在 Catalyst 3850 和 Catalyst 9000 系列交換器上執行 ISSU

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已更新: 2024 年 11 月 13 日
文件 ID:214406

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    簡介

    本文件說明在 Catalyst 3850 和 Catalyst 9000 系列交換器上執行服務中軟體升級 (ISSU) 所需的步驟。

    什麼是 ISSU

    服務中軟體升級這項程序，是當網路持續轉送封包時，在裝置上將映像檔升級至另一個映像檔的過程。ISSU 可協助網路管理員在執行軟體升級時避免網路中斷。映像檔會以安裝模式進行升級，也就是說每個套件都是個別升級的。

    支援 StackWise-Virtual 的 Catalyst 3850 與 Catalyst 9000 全系列產品，以及配備雙監督器的 Catalyst 9400/9600 獨立式機箱都支援 ISSU。

    StackWise Virtual (SVL) 包含了兩個彼此連結的交換器以構成一個虛擬交換器。SVL 支援服務中軟體升級。

    支援的平台與版本支援一覽表

    請先查看平台是否確實支援 ISSU，再繼續執行 ISSU。另外，請確認目前的程式碼與目標程式碼是否支援 ISSU。有關支援平台與 ISSU 相容性一覽表的更多詳細資料，請參閱這裡：

    不同版本間的 ISSU 支援

    執行 ISSU 之前的必備條件

    附註：本檔案中的範例基於設定為Stackwise-Virtual的Cisco Catalyst 9500交換器。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。
    為了避免在此過程中丟失任何資料包，ISSU需要在節點中同時向主用和備用裝置提供冗餘。由於發生重新載入，因此需要在它們之間進行切換，以確保您的網路具有高可用性。

    1. 查看目前程式碼版本

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

    2. 查看啟動模式

    只有 Stackwise Virtual 中的兩個交換器都在安裝模式中啟動時才支援 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"
 

    如果機箱以套件模式啟動，則不支援 ISSU。當交換器在套件模式下執行時，如果您嘗試執行 ISSU，就會看到此錯誤。

    *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. 查看快閃記憶體是否有充足的可用記憶體

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

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

    確認您的快閃記憶體具有至少 1 GB 的儲存空間，以擴充新的映像檔。如果空間不足，請清理舊的安裝檔案，並使用 install remove inactive 命令。

    4. 查看交換器是否處於 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. 查看自動啟動功能是否已經啟用

    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

    如果未啟用「自動啟動」，可以按照以下方式變更設定：

    C9500(config)#no boot manual

    6. 查看目前的 ISSU 與安裝狀態

    note-icon

    附註：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. 複製即將升級/降級的新映像檔

    只需要將映像檔複製到作用中機箱（若為 Stackwise），或作用中監督器（若為 Cat9400 雙 SUP）即可。

    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

    一旦所有必備條件經確認後，您便可繼續進行實際升級並使用下列其中一個方法：

    • 單一步驟工作流程（僅一個步驟，且不支援復原）
    • 三步驟工作流程（包含 3 個步驟，並支援在失敗時復原）

    單一步驟工作流程

    此工作流程僅含有一個步驟，並且有助於最佳化。

    note-icon

    附註：無法回滾，因為升級已自動提交。如果您想要復原，請繼續進行 3 步驟工作流程。

    // 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


     在 ISSU 完成後繼續進行。

    三步驟工作流程

    • 此工作流程包括三個步驟：新增、啟用和提交。在啟用後，所有交換器都會升級至新的軟體版本（未自動認可的軟體除外），不過必須透過 install commit 命令手動執行。
    • 此方法的優點在於，系統可以復原至先前的軟體版本。
    • 如果復原計時器並未停止，則系統會自動復原，並使用 install auto-abort-timer stop 或 install commit 命令如果復原計時器停止，則新的軟體版本可以在裝置上持續執行任意時間，然後復原至先前的版本。

    步驟1.安裝add。

     此命令會將映像檔下載至啟動快閃記憶體，並且在兩個交換器上加以擴充。

    // 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，此事件的順序就會發生：

       (i) 復原計時器會啟動。如果復原計時器過期，系統會復原至 ISSU 開始之前的相同狀態。當您使用 install auto-abort-timer stop 命令時，復原計時器會停止運作。當您使用 install abort issu 命令時，便可復原 ISSU。

          (ii) 待命交換器會以新的軟體佈建，而且會使用新的軟體版本重新載入。接著，作用中的交換器會以新的軟體佈建並重新載入。使用新映像檔的待命交換器現在會成為作用中交換器，而舊的作用中交換器則成為待命交換器。

    當此程序結束時，兩個交換器都會以新的軟體映像檔執行。

    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

    啟用狀態結束時，請檢查 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.  Install commit。

    commit 命令會執行必要的清理，使新軟體成為永久版本（移除舊版軟體），並停止復原計時器。在認可後，任何重新啟動都可以使用新軟體啟動。

    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!!!!!

    執行 ISSU 後的檢查清單

    ISSU 順利完成後，

    • 請檢查兩個交換器是否都以新軟體執行。
    • 查看要清理的 show issu state detail 輸出，並且不要顯示任何進行中的 ISSU。
    • 查看 show install issu history 輸出以確保 ISSU 作業成功（命令僅限 16.10.1 版與更新版本可用）。
    • 在您啟用任何新功能之前，建議您給新軟體足夠的測試時間。

    ISSU 失敗時採取的行動

    • 如果 ISSU 失敗，預期自動中止功能可以將系統復原為初始狀態（舊版映像檔）。 不過，如果這個作法也失敗，預期會執行機箱的手動復原。
    • 在手動復原期間，請檢查作用中與待命機箱是否都執行舊版映像檔（如果不是，請復原個別機箱）。
    • 在您確認兩個機箱都執行舊版映像檔後，請執行 install remove inactive 以移除任何未使用的映像檔套件。
    • 兩個機箱都執行舊版軟體後，請手動清理 ISSU 作業的所有內部狀態。（請參閱此處瞭解如何清理內部 ISSU 狀態）。

    中止 ISSU

    • 在 3 步驟工作流程的啟用 ISSU 程序進行期間，如果中止計時器過期，系統會自動中止並回到舊版映像檔。
    note-icon

    附註：如果備用裝置在中止期間未達到SSO，則需要手動中止。此外，如果出於任何原因，您想要在過程中中止 ISSU，則需手動中止。

    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

    清理 ISSU 狀態

    如果 ISSU 升級/降級/中止/自動中止失敗，則需要手動清理 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
    3.0
    13-Nov-2024
    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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