有没有大佬指导一下交换机路由器的拆堆叠升级详细步骤？

2.保存配置（irf分裂不要保存）

3.指定主框的升级版本

4.拔掉堆叠线，断电重启主框

5.待主框完全启动后，查看主框状态，所有板卡均在线后，shutdown备框业务口，打开主框端口（undo shutdown）

 此时业务会中断，让客户测试业务，业务正常则继续；不正常，立即将业务切换回备框

6.指定备框版本升级

7.将备框断电后，插上堆叠线，在将备框上电启动

8.查看设备状态，测试业务，保存配置

业务中断过程大概有1-2分钟，具体取决于关闭、开启端口的速度

如果可能申请窗口期，直接升吧

拆了升还得再堆起来

建议用ISSU方式升级

6.3 通过ISSU命令进行兼容升级（框式设备）

6.3.1 升级流程

6.4 通过ISSU命令进行兼容升级（盒式设备）

6.4.1 升级流程

6.5 通过ISSU命令进行不兼容升级（框式设备）

6.5.1 升级流程

6.6 通过ISSU命令进行不兼容升级（盒式设备）

6.6.1 升级流程

您好，请知：

建议申请窗口期操作。

以下是参考案例：

6.3.2  升级过程

1. 升级前准备

请按“软件升级前准备”章节内容完成升级前的准备。

2. 下载软件包

从PC上下载升级所需的软件到设备。下载软件的详细介绍请参见“附录A 下载升级软件”章节。

3. 判断ISSU升级策略

# 查看升级前激活的软件包。

<Sysname> display install active

Active packages on chassis 1 slot 0:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Active packages on chassis 1 slot 1:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Active packages on chassis 2 slot 0:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Active packages on chassis 2 slot 1:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

# 显示设备将采用的ISSU升级策略。

<Sysname> display version comp-matrix file boot flash:/boot-t0001016.bin system flash:/system-t0001016.bin feature flash:/feature-t0001016.bin

Verifying the file flash:/boot-t0001016.bin on chassis 1 slot 0..................................Done.

Verifying the file flash:/system-t0001016.bin on chassis 1 slot 0..................................Done.

Verifying the file flash:/feature-t0001016.bin on chassis 1 slot 0..................................Done.

Identifying the upgrade methods....Done.

  Chassis   Slot              Upgrade Way

  1         0                 Reboot

  1         1                 Reboot

  2         0                 Reboot

  2         1                 Reboot

以上显示信息表明，新版本软件包的升级方式是兼容升级，并需要设备重启。

4. 升级启动软件

# 升级从设备的软件包。

<Sysname> issu load file boot flash:/boot-t0001016.bin system flash:/system-t0001016.bin feature flash:/feature-t0001016.bin chassis 2

This operation will delete the rollback point information for the previous upgrade and maybe get unsaved configuration lost. Continue? [Y/N]:y

Copying file flash:/boot-t0001016.bin to chassis2#slot0#flash:/boot-t0001016.bin......Done.

Copying file flash:/system-t0001016.bin to chassis2#slot0#flash:/system-t0001016.bin........................Done.

Copying file flash:/feature-t0001016.bin to chassis2#slot0#flash:/feature-t0001016.bin......Done.

Verifying the file flash:/boot-t0001016.bin on chassis 2 slot 0...Done.

Verifying the file flash:/system-t0001016.bin on chassis 2 slot 0............Done.

Verifying the file flash:/feature-t0001016.bin on chassis 2 slot 0...Done.

Copying file flash:/boot-t0001016.bin to chassis2#slot1#flash:/boot-t0001016.bin......Done.

Copying file flash:/system-t0001016.bin to chassis2#slot1#flash:/system-t0001016.bin........................Done.

Copying file flash:/feature-t0001016.bin to chassis2#slot1#flash:/feature-t0001016.bin......Done.

Verifying the file flash:/boot-t0001016.bin on chassis 2 slot 1...Done.

Verifying the file flash:/system-t0001016.bin on chassis 2 slot 1............Done.

Verifying the file flash:/feature-t0001016.bin on chassis 2 slot 1...Done.

Identifying the upgrade methods….Done.

Upgrade summary according to following table:

flash:/boot-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/system-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/feature-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

  Chassis   Slot              Upgrade Way

  2         0                 Reboot

  2         1                 Reboot

Upgrading software images to compatible versions. Continue? [Y/N]:y

This operation might take several minutes, please wait...Done.

# 确定系统处于稳定状态。

<Sysname> display issu state

ISSU state: Loaded

Compatibility: Compatible

Work state: Normal

Upgrade method: Chassis by chassis

Upgraded chassis:

  chassis 2

Current upgrading chassis: None

Previous version list:

  boot: 7.1.070, Test 0001015

  system: 7.1.070, Test 0001015

  feature: 7.1.070, Test 0001015

Previous software images:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Upgrade version list:

  boot: 7.1.070, Test 0001016

  system: 7.1.070, Test 0001016

  feature: 7.1.070, Test 0001016

Upgrade software images:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

从显示信息中可以看出，目前系统处于ISSU过程中的Loaded状态，该状态是一个稳定状态，等待进行下一步主备倒换操作；当前只有chassis2完成了从T0001015到T0001016版本的升级，chassis1还未升级。

# 进行ISSU主备倒换。

<Sysname> issu run switchover

Upgrade summary according to following table:

flash:/boot-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/system-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/feature-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

  Chassis   Slot              Switchover Way

  1         0                 Master subordinate switchover

Upgrading software images to compatible versions. Continue? [Y/N]:y

This operation might take several minutes, please wait.........

# 确定系统处于稳定状态。

<Sysname> display issu state

ISSU state: Switchover

Compatibility: Compatible

Work state: Normal

Upgrade method: Chassis by chassis

Upgraded chassis:

  chassis 2

Current upgrading chassis: None

Previous version list:

  boot: 7.1.070, Test 0001015

  system: 7.1.070, Test 0001015

  feature: 7.1.070, Test 0001015

Previous software images:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Upgrade version list:

  boot: 7.1.070, Test 0001016

  system: 7.1.070, Test 0001016

  feature: 7.1.070, Test 0001016

Upgrade software images:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

从显示信息中可以看出，目前系统处于ISSU过程中的Switchover状态，该状态也是一个稳定状态，表示已经完成了ISSU主备倒换的操作，等待进行下一步Commit操作；当前只有chassis2完成了从T0001015到T0001016版本的升级，chassis1还未升级。

# 确认并升级主设备的软件包。

<Sysname> issu commit chassis 1

Copying file flash:/boot-t0001016.bin to chassis1#slot1#flash:/boot-t0001016.bin......Done.

Copying file flash:/system-t0001016.bin to chassis1#slot1#flash:/system-t0001016.bin........................Done.

Copying file flash:/feature-t0001016.bin to chassis1#slot1#flash:/feature-t0001016.bin......Done.

Verifying the file flash:/boot-t0001016.bin on chassis 1 slot 1...Done.

Verifying the file flash:/system-t0001016.bin on chassis 1 slot 1...Done.

Verifying the file flash:/feature-t0001016.bin on chassis 1 slot 1...Done.

Upgrade summary according to following table:

flash:/boot-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/system-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/feature-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

  Chassis   Slot              Upgrade Way

  1         0                 Reboot

  1         1                 Reboot

Upgrading software images to compatible versions. Continue? [Y/N]:y

This operation might take several minutes, please wait...Done.

5. 确认ISSU升级完成。

# 查看ISSU状态。

<Sysname> display issu state

ISSU state: Init

Compatibility: Unknown

Upgrade method: Chassis by chassis

Upgraded chassis: None

Current upgrading chassis: None

Current version list:

  boot: 7.1.070, Test 0001016

  system: 7.1.070, Test 0001016

  feature: 7.1.070, Test 0001016

Current software images:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

# 查看已激活的软件包

<Sysname> display install active

Active packages on chassis 1 slot 0:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

Active packages on chassis 1 slot 1:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

Active packages on chassis 2 slot 0:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

Active packages on chassis 2 slot 1:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

6.4  通过ISSU命令进行兼容升级（盒式设备）

6.4.1  升级流程

图6-4 通过ISSU命令兼容升级流程图

6.4.2  升级过程

1. 升级前准备

请按“软件升级前准备”章节内容完成升级前的准备。

2. 下载软件包

从PC上下载升级所需的软件到设备。下载软件的详细介绍请参见“附录A 下载升级软件”章节。

3. 判断ISSU升级策略

# 查看升级前激活的软件包。

<Sysname> display install active

Active packages on slot 1:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Active packages on slot 2:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

# 显示设备将采用的ISSU升级策略。

<Sysname> display version comp-matrix file boot flash:/boot-t0001016.bin system flash:/system-t0001016.bin feature flash:/feature-t0001016.bin

Verifying the file flash:/boot-t0001016.bin on slot 1.......................Done.

Verifying the file flash:/system-t0001016.bin on slot 1................. .................Done.

Verifying the file flash:/feature-t0001016.bin on slot 1.................Done.

Identifying the upgrade methods....Done.

  Slot                        Upgrade Way

  1                           Reboot

  2                           Reboot

以上显示信息表明，新版本软件包的升级方式是兼容升级，并需要设备重启。

4. 升级启动软件

# 升级从设备的软件包。

<Sysname> issu load file boot flash:/boot-t0001016.bin system flash:/system-t0001016.bin feature flash:/feature-t0001016.bin slot 2

This operation will delete the rollback point information for the previous upgrade and maybe get unsaved configuration lost. Continue? [Y/N]:y

Copying file flash:/boot-t0001016.bin to slot2#flash:/boot-t0001016.bin......Done.

Copying file flash:/system-t0001016.bin to slot2#flash:/system-t0001016.bin........................Done.

Copying file flash:/feature-t0001016.bin to slot2#flash:/feature-t0001016.bin......Done.

Verifying the file flash:/boot-t0001016.bin on slot 2...Done.

Verifying the file flash:/system-t0001016.bin on slot 2............Done.

Verifying the file flash:/feature-t0001016.bin on slot 2...Done.

Identifying the upgrade methods….Done.

Upgrade summary according to following table:

flash:/boot-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/system-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/feature-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

  Slot                        Upgrade Way

  2                           Reboot

Upgrading software images to compatible versions. Continue? [Y/N]:y

This operation might take several minutes, please wait...Done.

# 确定系统处于稳定状态。

<Sysname> display issu state

ISSU state: Loaded

Compatibility: Compatible

Work state: Normal

Upgrade method: Card by card

Upgraded slot:

  slot 2

Current upgrading slot: None

Previous version list:

  boot: 7.1.070, Test 0001015

  system: 7.1.070, Test 0001015

  feature: 7.1.070, Test 0001015

Previous software images:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Upgrade version list:

  boot: 7.1.070, Test 0001016

  system: 7.1.070, Test 0001016

  feature: 7.1.070, Test 0001016

Upgrade software images:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

从显示信息中可以看出，目前系统处于ISSU分步式升级过程中的Loaded状态，该状态是一个稳定状态，等待进行下一步主备倒换操作；当前只有slot2完成了从T0001015到T0001016版本的升级，slot1还未升级。

# 进行ISSU主备倒换。

<Sysname> issu run switchover

Upgrade summary according to following table:

flash:/boot-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/system-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/feature-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

  Slot                        Switchover Way

  1                           Master subordinate switchover

Upgrading software images to compatible versions. Continue? [Y/N]:y

This operation might take several minutes, please wait.........

# 确定系统处于稳定状态。

<Sysname> display issu state

ISSU state: Switchover

Compatibility: Compatible

Work state: Normal

Upgrade method: Card by card

Upgraded slot:

  slot 2

Current upgrading slot: None

Previous version list:

  boot: 7.1.070, Test 0001015

  system: 7.1.070, Test 0001015

  feature: 7.1.070, Test 0001015

Previous software images:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Upgrade version list:

  boot: 7.1.070, Test 0001016

  system: 7.1.070, Test 0001016

  feature: 7.1.070, Test 0001016

Upgrade software images:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

从显示信息中可以看出，目前系统处于ISSU分步式升级过程中的Switchover状态，该状态也是一个稳定状态，表示已经完成了ISSU主备倒换的操作，等待进行下一步Commit操作；当前只有slot2完成了从T0001015到T0001016版本的升级，slot1还未升级。

# 升级主设备。

<Sysname> issu commit slot 1

Upgrade summary according to following table:

flash:/boot-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/system-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

flash:/feature-t0001016.bin

  Running Version             New Version

  Test 0001015                Test 0001016

  Slot                        Upgrade Way

  1                           Reboot

Upgrading software images to compatible versions. Continue? [Y/N]:y

This operation might take several minutes, please wait...Done.

5. 确认ISSU升级完成。

# 查看ISSU状态。

<Sysname> display issu state

ISSU state: Init

Compatibility: Unknown

Work state: Normal

Upgrade method: Card by card

Upgraded slot: None

Current upgrading slot: None

Current version list:

  boot: 7.1.070, Test 0001016

  system: 7.1.070, Test 0001016

  feature: 7.1.070, Test 0001016

Current software images:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

# 查看升级后激活的软件包。

<Sysname> display install active

Active packages on slot 1:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

Active packages on slot 2:

  flash:/boot-t0001016.bin

  flash:/system-t0001016.bin

  flash:/feature-t0001016.bin

从显示信息中可以看出，目前系统处于ISSU分步式升级过程中的Init状态，表示ISSU升级完成，且所有激活的软件包版本均为T0001016，升级成功。

6.5  通过ISSU命令进行不兼容升级（框式设备）

6.5.1  升级流程

图6-5 通过ISSU命令不兼容升级流程图

6.5.2  升级过程

1. 升级前准备

请按“软件升级前准备”章节内容完成升级前的准备。

2. 下载软件包

从PC上下载升级所需的软件到设备。下载软件的详细介绍请参见“附录A 下载升级软件”章节。

3. 判断ISSU升级策略

# 查看升级前激活的软件包。

<Sysname> display install active

Active packages on chassis 1 slot 0:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Active packages on chassis 1 slot 1:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Active packages on chassis 2 slot 0:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Active packages on chassis 2 slot 1:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

# 显示设备将采用的ISSU升级策略。

<Sysname> display version comp-matrix file boot flash:/boot-t0001017.bin system flash:/system-t0001017.bin feature flash:/feature-t0001017.bin

Verifying the file flash:/boot-t0001017.bin on chassis 1 slot 0..................................Done.

Verifying the file flash:/system-t0001017.bin on chassis 1 slot 0..................................Done.

Verifying the file flash:/feature-t0001017.bin on chassis 1 slot 0..................................Done.

Identifying the upgrade methods....Done.

Incompatible upgrade.

以上显示信息表明，新版本软件包的升级方式是不兼容升级。

4. 升级启动软件

# 升级从设备的软件包，升级完成后从设备形成新的IRF。

<Sysname> issu load file boot flash:/boot-t0001017.bin system flash:/system-t0001017.bin feature flash:/feature-t0001017.bin chassis 2

This operation will delete the rollback point information for the previous upgrade and maybe get unsaved configuration lost. Continue? [Y/N]:y

Copying file flash:/boot-t0001017.bin to chassis2#slot0#flash:/boot-t0001017.bin......Done.

Copying file flash:/system-t0001017.bin to chassis2#slot0#flash:/system-t0001017.bin........................Done.

Copying file flash:/feature-t0001017.bin to chassis2#slot0#flash:/feature-t0001017.bin......Done.

Verifying the file flash:/boot-t0001017.bin on chassis 2 slot 0...Done.

Verifying the file flash:/system-t0001017.bin on chassis 2 slot 0............Done.

Verifying the file flash:/feature-t0001017.bin on chassis 2 slot 0...Done.

Copying file flash:/boot-t0001017.bin to chassis2#slot1#flash:/boot-t0001017.bin......Done.

Copying file flash:/system-t0001017.bin to chassis2#slot1#flash:/system-t0001017.bin........................Done.

Copying file flash:/feature-t0001017.bin to chassis2#slot1#flash:/feature-t0001017.bin......Done.

Verifying the file flash:/boot-t0001017.bin on chassis 2 slot 1...Done.

Verifying the file flash:/system-t0001017.bin on chassis 2 slot 1............Done.

Verifying the file flash:/feature-t0001017.bin on chassis 2 slot 1...Done.

Identifying the upgrade methods….Done.

Upgrade summary according to following table:

flash:/boot-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

flash:/system-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

flash:/feature-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

  Chassis   Slot              Upgrade Way

  2         0                 Reboot

  2         1                 Reboot

Upgrading software images to incompatible versions. Continue? [Y/N]:y

This operation might take several minutes, please wait...Done.

# 确定系统处于稳定状态。

<Sysname> display issu state

ISSU state: Loaded

Compatibility: Incompatible

Work state: Normal

Upgrade method: Chassis by chassis

Upgraded chassis:

  chassis 2

Current upgrading chassis: None

Previous version list:

  boot: 7.1.070, Test 0001015

  system: 7.1.070, Test 0001015

  feature: 7.1.070, Test 0001015

Previous software images:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Upgrade version list:

  boot: 7.1.070, Test 0001017

  system: 7.1.070, Test 0001017

  feature: 7.1.070, Test 0001017

Upgrade software images:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

从显示信息中可以看出，目前系统处于ISSU升级过程中的Loaded状态，该状态是一个稳定状态，等待进行下一步主备倒换操作；当前只有chassis2完成了从T0001015到T0001017版本的升级，chassis1还未升级。

# 升级原主设备的软件包，升级完成后原主设备重启后加入新的IRF。

<Sysname> issu run switchover

Copying file flash:/boot-t0001017.bin to chassis1#slot1#flash:/boot-t0001017.bin......Done.

Copying file flash:/system-t0001017.bin to chassis1#slot1#flash:/system-t0001017.bin........................Done.

Copying file flash:/feature-t0001017.bin to chassis1#slot1#flash:/feature-t0001017.bin......Done.

Verifying the file flash:/boot-t0001017.bin on chassis 1 slot 1...Done.

Verifying the file flash:/system-t0001017.bin on chassis 1 slot 1............Done.

Verifying the file flash:/feature-t0001017.bin on chassis 1 slot 1...Done.

Upgrade summary according to following table:

flash:/boot-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

flash:/system-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

flash:/feature-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

  Chassis   Slot              Upgrade Way

  1         0                 Reboot

  1         1                 Reboot

Upgrading software images to incompatible versions. Continue? [Y/N]:y

This operation might take several minutes, please wait.........

5. 确认ISSU升级完成。

# 查看ISSU状态。

<Sysname> display issu state

ISSU state: Init

Compatibility: Unknown

Work state: Normal

Upgrade method: Chassis by chassis

Upgraded chassis: None

Current upgrading chassis: None

Current version list:

  boot: 7.1.070, Test 0001017

  system: 7.1.070, Test 0001017

  feature: 7.1.070, Test 0001017

Current software images:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

# 查看升级后激活的软件包。

<Sysname> display install active

Active packages on chassis 1 slot 0:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

Active packages on chassis 1 slot 1:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

Active packages on chassis 2 slot 0:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

Active packages on chassis 2 slot 1:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

6.6  通过ISSU命令进行不兼容升级（盒式设备）

6.6.1  升级流程

图6-6 通过ISSU命令不兼容升级流程图

6.6.2  升级过程

1. 升级前准备

请按“软件升级前准备”章节内容完成升级前的准备。

2. 下载软件包

从PC上下载升级所需的软件到设备。下载软件的详细介绍请参见“附录A 下载升级软件”章节。

3. 判断ISSU升级策略

# 查看升级前激活的软件包。

<Sysname> display install active

Active packages on slot 1:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Active packages on slot 2:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

# 显示设备将采用的ISSU升级策略。

<Sysname> display version comp-matrix file boot flash:/boot-t0001017.bin system flash:/system-t0001017.bin feature flash:/feature-t0001017.bin

Verifying the file flash:/boot-t0001017.bin on slot 1.......................Done.

Verifying the file flash:/system-t0001017.bin on slot 1................. .................Done.

Verifying the file flash:/feature-t0001017.bin on slot 1.................Done.

Identifying the upgrade methods....Done.

Incompatible upgrade.

以上显示信息表明，新版本软件包的升级方式是不兼容升级。

4. 升级启动软件

# 升级从设备的软件包。

<Sysname> issu load file boot flash:/boot-t0001017.bin system flash:/system-t0001017.bin feature flash:/feature-t0001017.bin slot 2

This operation will delete the rollback point information for the previous upgrade and maybe get unsaved configuration lost. Continue? [Y/N]:y

Copying file flash:/boot-t0001017.bin to slot2#flash:/boot-t0001017.bin......Done.

Copying file flash:/system-t0001017.bin to slot2#flash:/system-t0001017.bin........................Done.

Copying file flash:/feature-t0001017.bin to slot2#flash:/feature-t0001017.bin......Done.

Verifying the file flash:/boot-t0001017.bin on slot 2...Done.

Verifying the file flash:/system-t0001017.bin on slot 2............Done.

Verifying the file flash:/feature-t0001017.bin on slot 2...Done.

Identifying the upgrade methods….Done.

Upgrade summary according to following table:

flash:/boot-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

flash:/system-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

flash:/feature-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

  Slot                        Upgrade Way

  2                           Reboot

Upgrading software images to incompatible versions. Continue? [Y/N]:y

This operation might take several minutes, please wait...Done.

# 确定系统处于稳定状态。

<Sysname> display issu state

ISSU state: Loaded

Compatibility: Incompatible

Work state: Normal

Upgrade method: Card by card

Upgraded slot:

  slot 2

Current upgrading slot: None

Previous version list:

  boot: 7.1.070, Test 0001015

  system: 7.1.070, Test 0001015

  feature: 7.1.070, Test 0001015

Previous software images:

  flash:/boot-t0001015.bin

  flash:/system-t0001015.bin

  flash:/feature-t0001015.bin

Upgrade version list:

  boot: 7.1.070, Test 0001017

  system: 7.1.070, Test 0001017

  feature: 7.1.070, Test 0001017

Upgrade software images:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

从显示信息中可以看出，目前系统处于ISSU升级过程中的Loaded状态，该状态是一个稳定状态，等待进行下一步主备倒换操作；当前只有slot2完成了从T0001015到T0001017版本的升级，slot1还未升级。

# 进行ISSU主备倒换。

<Sysname> issu run switchover

Upgrade summary according to following table:

flash:/boot-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

flash:/system-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

flash:/feature-t0001017.bin

  Running Version             New Version

  Test 0001015                Test 0001017

  Slot                        Switchover Way

  1                           Master subordinate switchover

5. 确认ISSU升级完成。

# 查看ISSU状态。

<Sysname> display issu state

ISSU state: Init

Compatibility: Unknown

Work state: Normal

Upgrade method: Card by card

Upgraded slot: None

Current upgrading slot: None

Current version list:

  boot: 7.1.070, Test 0001017

  system: 7.1.070, Test 0001017

  feature: 7.1.070, Test 0001017

Current software images:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

# 查看升级后激活的软件包。

<Sysname> display install active

Active packages on slot 1:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

Active packages on slot 2:

  flash:/boot-t0001017.bin

  flash:/system-t0001017.bin

  flash:/feature-t0001017.bin

从显示信息中可以看出，目前系统处于ISSU分步式升级过程中的Init状态，表示ISSU升级完成，且所有激活的软件包版本均为T0001017，升级成功。