Confidential and proprietary information of Extreme Networks. © 2011 Extreme Networks, Inc.
All rights reserved. DRAFT. October 20, 2011
Building a SummitStack Configuration
Summit Family Switches Hardware Installation Guide
164
Combining Different Types of Stacking Ports
Using special conversion cables, you can build a SummitStack configuration that combines 40-Gbps
stacking connections with 256-Gbps connections or with 128-Gbps connections. Figure 111 shows a
sample configuration using the following switches:
● Summit X650 series switches with installed VIM1-SummitStack256 modules
● Summit X450a series switch with integrated SummitStack ports
● Summit X480 series switch with installed VIM2-SummitStack module
Figure 111: Combining Stacking Port Types—A
The following cables are used to make the stacking connections:
● SummitStack 128G cable between the two Summit X650 series switches at the top (slot 1 and slot 2)
● SummitStack 128G/20G stacking cable between the Summit X650 series switch and the Summit X480
series switch (between slot 2 and slot 3)
● SummitStack 20G stacking cable between the Summit X480 series switch and the Summit X450a
series switch (between slot 3 and slot 4)
● SummitStack 128G/20G stacking cable between the Summit X450a series switch and the Summit
X650 series switch (between slot 4 and slot 1)
Table 56 lists the recommended order for connecting the stacking ports in this example.
Table 55: Recommended Stacking Port Connections (5-Switch Stack in Five Adjacent Racks)
Connect this slot and port . . . . . . To this slot and port
Slot1 Rack A Port 2 Slot 2 Rack B Port 1
Slot 2 Rack B Port 2 Slot 3 Rack D Port 1
Slot 3 Rack D Port 2 Slot 4 Reck E Port 1
Slot 4 Rack E Port 2 Slot 5 Rack C Port 1
Slot 5 Rack C Port 2 Slot 1 (Rack A Port 1
Slot 1
Slot 4
Slot 2
Slot 3
Summit X480 series switch
Summit X650 series switch
Summit X650 series switch
Summit X450a series switch
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