在Catalyst 3850和Catalyst 9000系列交換機上執行ISSU

已更新: 2023 年 5 月 18 日
文件 ID:214406

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    簡介

    本檔案介紹在Catalyst 3850和Catalyst 9000系列交換器上執行服務中軟體升級(ISSU)所涉及的步驟。

    什麼是ISSU

    服務中軟體升級是在網路繼續轉送封包時將映像升級為裝置上另一個映像的程式。ISSU可幫助網路管理員在執行軟體升級時避免網路中斷。在安裝模式下升級映像，其中，分別升級每個軟體包。

    所有支援Stackwise-Virtual的Catalyst 3850和Catalyst 9000系列上均支援ISSU，並且帶有雙管理引擎的Catalyst 9400/9600獨立機箱上也支援ISSU。

    StackWise虛擬(SVL)包含兩個連線在一起的交換器，以形成一個虛擬交換器。SVL支援服務中軟體升級。

    ISSU支援升級、降級和回滾。

    支援的平台和版本支援清單

    在繼續ISSU之前，請檢查平台是否實際支援ISSU。此外，驗證當前代碼和目的碼之間是否支援ISSU。有關支援的平台和ISSU相容性表的模式詳細資訊，請訪問以下網站：

    不同版本之間的ISSU支援

    ISSU之前的先決條件

    註：本文檔中的示例基於配置為Stackwise-Virtual的Cisco Catalyst 9500交換機。這些步驟適用於具有雙管理引擎的Cat9400/Cat9600獨立機箱，也適用於配置為Stackwise-Virtual的Catalyst 3850/Catalyst 9000裝置。

    1.檢查當前代碼版本

    C9500#show version | in IOS XE 
Cisco IOS XE Software, Version 16.09.02

    2.檢查引導模式

    僅當Stackwise虛擬中的兩台交換機均在安裝模式下引導時，才支持ISSU。

    C9500#show ver | in INSTALL
    *    1 50    C9500-40X          16.9.2            CAT9K_IOSXE           INSTALL
         2 50    C9500-40X          16.9.2            CAT9K_IOSXE           INSTALL

On Catalyst 9400, the above output is not available. Check if the switch booted from packages.conf file

C9400#show version | in System image
System image file is "flash:packages.conf"
 

    如果機箱在套件組合模式下啟動，則不支援ISSU。如果嘗試在交換器以套件組合模式執行時執行ISSU，可以看到如下錯誤。

    *Nov 13 14:55:57.338: %INSTALL-5-INSTALL_START_INFO: Chassis 1 R1/0: install_engine: Started install one-shot ISSU flash:cat9k_iosxe.16.09.02.SPA.bininstall_add_activate_commit: Adding ISSU
ERROR: install_add_activate_commit: One-Shot ISSU operation is not supported in bundle boot mode
FAILED: install_add_activate_commit  exit(1) Tue Nov 13 14:56:03 UTC 2018

    3.檢查快閃記憶體上是否有足夠的可用記憶體

    C9500#dir flash: | in free
    11353194496 bytes total (8565174272 bytes free)

    C9500#dir stby-flash: | in free
    11353980928 bytes total (8566865920 bytes free)

    確保快閃記憶體中至少有1GB的空間用於擴展新映像。在空間不足的情況下清理舊安裝檔案，並使用install remove inactive命令。

    4.檢查交換機是否處於SSO模式

    C9500#show redundancy 
    Redundant System Information :
    ------------------------------
           Available system uptime = 4 minutes
    Switchovers system experienced = 0
                  Standby failures = 0
            Last switchover reason = none

                     Hardware Mode = Duplex
        Configured Redundancy Mode = sso
         Operating Redundancy Mode = sso
                  Maintenance Mode = Disabled
                    Communications = Up

    Current Processor Information :
    -------------------------------
                   Active Location = slot 1
            Current Software state = ACTIVE
           Uptime in current state = 30 minutes
                     Image Version = Cisco IOS Software [Fuji], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 16.9.2, RELEASE SOFTWARE (fc4)
    Technical Support: http://www.cisco.com/techsupport
    Copyright (c) 1986-2018 by Cisco Systems, Inc.
    Compiled Mon 05-Nov-18 19:32 by mcpre
                              BOOT = flash:packages.conf;
                       CONFIG_FILE = 
            Configuration register = 0x102

    Peer Processor Information :
    ----------------------------
                  Standby Location = slot 2
            Current Software state = STANDBY HOT 
           Uptime in current state = 26 minutes
                     Image Version = Cisco IOS Software [Fuji], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 16.9.2, RELEASE SOFTWARE (fc4)
    Technical Support: http://www.cisco.com/techsupport
    Copyright (c) 1986-2018 by Cisco Systems, Inc.
    Compiled Mon 05-Nov-18 19:32 by mcpre
                              BOOT = flash:packages.conf;
                       CONFIG_FILE = 
            Configuration register = 0x102
           

    5.檢查是否已啟用自動開機

    C9500#show boot system 
    ---------------------------
    Switch 1
    ---------------------------
    Current Boot Variables:
    BOOT variable = flash:packages.conf;

    Boot Variables on next reload:
    BOOT variable = flash:packages.conf;
    Manual Boot = no                       <<<<< Manual Boot should be set to "no"       
    Enable Break = no
    Boot Mode = DEVICE
    iPXE Timeout = 0
    ---------------------------
    Switch 2
    ---------------------------
    Current Boot Variables:
    BOOT variable = flash:packages.conf;

    Boot Variables on next reload:
    BOOT variable = flash:packages.conf;
    Manual Boot = no
    Enable Break = no
    Boot Mode = DEVICE
    iPXE Timeout = 0

    如果沒有啟用自動開機，可以更改此設定，如下所示：

    C9500(config)#no boot manual

    6.檢查當前ISSU和安裝狀態

    note-icon

    註：此步驟非常重要！

    C9500#show issu state detail
    --- Starting local lock acquisition on switch 1 ---
    Finished local lock acquisition on switch 1

    No ISSU operation is in progress      <<<<<<<<< If see anything else, abort ISSU before proceeding.
    Check on how to manually abort ISSU.



 
C9500#show install summary
    [ Switch 1 2 ] Installed Package(s) Information:
    State (St): I - Inactive, U - Activated & Uncommitted,
                C - Activated & Committed, D - Deactivated & Uncommitted
    --------------------------------------------------------------------------------
    Type  St   Filename/Version    
    --------------------------------------------------------------------------------
    IMG   C    16.9.2.0.2433      <<<<<<<< State should be Activated & Committed for current version alone.
     If not clear install state before proceeding. Check on how to clear install state.                                                  

--------------------------------------------------------------------------------
Auto abort timer: inactive
--------------------------------------------------------------------------------

    7.複製要升級/降級的新映像

    僅將映像複製到活動機箱（適用於Stackwise）或活動管理引擎（適用於Cat9400雙SUP）就足夠了。

    C9500#copy tftp: bootflash:
Address or name of remote host []? X.X.X.X
Source filename []? cat9k_iosxe.16.09.02.SPA.bin
Destination filename [cat9k_iosxe.16.09.02.SPA.bin]?

    ISSU工作流程 — 實際升級

    驗證所有前提條件後，您可以繼續進行實際升級，並使用下列方法之一：

    • 一步工作流（僅一個步驟，不支援回滾）
    • 三步工作流（包括3個步驟，支援故障時的回滾）

    一步式工作流

    此工作流程僅涉及一個步驟，有助於最佳化。

    note-icon

    注意：您無法回滾，因為升級已自動提交。如果要回滾，請繼續執行三步工作流程。

    // This example has SW-2 as Active and Sw-1 as Standby before starting ISSU


    C9500#install add file flash:cat9k_iosxe.16.09.02.SPA.bin activate issu commit
install_add_activate_commit: START Fri Feb  8 10:07:51 jst 2019

*Feb  8 10:07:52.456 jst: %INSTALL-5-INSTALL_START_INFO: Switch 2 R0/0: install_engine: Started install one-shot ISSU flash:cat9k_iosxe.16.09.02.SPA.bininstall_add_activate_commit: Adding ISSU

--- Starting initial file syncing ---
[2]: Copying flash:cat9k_iosxe.16.09.02.SPA.bin from switch 2 to switch 1
[1]: Finished copying to switch 1  
Info: Finished copying flash:cat9k_iosxe.16.09.02.SPA.bin to the selected switch(es)
Finished initial file syncing

--- Starting Add ---
Performing Add on all members
  [1] Add package(s) on switch 1
  [1] Finished Add on switch 1
  [2] Add package(s) on switch 2
  [2] Finished Add on switch 2
Checking status of Add on [1 2]
Add: Passed on [1 2]
Finished Add

install_add_activate_commit: Activating ISSU

Going to start Oneshot ISSU install process

STAGE 0: Initial System Level Sanity Check before starting ISSU
===================================================
--- Verifying install_issu supported ---
--- Verifying standby is in Standby Hot state ---
--- Verifying booted from the valid media ---
--- Verifying AutoBoot mode is enabled ---
Finished Initial System Level Sanity Check


STAGE 1: Installing software on Standby
===================================================
--- Starting install_remote ---
Performing install_remote on Chassis remote
[1] install_remote package(s) on switch 1
[1] Finished install_remote on switch 1
install_remote: Passed on [1]
Finished install_remote


STAGE 2: Restarting Standby
===================================================
--- Starting standby reload ---
Finished standby reload

--- Starting wait for Standby to reach terminal redundancy state ---     <<<<< Standby (Sw-1) reloads here!!!


    <<<<<<<< After Standby (Sw-1) comes up >>>>>>>>>>>

    *Feb  8 10:19:10.223 jst: %REDUNDANCY-3-IPC: IOS versions do not match.

    *Feb  8 10:19:48.421 jst: %HA_CONFIG_SYNC-6-BULK_CFGSYNC_SUCCEED: Bulk Sync succeeded

    *Feb  8 10:19:49.422 jst: %RF-5-RF_TERMINAL_STATE: Terminal state reached for (SSO)   <<<<< Standby (Sw-1) comes up on new code and joins as Hot Standby..


    *Feb  8 10:21:02.975 jst: %PLATFORM-6-HASTATUS_DETAIL: RP switchover, received chassis event became active. Switch to primary (count 1)   <<<<<< Switchover happens after this log and the previous active (Sw-2) reloads.

    <<<<<<<< After new Standby (Sw-2) comes up >>>>>>>>

    *Feb  8 10:27:09.715 jst: %HA_CONFIG_SYNC-6-BULK_CFGSYNC_SUCCEED: Bulk Sync succeeded

    *Feb  8 10:27:10.717 jst: %RF-5-RF_TERMINAL_STATE: Terminal state reached for (SSO).  <<<< ISSU commit starts after this automatically..


    *Feb  8 10:28:27.302 jst: %INSTALL-5-INSTALL_START_INFO: Switch 2 R0/0: install_engine: Started install commit
    %IOSXEBOOT-4-ISSU_ONE_SHOT: (rp/0): ISSU finished successfully

    *Feb  8 10:29:32.127 jst: %INSTALL-5-INSTALL_COMPLETED_INFO: Switch 2 R0/0: install_engine: Completed install commit ISSU


     完成ISSU後繼續到。

    三步工作流程

    • 此工作流程包括三個步驟：新增、啟用和提交。啟用後，除了不會自動提交軟體之外，所有交換機都將升級到新的軟體版本，但必須通過install commit命令手動執行。
    • 此方法的優點是系統可以回滾到以前的軟體版本。
    • 如果回滾計時器未停止並使用install auto-abort-timer stop或install commit命令，系統會自動回滾。如果回滾計時器停止，則新軟體版本可以在裝置上運行任意持續時間，然後回滾到以前的版本。

    步驟1. 安裝add。

     此指令將映像下載到bootflash中，並在兩台交換器上展開映像。

    // This example has SW-1 as Active and Sw-2 as Standby before starting ISSU

    C9500#install add file flash:cat9k-universalk9.SPA.16.09.03.BETA.E1.SSA.bin.bin    
    install_add: START Fri Feb  8 09:22:00 jst 2019

    *Feb  8 09:22:02.055 jst: %INSTALL-5-INSTALL_START_INFO: Switch 1 R0/0: install_engine: Started install add flash:cat9k-universalk9.SPA.16.09.03.BETA.E1.SSA.bin.bininstall_add: Adding PACKAGE

    --- Starting initial file syncing ---
    [1]: Copying flash:cat9k-universalk9.SPA.16.09.03.BETA.E1.SSA.bin.bin from switch 1 to switch 2
    [2]: Finished copying to switch 2  
    Info: Finished copying flash:cat9k-universalk9.SPA.16.09.03.BETA.E1.SSA.bin.bin to the selected switch(es)
    Finished initial file syncing

    --- Starting Add ---
    Performing Add on all members
      [1] Add package(s) on switch 1
      [1] Finished Add on switch 1
      [2] Add package(s) on switch 2
      [2] Finished Add on switch 2
    Checking status of Add on [1 2]
    Add: Passed on [1 2]
    Finished Add

    SUCCESS: install_add  Fri Feb  8 09:26:26 jst 2019  <<<< Wait until install_add says SUCCESS. If fails, manually abort ISSU.

    步驟2. 安裝啟用。

    • 當您執行此命令時，會發生以下一系列事件：

       (i)啟動回滾計時器。如果回滾計時器過期，則系統回滾到ISSU啟動之前的相同狀態。使用install auto-abort-timer stop命令時，可以停止回滾計時器。使用install abort issu 指令時，可以回滾ISSU。

          (ii)備用交換器已布建新軟體，並使用新軟體版本重新載入。接下來，使用新軟體布建作用中交換器，並將其重新載入。具有新映像的備用交換機現在成為活動交換機，而舊的活動交換機成為備用交換機。

    在此過程結束時，兩台交換器都會使用新的軟體映像執行。

    C9500#install activate issu
install_activate: START Fri Feb  8 09:28:27 jst 2019
install_activate: Activating ISSU

*Feb  8 09:28:28.905 jst: %INSTALL-5-INSTALL_START_INFO: Switch 1 R0/0: install_engine: Started install activate ISSU
Going to start Activate ISSU install process

STAGE 0: Initial System Level Sanity Check before starting ISSU===================================================
--- Verifying install_issu supported ---
--- Verifying standby is in Standby Hot state ---
--- Verifying booted from the valid media ---
--- Verifying AutoBoot mode is enabled ---
Finished Initial System Level Sanity Check
STAGE 1: Installing software on Standby
===================================================
--- Starting install_remote ---
Performing install_remote on Chassis remote

*Feb  8 09:28:31.880 jst: %INSTALL-5-INSTALL_AUTO_ABORT_TIMER_PROGRESS: Switch 1 R0/0: rollback_timer: Install auto abort timer can expire in 7200 seconds


[2] install_remote package(s) on switch 2
[2] Finished install_remote on switch 2
install_remote: Passed on [2]
    Finished install_remote
    
STAGE 2: Restarting Standby
===================================================
--- Starting standby reload ---
Finished standby reload--- Starting wait for Standby to reach terminal redundancy state ---      <<<<<<<< Standby (Sw-2) reloads here!!!*Feb  8 09:35:16.489 jst: %REDUNDANCY-3-IPC: IOS versions do not match.
 
*Feb  8 09:36:00.238 jst: %HA_CONFIG_SYNC-6-BULK_CFGSYNC_SUCCEED: Bulk Sync succeeded
*Feb  8 09:36:01.240 jst: %RF-5-RF_TERMINAL_STATE: Terminal state reached for (SSO)     <<<< At this point, Standby (Sw-2) comes up with new code and joins as Hot Standby
Finished wait for Standby to reach terminal redundancy state
    
STAGE 3: Installing software on Active    
===================================================
--- Starting install_active ---

    Performing install_active on Chassis 11] install_active package(s) on switch 1
[1] Finished install_active on switch 1
install_active: Passed on [1]
Finished install_active
    Chassis 1 reloading, reason - Non participant detected

    STAGE 4: Restarting Active (switchover to standby)      <<<<<<<< At this point, there is a switchover and then the previous Active (Sw-1) reloads.
===================================================
--- Starting active reload ---
 New software can load after reboot process is completed
SUCCESS: install_activate  Fri Feb  8 09:37:14 jst 2019

    在Activate狀態結束時，檢查ISSU狀態。

    C9500#show issu state detail
--- Starting local lock acquisition on switch 2 ---
Finished local lock acquisition on switch 2

Operation type: Step-by-step ISSU
Install type  : Image installation using ISSUCurrent state : Activated state
Last operation: Switchover

Completed operations:

Operation                           Start time
-------------------------------------------------------
Activate location standby Chassis 2 2019-02-08:09:28:32
Activate location active Chassis 1  2019-02-08:09:36:03
Switchover                          2019-02-08:09:37:16

    State transition: Added -> Standby activated -> Active switched-over 

Auto abort timer: automatic, remaining time before rollback: 01:43:55
Running image: flash:packages.conf
Operating mode: sso, terminal state reached    <<<<< Wait until SSO terminal state before proceeding to commit.

    步驟3.  安裝提交。

    commit命令將執行必要的清理，啟用新軟體作為永久軟體（刪除軟體的舊版本），並停止回滾計時器。提交後的任何重新啟動都可以用新軟體啟動。

    C9500#install commit 
install_commit: START Fri Feb  8 09:45:22 jst 2019
install_commit: Committing ISSU

*Feb  8 09:45:23.533 jst: %INSTALL-5-INSTALL_START_INFO: Switch 2 R0/0: install_engine: Started install commit

Going to start Commit ISSU install process

STAGE 0: Initial System Level Sanity Check before starting ISSU
===================================================
--- Verifying install_issu supported ---
--- Verifying standby is in Standby Hot state ---
--- Verifying booted from the valid media ---
--- Verifying AutoBoot mode is enabled ---

    Finished Initial System Level Sanity Check

--- Starting install_commit_2 ---
Performing install_commit_2 on Chassis 2
[2] install_commit_2 package(s) on switch 2
[2] Finished install_commit_2 on switch 2
install_commit_2: Passed on [2]
Finished install_commit_2


STAGE 1: Dispatching the commit command to remote
===================================================
--- Starting install_commit_remote ---
Performing install_commit_remote on Chassis 1
Feb  8 09:48:33.364: %INSTALL-5-INSTALL_START_INFO: R0/0: install_engine: Started install commit

*Feb  8 09:48:33.352 jst: %INSTALL-5-INSTALL_START_INFO: Switch 1 R0/0: install_engine: Started install commit


Feb  8 09:51:27.505: %INSTALL-5-INSTALL_COMPLETED_INFO: R0/0: install_engine: Completed install commit ISSU
[1] install_commit_remote package(s) on switch 1
[1] Finished install_commit_remote on switch 1
install_commit_remote: Passed on [1]
Finished install_commit_remote

SUCCESS: install_commit  Fri Feb  8 09:51:27 jst 2019     <<<<< ISSU is completed here!!!!!

    ISSU後檢查清單

    ISSU成功完成後，

    • 檢查兩台交換器是否均在新軟體上運行。
    • 選中show issu state detail output to be clean and not showing any ISSU in progress。
    • 檢查show install issu history輸出以確保ISSU操作成功（命令僅適用於16.10.1版及更高版本）。
    • 建議您在啟用任何新功能之前，在新軟體中給予足夠的浸泡時間。

    ISSU故障時的操作

    • 如果ISSU發生故障，則自動中止可能會將系統恢復到初始狀態（較舊的映像）。但是，如果此操作也失敗，則需要手動恢復機箱。
    • 在手動恢復期間，檢查主用和備用是否均運行舊映像（如果均未運行，則恢復單個機箱）。
    • 確保兩個機箱都運行舊映像後，運行install remove inactive以刪除所有未使用的映像軟體包。
    • 兩個機箱運行舊軟體後，手動清除ISSU操作的所有內部狀態。（請參閱此處瞭解如何清除內部ISSU狀態）。

    中止ISSU

    • 在3步工作流程中，在啟用ISSU過程中，如果abort-timer過期，系統可以自動中止到較舊的映像。
    note-icon

    注意：如果備用裝置在中止期間未達到SSO，則需要手動中止。此外，如果由於任何原因，您希望在中間中止ISSU，則需要手動中止。

    EXAMPLE : During install add, we notice these errors:

    C9400#install add file flash:cat9k_iosxe.16.09.02.SPA.bin
install_add: START Tue Nov 13 20:47:53 UTC 2018

*Nov 13 20:47:54.787: %INSTALL-5-INSTALL_START_INFO: Chassis 1 R1/0: install_engine: Started install add flash:cat9k_iosxe.16.09.02.SPA.bininstall_add: Adding PACKAGE

--- Starting initial file syncing ---
[1]: Copying flash:cat9k_iosxe.16.09.02.SPA.bin from chassis 1 to chassis 2
[2]: Finished copying to chassis 2  
Info: Finished copying flash:cat9k_iosxe.16.09.02.SPA.bin to the selected chassis
Finished initial file syncing

--- Starting Add ---
Performing Add on all members
  [1] Add package(s) on chassis 1
  [1] Finished Add on chassis 1
  [2] Add package(s) on chassis 2
    cp: cannot stat '/tmp/packages.conf': No such file or directory
  [2] Finished Add on chassis 2
Checking status of Add on [1 2]
Add: Passed on [1]. Failed on [2]
Finished Add

FAILED: install_add  exit(1) Tue Nov 13 20:51:58 UTC 2018   <<<<<< install_add failed. If see any such error, first do a manual abort before proceeding further.  


C9400#install abort issu 
install_abort: START Tue Nov 13 20:57:40 UTC 2018
install_abort: Abort type ISSU subtype NONE smutype NONE

*Nov 13 20:57:41.759: %INSTALL-5-INSTALL_START_INFO: Chassis 1 R1/0: install_engine: Started install abort ISSU
NOTE: Going to start Abort ISSU install process

STAGE 0: Initial System Level Sanity Check before starting ISSU
===================================================
--- Verifying install_issu supported ---
--- Verifying booted from the valid media ---
--- Verifying AutoBoot mode is enabled ---
Finished Initial System Level Sanity Check

FAILED: ABORT operation is not allowed in ADDED state
ERROR: install_abort  exit(2 ) Tue Nov 13 20:57:49 UTC 2018

*Nov 13 20:57:49.756: %INSTALL-5-INSTALL_COMPLETED_INFO: Chassis 1 R1/0: install_engine: Completed install abort ISSU

    清除ISSU狀態

    如果ISSU升級/降級/中止/自動中止失敗，則需要手動清除ISSU內部狀態。

    C9400#sh issu state detail
--- Starting local lock acquisition on chassis 1 ---
Finished local lock acquisition on chassis 1

Operation type: One-shot ISSU
Install type  : Image installation using ISSU
Current state : Added state
Last operation: Activate location standby Chassis 2   <<<< Previous Add is still pending. This needs to be cleared before starting ISSU

Completed operations:

Operation                           Start time
-------------------------------------------------------
Activate location standby Chassis 2 2018-11-13:16:26:34   

State transition: Added 

Auto abort timer: inactive
Running image: flash:packages.conf
Operating mode: sso, terminal state not reached

Enable Service Internal before you run this command
    
C9400#clear install state   
clear_install_state: START Tue Nov 13 17:05:47 UTC 2018
--- Starting clear_install_state ---
Performing clear_install_state on all members
  [1] clear_install_state package(s) on chassis 1
  [1] Finished clear_install_state on chassis 1
Checking status of clear_install_state on [1]
clear_install_state: Passed on [1]
Finished clear_install_state

C9400#sh issu state detail 
--- Starting local lock acquisition on chassis 1 ---
Finished local lock acquisition on chassis 1

No ISSU operation is in progress

    修訂記錄

    修訂 發佈日期 意見
    2.0
    18-May-2023
    已刪除PII。已更新標題、簡介、樣式要求、機器翻譯、德語和格式。
    1.0
    14-May-2019
    初始版本
    TAC Authored

    由思科工程師貢獻

    • Piriyankaa Palanivel Ravikumar
      Cisco TAC Engineer

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