Entenda a atualização aprimorada de software rápido - Quad-SUP no Catalyst 6500 VSS

Introdução

Este documento descreve um procedimento ISSU/eFSU passo a passo nos Cisco Catalyst 6500 Series Switches no modo VSS com o uso do Supervisor 6T com dual-homed em uma configuração Quad-SUP.

Pré-requisitos

Requisitos

A Cisco recomenda que você tenha conhecimento destes tópicos:

• Conhecimento básico da instalação e configuração do sistema de switching virtual (VSS) QUAD-SUP do Catalyst 6500
• Cópia de imagens usando o método TFTP/USB/WebUI

Componentes Utilizados

As informações neste documento são baseadas no Cisco Catalyst 6500 Virtual Switching System no Cisco IOS® Software Release 15.5(1)SY12 ou posterior

versões de software e hardware.

As informações neste documento foram criadas a partir de dispositivos em um ambiente de laboratório específico. Todos os dispositivos utilizados neste documento foram iniciados com uma configuração (padrão) inicial. Se a rede estiver ativa, certifique-se de que você entenda o impacto potencial de qualquer comando.

Topologia

Verificação da Matriz de Compatibilidade

Etapa 1. Consulte este documento da Cisco; https://www.cisco.com/c/en/us/support/switches/catalyst-6500-series-switches/products-release-notes-list.html#anchor142.

Etapa 2. Verificar usando o comando na CLI do dispositivo:

WS-C6504-E-1#show issu comp-matrix stored

Number of Matrices in Table = 1

(1) Matrix for s2t54-ADVENTERPRISEK9-M(10) - s2t54-ADVENTERPRISEK9-M(10) 
==========================================
Start Flag (0xDEADBABE)

My Image ver: 15.5(1)SY13
Peer Version Compatibility
------------ -------------
15.1(2)SY Incomp(1)
15.1(2)SY1 Incomp(1)
15.1(2)SY2 Incomp(1)
15.5(1)SY Dynamic(0)
15.5(1)SY1 Dynamic(0)
15.1(2)SY12 Incomp(1)
15.2(1)SY6 Incomp(1)
15.4(1)SY4 Incomp(1)
15.5(1)SY2 Dynamic(0)
15.5(1)SY3 Dynamic(0)
15.5(1)SY4 Dynamic(0)
15.5(1)SY5 Dynamic(0)
15.5(1)SY6 Dynamic(0)
15.5(1)SY7 Dynamic(0)
15.5(1)SY8 Dynamic(0)
15.5(1)SY9 Dynamic(0)
15.5(1)SY10 Dynamic(0)
15.5(1)SY11 Dynamic(0)
15.5(1)SY12 Dynamic(0)
15.5(1)SY13 Comp(3)

Procedimento de atualização

Etapa 1. Verifique se a nova imagem do Cisco IOS (Cisco IOS Software Release 15.5(1)SY13) está presente no bootdisk,slavebootdisk,ics-bootdisk,slave-ics-bootdisk.

WS-C6504-E-1#dir bootdisk: | i SY13 
8 -rw- 167430292 Apr 16 2024 22:55:58 +00:00 s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
WS-C6504-E-1#dir slavebootdisk: | i SY13 
19 -rw- 167430292 Apr 16 2024 00:37:58 +00:00 s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
WS-C6504-E-1#dir ics-bootdisk: | i SY13 
11 -rw- 167430292 Apr 16 2024 23:06:18 +00:00 s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
WS-C6504-E-1#dir slave-ics-bootdisk: | i SY13
5 -rw- 167430292 Apr 16 2024 23:20:18 +00:00 s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin

Etapa 2. Use estes comandos para verificar se o VSS está pronto para executar o procedimento de atualização:

WS-C6504-E-1#show redundancy
Redundant System Information :
------------------------------
       Available system uptime = 1 day, 4 hours, 41 minutes
Switchovers system experienced = 0
              Standby failures = 1
        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 1/1
        Current Software state = ACTIVE                                                           >> Switch 1 Slot 1 is active
       Uptime in current state = 1 day, 4 hours, 41 minutes
                 Image Version = Cisco IOS Software, s2t54 Software (s2t54-ADVENTERPRISEK9-M), Version 15.5(1)SY12, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2023 by Cisco Systems, Inc.
Compiled Tue 05-Sep-23 11:24 by mcpre
                          BOOT = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;
                   CONFIG_FILE =
                       BOOTLDR =
        Configuration register = 0x2102
Peer Processor Information :
----------------------------
              Standby Location = slot 2/1                         
        Current Software state = STANDBY HOT                                                      >> Switch 2 Slot 1 is standby
       Uptime in current state = 19 hours, 43 minutes
                 Image Version = Cisco IOS Software, s2t54 Software (s2t54-ADVENTERPRISEK9-M), Version 15.5(1)SY12, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2023 by Cisco Systems, Inc.
Compiled Tue 05-Sep-23 11:24 by mcpre
                          BOOT = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;
                   CONFIG_FILE =
                       BOOTLDR =
        Configuration register = 0x2102

WS-C6504-E-1#show issu state detail
 The system is configured to be upgraded in staggered mode.
 4 supervisor nodes are found to be online.
 Summary: the system will be upgraded in staggered mode.

Slot = 1/1
RP State = Active
ISSU State = Init
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;
      Operating Mode = sso
      ISSU Sub-State = No Upgrade Operation in Progress
      Starting Image = N/A
        Target Image = N/A
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin

Slot = 2/1
RP State = Standby
ISSU State = Init
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;
      Operating Mode = sso
      ISSU Sub-State = No Upgrade Operation in Progress
      Starting Image = N/A
        Target Image = N/A
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin

Slot = 1/2
RP State = Active-ICS
ISSU State = Init
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;
      Operating Mode = sso
      ISSU Sub-State = No Upgrade Operation in Progress
      Starting Image = N/A
        Target Image = N/A
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin

Slot = 2/2
RP State = Standby-ICS
ISSU State = Init
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;
      Operating Mode = sso
      ISSU Sub-State = No Upgrade Operation in Progress
      Starting Image = N/A
        Target Image = N/A
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin

Etapa 3. Use o comando issu loadversionpara iniciar o processo de atualização.

Nesta etapa, o chassi em espera do VSS é reinicializado, recarregado com a nova imagem e inicializado como o chassi em espera do VSS no modo de redundância Stateful Switchover (SSO), executando a nova imagem. Esta etapa é concluída quando a configuração do chassi é sincronizada, conforme indicado pela mensagem Sincronização em massa bem-sucedida. Pode levar de alguns segundos a alguns minutos para que a nova imagem seja carregada e para que o chassi em espera do VSS faça a transição para o modo SSO.

WS-C6504-E-1#issu loadversion 1/1 bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin 2/1 slavebootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
System configuration has been modified. Save? [yes/no]: y
Building configuration...
[OK]
*Apr 17 00:43:14.195: %ISSU_PROCESS-SW1-3-LOADVERSION: Loadversion sequence will begin in 60 seconds. Enter 'issu abortversion' to cancel.
*Apr 17 00:43:44.195: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Resetting Standby shortly
*Apr 17 00:43:44.195: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Resetting Standby ICS shortly
*Apr 17 00:43:44.199: %ISSU_PROCESS-SW2_STBY-6-SELF_RELOAD: slot 33 countdown to self-reload started, 30 second delay
*Apr 17 00:43:44.199: %ISSU_PROCESS-SW2-2_STBY-6-SELF_RELOAD: slot 34 countdown to self-reload started, 30 second delay
*Apr 17 00:44:29.195: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Standby ICS has gone offline
*Apr 17 00:44:29.195: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Standby has gone offline
*Apr 17 00:46:59.195: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Standby has come online, wait for Standby ICS
*Apr 17 00:47:44.503: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Standby ICS has come online
*Apr 17 00:49:15.363: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Standby reached terminal state
*Apr 17 00:49:29.199: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Standby ICS reached terminal state, wait for system to settle
*Apr 17 00:49:59.195: %ISSU_PROCESS-SW1-3-LOADVERSION: Loadversion has completed. Please issue the 'issu runversion' command after all modules come online.
*Apr 17 00:49:59.195: %ISSU_PROCESS-SW1-3-LOADVERSION: Loadversion has completed. Please issue the 'issu runversion' command after all modules come online.

Etapa 4. A variável de inicialização para standby deve apontar para uma nova Imagem na show issu state detail saída.

WS-C6504-E-1#show issu state detail
 The system is configured to be upgraded in in-tandem mode.
 4 supervisor nodes are found to be online.
         Summary: an in-tandem upgrade is in progress.

Slot = 1/1
RP State = Active
ISSU State = Load Version
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12
      Operating Mode = sso
      ISSU Sub-State = Load Version Completed
      Starting Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin
        Target Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin

Slot = 2/1
RP State = Standby
ISSU State = Load Version
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
      Operating Mode = sso
      ISSU Sub-State = Load Version Completed
      Starting Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin
        Target Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin                       >> Standby Chassis has been upgraded to latest code

Slot = 1/2
RP State = Active-ICS
ISSU State = Load Version
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12
      Operating Mode = sso
      ISSU Sub-State = Load Version Completed
      Starting Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin
        Target Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin

Slot = 2/2
RP State = Standby-ICS
ISSU State = Load Version
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
      Operating Mode = sso
      ISSU Sub-State = Load Version Completed
      Starting Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin
        Target Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin                       >> Standby Chassis has been upgraded to latest code             

Etapa 5. Quando o chassi em standby do VSS executa com êxito a nova imagem no estado de redundância do SSO e todas as placas de linha no chassi em standby do VSS estão ativadas e on-line, insira o comando issu runversion para forçar um switchover. O chassi em standby VSS atualizado assume como o novo chassi ativo, executando a nova imagem. O chassi anteriormente ativo é recarregado e inicializado como o novo chassi em standby VSS no modo SSO, executando a imagem antiga (caso o upgrade de software precise ser anulado e a imagem antiga restaurada). Esta etapa é concluída quando a configuração do chassi é sincronizada, conforme indicado pela mensagem Sincronização em massa bem-sucedida.

WS-C6504-E-1#issu runversion
This command will reload the Active unit.  Proceed ? [confirm]y
%issu runversion initiated successfully
*Apr 17 00:54:42.707: %ISSU_PROCESS-SW1-2_STBY-6-SELF_RELOAD: slot 18 countdown to self-reload started, 3 second delay
*Apr 17 00:54:44.715: %RF-SW1-5-RF_RELOAD: Self reload. Reason: Admin ISSU runversion CLI
*Apr 17 00:54:46.719: %SYS-SW1-5-SWITCHOVER: Switchover requested by Exec. Reason: Admin ISSU runversion CLI.
Initializing as Virtual Switch STANDBY processor
*Apr 17 00:57:14.023: %VSLP-5-VSL_UP:  Ready for control traffic
*Apr 17 00:57:24.919: %PFREDUN-SW1_STBY-6-STANDBY: Initializing for SSO mode in Default Domain

Etapa 6. Verifique o status depois que o switchover estiver concluído.

WS-C6504-E-1#show issu state detail
 The system is configured to be upgraded in in-tandem mode.
 4 supervisor nodes are found to be online.
         Summary: an in-tandem upgrade is in progress.

Slot = 2/1
RP State = Active
ISSU State = Run Version
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
      Operating Mode = sso
      ISSU Sub-State = Run Version after Switchover
      Starting Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin
        Target Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin                       >> Switch 2 became the active after switchover        

Slot = 1/1
RP State = Standby
ISSU State = Run Version
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;
      Operating Mode = sso
      ISSU Sub-State = Run Version in Progress
      Starting Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin
        Target Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin

Slot = 2/2
RP State = Active-ICS
ISSU State = Run Version
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
      Operating Mode = sso
      ISSU Sub-State = Run Version in Progress
      Starting Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin
        Target Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin

Slot = 1/2
RP State = Standby-ICS
ISSU State = Run Version
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;
      Operating Mode = sso
      ISSU Sub-State = Run Version in Progress
      Starting Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin
        Target Image = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin

WS-C6504-E-1#sh redundancy    
Redundant System Information :
------------------------------
       Available system uptime = 44 minutes
Switchovers system experienced = 1
              Standby failures = 0
        Last switchover reason = user forced
                 Hardware Mode = Duplex
    Configured Redundancy Mode = sso
     Operating Redundancy Mode = sso
              Maintenance Mode = Disabled
                Communications = Up
Current Processor Information :
-------------------------------
               Active Location = slot 2/1
        Current Software state = ACTIVE
       Uptime in current state = 7 minutes
                 Image Version = Cisco IOS Software, s2t54 Software (s2t54-ADVENTERPRISEK9-M), Version 15.5(1)SY13, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2024 by Cisco Systems, Inc.
Compiled Tue 19-Mar-24 06:59 by mcpre
                          BOOT = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
                   CONFIG_FILE =
                       BOOTLDR =
        Configuration register = 0x2102
Peer Processor Information :
----------------------------
              Standby Location = slot 1/1
        Current Software state = STANDBY HOT
       Uptime in current state = 2 minutes
                 Image Version = Cisco IOS Software, s2t54 Software (s2t54-ADVENTERPRISEK9-M), Version 15.5(1)SY12, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2023 by Cisco Systems, Inc.
Compiled Tue 05-Sep-23 11:24 by mcpre
                          BOOT = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12;
                   CONFIG_FILE =
                       BOOTLDR =
        Configuration register = 0x2102

Etapa 7. Use o comando issu acceptversion para parar o temporizador de reversão. Isso é necessário porque, se o temporizador expirar, o chassi atualizado será recarregado e revertido para a versão de software anterior.

WS-C6504-E-1# show issu rollback-timer
Rollback Process State = In progress
 Configured Rollback Time = 00:45:00
 Automatic Rollback Time = 00:37:28

WS-C6504-E-1# issu acceptversion
% Rollback timer stopped. Please issue the commitversion command.
View the rollback timer to see that the rollback process has been stopped:
WS-C6504-E-1# show issu rollback-timer
Rollback Process State = Not in progress                                                         >> Rollback Process is stopped after the acceptversion                                              

Etapa 8. Caso o Fabric Extender (FEX) seja usado na configuração, use o comando issu runversion fex all para iniciar o procedimento de download de imagem e atualização no FEX (6800IA). O FEX aciona o download da imagem do novo pacote de software do Supervisor6T (aqui, Cisco IOS Software Release 15.5(1)SY13). Se você usar pilhas FEX, o mestre será responsável por extrair a imagem de seus membros.

Etapa 9. Para continuar, insira o comando issu commversion para atualizar o chassi em standby VSS e conclua a sequência In-Service Software Upgrade (ISSU). O chassi em standby do VSS é reinicializado, recarregado com a nova imagem e inicializado como o chassi em standby do VSS no estado de redundância do SSO, executando a nova imagem. Esta etapa é concluída quando a configuração do chassi é sincronizada, como indicado pela mensagem Bulk sync successful, e todas as placas de linha do novo VSS-Standby estão ativadas e on-line.

WS-C6504-E-1# issu commitversion
%issu commitversion initiated successfully, upgrade sequence will continue shortly

WS-C6504-E-1#
*Apr 17 01:02:57.607: %ISSU_PROCESS-SW2-3-COMMITVERSION: issu commitversion; Commitversion sequence will begin in 60 seconds. Enter 'issu abortversion' to cancel.
*Apr 17 01:03:27.607: %ISSU_PROCESS-SW2-6-COMMITVERSION_INFO: Resetting Standby shortly
*Apr 17 01:03:27.607: %ISSU_PROCESS-SW2-6-COMMITVERSION_INFO: Resetting Standby ICS shortly
*Apr 17 01:03:27.611: %ISSU_PROCESS-SW1-2_STBY-6-SELF_RELOAD: slot 18 countdown to self-reload started, 30 second delay
*Apr 17 01:03:27.611: %ISSU_PROCESS-SW1_STBY-6-SELF_RELOAD: slot 17 countdown to self-reload started, 30 second delay
*Apr 17 01:04:12.607: %ISSU_PROCESS-SW2-6-COMMITVERSION_INFO: Standby ICS has gone offline
*Apr 17 01:04:12.607: %ISSU_PROCESS-SW2-6-COMMITVERSION_INFO: Standby has gone offline
*Apr 17 01:06:42.607: %ISSU_PROCESS-SW2-6-COMMITVERSION_INFO: Standby has come online, wait for Standby ICS
*Apr 17 01:07:28.315: %ISSU_PROCESS-SW2-6-COMMITVERSION_INFO: Standby ICS has come online
*Apr 17 01:08:59.623: %ISSU_PROCESS-SW2-6-COMMITVERSION_INFO: Standby has reached terminal state
*Apr 17 01:09:12.699: %ISSU_PROCESS-SW2-6-COMMITVERSION_INFO: Standby ICS reached terminal state
*Apr 17 01:09:12.751: %ISSU_PROCESS-SW2-6-COMMITVERSION_INFO: Upgrade has completed, updating boot configuration
Building configuration...
[OK]

Etapa 10. Verifique se a atualização foi concluída.

WS-C6504-E-1#sh redundancy
Redundant System Information :
------------------------------
       Available system uptime = 55 minutes
Switchovers system experienced = 1
              Standby failures = 1
        Last switchover reason = user forced
                 Hardware Mode = Duplex
    Configured Redundancy Mode = sso
     Operating Redundancy Mode = sso
              Maintenance Mode = Disabled
                Communications = Up
Current Processor Information :
-------------------------------
               Active Location = slot 2/1
        Current Software state = ACTIVE
       Uptime in current state = 17 minutes
                 Image Version = Cisco IOS Software, s2t54 Software (s2t54-ADVENTERPRISEK9-M), Version 15.5(1)SY13, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2024 by Cisco Systems, Inc.
Compiled Tue 19-Mar-24 06:59 by mcpre
                          BOOT = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
                   CONFIG_FILE =
                       BOOTLDR =
        Configuration register = 0x2102
Peer Processor Information :
----------------------------
              Standby Location = slot 1/1
        Current Software state = STANDBY HOT
       Uptime in current state = 3 minutes
                 Image Version = Cisco IOS Software, s2t54 Software (s2t54-ADVENTERPRISEK9-M), Version 15.5(1)SY13, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2024 by Cisco Systems, Inc.
Compiled Tue 19-Mar-24 06:59 by mcpre
                          BOOT = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12                             >> Standby has been upgraded
                   CONFIG_FILE =
                       BOOTLDR =
        Configuration register = 0x2102

WS-C6504-E-1# show module switch all
 Switch Number:     1   Role:  Virtual Switch Standby
----------------------  -----------------------------
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  1    5  Supervisor Engine 2T 10GE w/ CTS (Hot) VS-SUP2T-10G       xxxx
  2    5  Supervisor Engine 2T 10GE w/ CTS (CSSO VS-SUP2T-10G       xxxx
  3   48  CEF720 48 port 10/100/1000mb Ethernet  WS-X6748-GE-TX     xxxx
Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  1  xxxx. xxxx. xxxx to xxxx. xxxx. xxxx 1.5   12.2(50r)SYS 15.5(1)SY13  Ok
  2  xxxx. xxxx. xxxx to xxxx. xxxx. xxxx 1.3   12.2(50r)SYS 15.5(1)SY13  Ok
  3  xxxx. xxxx. xxxx to xxxx. xxxx. xxxx 3.2   12.2(18r)S1  15.5(1)SY13  Ok
Mod  Sub-Module                  Model              Serial       Hw     Status
---- --------------------------- ------------------ ----------- ------- -------
  1  Policy Feature Card 4       VS-F6K-PFC4         xxxx        1.2    Ok
  1  CPU Daughterboard           VS-F6K-MSFC5        xxxx        2.0    Ok
  2  Policy Feature Card 4       VS-F6K-PFC4         xxxx        1.2    Ok
  2  CPU Daughterboard           VS-F6K-MSFC5        xxxx        1.4    Ok
  3  Centralized Forwarding Card WS-F6700-CFC        xxxx        4.1    Ok
Mod  Online Diag Status
---- -------------------
  1  Pass
  2  Pass
  3  Pass
 Switch Number:     2   Role:   Virtual Switch Active
----------------------  -----------------------------
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  1    5  Supervisor Engine 2T 10GE w/ CTS (Acti VS-SUP2T-10G       xxxx
  2    5  Supervisor Engine 2T 10GE w/ CTS (CSSO VS-SUP2T-10G       xxxx
  3   48  CEF720 48 port 10/100/1000mb Ethernet  WS-X6748-GE-TX     xxxx
Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  1  xxxx. xxxx. xxxx to xxxx. xxxx. xxxx 1.5   12.2(50r)SYS 15.5(1)SY13  Ok
  2  xxxx. xxxx. xxxx to xxxx. xxxx. xxxx 2.1   12.2(50r)SYS 15.5(1)SY13  Ok
  3  xxxx. xxxx. xxxx to xxxx. xxxx. xxxx 3.6   12.2(18r)S1  15.5(1)SY13  Ok
Mod  Sub-Module                  Model              Serial       Hw     Status
---- --------------------------- ------------------ ----------- ------- -------
  1  Policy Feature Card 4       VS-F6K-PFC4        xxxx         1.2    Ok
  1  CPU Daughterboard           VS-F6K-MSFC5       xxxx         2.0    Ok
  2  Policy Feature Card 4       VS-F6K-PFC4        xxxx         3.0    Ok
  2  CPU Daughterboard           VS-F6K-MSFC5       xxxx         3.1    Ok
  3  Centralized Forwarding Card WS-F6700-CFC       xxxx         4.1    Ok
Mod  Online Diag Status
---- -------------------
  1  Pass
  2  Pass
  3  Pass

WS-C6504-E-1# sh issu state detail
 The system is configured to be upgraded in in-tandem mode.
 4 supervisor nodes are found to be online.
 Summary: the system will be upgraded in in-tandem mode.
Slot = 2/1
RP State = Active
ISSU State = Init
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
      Operating Mode = sso
      ISSU Sub-State = No Upgrade Operation in Progress
      Starting Image = N/A
        Target Image = N/A
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
Slot = 1/1
RP State = Standby
ISSU State = Init
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
      Operating Mode = sso
      ISSU Sub-State = No Upgrade Operation in Progress
      Starting Image = N/A
        Target Image = N/A
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
Slot = 2/2
RP State = Active-ICS
ISSU State = Init
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
      Operating Mode = sso
      ISSU Sub-State = No Upgrade Operation in Progress
      Starting Image = N/A
        Target Image = N/A
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
Slot = 1/2
RP State = Standby-ICS
ISSU State = Init
Boot Variable = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin,12;bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY12.bin,12
      Operating Mode = sso
      ISSU Sub-State = No Upgrade Operation in Progress
      Starting Image = N/A
        Target Image = N/A
     Current Version = bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin

Solução de problemas de estudos de caso

Cenário 1. Atualização no Modo Dividido quando a Conectividade VSL Cruzada está Ausente

WS-C6504-E-1#issu loadversion 1/1 bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin 2/1 slavebootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
WS-C6504-E-1#*Apr 16 23:31:12.528: SW1:  Quad-sup ISSU Staggered mode VSL requirement(Parallel/Cross VSL connectivity) is NOT met. Disable Staggered mode using config cli "no issu upgrade staggered" to perform ISSU in default mode which is In-tandem.

Você recebe uma mensagem de erro que menciona que o requisito não foi atendido, pois você não tem uma conexão VSL cruzada para prosseguir.

Você pode executar a atualização desabilitando o grupo de distribuição.

WS-C6504-E-1(conf t)# no issu upgrade staggered

WS-C6504-E-1#issu loadversion 1/1 bootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin 2/1 slavebootdisk:s2t54-adventerprisek9-mz.SPA.155-1.SY13.bin
System configuration has been modified. Save? [yes/no]: y
Building configuration...
[OK]
*Apr 17 00:43:14.195: %ISSU_PROCESS-SW1-3-LOADVERSION: Loadversion sequence will begin in 60 seconds. Enter 'issu abortversion' to cancel.
*Apr 17 00:43:44.195: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Resetting Standby shortly
*Apr 17 00:43:44.195: %ISSU_PROCESS-SW1-6-LOADVERSION_INFO: Resetting Standby ICS shortly

Tandem Versus Escalonado

A atualização do VSS para Supervisor (SUP) duplo ou em tandem também é viável. No entanto, um chassi fica off-line durante todo o período de inicialização dos supervisores.

Um supervisor por vez é recarregado no modo padrão do Sup2T, modo escalonado. Isso implica que um supervisor que usa essa versão está presente quando as placas de linha estão preparadas para recarregamento. Como as placas de linha são recarregadas muito mais rápido do que os supervisores, o resultado é um tempo de inatividade significativamente menor no chassi.

Além disso, indica que um supervisor que usa o programa desatualizado está disponível, proporcionando um tempo de reversão muito mais rápido, se necessário. Para Sup2T, o modo padrão é escalonado.

O método de atualização escalonada pode ser desabilitado usando esse comando.

Cenário 2. Traçado Ativo com Imagem Mais Antiga

Aqui, basicamente, você pode ser atingido pela versão de execução ISSU.

Para a versão de execução do ISSU já existe um temporizador de reversão habilitado. Caso você não possa prosseguir, o temporizador automaticamente reverte para a imagem mais antiga.

Com relação à versão de confirmação ISSU, o temporizador de reversão está desabilitado, pois você forneceu uma versão aceita. Portanto, você deve executar este comando para reverter para a imagem mais antiga.

WS-C6504-E-1# issu abortversion

Cenário 3. Pós-alternância o standby não está surgindo

Desconecte o link VSL (Virtual Switch Link) fisicamente e atualize o dispositivo para a nova imagem usando o método USB/TFTP.

Após a atualização, desligue o dispositivo. Conecte o link VSL e traga o dispositivo para o VSS para que ele possa formar um standby.

Cenário 4. O ICS SUP pós-atualização permanece em versão mais antiga

Conecte o SUP sozinho em um chassi sobressalente ou em espera onde o impacto não seja visto, pois o ativo está funcionando bem.

Atualize o dispositivo para uma nova imagem usando o método USB/TFTP.

Em seguida, desligue-o e coloque-o no mesmo slot para que a imagem seja atualizada e volte como ICS (In-Chassis Standby, em espera no chassi) novamente com uma imagem mais recente.