431

Common Services

The following table lists some commonly-used services and their associated protocols and port numbers. For a comprehensive list of port numbers, ICMP type/ code numbers and services, visit the IANA (Internet Assigned Number Authority) web site.

•Name: This is a short, descriptive name for the service. You can use this one or create a different one, if you like.

•Protocol: This is the type of IP protocol used by the service. If this is TCP/ UDP, then the service uses the same port number with TCP and UDP. If this is User-Defined, the Port(s) is the IP protocol number, not the port number.

•Port(s): This value depends on the Protocol. Please refer to RFC 1700 for further information about port numbers.

•If the Protocol is TCP, UDP, or TCP/UDP, this is the IP port number.

•If the Protocol is USER, this is the IP protocol number.

•Description: This is a brief explanation of the applications that use this service or the situations in which this service is used.

Table 151 Commonly Used Services

NAME	PROTOCOL	PORT(S)	DESCRIPTION
AH	User-Defined	51	The IPSEC AH (Authentication Header)
(IPSEC_TUNNEL)			tunneling protocol uses this service.

AIM/New-ICQ	TCP	5190	AOL’s Internet Messenger service. It is
			also used as a listening port by ICQ.

AUTH	TCP	113	Authentication protocol used by some
			servers.

BGP	TCP	179	Border Gateway Protocol.

BOOTP_CLIENT	UDP	68	DHCP Client.

BOOTP_SERVER	UDP	67	DHCP Server.

CU-SEEME	TCP	7648	A popular videoconferencing solution from
	UDP	24032	White Pines Software.
	UDP	24032

DNS	TCP/UDP	53	Domain Name Server, a service that
			matches web names (for example
			www.zyxel.com) to IP numbers.

MGS3700-12C User’s Guide

431 metrogigabit switch specifications

ZyXEL Communications has long been a prominent player in the networking hardware industry, providing innovative solutions that cater to both business and consumer markets. Among their notable offerings is the Metrogigabit switch, a device designed to meet the high demands of modern networks.

The ZyXEL Metrogigabit switch is primarily aimed at service providers and large enterprises, recognizing the need for seamless connectivity in an increasingly digital world. This switch is engineered for scalability, enabling users to effortlessly expand their network as their operational needs grow. With support for high bandwidth, it is particularly suited for environments requiring extensive data traffic management, such as data centers and campus networks.

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In terms of technology, the Metrogigabit switch leverages advanced Layer 2 and Layer 3 functionalities. This includes features such as VLAN support for traffic segmentation, Quality of Service (QoS) for prioritizing mission-critical applications, and robust multicast management. These capabilities contribute to enhanced network efficiency and performance.

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Moreover, the switch is equipped with a user-friendly management interface, which simplifies the process of monitoring and configuring network settings. This is complemented by support for SNMP and RMON, allowing network administrators to leverage tools for effective performance monitoring.

In summary, the ZyXEL Metrogigabit switch is an essential tool for organizations seeking robust performance, reliability, and security in their networking infrastructure. With its high-density ports, flexible configuration options, and comprehensive management features, it provides a strong foundation for building efficient and scalable networks. Whether for service providers or enterprises, this switch stands out as a reliable choice in the fast-evolving technological landscape.

ZyXEL Communications metrogigabit switch manual 431, Commonly Used Services

Models: metrogigabit switch

Common Services

Table 151 Commonly Used Services

NAME

PROTOCOL

PORT(S)

DESCRIPTION

metrogigabit switch specifications