Quick Reference Guide

20 | SFTOS Features
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— Flow Control at the MAC layer: you may configure the switch or a port to temporarily
halt traffic when necessary to prevent overload (formerly IEEE 802.3x)
• Additional functions you can use to manage the network including IGMP Snooping (see
Chapter 15, IGMP Snooping), Port Mirroring (see Chapter 16, Port Mirroring), and Broadcast
Storm Recovery.
• Layer 3 Routing (see
Chapter 17, Layer 3 Routing)
• Base routing protocols, including support for the Address Resolution Protocol (ARP), IP Mapping,
the
Internet Control Message Protocol (ICMP) and Classless Inter-Domain Routing
(CIDR)
• Support for protocols used by routers to exchange network topology information:
— Routing Information Protocol (RIP) versions 1 and 2, recommended for use in small
to medium sized networks
— Open Shortest Path First (OSPF) version 2, used in larger, more complex networks
• Support for the Virtual Router Redundancy Protocol (VRRP) used to improve the reliability of
network connections
• Support for the MD5 Message-Digest Algorithm defined in RFC 1321 used for digital signature
applications
• Support for the use of Dynamic Host Configuration Protocol (DHCP) to assign IP addresses,
including the Relay Agent Information option defined in RFC 3046
• VLAN Routing (see
VLAN Routing on page 262): Allows traffic received on a VLAN port to be
processed by the Layer 3 routing function.
Layer 2 Package Feature Details
The core Layer 2 Package software provides support for the following features:
Basic Routing and Switching Support
• BootP (RFC 951, RFC 1542)
• BootP/DHCP Relay and Server (RFC 2131)
• Host Requirements (RFC 1122)
• UDP (RFC 768)
• IP (RFC 791)
• ICMP (RFC 792)
• TCP (RFC 793)
• STP (Spanning Tree Protocol) (IEEE 802.1d)
• Rapid Spanning Tree (IEEE 802.1w)
• MSTP (IEEE 802.1s)
• 10 GigE (IEEE 802.3ae)
• 1000 Base-T (IEEE 802.3ab)
• Flow Control (IEEE 802.3x)
• IEEE 802.3ad