先升级备机，在升级主

不能

ISSU升级，但是比较麻烦

1.9 通过issu命令升级典型配置举例

1.9.1 软件包兼容升级配置举例

1.9.2 软件包不兼容升级配置举例

1.9.3 软件包升级过程中回滚到升级前的版本配置举例

您好，请知：

S6520X-54XG-EI-G两台堆叠的交换机可以不中断业务升级，使用ISSU的方式即可。

以下是参考案例：

1.9  通过issu命令升级典型配置举例

1.9.1  软件包兼容升级配置举例

1. 配置需求

·     IRF由两个成员设备组成：主设备的成员编号为1，从设备的成员编号为2。

·     将Boot、System和Feature系统软件包从T0001015版本升级到兼容版本T0001016。

2. 组网图

图1-3 系统软件包升级组网图

3. 配置步骤

(1)     升级准备。

# 从TFTP server下载新版本Boot、System和Feature软件包。

<Sysname> tftp 2.2.2.2 get boot-t0001016.bin

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current

                                 Dload  Upload   Total   Spent    Left  Speed

100   6078464  100  6078464     0     0    764      0 --:--:-- --:--:-- --:--:--   810

Writing file...Done.

<Sysname> tftp 2.2.2.2 get system-t0001016.bin

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current

                                 Dload  Upload   Total   Spent    Left  Speed

100   97750016  100  97750016     0     0    764      0 --:--:-- --:--:-- --:--:--   810

Writing file...Done.

<Sysname> tftp 2.2.2.2 get feature-t0001016.bin

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current

                                 Dload  Upload   Total   Spent    Left  Speed

100   1008640  100  1008640     0     0    764      0 --:--:-- --:--:-- --:--:--   810

Writing file...Done.

# 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重启升级。

# 保存配置。

<Sysname> save

(2)     软件包升级。

# 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.

(3)     确定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。