Extreme Networks Virtual Chassis Installation Manual page 17

Table 2: Summit Switch Support for Virtual Chassis Stacks
Summit1
Summit2
Summit3
Summit4
Summit48
*Can result in a lack of connectivity if a single failure occurs in the stack. Refer to the section, "Configurations
to Avoid," for more information.
You must configure the Summit ports that will be used to connect to the Summit
Virtual Chassis. For information on configuring Summit ports, refer to the Summit
Switch Installation and User Guide .
C
ONFIGURATIONS TO
Some Virtual Chassis configurations may appear to work, but are not supported
because their redundancy capabilities are quite limited. The following section has an
example of this situation.
A
DDING A
The Summit3 switch has one active Gigabit Ethernet port. Therefore, it can have one
active connection to a Summit Virtual Chassis. Figure 12 shows how you would add a
Summit3 to the example used in the parallel Virtual Chassis example using Summit2
switches, shown previously in Figure 8.
S V C D
UMMIT IRTUAL HASSIS ESIGN AND
Single Virtual
Chassis Stack
Any of ports 1 - 8
Port 17 or Port 18
Port 25
Any of ports 17 - 22
Port 49 or Port 50
A
VOID
S 3 S
UMMIT WITCH TO A
I G
NSTALLATION UIDE
Parallel Virtual
Chassis Stack (2)
Ports 2 and 3, or
Ports 4 and 5, or
Ports 6 and 7
Ports 17 and 18
Not supported*
Ports 17 and 18, or
Ports 19 and 20, or
Ports 21 and 22
Ports 49 and 50
P V C
ARALLEL IRTUAL HASSIS
S C
UPPORTED ONFIGURATIONS
Parallel Virtual Chassis
Stack (4)
Ports 4, 5, 6, and 7
Not supported*
Not supported*
Ports 19, 20, 21, and 22
Not supported*
S
TACK
15