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Chapter 13 Spanning Tree Protocol

The following table describes the labels in this screen.

Table 32 Advanced Application > Spanning Tree Protocol > MSTP

LABEL	DESCRIPTION
Status	Click Status to display the MSTP Status screen (see Figure 77 on page
	166).

Active	Select this check box to activate MSTP on the Switch. Clear this
	checkbox to disable MSTP on the Switch.

	Note: You must also activate Multiple Spanning Tree in the
	Advanced Application > Spanning Tree Protocol >
	Configuration screen to enable MSTP on the Switch.
Hello Time	This is the time interval in seconds between BPDU (Bridge Protocol Data
	Units) configuration message generations by the root switch. The
	allowed range is 1 to 10 seconds.

MaxAge	This is the maximum time (in seconds) the Switch can wait without
	receiving a BPDU before attempting to reconfigure. All Switch ports
	(except for designated ports) should receive BPDUs at regular intervals.
	Any port that ages out STP information (provided in the last BPDU)
	becomes the designated port for the attached LAN. If it is a root port, a
	new root port is selected from among the Switch ports attached to the
	network. The allowed range is 6 to 40 seconds.

Forwarding	This is the maximum time (in seconds) the Switch will wait before
Delay	changing states. This delay is required because every switch must
	receive information about topology changes before it starts to forward
	frames. In addition, each port needs time to listen for conflicting
	information that would make it return to a blocking state; otherwise,
	temporary data loops might result. The allowed range is 4 to 30
	seconds. As a general rule:
	Note: 2 * (Forward Delay - 1) >= Max Age >= 2 * (Hello Time + 1)

Maximum hops	Enter the number of hops (between 1 and 255) in an MSTP region
	before the BPDU is discarded and the port information is aged.

Configuration	Enter a descriptive name (up to 32 characters) of an MST region.
Name

Revision	Enter a number to identify a region’s configuration. Devices must have
Number	the same revision number to belong to the same region.

Apply	Click Apply to save your changes to the Switch’s run-time memory. The
	Switch loses these changes if it is turned off or loses power, so use the
	Save link on the top navigation panel to save your changes to the non-
	volatile memory when you are done configuring.

Cancel	Click Cancel to begin configuring this screen afresh.

Instance	Use this section to configure MSTI (Multiple Spanning Tree Instance)
	settings.

Instance	Enter the number you want to use to identify this MST instance on the
	Switch. The Switch supports instance numbers 0-16.

MGS3700-12C User’s Guide

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 164, Configuration screen to enable Mstp on the Switch

Models: metrogigabit switch

Table 32 Advanced Application > Spanning Tree Protocol > MSTP

LABEL

166).

Configuration screen to enable MSTP on the Switch.

Apply

164

metrogigabit switch specifications