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18 docs tagged with "routing"

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BFD

Bidirectional Forwarding Detection (BFD) is a low‑overhead, short‑duration protocol that detects faults in the bidirectional path between two forwarding engines. This includes physical interfaces, sub‑interfaces, data links, and — as far as possible — the forwarding engines themselves, all with very low latency. It operates independently of media, data protocols, and routing protocols.

FAQ

Frequently asked questions.

FAQ

Frequently asked questions.

Moving from ROSv6 to ROSv7

By default, all routes are added to the "main" routing table as it was before. From a configuration point of view, the biggest differences are routing table limit increase, routing table monitoring differences, and how routes are added to specific routing tables (see next example).

Policy Routing

Policy routing steers traffic that matches criteria to a specific gateway. Use it to force selected customers or protocols, such as HTTP traffic, to always use a particular gateway. It can also route local and overseas traffic through different gateways.

Routing Decision

Routing is the process of selecting paths across networks to move packets from one host to another. The path selection, also called the routing decision, relies on a routing information table. That table contains route entries, each of which specifies a destination and the next hop used to reach it. A hop occurs when a packet passes from one network segment to another.