Power-On Sequence For Switch Data Stacks - Cisco Catalyst 3650 Series Hardware Installation Manual
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- Command reference manual (1108 pages) ,
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Chapter 2
Switch Installation
Figure 2-4
connections. This stack provides only half bandwidth and does not have redundant connections.
Figure 2-4
Figure 2-5
Figure
does not have redundant connections. In
two stacks, and the top and bottom switches become the active switches in the stack. If the bottom switch
is a member (not the active or standby switch), it reloads.
Figure 2-5
Figure 2-6
Power-On Sequence for Switch Data Stacks
Consider these guidelines before you power on the switches in a stack:
•
•
OL-29734-01
shows an example of a stack of Catalyst 3650 switches with incomplete StackWise cabling
Example of a Data Stack with Half Bandwidth Connections
1
2
and
Figure 2-6
show data stacks of Catalyst 3650 switches with failover conditions. In
2-5, the StackWise cable is bad in link 2. Therefore, this stack provides only half bandwidth and
Example of a Data Stack with a Failover Condition
1
3
Example of a Partitioned Data Stack with a Failover Condition
1
2
The sequence in which the switches are first powered on might affect the choice of switch that
becomes the active switch and the standby switch.
There are two ways to elect an active switch:
If you want a particular switch to become the active switch, configure it with the highest
–
priority. Among switches with same priority, the switch with the lowest MAC address becomes
the active switch.
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Figure
2-6, link 2 is bad. Therefore, this stack partitions into
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Catalyst 3650 Switch Hardware Installation Guide
Planning a Switch Data Stack
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2-7
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