Alteon OS Application Guide

Table 7-2Well-Known Application Ports

Number

TCP/UDP

Number

TCP/UDP

Number

TCP/UDP

 

Application

 

Application

 

Application

 

 

 

 

 

 

20

ftp-data

79

finger

179

bgp

21

ftp

80

http

194

irc

22

ssh

109

pop2

220

imap3

23

telnet

110

pop3

389

ldap

25

smtp

111

sunrpc

443

https

37

time

119

nntp

520

rip

42

name

123

ntp

554

rtsp

43

whois

143

imap

1645, 1812

Radius

53

domain

144

news

1813

Radius Accounting

69

tftp

161

snmp

1985

hsrp

70

gopher

162

snmptrap

 

 

 

 

 

 

 

 

Table 7-3

Well-Known TCP flag values

 

 

Flag

Value

 

 

URG

0x0020

ACK

0x0010

PSH

0x0008

RST

0x0004

SYN

0x0002

FIN

0x0001

 

 

„Packet Format

†Ethernet format (eth2, SNAP, LLC)

†Ethernet tagging format

†IP format (IPv4, IPv6)

„Egress port packets

42C4911, January 2007

Chapter 7: Quality of Service „ 127

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Nortel Networks 42C4911 manual 2Well-Known Application Ports
Page 126 Page 128

42C4911 specifications

Nortel Networks 42C4911 is a key hardware component designed to meet the needs of modern telecommunications infrastructure. As part of Nortel's extensive portfolio, the 42C4911 has made a significant impact on network design and operation, particularly in enterprises requiring reliable and efficient communication solutions.

One of the standout features of the 42C4911 is its modularity. This allows for flexible configurations and upgrades, enabling organizations to adapt to changing technology requirements and business demands. The design philosophy behind the 42C4911 emphasizes scalability, allowing users to start with a basic setup and expand it as their networking needs grow. This feature is particularly appealing to medium and large enterprises that anticipate increased data and communication requirements over time.

In terms of technology, the 42C4911 supports various telecommunications standards, making it versatile for multiple applications. It typically integrates with other Nortel equipment and can work with third-party devices, ensuring seamless interoperability across different platforms. This is critical as organizations look to create unified communications systems that can handle voice, data, and video traffic efficiently.

The 42C4911 is known for its robust performance and reliability. It is designed to operate continuously under demanding conditions, which is essential for organizations that rely on constant connectivity for their operations. Its built-in redundancy features help safeguard against potential failures, thus enhancing the overall stability of the network. This reliability is further complemented by Nortel's commitment to high-quality manufacturing standards, ensuring that users receive a durable and efficient product.

Security is another major consideration for any networking device, and the 42C4911 provides advanced security features to protect sensitive data. With increasing cybersecurity threats, organizations prioritize devices that offer strong encryption and access control mechanisms. The 42C4911 addresses these needs while facilitating secure communication channels for users, which is essential in today's increasingly interconnected world.

Overall, the Nortel Networks 42C4911 stands out as a versatile and powerful component in the telecommunications landscape. Its modular design, compatibility with diverse technologies, reliability, and emphasis on security make it an appealing choice for organizations looking to enhance their networks. As companies continue to navigate the complexities of communication, devices like the 42C4911 play a crucial role in ensuring that they remain connected and efficient.
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