Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Find an example of an internet in which the population of group members is sparse, but for which DVMRP is a better multicast routing protocol.
If your organization has an ATM switch or ATM service, find the technical and economic specifications, and then compare the cost of using ATM.
A typical connection between a host and a private ATM switch operates at 155 Mbps. Consider the speed of the bus on your favorite computer.
If IP fragments datagrams for an MTU of 9180 octets, what size fragments result from a datagram that carries a TCP segment of 16K octets? of 24K octets?
The data-driven multicast routing paradigm works best on local networks that have low delay and excess capacity, while the demand-driven paradigm.
If a given link has high probability of corruption, is it better to send redundant copies of a datagram or to send one copy that uses forward error-correcting.
Argue that only two types of multicast are practical in the Internet: statically configured commercial services that multicast to large numbers of subscribers.
Estimate the size of the multicast forwarding table needed to handle multicast of audio from 100 radio stations.
What ATM network topologies are appropriate for a two-level addressing scheme? Characterize situations for which additional levels of hierarchy are useful.
Read about the LANE and MPOA standards that allow ATM to emulate an Ethernet or other local area network.
A large organization that uses ATM to interconnect IP hosts must divide hosts into logical IP subnets.
Measure the throughput and delay of an ATM switch when using TCP. If your operating system permits, repeat the experiment with the TCP transmit.
Are there circumstances under which an SPF protocol can form routing loops? Hint: think of best-effort delivery.
Can you use ICMP redirect messages to pass routing information among interior routers? Why or why not?
Build an application program that sends a request to a router running RIP and displays the routes returned.
DVMRP was derived from RIP. Read RFC 1075 on DVMRP and compare the two protocols. How much more complex is DVMRP than RIP?
IGMP does not include a strategy for acknowledgement or retransmission, even when used on networks that use best-effort delivery.
Consider a function used to convert between delay and hop-count metrics. Can you find properties of such functions that are sufficient to prevent routing loops.
Read the RIP specification carefully. Can routes reported in a response to a query differ from the routes reported by a routing update message? If so how?
Is there any advantage to them knowing the exact set of hosts on a network that belong to a given multicast group?
The standard says that IF' software must arrange to deliver a copy of any outgoing multicast datagram to application programs.
OSPF allows managers to assign many of their own identifiers, possibly leading to duplication of values at multiple sites.
Compare the version of OSPF available under 4BSD UNIX to the version of RIP for the same system. What are the differences in source code size?
The Internet and the Web are not the same thing. What is the difference between the Internet and the Web?
IPv6 is the latest Internet protocol, replacing the IPv4. Although IPv6 is superior to IPv4 in several respects, its implementation requires new hardware