44CHAPTER 3: SETTING UP FOR MANAGEMENT

Viewing IP Information via the Console Port

You are now ready to view the automatically allocated IP information using the command line interface.

1Connect your Switch to the network using an Ethernet cable. As soon as a network connection is made the Switch begins the automatic IP configuration process.

The automatic IP configuration process usually completes within one minute.

If there is no response from a DHCP server within 30 seconds, the Auto-IP configuration mechanism attempts to allocate the default IP address 169.254.100.100. If this address is not available, it then allocates an IP address in the range of 169.254.x.y (where x is in the range 1 to 254, and y is in the range 0 to 255).

2The command line interface login sequence begins as soon as the Switch detects a connection to its console port.

If the login prompt does not begin immediately, press Return a few times until it starts.

3At the login and password prompts, enter admin as your user name and press Return at the password prompt. If you have logged on correctly, the top-level menu of the command line interface is displayed as shown in the example in Figure 14.

Figure 14 Example top-level command line interface menu

Menu options: --------------

3Com

Superstack 3 Switch 4200---------------

bridge

- Administer

bridge-wide parameters

gettingStarted

- Basic device configuration

logout

- Logout of the Command Line Interface

physicalInterface

- Administer

physical interfaces

protocol

- Administer

protocols

security

- Administer

security

system

- Administer

sytem-level functions

trafficManagement

- Administer

traffic management

Type ? For help

 

 

-------------------------------

(1)-----------------------------------

Select menu option:

 

 

 

 

 

4At the Select menu option prompt enter the protocol ip interface summary command. At the Select IP interfaces

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3Com 4226T, 4228G, 4250T manual Viewing IP Information via the Console Port, Example top-level command line interface menu

4250T, 4226T, 4228G specifications

The 3Com 4228G, 4226T, and 4250T are professional-grade network switches designed for businesses seeking to enhance their network infrastructure. These models offer robust performance and reliability, catering to various networking needs, from small offices to large enterprise environments.

The 3Com 4228G switch is a 28-port gigabit Ethernet switch designed for high-bandwidth applications. It provides 24 Gigabit Ethernet ports with 802.3af Power over Ethernet (PoE) capability, allowing devices such as IP phones and wireless access points to be powered directly through the Ethernet cables. This feature simplifies installation and reduces additional cabling costs. The switch also supports VLAN tagging for network segmentation, improving security and performance. Its advanced traffic management lets IT administrators prioritize network traffic effectively, ensuring critical applications receive the necessary bandwidth.

On the other hand, the 3Com 4226T is a 26-port gigabit Ethernet switch, primarily designed for environments requiring a high level of connectivity without PoE. It offers similar features to the 4228G, such as VLAN support and enhanced traffic management capabilities. The 4226T is ideal for businesses that do not require power over Ethernet yet need reliable, high-speed networking capabilities. With 26 ports, this switch is an excellent choice for medium-sized enterprises looking to upgrade their network infrastructure without overwhelming their existing resources.

The 3Com 4250T is a more advanced switch, offering 48 Gigabit Ethernet ports and a robust feature set suitable for more complex networking environments. It includes Layer 2 and Layer 3 functionality, allowing for advanced routing and switching capabilities, making it highly adaptable to various network designs. The 4250T also simplifies network management through its extensive configuration options and support for IPv6. Moreover, it features an efficient cooling system and reduced power consumption, aligning with today’s growing demand for energy-efficient solutions.

All three models utilize advanced technologies such as Spanning Tree Protocol (STP) for loop prevention, QoS mechanisms to prioritize traffic, and comprehensive security features to protect the network from unauthorized access. With their different port configurations and capabilities, the 3Com 4228G, 4226T, and 4250T switches provide exceptional performance and flexibility, making them ideal for businesses aiming to enhance their networking capabilities.