Cisco Catalyst 4500 Series Software Configuration Manual page 303

Chapter 5 Configuring Virtual Switching Systems
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Switch# issu changeversion
bootflash:cat4500e-universal.SSA.03.03.00.SGN1.34.151-2.SGN1.34.bin
%% 'issu changeversion' is now executing 'issu loadversion'
% issu loadversion executed successfully, Standby is being reloaded
%% changeversion finished executing loadversion, waiting for standby to reload and reach
SSO ...
Switch 2 goes down, reboots with the post-upgrade image, then reaches SSO Hot Standby state.
...
*Aug 14 15:45:45.931: %RF-5-RF_TERMINAL_STATE: Terminal state reached for (SSO)
*Aug 14 15:48:45.958: %INSTALLER-7-ISSU_OP_SUCC:
'issu runversion'Please stand by while rebooting the system...
A Stateful Switchover occurs. Switch 2 takes over as the Active switch. Switch 1 goes down, then
reboots (still with the pre-upgrade image) and reaches SSO Hot Standby state.
(From this point on, the console logs are gathered on Switch 2)
*Aug 14 15:54:49.164: %INSTALLER-7-ISSU_OP_SUCC:
'issu commitversion'
Switch 1 goes down again, then boots up (this time with the post-upgrade image), and comes up as SSO
Hot Standby
Switch# show switch virtual
Switch mode
Virtual switch domain number : 16
Local switch number
Local switch operational role: Virtual Switch Active
Peer switch number
Peer switch operational role : Virtual Switch Standby
Switch# show switch virtual slot-map
Virtual Slot to Remote Switch/Physical Slot Mapping Table:
Virtual
Slot No
---------+-----------+----------+----------
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Switch#show issu state detail
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
: Virtual Switch
: 2
: 1
Remote Physical
Switch No Slot No
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
2 10
In-Service Software Upgrade (ISSU) on a VSS
issu changeversion is now executing
issu changeversion is now executing
Module
Uptime
00:01:21
00:19:12
00:19:12
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00:18:43
00:18:17
00:18:16
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