Cisco Catalyst 3850 Deployment Manual page 30

To modify the default switch priority, use these EXEC commands:
Switch# switch <number> priority 15
!Set priority 15 to elect switch in ACTIVE role
Switch# switch <number> priority 14
!Set priority 14 to elect switch in STANDBY role
Switch# switch <number> priority 13
!Set priority 13 to elect switch in next STANDBY role
Switch# switch <number> priority 12
!Set priority 13 to elect switch in next STANDBY role
To configure the switch number, use this command:
Switch# switch <number> renumber <number>
!Statically renumber switch in stack ring
This example shows the priority of each switch and its role:
Switch# show switch
Switch/Stack Mac Address : f84f.576f.e100 - Local Mac Address
Mac persistency wait time: Indefinite
Switch#
--------------------------------------------------------------------
1
2
3
*4
The Cisco Catalyst 3850 Switches support a wide range of Layer 2, Layer 3, and wireless stateful capabilities to
provide nonstop network communication. In real time, the Cisco IOS XE Software running on the active switch
synchronizes its protocol state machines, software forwarding tables, and system configuration to the Cisco IOS
XE Software instance running on the standby switch. The other primary core services hosted by Cisco IOS XE
Software are the integrated applications, such as the wireless control module (WCM). In Cisco StackWise-480
mode, the WCM is operational on the active Cisco Catalyst 3850 Switch that communicates with the locally
attached Cisco wireless access points (WAPs), wireless clients, and distributed mobility peers to build a roaming
network domain. The WCM on the standby switch is in hot-standby state as a Cisco IOS XE Software process.
In real time, the active WCM performs the stateful synchronization of wireless protocols and control and
provisioning of wireless access points (CAPWAP) tunnel information with the standby switch. If the active switch
fails, the standby switch becomes the wireless controller by resynchronizing with the Cisco WAPs and mobility
peers.
© 2015 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
Role Mac Address
Member c472.954f.5380
Standby 44ad.d96d.b480
Member 00e1.6d52.c600
Active f84f.576f.e100
H/W Current
Priority Version
12 V01
14 V01
13 V03
15 V01
State
Ready
Ready
Ready
Ready
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