the following:
•Click Add to add NAT Pools. For more information, see Adding NAT Pools.
•Select a NAT pool and click Edit to edit it. For more information, see Editing NAT Pools.
•Select a node and click Delete to delete the NAT Pool.
Adding NAT Pools
Note To create a NAT pool with a single IP address, provide the same IP address in the Start IP Address and End IP Address fields.
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farm in the Setup pane.
Step 2 Select NAT Pools from the object selector.
Step 3 Click Add. The Add NAT Pool dialog box appears, displaying the following columns.
Column
|
Description
|
Name
|
Name of the NAT pool.
|
Start IP Address
|
The starting IP address of the range of addresses in the NAT pool. An NAT pool with a single IP address will have the same the IP address for the starting and the ending IP address.
|
End IP Address
|
The ending IP address of the range of addresses in the NAT Pool.
|
Mask
|
The mask IP of the for the associated IP subnet.
|
Editing NAT Pools
Step 1 Do one of the following:
•Click Home at the top of the window and click Server Farms under Services Dashboard.
Or:
•Click Setup from the task bar and click Server Farm in the Setup pane.
Step 2 Select NAT Pools from the object selector.
Step 3 Click Edit. The Edit NAT Pool dialog box appears, displaying the following columns.
Column
|
Description
|
Name
|
Name of the NAT pool.
|
Start IP Address
|
The starting IP address of the range of addresses in the NAT pool. An NAT pool with a single IP address will have the same the IP address for the starting and the ending IP address.
|
End IP Address
|
The ending IP address of the range of addresses in the NAT Pool.
|
Mask
|
The mask IP of the for the associated IP subnet.
|
