Configure the upper-tier Citrix ADC appliances

Configure each of the upper-tier Citrix ADC appliances as follows.

Configure an upper-tier appliance for n-tier cache redirection by using the command CLI

At the command prompt, type the following commands:

• add service \@ \ \ \

  Run this command for each service to be added.

• add lb vserver \@ ANY \* \ -persistenceType \ -lbMethod \ -m MAC -sessionless ENABLED -cltTimeout \

• bind lb vserver \@ \

  Run this command for each service to be bound.

• enable ns mode l3

• add ns pbr \ \ -srcPort \ -destPort \ -nexthop \ -protocol TCP

• apply ns pbrs

  Run this command after adding all the necessary PBRs.

Configure an upper-tier appliance for n-tier cache redirection by using the GUI

1. Enable L3 mode:
   1. In the navigation pane, click System, and then click Settings.
   2. In the Settings group, click the Configure modes link.
   3. Select the Layer 3 Mode (IP Forwarding) check box.
   4. Click OK.
2. Configure policy-based routing (PBR):
   1. Navigate to System > Network > PBRs.
   2. In the Policy-Based Routing (PBRs) pane, click Add.
   3. Type a name for the PBR.
   4. Select the action as Allow.
   5. In the Next Hop box, type the IP address of the service, which represents a lower-tier appliance.
   6. Select TCP from the Protocol drop-down list.
   7. Type the source port and the range of the destination port corresponding to the lower-tier appliance being added.
   8. Click Create.
   9. In the details pane, select the PBR and click Apply.
   10. Repeat Step (i) to Step (vii) for each lower-tier appliance.
3. Create a service for each lower-tier appliance:
   1. Navigate to Traffic Management > Load Balancing > Services.
   2. In the details pane, click Add.
   3. Specify the name, protocol, IP address, and port. The protocol should be ANY.
   4. Click Create.
4. Configure a load balancing virtual server:
   1. Navigate to Traffic Management > Load Balancing > Virtual Servers.
   2. In the details pane, click Add.
   3. Specify the name, protocol, IP address, and port. The protocol should be ANY and the IP address should be *.
   4. In the Services tab, select the services that represent the lower-tier Citrix ADC appliances.
   5. 在高级选项卡中,选择重定向模式s MAC Based and select the Sessionless check box.
   6. Click Create.