F5+在电信行业应用方案.ppt

大吉大利 1 * * 大吉大利 大吉大利 1 * * 大吉大利 大吉大利 1 * * 大吉大利 大吉大利 1 * * 大吉大利 大吉大利 1 * SIP applications that use UDP are likely to send messages from one port and receive them on another. Furthermore, a SIP application may use the same source port to send messages for more than one transaction. To determine which proxy server is to handle a SIP message, BIG-IP must examine the Call-ID field of all UDP datagrams that are destined to a virtual server that uses a SIP pool. The following illustrates the flow and address/port translations for the initial INVITE message from a SIP client through a load balanced SIP proxy server. Subsequent packets from the client to the proxy server will be routed in the same manner. The downstream SIP host may be either a user agent or server, or another proxy server. Note: The SNAT IP address and the Virtual IP address are the same. * 大吉大利 大吉大利 1 * The following illustrates the flow and address and port translations for the reply message from a downstream SIP host to a SIP client. Subsequent packets from the host to the client will be routed in the same manner. * 大吉大利 大吉大利 1 * * 大吉大利 大吉大利 1 * * 大吉大利 大吉大利 1 * * 大吉大利 大吉大利 1 * * 大吉大利 大吉大利 1 * Either or situation, if you lb firewalls, you can’t do L7. Can’t do IPSec either? SSL, can it only go over 443? * 大吉大利 大吉大利 1 * Hardly worth doing the math. Investment*: Single w/ SSL, Fireproof, LinkProof, and CSD: $100,000 Redundant w/ SSL, Fireproof, LinkProof, and CSD: $200,000 * 大吉大利 大吉大利 1 * * 大吉大利 F5 SIP 总结 为SIP软交换机提供智能的流量管理 支持可扩展的 Dynamicsoft 路由引擎对 SIP 应用 iControl – 为在整个网络架构提供管理和控制支持 Stream Media Cache Internet 电信宽带VOD网络中心 Stream Media Cache 电信宽带VOD网络流量管理方案 F5 BIG IP 5000 VOD Virtual Server ＝{VOD Server Pool; Cache Server Pool} Stream Media Cache Stream Media Cache Media Server Stream Media Cache Cache Server Pool F5 3.DNS 服务节点１ 服务节点 2 服务节点 3 服务节点 4 中心服务节点 Real Player Quick Time 电信宽带VOD技术解决方案 互联网 RAS Back Bone POTS ISDN XDSL DNS服务器集群 Radius服务器集群 四川省数据局DNS和Radius负载均衡解决方案 电信DNS/Radius 解决方案 F5 BIG -IP