A packet arrives at the router in Figure 2 with destination address 135.11.80.21. Show how it is forwarded. Explain it clearly
A packet arrives at the router in Figure 2 with destination address 135.11.80.21. Show how it is forwarded. Explain it clearly
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
A packet arrives at the router in Figure 2 with destination address 135.11.80.21. Show how it is forwarded. Explain it clearly
Transcribed Image Text:Subnet
address
Next-hop
address
Interface
number
| 145.14.0.0
mo
145.14.64.0
145.14.128.0
145.14.192.0
m1
m2
m3
0.0.0.0
default router
m4
Rest
of
the
Internet
x.y.z.t/n
m4
m3
m2
Subnet mask: /18
mo
m1
145.14.192.1/18
145.14.0.1/18
145.14.192.0/18
145.14.0.0/18
145.14.192.1/18
145.14.64.1/18
145.14.128.0/18
145.14.64.0/18
Site: 145.14.0.0/16
Expert Solution
Step 1
Given,
- Destination address 135.11.80.21.
- Binary Representation of destination address:
- 10000111.00001011.01010000.00010101
IP address classes:
| Class | Leading bits |
Size of network number bit field |
Size of rest bit field |
Start address | End address |
|---|---|---|---|---|---|
| Class A | 0 | 8 | 24 | 0.0.0.0 | 127.255.255.255 |
| Class B | 10 | 16 | 16 | 128.0.0.0 | 191.255.255.255 |
| Class C | 110 | 24 | 8 | 192.0.0.0 | 223.255.255.255 |
| Class D (multicast) | 1110 | not defined | not defined | 224.0.0.0 | 239.255.255.255 |
| Class E (reserved) | 1111 | not defined | not defined | 240.0.0.0 | 255.255.255.255 |
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