Contents
- 1 What is Rreq packet?
- 2 Which protocol updates its path information only if the DestSeqNum of the current packet received is greater than the last DestSeqNum stored at the node?
- 3 What are the four message types of Aodv?
- 4 What is an anomaly in which the routing protocols go back and forth between one route and another?
- 5 Is Igrp a distance vector protocol?
What is Rreq packet?
When a node needs to know a route to a specific destination, it generates an RREQ. The RREQ packet is forwarded by intermediate nodes which also create a reverse route from the destination. This route created from each node from source to destination is a hop-by-hop state and not the entire route as in source routing.
Which protocol updates its path information only if the DestSeqNum of the current packet received is greater than the last DestSeqNum stored at the node?
node
A node updates its path information only if the DestSeqNum of the current packet received is greater or equal than the last DestSeqNum stored at the node with smaller hop-count.
What is meant by AODV and explain about AODV routing protocol?
AODV (Ad-hoc On-demand Distance Vector)[7] is a loop-free routing protocol for ad-hoc networks. It is designed to be self-starting in an environment of mobile nodes, withstanding a variety of network behaviors such as node mobility, link failures and packet losses. At each node, AODV maintains a routing table.
What are the four message types of Aodv?
AODV has four types of messages: RREQ (route request), RREP (route reply), RERR (route error) and hello message. These messages are used in establishing the route between source and destination.
What is an anomaly in which the routing protocols go back and forth between one route and another?
Clarification: Routing feedback is an anomaly in which the routing protocols go back and forth between one route and another. Routing feedback is a reason for avoiding doing route redistribution on two routers between the same two routing domains.
What is the difference between RIP and IGRP?
In Routing Information protocol (RIP), the maximum number of Hop is 15, because it prevents routing loops from source to destination….Difference between RIP and IGRP :
| SR.NO | RIP | IGRP |
|---|---|---|
| 5 | RIP is a distance vector protocol. | IGRP is also a distance vector protocol. |
| 6 | It allow maximum hop count upto 15. | It allow maximum hop count upto 255. |
Is Igrp a distance vector protocol?
Interior Gateway Routing Protocol (IGRP) is a distance vector interior gateway protocol (IGP) developed by Cisco. IGRP is a proprietary protocol. IGRP was created in part to overcome the limitations of RIP (maximum hop count of only 15, and a single routing metric) when used within large networks.