Principles of the RIP feature


Routing Information Protocol (RIP) is based on distance vector algorithms. It exchanges routing information through User Datagram Protocol (UDP) packets and uses port 520.
RIP uses hop count to measure the distance to the destination address, and this hop count is called metric value. By default, the number of hops from a device to the connected network is 0, that of hops from the device to a network through another device is 1, and the rest may be deduced by analogy. This means that a metric value is equal to the number of devices through which a device can reach the destination network from its local network. To restrict the convergence time, RIP requires that the metric value be an integer between 0 and 15. A metric value greater than or equal to 16 is defined as infinite, which means the destination network or host is unreachable. Due to this restriction, RIP cannot be applied to large-scale networks.
RIP supports the split horizon and poison reverse functions to improve the performance and prevent routing loops.
For more information, visit Huawei technical support website.

Other related questions:
Principles of HSB
The AR supports the HSB function. HSB implementation involves data synchronization and traffic switching. Data synchronization is performed to ensure consistent information on the master and backup devices when the two devices are working normally. Traffic switching is performed to ensure non-stop service forwarding when the master device fails or recovers. The principle for data synchronization is to establish active and standby channels between devices that back up each other. Session entries of the master device can be synchronized to the backup device through the channel at one time, in real time, or periodically. The principle for traffic switching is based on negotiation between the master device and the backup device using VRRP. When the master device fails, a new master device is elected based on VRRP priorities and the traffic is switched to the master device. For details, see “HSB Configuration�?in AR100&AR120&AR150&AR160&AR200&AR1200&AR2200&AR3200&AR3600 V200R008 CLI-based Configuration Guide - Reliability.

What advantages does RIP-2 have compared with RIP-1
-Routing Information Protocol version 2 (RIP-2) supports the tagging of external routes and uses the routing policy to flexibly control routes based on the tag. -RIP-2 packets contain mask information and support route aggregation and Classless Inter-dom

Principle of BSSID generation
Centralized BSSID management allows an AC to automatically assign a unique BSSID to each VAP. You only need to configure a carrier ID and an AC ID for an AC. Then the AC automatically assigns a BSSID to each VAP. The BSSID allows you to rapidly locate a VAP on a network. A BSSID is generated based on the AC ID, carrier ID, and WLAN ID.

RIP configuration method on an AR router
The Routing Information Protocol (RIP) is a simple Interior Gateway Protocol (IGP) and based on a distance vector algorithm. RIP measures the distance to the destination network based on the hop count. For details about the AR router RIP configuration method, see the URL: Example for Configuring RIP.

How to configure RIP on S series switches
For details on how to configure basic RIP functions on S series switches, click Example for Configuring Basic RIP Functions

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