Dell Force10 S25N-S50N FTOS Configuration Guide FTOS 8.4.2.7 E-Series TeraScal - Page 802

www.dell.com | support.dell.com 1.5104M5bMpMbsbpsps Figure 37-1. PBR Example Finance Engineering Marketing Sales Customer Support Operations 451M01bM.5pbsMpbsps With 3 separate internet connections from the Edge Routers, bandwidth can be allotted to meet each department's needs. Some departments will need higher-speed internet access while others will require less bandwidth. Internet As an example, a policy can be applied to route traffic from the Customer Support LAN subnets over the 45 Mbps pipe, while traffic from the Finance LAN subnets can be routed over the 1.5 Mbps pipe. All other departments' traffic could be considered "normal" traffic, with no priority policy applied. To enable a PBR, you create a Redirect List. Redirect lists are defined by rules, or routing policies. The following parameters can be defined in the routing policies or rules: • IP address of the forwarding router (next-hop IP address) • Protocol as defined in the header • Source IP address and mask • Destination IP address and mask • Source port • Destination port • TCP Flags Once a redirect-list is applied to an interface, all traffic passing through it is subjected to the rules defined in the redirect-list. The traffic is forwarded based on the following: 1. Next-hop addresses are verified. If the specified next hop is reachable, then the traffic is forwarded to the specified next-hop. 802 | Policy-based Routing