The summary of the RIP experiment

The experimental topology is as follows:

Experimental purposes:

1. Observe the routing protocol time, such as update time, Holdtime, refresh time and Hello time, through the experimental observation

A: Rip every 30 seconds to broadcast the routing table to its neighbors, the route has an invalid time of 180 seconds, which means that in 180 seconds no update is received for the route, the route entry is set to possibly down, and if an update to the route is not received within 240 seconds, the route entry is deleted. Its holdtime time is 180 seconds.

2. Observe the default route of the routing protocol how to advertise

The advertisement for the default route is advertised using the IP Default-network main class network number. You do not have to advertise this network to the RIP routing process. A neighbor will receive a default route to this router

3. Summary routing is implemented in the main class network boundary or any interface

When the implementation of the rollup route is manually summarized at the boundary of the main class network, the neighbor receives a rollup route with no detail routes. If summarized elsewhere, the details and totals are communicated to the neighbors.

RIP does not support the aggregation of networks into a network, but it can support the transmission of a super network.

4. Authentication of routing protocols

Use plaintext or MD5 authentication

Key Chain Name

Key serial Number

Key-string Key

Interface under:

IP RIP authentication Mode

IP RIP authentication key-chain key-chain Name

5. Routing protocol uses the distinction is what algorithm, what characteristics

Using the distance vector algorithm, according to the router's hop count metric, the maximum support 15 jump.

Anti-loop: horizontal division, route toxicity reversal, maximum hop count, timer and other methods to prevent ring

6. Routing protocol multicast address, IP protocol number, four layer port number and multicast corresponding MAC address

RIPV1 uses a broadcast route entry update, and its routing update is based on the local metric plus 1 and then sent to the neighbor, the neighbor received the update, directly into the RIP database.

RIPv2 Use multicast update, its multicast address is 224.0.0.9, in Ethernet, multicast MAC address is 00:10:5e:00:00:09

RIP works at the application layer, and it is updated with UDP port 520

See more highlights of this column: http://www.bianceng.cn/Network/lyjs/

7.Debug and the use of the show command and the function and output format

The commands used are

Show ip RIP database

Debug IP Rip

Debug IP RIP events and so on

The specific experimental phenomenon please see the appendix of this article.

This article is from the "Divine Strategy" blog, please be sure to keep this source http://liu008qing.blog.51cto.com/151315/436149