Extreme Networks Summit X150 Series, Hardware Installation Manual

Page: 213 / 512

Connecting the Switches to Form the Stack Ring
Summit Family Switches Hardware Installation Guide
213
Using SummitStack-V320 Stacking
A stacking rate of 320 Gbps can be achieved across a stack of Summit X480 (with VIM3-40G4X), X650
(with VIM3-40G4X), and X670V (with VIM4-40G4X) switches using the QSFP+ connection and cables.
These Summit switches can use 80-Gbps stacking connections that provide 320 Gbps full duplex
bandwidth.
Figure 152 shows an example of a SummitStack-V320 stack using Summit X670V and X650 series
switches.
Figure 152: Example SummitStack-V320 Configuration
For SummitStack V-320 Stacking using the VIM3-40G4X and VIM4-40G4X modules, and using the front
panel QSFP+ ports on the Summit X750-32q, connections among the stacking ports must be done using
paired bundles of physical ports. V320 stacking will not function unless the physical ports on the
modules are paired to form stacking ports.
Table 72 lists the port pairings using installable modules
Table 73 lists the port pairings using the front panel ports on the Summit X750.
Table 74 lists the recommended order for connecting the stacking ports in the example stack shown in
Figure 152 .
Table 72: Physical port pairing to form stacking ports with modules
VIM3-40G4X VIM4-40G4X
Paired
physical ports
Stacking port Paired
physical ports
Stacking port
S1 and S3 S1 S1 and S3 S1
S2 and S4 S2 S2 and S4 S2
Table 73: Physical port pairing to form stacking ports using front panel ports
Summit X750-32q
Paired
physical ports
Stacking port
101 and 103 S1
102 and 104 S2
1 2 3 4
1 2 3
1 3
4
2 4
SH_253a
Paired Ports
Paired Ports
Paired Ports
Slot 1: Summit X670V-48x switch
with VIM4-40G4X
Slot 3: Summit X650 series switch with
VIM3-40G4X
Slot 2: Summit X670V-48t switch with
VIM4-40G4X