4-10 SUMMIT SWITCH INSTALLATION AND USER GUIDE
CONFIGURING PORTS
SUMMIT VIRTUAL CHASSIS
The Summit Virtual Chassis is an ultra-high performance, low-cost external backplane
that connects up to eight stacked or distributed Summit switches into one cohesive
system.
Features of the Summit Virtual Chassis include the following:
•Increased port density
•Policy-based Quality of Service (QoS)
•Load-sharing links
•Extensive fault-tolerant capabilities
—Redundant power supplies
—Hot-swappable switches
•How-swappable virtual chassis
—Environmental sensors
The Summit Virtual Chassis has eight SummitLink ports. A SummitLink port is a
proprietary backplane channel used to connect Summit switches to the Summit Virtual
Chassis.
For detailed information about the Summit Virtual C hassis, refer to the
Summit
Virtual Chassis Design and Installation G uide
.

SUMMIT SWITCH PORT CONNECTIONS

Tab le 4- 8 describes the Summit switch ports that can be used to connect to one, two, or
four Summit Virtual Chassis units.
Tabl e 4-8: Su mmit Ports to Use to Connect t o the Summit Vir tual Chassis
One Virtual Chassis Two Virtual Chassis Four Virtual Chassis
Summit1 Any of ports 1 - 8 Ports 2 and 3, or
Ports 4 and 5, or
Ports 6 and 7
Ports 4, 5, 6, and 7
Summit2 Port 17 or Port 18 Ports 17 and 18
Summit3 Port 25

Summit.bk : 4PORTS.FM Page 10 Thursday, June 18, 1998 9:27 AM