How a router determines the path to send its packets?
When a router receives a packet, the router checks its routing table to determine if the destination address is for a system on one of it’s attached networks or if the message must be forwarded through another router. It then sends the message to the next system in the path to the destination.
How do routers determine the next hop?
To determine the next hop for a given packet, the router will compare it to each of the entries in the routing table (by anding it with the netmask and comparing it to the network address). It will forward the packet to the first next-hop that matches.
What protocol will the routers use to determine the most optimal path to forward the traffic?
BGP
Border Gateway Protocol (BGP) The BGP Best Path Selection Algorithm is used to select the best routes for data packet transfers. If you don’t have any custom settings then BGP will select routes with the shortest path to the destination.
What are two examples of routers choosing for best paths?
Routers select best routes based on the following criteria: Longest prefix match: Routers select routes with the longest match to the destination address in the forwarded packet. For example if a packet is destined to 192.168. 12.1 and the router has 192.168.
Which attribute does a router use to select the best path when two or more different routes to the same destination exist from two different routing protocols?
Administrative distance is the feature used by routers to select the best path when there are two or more different routes to the same destination from different routing protocols. Administrative distance defines the reliability of a routing protocol.
Is next hop the same as gateway?
When configuring network devices the hop may refer to next hop. Next hop is the next gateway to which packets should be forwarded along the path to their final destination.
Why is NAT not needed in IPv6?
The end-to-end connectivity problems that are caused by NAT are solved because the number of routes increases with the number of nodes that are connected to the Internet. Answers Explanation & Hints: The large number of public IPv6 addresses eliminates the need for NAT.
How do you determine what routing protocol is being used?
show ip route –command will give you the output of running protocol and routes on cisco routers, you can identify the which routing protocol is running on routers by its codes.
Which attribute does a router use to select the best path when two or more different routes?
How does OSPF select route?
If there are multiple routes to a network with the same route type, the OSPF metric calculated as cost based on the bandwidth is used for selecting the best route. The route with the lowest value for cost is chosen as the best route.
How does a router determine the best path for a packet?
To determine the best path, the router searches its routing table for a network address that matches the destination IP address of the packet. The routing table search results in one of three path determinations:
How does a router choose the fastest route?
Routers figure out the fastest data path between devices connected on a network, and then send data along these paths. To do this, routers use what’s called a “metric value,” or preference number. If a router has the choice of two routes to the same location, it will choose the path with the lowest metric. The metrics are stored in a routing table.
How does the routing process choose the best path?
As each routing process receives updates and other information, it chooses the best path to any given destination and attempts to install this path into the routing table.
How does the router decide which routes to install?
The router decides whether or not to install the routes presented by the routing processes based on the administrative distance of the route in question. If this path has the lowest administrative distance to this destination (when compared to the other routes in the table), it’s installed in the routing table.