EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
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Expert Solution & Answer
Chapter 4, Problem R7RQ
Explanation of Solution
Every input port in a high speed router stores a shadow copy of the forwarding table because forwarding of eac...
Expert Solution & Answer
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Explain why each input port on a high-speed router has a shadow copy of the forwarding table.
Explain why each input port of a high-speed router includes a shadow copy of the forwarding table.
(a) What different switching mechanisms exist to forward datagrams from an input port to an
output port in a router?
(b) What are their advantages and disadvantages respectively?
Chapter 4 Solutions
EBK COMPUTER NETWORKING
Ch. 4 - Lets review some of the terminology used in this...Ch. 4 - Prob. R2RQCh. 4 - Prob. R3RQCh. 4 - Prob. R4RQCh. 4 - Prob. R5RQCh. 4 - Prob. R6RQCh. 4 - Prob. R7RQCh. 4 - Prob. R8RQCh. 4 - Prob. R9RQCh. 4 - Prob. R10RQ
Ch. 4 - Prob. R11RQCh. 4 - Prob. R12RQCh. 4 - Prob. R13RQCh. 4 - Prob. R14RQCh. 4 - Prob. R15RQCh. 4 - Prob. R16RQCh. 4 - Prob. R17RQCh. 4 - Prob. R18RQCh. 4 - Prob. R19RQCh. 4 - Prob. R20RQCh. 4 - Prob. R21RQCh. 4 - Prob. R22RQCh. 4 - Prob. R23RQCh. 4 - Prob. R24RQCh. 4 - Prob. R25RQCh. 4 - Prob. R26RQCh. 4 - Prob. R27RQCh. 4 - Prob. R28RQCh. 4 - Prob. R29RQCh. 4 - Prob. R30RQCh. 4 - Prob. R31RQCh. 4 - Prob. R32RQCh. 4 - Prob. R33RQCh. 4 - Prob. R34RQCh. 4 - Prob. R35RQCh. 4 - Prob. P1PCh. 4 - Prob. P2PCh. 4 - Prob. P3PCh. 4 - Consider a datagram network using 32-bit host...Ch. 4 - Consider a datagram network using 8-bit host...Ch. 4 - Consider a datagram network using 8-bit host...Ch. 4 - Prob. P8PCh. 4 - Prob. P9PCh. 4 - Prob. P10PCh. 4 - Prob. P11PCh. 4 - Prob. P12PCh. 4 - Consider sending a 2400-byte datagram into a link...Ch. 4 - Prob. P15PCh. 4 - Prob. P16PCh. 4 - Prob. P17PCh. 4 - Prob. P18PCh. 4 - Prob. P19PCh. 4 - Prob. P20PCh. 4 - Prob. P21PCh. 4 - Prob. P22P
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Similar questions
- Which issues with the router's layer 2 protocol have been found up to this point? In what ways does this new information have an impact? Why does the ICMP request of a PPP-encapsulated router continue to function after the subnet of the serial interface has been changed?arrow_forwardWhat issues have been found in the layer 2 protocol of the router? What does this discovery mean, if anything? Why does an ICMP request sent by a PPP-encapsulated router continue to function after the subnet of the serial interface has been changed?arrow_forwardConsider a datagram network using 8-bit host addresses and the forwarding table below: Prefix Interface 1001 1 10010 2 001 3 0011 4 0100 5 00 6 11 7 1101 8 Others 9 Suppose the following 8-bit datagram arrived at the router: 11011001, 10010100, 00100010, 10110101, 11001010, which interface(s) will they be forwarded?arrow_forward
- What a router does when it gets a packet with an unknown destination network address is described in the following.arrow_forwardWhat shortcomings in the layer 2 protocol of the router have been found? What effects does this finding have? Why does the ICMP request still work in a PPP encapsulated router even after the serial interface subnet is modified?arrow_forwardDefend the need of a shadow forwarding table in a high-speed router's input ports.arrow_forward
- What flaws in the layer 2 protocol for routers have been found? Why does the ICMP request still work in a PPP-encapsulated router even after the serial interface subnet has been changed?arrow_forwardWhich problems with the router's layer 2 protocol have been discovered? What are the implications of this discovery? Why does an ICMP request sent by a PPP-encapsulated router continue to function after the serial interface subnet has been changed?arrow_forwardA bit string, 0111101111101111110, needs to be transmitted at the data link layer: What is the string actually transmitted after bit stuffing?arrow_forward
- What flaws in the router's layer 2 protocol have been discovered? What are the implications of this discovery? Why does an ICMP request continue to function in a PPP encapsulated router even after the serial interface subnet is changed?arrow_forwardto achieve the lowest latency a message is split into 24 packets. every packet has 15 bytes of header. there are 11 hops between the source and the destination. Assume all devices are store-and-forward and it takes 1 ns to transmit 1 byte of data. what is the size of the message?arrow_forwardWhat flaws have been found in the layer 2 protocol of routers, if any? When using a PPP-encapsulated router, why does the ICMP request continue to function even after the subnet of the router's serial interface is changed?arrow_forward
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