• KASUS 1 KERAN

b(t)=1
a(t) =

a(n) = b(n) + c(n)

• KASUS 2 KERAN

TCP/IP Tutorial and Technical Overview

http://www.redbooks.ibm.com/abstracts/gg243376.html

Table of contents

Part 1. Core TCP/IP protocols
Chapter 1. Architecture, history, standards, and trends
Chapter 2. Network interfaces
Chapter 3. Internetworking protocols
Chapter 4. Transport layer protocols
Chapter 5. Routing protocols
Chapter 6. IP multicast
Chapter 7. Mobile IP
Chapter 8. Quality of service
Chapter 9. IP version 6
Chapter 10. Wireless IP

Part 2. TCP/IP application protocols
Chapter 11. Application structure and programming interfaces
Chapter 12. Directory and naming protocols
Chapter 13. Remote execution and distributed computing
Chapter 14. File-related protocols
Chapter 15. Mail applications
Chapter 16. The Web
Chapter 17. Network management
Chapter 18. Wireless Application Protocol
Chapter 19. Presence over IP

Part 3. Advanced concepts and new technologies
Chapter 20. Voice over Internet Protocol
Chapter 21. Internet Protocol Television
Chapter 22. TCP/IP security
Chapter 23. Port based network access control
Chapter 24. Availability, scalability, and load balancing
Appendix A. Multiprotocol Label Switching

Knowledge of L3 and L4

L3 contain:
IP source
IP destination



L4 contain:

Compression and decompression

Compression = Pemadatan
Suppose:
ff ff ff ff
0a 0b 0b 0a
ff  0a 0a 0f
ff 0a 0f 0f

ff 04 0a 0b
02

QoS

QoS = against the classic FIFO. Melawan FIFO klasik.

FIFO menyebabkan semua trafik sama. Trafik yang berurgensi lebih penting di

QoS bisa dilihat di penerbangan.
Kelas Ekonomi
Kelas Bisnis

Atau gak usah jauh-jauh, analaogi QoS bisa dilihat di tukang pangkas.
Jumlah tukang pangkas
Jumlah rata-rata pasien per tukang pangkas per jam.


QoS mechanism:
1. Classification --> NBAR and DSCP
2. Marking --> CB-Marking
3. Congestion Management --> LLQ
4. Shaping --> CB-Shaping or FRTS
5. Link Efficiency --> Header Compression and LFI

QoS mechanism: How can we implement this below picture:


1st. define how many queue? 5

Parameter link telekomunikasi

1. SNR Margin
2. Line attenuation
3. Data Rate
4. CRC
5. FEC
6. Frame Loss


Link parameter
1. Link
2. Link interface (Network Adapter)

Link capability:
1. A point only can be to one point
2. A point can be to multi point

Cisco DHCP

1. Using IP Helper Addresses for DHCP
Router#configure terminal
Router1(config)#interface Ethernet 0
Router1(config-if)#ip helper-address 172.25.1.1
Router1(config-if)#ip helper-address 172.25.10.7
Router1(config-if)#exit
Router1(config)#end
Router1#

The ip helper-address configuration command allows the router to forward local DHCP requests to one or more centralied DHCP servers.

2. Limiting the impact of IP Helper Address
Router1# configure terminal
Router1(config)#no ip forward-protocol udp tftp
Router1(config)#no ip forward-protocol udp nameserver
Router1(config)#no ip forward-protocol udp domain
Router1(config)#no ip forward-protocol udp time
Router1(config)#no ip forward-protocol udp netbios-ns
Router1(config)#no ip forward-protocol udp netbios-dgm
Router1(config)#no ip forward-protocol udp tacacs
Router1(config)#end
Router1#

After configuring IP helper addresses, you suffer from high link utilization / high CPU utilization on the DHCP server.

3. Using DHCP to Dynamically Configure Router IP address
Router1#configure terminal
Router1(config)#interface FastEthernet0/1
Router1(config-ig)#ip address dhcp
Router1(config-if)#end
Router1#

The ip address dhcp configuration command allows ther router to obtaion the address information for an interface dynamically.

Router1#show ip interface
FastEthernet0/1 is up, line protocol is up
    Internet address is 172.25.1.57/24
    Broadcast address is 255.255.255.255
    Address determined by DHCP
    MTU is 1500 bytes
    <removed for brevity>

4. Dynamically allocating Client IP address via DHCP

5. Defining DHCP Configuration options
Router1#configure terminal
Router1(config)#ip dhcp pool ORAserver
Router1(dhcp-config)#host 172.25.1.34 255.255.255.0
Router1(dhcp-config)#client-name bigserver
Router1(dhcp-config)#default-router 172.25.1.1 172.25.1.3
Router1(dhcp-config)#domain-name oreilly.com
Router1(dhcp-config)#dns-server 172.25.1.1 10.1.2.3
Router1(dhcp-config)#netbios-name-server 172.25.1.1
Router1(dhcp-config)#netbios-node-type h-node
Router1(dhcp-config)#option 66 ip 10.1.1.1
Router1(dhcp-config)#option 33 ip 192.0.2.1 172.25.1.3
Router1(dhcp-config)#option 31 hex 01
Router1(dhcp-config)#lease 2
Router1(dhcp-config)#exit
Router1(config)#end
Router1#

RFC 2132 defines a large number of standard configurable options.

 6. Allocating static IP address with DHCP
You want to configure 
Router1#configure terminal
Router1(config)#ip dhcp pool IAN
Router1(dhcp-config)#host 172.25.1.13 255.255.255.0
Router1(dhcp-config)#client-identifier 0100.0103.85e9.87
Router1(dhcp-config)#client name win2k
Router1(dhcp-config)default-router 172.25.1.1
Router1(dhcp-config)#exit
Router1(config)#end
Router1#

7. Configuring a DHCP database client
You want to backup your database DHCP address assignment to another device so that you won't lose it if the router reloads.

Router1#configure terminal
Router1(config)#


8. Configuring multiple dhcp server per 1 subnet
You want to
Router1# configure terminal
Router1(config)#ip dhcp pool 172.22.1.0/24
Router1(dhcp-config)# network 172.22.1.0 255.255.255.0
Router1(dhcp-config)# domain-name Oreilly.com