Citrix NetScaler EE, Руководство по установке и настройке

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Configuring the Appliance
Sep 09, 2014
Repeat the following procedure for each appliance in the cluster:
1. Fill in the WCCP clustering
Deployment Worksheet .
2. Navigate to Configuration > Appliance Settings > WCCP page.
3. Click Enable to enable WCCP mode on the appliance.
4. Select Clust er Clust er (Mult iple Caches) (Mult iple Caches) option.
5. Fill in parameters in the Select Select SD-WAN Clust er SD-WAN Clust er section.
6. Enter T5 from your worksheet as the Cache 1 IP, T6 as the Cache 2 IP, T2 as the Subnet Mask, and T1 as the Gateway.
Click Save Save. The Conf igure Conf igure Service Group Service Group section appears.
7. In the Service Group Details section, specify the WAN and LAN service groups (T11 and T12 from your worksheet).
8. In the Priority field, select 100 100 (in practice this value is somewhat arbitrary).
9. From the Protocol list, select T CP T CP .
10. In the DC Algorithm field, select Det erminist ic Det erminist ic or Least Least Disrupt ive Disrupt ive. “Deterministic” is always safe to use, and should be
used if you are using only two appliances, or are using multiple routers. “Least Disruptive” disrupts fewer user sessions on
failover when used with clusters of three or more appliances, but has restrictions on its use.
11. Set Service Group Pair St at us Service Group Pair St at us to On.
12. If your router is configured to require a password, enter the password in the Service Group Service Group Password Password field. Otherwise,
leave the field blank.
13. In the Rout er Communicat ions Det ails Rout er Communicat ions Det ails section, enter the IP address of the router (T8 on your worksheet: often
identical to T1 as well). This is the IP address of the appliance-facing router interface. If you use multiple routers to
communicate with the appliance, list them all here.
14. From the Router Forwarding list, select Level 2 or GRE, according to the capabilities of your router. Use Level 2 if you can,
and GRE if you must.
15. For the Mask Value, enter the value you determined from the WCCP Clustering worksheet. This is a critical value: a poor
choice will result in poor load-balancing or none at all.
16. Click Create. This creates the WAN and LAN service groups.
17. On the Configuration > Optimization Rules > Link Definitions page, change the bandwidth limits on each defined WAN
to 95% of the aggregate speed of all your WANs. This prevents the link from being under-utilized when load-balancing is
imperfect. If ICA (XenApp/XenDesktop) is the dominant use, set each appliance to (95% of WAN bandwidth)/N, where N
is the number of appliances (or twice the number of appliances if they are SD-WAN 4000 or 5000 units), to divide the
bandwidth equally among the appliances. This latter method is most appropriate for applications with large numbers of
active connections that have relatively low bandwidth requirements.