Este documento descreve as etapas envolvidas na execução do In-Service Software Upgrade (ISSU) nos switches Catalyst 3850 e Catalyst 9000 Series.
O In-Service Software Upgrade é um processo que atualiza uma imagem para outra imagem em um dispositivo enquanto a rede continua a encaminhar pacotes. O ISSU ajuda os administradores de rede a evitarem uma interrupção de rede quando executam uma atualização de software. As imagens são atualizadas no modo de instalação, em que cada pacote é atualizado individualmente.
O ISSU é suportado em todas as séries Catalyst 3850 e Catalyst 9000 que suportam Stackwise-Virtual e também em chassis autônomos Catalyst 9400 / 9600 com supervisores duplos.
O StackWise Virtual (SVL) compreende dois switches que são conectados juntos para formar um switch virtual. O SVL suporta atualizações de software em serviço.
Antes de continuar com o ISSU, verifique se a plataforma realmente suporta o ISSU. Além disso, verifique se o ISSU é suportado entre o código atual e o código de destino. Os detalhes do modo nas plataformas suportadas e na matriz de compatibilidade do ISSU podem ser encontrados aqui:
C9500#show version | in IOS XE Cisco IOS XE Software, Version 16.09.02
O ISSU é suportado apenas se ambos os switches no Stackwise Virtual forem inicializados no modo de instalação.
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"
Se o chassi for inicializado em um modo de pacote, o ISSU não é suportado. Você pode ver erros como esse se tentar executar o ISSU quando os switches estiverem sendo executados no modo de pacote.
*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
C9500#dir flash: | in free
11353194496 bytes total (8565174272 bytes free)
C9500#dir stby-flash: | in free
11353980928 bytes total (8566865920 bytes free)
Verifique se há pelo menos 1 GB de espaço na memória flash para expandir uma nova imagem. Limpe arquivos de instalação antigos em caso de espaço insuficiente e use o comando install remove inative.
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
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
Se a Inicialização automática não estiver habilitada, isso poderá ser alterado conforme mostrado:
C9500(config)#no boot manual
Note: Este passo é muito importante.
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 --------------------------------------------------------------------------------
É suficiente copiar a imagem somente para o chassi Ativo (no caso de Stackwise) ou para o supervisor Ativo (no caso de SUP duplo Cat9400).
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]?
Depois que todos os pré-requisitos forem verificados, você poderá prosseguir com a atualização real e usar um dos métodos listados:
Esse fluxo de trabalho envolve apenas uma etapa e ajuda na otimização.
Note: Não é possível reverter, pois a atualização é confirmada automaticamente. Vá para o Fluxo de trabalho de 3 etapas se desejar reverter.
// 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
Prossiga para depois que o ISSU for concluído.
Etapa 1. Instale o add.
Esse comando faz o download da imagem no flash de inicialização e a expande em ambos os switches.
// 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.
Etapa 2. Instale o ativate.
Ao final desse procedimento, ambos os switches são executados com a nova imagem de software.
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
No final do estado Ativate, verifique os estados de ISSU.
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.
Etapa 3. Instale o commit.
O comando commit executa a limpeza necessária, ativa o novo software como permanente (remove a versão mais antiga do software) e interrompe o temporizador de reversão. Qualquer reinicialização após a confirmação pode ser inicializada com o novo software.
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!!!!!
Quando o ISSU for concluído com êxito,
Note: Se o standby não alcançar o SSO durante o abortamento, o abortamento manual será necessário. Além disso, se por qualquer motivo você quiser abortar o ISSU no meio, o abortamento manual é necessário.
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
Se o upgrade/downgrade/abort/auto-abort do ISSU não for bem-sucedido, a limpeza manual dos estados internos do ISSU será necessária.
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
| Revisão | Data de publicação | Comentários |
|---|---|---|
4.0 |
23-Sep-2026
|
Recertificação - requisitos de estilo atualizados, links de destino e formatação. |
3.0 |
13-Nov-2024
|
PII removido.
Título atualizado, Introdução, Requisitos de estilo, Tradução automática, Gerunds e Formatação. |
1.0 |
14-May-2019
|
Versão inicial |