Extreme Networks Summit1 - Manual (Page 82)

4-10 S UMMIT S WITCH I NSTALLATION AND U SER G UIDE
C ONFIGURING P ORTS
S
UMMIT
V
IRTUAL
C
HASSIS
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 Chassis, refer to the Summit
Virtual Chassis Design and Installation Guide
.
S UMMIT S WITCH P ORT C ONNECTIONS
Table 4-8 describes the Summit switch ports that can be used to connect to one, two, or
four Summit Virtual Chassis units.
Table 4-8: Summit Ports to Use to Connect to the Summit Virtual 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