Overview of the EtherSpeedII Switch Modules
TFTP Support
Trivial File Transfer Protocol (TFTP) is a supported Transmission Control Protocol/Internet Protocol (TCP/IP) service you can use to download software and configuration information to the MCP module memory. TFTP allows you to transfer an updated switch agent and configuration files from a remote server to flash memory. You can perform a transfer over the network or through a serial connection to the installed MCP module.
Spanning Tree Protocol 802.1d Support
The EtherSpeedII switch module software supports the Spanning Tree Protocol as specified in the IEEE 802.1d standard. The Spanning Tree Protocol is implemented to detect and eliminate logical loops in a bridged or switched network. When multiple paths exist, the spanning tree algorithm configures the network so that a bridge or switch uses only the most efficient path. If that path fails, the protocol automatically reconfigures the network to make another path become active, thus sustaining network operations.
Support for Virtual LANs
Using an EtherSpeedII switch module, you can group one or more physical ports to form a virtual LAN (VLAN) that constitutes a single broadcast domain.
VLANs are formed when broadcast domains are configured across multiple switches. Each Ethernet segment is an independent physical segment with its own collision domain, but all segments within a VLAN appear to the user as a broadcast domain.
Filtering
Filtering capabilities for the EtherSpeedII switch modules are implemented in system hardware and controlled by system software. Refer to the appropriate Centillion release notes for descriptions of the supported filtering capabilities, features, and availability.
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