Security

10

 

Port Security

 

 

 

 

 

•Interface Status—Select Lock to enable port security on the interface. When an interface transitions from unlocked to locked, all addresses that had been dynamically learned by the switch on that port are removed from its MAC address list.

•Max No. of Static MAC Addresses—Specify the maximum number of static secure MAC addresses at the port/LAG. Static secure MAC address are configured on the Static Addresses page. The total number of secure addresses cannot exceed 256.

•Max No. of Dynamic MAC Addresses—Specify the maximum number of dynamic secure MAC addresses that can be learned from the port/LAG. The total number of secure addresses cannot exceed 256.

When port-security is enabled on a port, and static or dynamic limits are set to new values, the following rules apply:

-If the new value is greater than the old value, no action is taken for either the dynamic or static addresses.

-If the new value is less than the old value, the following actions are taken:

Dynamic Addresses—The switch initiates a flush of all learned addresses on the port.

Static Addresses—The switch retains the static addresses (up to the static limit) regardless of whether the addresses are configured as secure, permanent, or delete on timeout. It then deletes the remaining static addresses from the MAC address table.

•Action on Violation—Select how the switch handles incoming packets that are not allowed on the locked port:

-Discard—Packets are dropped.

-Forward—Packets are forwarded, but the source MAC addresses are not added to the forwarding database.

-Shutdown—Packets are discarded and the port is shut down.

•Trap Frequency—Specify the number of seconds between traps when a locked port receives incoming packets that are not allowed on the port. This field displays only when the Action of Violation field is set to Discard with Trap.

•Convert dynamic addresses to static—Select Enable to convert all dynamic secure MAC addresses to static secure MAC addresses.

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SLM2008PTNA specifications

Cisco Systems SLM2008PTNA is a robust network switch designed specifically for small to medium-sized businesses. It operates with 8 Fast Ethernet ports, providing advanced features and best-in-class performance to enhance your network infrastructure. This model ensures seamless connectivity for multiple devices, making it an ideal choice for environments requiring reliable network communication.

One of the standout features of the SLM2008PTNA is its Layer 2 switching capabilities. This switch supports auto-negotiation, which allows each port to automatically detect the speed of the connected device and adjust accordingly. This ensures optimal performance and smooth operation across various connected devices. Additionally, the switch supports a non-blocking architecture, ensuring that bandwidth is not shared, which significantly enhances data transmission speed.

Power over Ethernet (PoE) is another key technology incorporated into the Cisco SLM2008PTNA. It simplifies the installation of network devices such as VoIP phones, security cameras, and wireless access points by supplying power through the Ethernet cable. This eliminates the need for separate power sources, reducing installation costs and increasing flexibility in device placement.

Moreover, the SLM2008PTNA comes equipped with advanced security features, such as port security and VLAN support. Port security allows network administrators to restrict access to the network based on MAC addresses, preventing unauthorized access and enhancing network security. The support for Virtual Local Area Networks (VLANs) enables the segmentation of the network into different logical networks, improving traffic management and security within each segment.

The switch is designed for easy management and monitoring, featuring a user-friendly web interface that simplifies configuration. This allows network administrators to quickly set up and manage the device without requiring extensive technical knowledge. Additionally, its compact design makes it suitable for desktop or rack-mount installation, maximizing space efficiency in network environments.

In conclusion, the Cisco Systems SLM2008PTNA is an essential component for small to medium-sized businesses looking to enhance their network performance. With its Layer 2 switching capabilities, Power over Ethernet support, advanced security features, and ease of management, this switch provides a well-rounded solution for modern networking needs, delivering reliable performance and scalability for growth.
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