
S
UMMIT
V
IRTUAL
C
HASSIS
D
ESIGN
AND
I
NSTALLATION
G
UIDE
13
S
UPPORTED
C
ONFIGURATIONS
In a parallel Virtual Chassis configuration using Summit1 or Summit4 switches, up to
four ports per Summit switch can be cabled to four different Summit Virtual Chassis.
Each switch must be cabled to the same port number on each Summit Virtual Chassis.
In a smaller detailed example shown in Figure 10, Switch A is cabled to four Summit
Virtual Chassis, labeled Chassis 1, Chassis 2, Chassis 3, and Chassis 4. Switch B is also
cabled to the four Summit Virtual Chassis.
Figure 10:
Detailed example using four Virtual Chassis units
Switch A uses port 2 on each Summit Virtual Chassis; Switch B uses port 6. The port
connections between the Summit1 switches and the four Summit Virtual Chassis are as
follows:
• Port 4 on Switch A is cabled to port 2 on Chassis 1.
• Port 5 on Switch A is cabled to port 2 on Chassis 2.
• Port 6 on Switch A is cabled to port 2 on Chassis 3.
• Port 7 on Switch A is cabled to port 2 on Chassis 4.
• Port 4 on Switch B is cabled to port 6 on Chassis 1.
• Port 5 on Switch B is cabled to port 6 on Chassis 2.
• Port 6 on Switch B is cabled to port 6 on Chassis 3.
• Port 7 on Switch B is cabled to port 6 on Chassis 4.
Summit switch connection must be cabled to the same port numbers on all
Summit Virtual Chassis. If not, communication among the switches will not
operate properly.
Chassis 1 Chassis 2 Chassis 3 Chassis 4
4-port
load-sharing
groups
Switch B
2341 6785 2341 6785 2341 6785 2341 6785
234
1
567
8
Switch A
234
1
567
8
virtchas.book Page 13 Friday, May 29, 1998 10:08 AM
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