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Besides the above mentioned, RIP ng protocol allows IP v6 route information discovered by the other routing
protocols to be introduced to the route table.
The operation of RIP ng protocol is shown below:
1．
Enable RIP ng The switch sends request packets to the neighbor layer3 switches by broadc asting; on
receiving the request, the neighbor devices reply with the packets containing their local routing
information.
2．
The Lay er3 switch modifies its local route table on receiving the reply packets and sends triggered
update packets to the neighbor devices to advertise route update information. On receiving the
triggered update packet, the neighbor lay3 s witches send triggered update packets to their neighbor
lay3 switches. After a s equence of triggered update packet broadcast, all layer3 switches get and
maintain the latest route information.
In addition, RIPng layer3 switches will advertise its local route table to their neighbor devices every 30
seconds. On receiving the packets, neighbor devices maintain their local route table, select the best route and
advertise the updated information to their own neighbor devices, so that the updated routes are globally valid.
Moreover, RIP uses a timeout mechanism for outdated route, that is, if a switch does not receive regular
update packets from a neighbor within a certain interval (invalid timer interval), it considers the route from that
neighbor invalid, after holding the route fro a certain interval (garbage collect timer interval), it will delet e that
route.
As a result of continuous development of IP v6 network, it has the network environment of nonsupport IP v6
sometimes, so it needs to do the IP v6 operation by tunnel. Therefore, our RIPng supports configuration on
configure tunnel, and passes through nonsupport IP v6 network by unicast packet of IP v4 encapsulation.
36.2 RIPng Configuration Task List
RIP ng Configuration Task List:
1.
Enable RIPng protoc ol (required)
（1）
Enable/disable RIPng protocol
（2）
Configure the interfaces running RIPng protocol
2.
Configure RIPng protocol parameters (optional)
（1）
Configure RIPng sending mechanism
1)
Configure specified RIP ng packets transmission address
（2）
Configure RIP routing parameters
1)
Configure route introduction (default route metric, configure routes of the other prot ocols to be
introduced in RIP ng)
2)
Configure the route deviation
3)
Configure and apply rout e filter
4)
Configure split horizon
3.
Configure other RIPng paramet ers
(1) Configure timer for RIPng update, timeout and hold-down
4.
Delet e the specified route in RIP ng route table
5.
Configure RIPng route aggregation
（1）
Configure aggregation route of IP v6 route mode
（2）
Configure aggregation route of IP v6 interface configuration mode
（3）
Display IP v6 aggregation route information
36-2
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Troubleshooting
