Magnum 8000X Mixed-Media Fiber Hubs

Installation and User Guide (05/ 02)

 

 

 

With this large address table, SPM port modules can serve the needs of medium-sized to large networks. The address tables are flushed periodically to update the network status and to purge any inactive stations from the tables. See the figure and table that follows:

Segment 1

Segment 2

(Bonus Port)

(Inside of Hub)

Segment 1’s packets are forwarded when the destination addresses are NOT in its address table.

Segment 1’s packets are filtered when the destination addresses are in its address table.

100 1 0

SPM Module

Segment 2’s packets are filtered when the destination addresses are in its address table.

Segment 2’s packets are forwarded when the destination addresses are NOT in its address table.

Figure 2.5b: Forwarding vs. Filtering in SPM Modules

Packet

Source

Destination

Address Table

Filter/Forward

Source

Address

Address

Maintenance

Action

Seg. 1

Not in table

Not in table

Add source to table

Forward

Seg. 1

Not in table

In table

Add source to table

Filter

Seg. 1

In table

Not in table

None

Forward

Seg. 1

In table

In table

None

Filter

Seg. 2

Not in table

Not in table

Add source to table

Forward

Seg. 2

Not in table

In table

Add source to table

Filter

Seg. 2

In table

Not in table

None

Forward

Seg. 2

In table

In table

None

Filter

Table 2.5: SPM Port Module Functionality

2.Throughput Increase / Software Transparency

By selectively forwarding packets from the mixed-media hub’s ports (or hub stack’s ports) to the rear-connector port based on its switching logic, an SPM increases the available bandwidth for the users on both the hub side and the rear-segment side of the network. As shown in Figure 2.5b, it keeps the local traffic on each side contained, preventing unnecessary packets and bad packets from traveling to the other segment and using up bandwidth needlessly. This results in more available network bandwidth on both sides and a throughput increase for all users on both segments. An SPM needs

www . GarrettCom . com

11

Page 17 Page 19
Page 18
Image 18
GarrettCom 8000X manual Seg Not in table Add source to table Forward Filter None
Page 17 Page 19

8000X specifications

The GarrettCom 8000X series represents a significant advancement in industrial networking technology, designed specifically for demanding environments that require robust and reliable communication solutions. Known for its versatility and resilience, the 8000X series caters to various industries, including transportation, utilities, and automation, making it a go-to choice for mission-critical applications.

One of the main features of the 8000X is its modular design, allowing users to customize the switch according to their specific networking needs. This feature provides the flexibility to add and remove modules seamlessly, ensuring that the network can adapt as requirements change over time. The modularity also contributes to easier maintenance and upgrades, reducing downtime and enhancing operational efficiency.

The 8000X series is built to operate in harsh environments, with an operating temperature range of -40°C to 85°C, making it suitable for outdoor and industrial applications. Its rugged chassis is designed to withstand vibration and shock, ensuring reliability even in the most challenging conditions.

Equipped with both Ethernet and fiber optic ports, the 8000X series supports a variety of network topologies and facilitates extensive connectivity options. It usually offers multiple gigabit Ethernet ports, allowing for high-speed data transmission. This feature is crucial for applications that demand real-time data processing, such as video surveillance and process control systems.

In terms of security, the GarrettCom 8000X series incorporates advanced features such as VLAN support, access control lists (ACLs), and network monitoring tools. These security measures are essential for protecting sensitive data and maintaining network integrity against potential threats.

The device also supports various network protocols, including IPv4, IPv6, and various industrial protocols such as Modbus. This compatibility ensures that the 8000X can seamlessly integrate into existing infrastructures and communicate effectively with other devices and systems.

Furthermore, the GarrettCom 8000X series is equipped with built-in redundancy features, such as dual power supplies and support for Rapid Spanning Tree Protocol (RSTP), which enhance network reliability and minimize the risk of downtime.

Overall, the GarrettCom 8000X series stands out with its robust construction, modularity, and advanced technology, making it an ideal solution for organizations seeking reliable networking equipment capable of performing under extreme conditions. Its features make it a vital asset for industries focused on maintaining high-performance communication standards.
Top Page Image Contents