Product specifications

Features
1-4 Product Introduction
Bridging
The following bridging features and options are available:
• High-speed local traffic filtering and forwarding
• Full line-rate bridge forwarding – up to 750,000 packets-per-second per module
• Compliant with the spanning tree loop detection protocol, IEEE 802.1d
• Support for multiple spanning trees with the ability to turn off the spanning tree
algorithm on individual switch ports on a per-port basis
Ethernet
The following Ethernet features are available:
• Half- and full-duplex operation over the Fast Ethernet ports.
• Using 100BaseTX, 10/100 Mb/s autosensing over the Fast Ethernet ports
FDDI
The following FDDI features are available:
• Full-duplex FDDI.
• Translation between FDDI and 802.3 Ethernet frame format for direct transparent
connections, translation of AppleTalk 1 and 2 ARP packets, and handling of
Novell IPX raw 802.3 packets.
• Operable in either an FDDI tree or dual-ring configurations:
— FDDI port A/M can be switched to emulate an M port of a concentrator. This
action causes FDDI port B/S to automatically switch to emulate an S port.
— Allows attachment to concentrators by allowing both FDDI ports to be
directed to the MultiSwitch 900 backplane.
SNMP
The VNswitch 900FX has a built-in SNMP agent and can be managed by any generic
SNMP management application.
• The following MIBs are supported:
— MIB-II (RFC 1213)
— Interfaces Group of MIB-II (RFC 1573)
— Bridge MIB (RFC 1493)
— Draft of IETF 802.3 MAU MIB