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		Chapter 26 IP Source Guard

	Table 83 DHCP Snooping (continued)
	LABEL	DESCRIPTION
	Successful	This field displays the number of times the Switch read bindings
	transfers	from or updated the bindings in the DHCP snooping database
		successfully.

	Failed transfers	This field displays the number of times the Switch was unable to
		read bindings from or update the bindings in the DHCP snooping
		database.

	Successful reads	This field displays the number of times the Switch read bindings
		from the DHCP snooping database successfully.

	Failed reads	This field displays the number of times the Switch was unable to
		read bindings from the DHCP snooping database.

	Successful writes	This field displays the number of times the Switch updated the
		bindings in the DHCP snooping database successfully.

	Failed writes	This field displays the number of times the Switch was unable to
		update the bindings in the DHCP snooping database.

	Database detail

	First successful	This field displays the first time the Switch accessed the DHCP
	access	snooping database for any reason.

	Last ignored bindings	This section displays the number of times and the reasons the
	counters	Switch ignored bindings the last time it read bindings from the
		DHCP binding database. You can clear these counters by
		restarting the Switch or using CLI commands. See the CLI
		Reference Guide.

	Binding collisions	This field displays the number of bindings the Switch ignored
		because the Switch already had a binding with the same MAC
		address and VLAN ID.

	Invalid interfaces	This field displays the number of bindings the Switch ignored
		because the port number was a trusted interface or does not exist
		anymore.

	Parse failures	This field displays the number of bindings the Switch ignored
		because the Switch was unable to understand the binding in the
		DHCP binding database.

	Expired leases	This field displays the number of bindings the Switch ignored
		because the lease time had already expired.

	Unsupported vlans	This field displays the number of bindings the Switch ignored
		because the VLAN ID does not exist anymore.

	Last ignored time	This field displays the last time the Switch ignored any bindings
		for any reason from the DHCP binding database.

	Total ignored bindings	This section displays the reasons the Switch has ignored bindings
	counters	any time it read bindings from the DHCP binding database. You
		can clear these counters by restarting the Switch or using CLI
		commands. See the CLI Reference Guide.

	Binding collisions	This field displays the number of bindings the Switch has ignored
		because the Switch already had a binding with the same MAC
		address and VLAN ID.

	Invalid interfaces	This field displays the number of bindings the Switch has ignored
		because the port number was a trusted interface or does not exist
		anymore.

MGS3700-12C User’s Guide

279 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.

One of the standout features of the Metrogigabit switch is its high-density gigabit Ethernet ports, which provide a backbone for reliable data transmission. The switch typically supports multiple 10G SFP+ uplinks, ensuring fast and efficient connections to upstream devices. This capability allows users to configure their networks to handle large volumes of data quickly and without interruption.

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.

Another characteristic that sets the ZyXEL Metrogigabit switch apart is its built-in security features. The device is designed to protect network integrity through mechanisms like port security, access control lists, and advanced authentication protocols. This focus on security helps prepare businesses to counteract potential threats in a landscape where cyber attacks are increasingly sophisticated.

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 279

Models: metrogigabit switch

Table 83 DHCP Snooping (continued)

LABEL

metrogigabit switch specifications