Foundry Networks OSI Manuale Utente
S
WITCH
F
EATURES
February 2003
© 2003 Foundry Networks, Inc.
C-3
Switch Features
Spanning Tree Protocol
Forwarding Mode
Store-and-forward
Store-and-forward
Flow Control
Full Duplex: IEEE 802.3x
Half Duplex: Back pressure
Full Duplex: IEEE 802.3x
Half Duplex: Back pressure
Broadcast Storm Suppression
Traffic throttled above a critical threshold
Traffic throttled above a critical threshold
VLAN Support
Up to 255 groups; port-based or with 802.1Q VLAN tagging,
GVRP for automatic VLAN learning
Up to 255 groups; port-based or with 802.1Q VLAN tagging,
GVRP for automatic VLAN learning
Multicast Switching
IGMP Snooping
IGMP Snooping
Quality of Service
Supports four levels of priority and Weighted Round Robin queueing
Supports four levels of priority and Weighted Round Robin queueing