S
UMMIT
V
IRTUAL
C
HASSIS
D
ESIGN
AND
I
NSTALLATION
G
UIDE
5
S
UMMIT
V
IRTUAL
C
HASSIS
F
RONT
V
IEW
H
OT
-S
WAPPING
S
UMMIT
S
WITCHES
AND
S
UMMIT
V
IRTUAL
C
HASSIS
U
NITS
You can easily add, remove, and replace Summit switches that are interconnected with
the Summit Virtual Chassis without affecting users linked to other switches in the stack.
No actions are required prior to disconnecting a Summit switch, removing it from the
stack, adding a new switch to the stack, or replacing a switch. Other switches connected
to Summit Virtual Chassis continue to operate normally. When a switch is replaced or
added, users connected to the new switch can automatically communicate with devices
attached to other switches in the stack.
When a stack of Summit switches are connected to two or more Summit Virtual Chassis,
you can hot-swap one of the Virtual Chassis without affecting communication between
devices attached to the stack. If a system LED on a Summit Virtual Chassis indicates a
failure, the Summit Virtual Chassis can be disconnected, removed from the stack and
replaced, while remaining transparent to all users. All traffic continues to pass through
the operational Summit Virtual Chassis while the failed unit is replaced.
E
NVIRONMENTAL
S
ENSORS
The Summit Virtual Chassis is equipped with sensors that monitor the internal
temperature and send an alert if the temperature exceeds 60 degrees centigrade.
Fans in the Summit Virtual Chassis are built with a tachometer sensor that detects a fan
failure if the rotation speed decreases by 20%. This allows you to make necessary
repairs to the Summit Virtual Chassis before a failure occurs.
S
UMMIT
V
IRTUAL
C
HASSIS
F
RONT
V
IEW
Figure 3 shows the front panel view of the Summit Virtual Chassis.
Figure 3: Summit Virtual Chassis front panel
Unit status LEDs
Port status
LEDs
SummitLink ports
SummitLink ports
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
AMBER
AMBER
GREEN
AMBER
TX
RX
LINK
ACTIVITY
TX ACTIVITY
RX ACTIVITY
LINK OK
LINK ERROR
virtchas.book Page 5 Friday, May 29, 1998 10:08 AM
