Administration

3

 

File Management

 

 

 

 

 

NOTE The switch requires the boot file name to have a .cfg extension.

Default Network Configuration File

If Default Network Configuration Mode is enabled, the switch downloads the configuration file <hostname>.cfg when any one of the following conditions occurs:

•A host specific configuration file is not specified or configured.

•A host specific configuration file does not exist on the TFTP server.

•A failure occurs during the download.

NOTE The startup configuration file cannot be present on the switch. If the startup configuration file is present on the switch, this process is not initiated.

To resolve the hostname in the configuration file, the switch first downloads fp-net.cfg from the TFTP server. The fp-net.cfg file is referred as the default network configuration file and contains one or more IP-address-to-host-name mappings. The switch determines the hostname from the mappings with its IP address. If there is no mapping, the switch uses reverse DNS lookup to discover the hostname.

The following is a sample fp-net.cfg file.

config

...

ip host switch_to_setup 192.168.1.10 ip host another_switch 192.168.1.11

... <other hostname definitions> exit

When a hostname has been determined, the switch issues a TFTP request for a file named <hostname>.cfg, where <hostname> is the first eight characters of the switch hostname.

The switch uses the IP address to do a DNS reverse name lookup. For example, if the switch IP address is 192.168.1.10, the hostname becomes switch_t.cfg (the first eight characters in the example above).

The default switch name is derived as switch+last 6 digits of hex address. The mapping file should have the hostnames such as ip host switchD99FA5 192.168.1.10. Then, the hostname learned for the <hostname.cfg> is switchD9.cfg for the switch having the IP address 192.168.1.10.

If the switch is unable to map its IP address to a hostname, Auto Configuration sends TFTP requests for the default configuration file host.cfg.

Cisco Small Business SG200 Series 8-port Smart Switch

65

Page 64 Page 66
Page 65
Image 65
Cisco Systems SLM2008PTNA manual Default Network Configuration File
Page 64 Page 66

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.
Top Page Image Contents