RIPNGRouting Information Protocol Next Generation
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This program aims to make a contribution to the practical teaching of the RIPng for IPv6, facilitating the student-protocol interaction.
With such tear down it is possible to force the routers to recalculate alternate routes and interchange RIPng protocol messages.
After the net 4 network tear down and before the necessary time has passed for the routers to converge by means of the RIPng protocol, communication between nodes n0 and n5 is not possible, and as a consequence node 0 is going to receive ICMPv6 error report messages.
Block 8 creates the RIPng protocol, assigns a value of 10 to the net 5 link and leaves by default the cost value of 1 for the other links.
Line 69 indicates that the RIPng packet number 98, present at moment t=43.02, is sent by R1 to R2 in order to indicate to it that it lost the entries to reach the 2001:0:6::/64 (net 6) and 2001:0:4::/64 (net 4) networks; given that the announced cost is infinite (16).
Running the software generates information which allows students to contrast theoretical concepts of RIPng protocol to the true behavior of said protocol within a simulated network.
When the RIPng protocol is enabled within the intermediate systems, it was possible to verify that the routers send the routing tables periodically every 30 seconds independently from the used Split Horizon strategy, and they also send the tables when there is a specific event, as usually is the reestablishment or tear down of a link.
Within the nodes which operate as routers, a RIPng routing protocol must be additionally installed.