Extreme Networks Summit1 manual Full-Duplex, Port Redundancy, Backup Active

SUMMARY OF FEATURES

FULL-DUPLEX

The Summit switch provides full-duplex support for all ports. Full-duplex allows frames to be transmitted and received simultaneously and, in effect, doubles the bandwidth available on a link. All 10/100 Mbps ports on the Summit autonegotiate for half- or full-duplex operation.

PORT REDUNDANCY

The Summit2, Summit3, and Summit48 have an optional redundant Gigabit Ethernet port. Using the redundant port, you can dual-home these models to one or two switches. Figure 1-1illustrates a Summit2 dual-homed to two different switches.

Dual-homed

Backup Active

Figure 1-1:Dual-homing configuration

In the event that the active port fails or loses link status, the redundant port is automatically activated. When the primary port resumes operation, the redundant port becomes inactive. This feature can be disabled.

The redundant port cannot be used for load sharing when the primary port is active. If the primary port becomes inactive, the redundant port is activated in the load sharing configuration.

SUMMIT SWITCH INSTALLATION AND USER GUIDE 1-5