Know that at least two ODRs will be needed for high availability, as shown in Figure 2.
如图2所示，至少需要使用两个ODRs实现高可用性。
If this is the case, then having dedicated ODRs for administrative traffic is the solution.
如果是这种情况的话，那么对管理通信使用专用的ODR就可以解决问题。
On principles of operational independence of data centers, HTTP plug-ins should not be routing to foreign ODRs.
就数据中心的操作独立性而言，HTTP插件不应当被路由到外部 ODR。
Beyond that, the number of ODRs needed will be determined by the amount of load you expect the network to experience.
进一步说，ODR的数量将根据期望网络承载的负载总量来确定。
This pattern consists of one or more on demand routers (ODRs), one or more application servers, and one deployment manager.
该模式由一个或多个随需应变路由器(odr)、一个或多个应用服务器以及一个部署管理器组成。
That is, should HTTP plug-ins only route to ODRs in the same data center, or should they be allowed to route to foreign ODRs?
也就是说，HTTP插件只应当路由到同一个数据中心的ODR，还是应当允许它们路由到外面的ODR ？
Though technically possible, do not create topologies where ODRs route traffic across multiple WebSphere Application Server cells.
尽管ODR跨多个 cell 路由通信在技术上是可行的，但是不要创建这种拓扑。
This server enables the client to access JMX notifications generated by the application servers, node agents, and ODRs within the cell.
该服务器可让客户端访问由计算单元中的应用程序服务器、节点代理和odr生成的JMX通知。
The ODRs will route the incoming HTTP requests in an “application scoped” fashion to any target server capable of servicing the request.
ODR将以 “应用程序为作用域”把传入的HTTP请求路由到任何能够处理请求的目标服务器中。
This enables your ODRs to receive routing information (service policies, work classes, and so on) and enables the automatic routing to foreign cells.
通过这样，您的ODR就可以接收路由信息(服务策略、工作类等等)，而且可以实现到外部单元的自动路由。
Therefore, an ODR cluster is not explicitly created or administered from the admin console or through scripting: you will create and administer individual ODRs.
因此，ODR集群并不是从管理控制台或通过脚本显式创建或管理的：您将创建并管理单独的ODR。
Therefore, routing to foreign ODRs could be considered an exception for the purpose of making applications highly available in case all ODRs in a data center fail.
因此，路由到外部ODR可以被视为一个例外，用于在数据中心内的所有odr全部故障的情况下保持应用程序高可用性。
For this dynamic routing to work properly, the core groups containing the ODRs and the core groups containing the target cluster members must be bridged together using CGBS.
要使动态路由能够正确地工作，必须使用CGBS将包含odr的核心组和包含目标集群成员的核心组桥接起来。
There is no need to maintain session affinity at the plug-in router level, as session affinities will be taken care of by the ODRs when the requests are forwarded on to the application servers.
不需要在插件路由器级别维护会话亲缘性，因为当请求被转发给应用服务器时，会话亲缘性将由ODR 负责。
There is no need to maintain session affinity at the plug-in router level, as session affinities will be taken care of by the ODRs when the requests are forwarded on to the application servers.
不需要在插件路由器级别维护会话亲缘性，因为当请求被转发给应用服务器时，会话亲缘性将由ODR 负责。
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