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本文档介绍如何升级 Cisco Catalyst 3850 系列交换机并提供软件或引导故障的恢复技术。
Cisco 建议您了解以下主题:
本文档中的信息基于运行 Cisco IOS XE 版本 03.03.00 及更高版本的 Cisco Catalyst 3850 系列交换机。本文档中的示例使用堆叠解决方案;但您可以在独立交换机上运行相同的命令。
注意:要从思科网站下载 Cisco IOS XE 映像,您必须拥有有效的思科连接在线 (CCO) 账户和经过授权的凭证。思科不提供免费的 TFTP/FTP 解决方案。在开始之前,请安装并配置 TFTP/FTP。
本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始(默认)配置。如果您的网络处于活动状态,请确保您了解所有命令的潜在影响。
Cisco Catalyst 3850 系列交换机有两种运行模式:安装模式和捆绑包模式。
这两种模式之间有一些细微的差别。有关详情,请参阅配置指南。
思科建议在操作时使用安装模式,因为此模式可以提供更完善的功能,引导时所需的资源也更少。本文档仅提供两种模式的概括介绍,以供参考。
这是交换机的默认模式。安装模式使用名为 packages.conf 的软件包调配文件来引导交换机。另外,闪存中有多个 .pkg 文件。 思科建议您不要更改这些文件,除非是在思科技术支持中心 (TAC) 工程师的指导下进行。
如果您习惯使用传统的单核 Cisco IOS 映像来启动交换机,则可能比较熟悉捆绑包模式下的体验。
捆绑包模式消耗的内存比安装模式要多,因为升级时会从捆绑包中解压软件包,并复制到 RAM 中。
要验证该模式,请输入 命令:show version
3850-stack#show version
Cisco IOS Software, Cisco IOS-XE Software, Catalyst L3 Switch Software
(CAT3K_CAA-UNIVERSALK9-M), Version 03.03.00SE RELEASE SOFTWARE (fc1)
Switch Ports Model SW Version SW Image Mode
------------------ ---------- ---------- ----
1 32 WS-C3850-24P 03.03.00SE cat3k_caa-universalk9 INSTALL
* 2 56 WS-C3850-48T 03.03.00SE cat3k_caa-universalk9 INSTALL
要开始升级流程,请从思科网站下载 Cisco IOS® XE .bin 文件,并将其放入活动交换机的闪存中。本文档不提供将该文件复制到交换机的操作步骤。
注意:请务必注意,此过程显示了升级运行较早3.x.x版本的3850交换机所需的命令。要升级运行16.x.x版本的3850交换机,请使用命令request platform software package install switch all file <file>或install add file <file> activate commit。有关其他详细信息,请参阅Cisco Catalyst 3850系列交换机发行版本注释。
在将 .bin 文件复制到单个交换机时,安装进程会自动将该文件复制到同一堆叠中的其他交换机。复制好文件后,输入如下命令:
3850-stack#software install file flash:cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin switch 1-2
注意:每个命令后面都有多个选项,但此示例仅显示执行基本升级的情况。
开始升级流程后,交换机会将 .bin 文件推送到对等的堆叠成员。
Preparing install operation ...
[2]: Copying software from active switch 1 to switch 2
当所有成员均收到 .bin 文件后,该文件会自动解压到闪存。
[1 2]: Starting install operation
[1 2]: Expanding bundle flash:
cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin
[1 2]: Copying package files
[1 2]: Package files copied
[1 2]: Finished expanding bundle flash:
cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin
[1 2]: Verifying and copying expanded package files to flash:
[1 2]: Verified and copied expanded package files to flash:
[1 2]: Starting compatibility checks
[1 2]: Finished compatibility checks
[1 2]: Starting application pre-installation processing
[1 2]: Finished application pre-installation processing
接下来,交换机会列出一份文件列表,其中包括已标记为需要移除并添加到 packages.conf 指针文件中的文件。
[1]: Old files list:
Removed cat3k_caa-base.SPA.03.03.00SE.pkg
Removed cat3k_caa-drivers.SPA.03.03.00SE.pkg
Removed cat3k_caa-infra.SPA.03.03.00SE.pkg
Removed cat3k_caa-iosd-universalk9.SPA.150-1.EZ.pkg
Removed cat3k_caa-platform.SPA.03.03.00SE.pkg
Removed cat3k_caa-wcm.SPA.10.1.100.0.pkg
[2]: Old files list:
Removed cat3k_caa-base.SPA.03.03.00SE.pkg
Removed cat3k_caa-drivers.SPA.03.03.00SE.pkg
Removed cat3k_caa-infra.SPA.03.03.00SE.pkg
Removed cat3k_caa-iosd-universalk9.SPA.150-1.EZ.pkg
Removed cat3k_caa-platform.SPA.03.03.00SE.pkg
Removed cat3k_caa-wcm.SPA.10.1.100.0.pkg
[1]: New files list:
Added cat3k_caa-base.SPA.03.03.01SE.pkg
Added cat3k_caa-drivers.SPA.03.03.01SE.pkg
Added cat3k_caa-infra.SPA.03.03.01SE.pkg
Added cat3k_caa-iosd-universalk9.SPA.150-1.EZ1.pkg
Added cat3k_caa-platform.SPA.03.03.01SE.pkg
Added cat3k_caa-wcm.SPA.10.1.110.0.pkg
[2]: New files list:
Added cat3k_caa-base.SPA.03.03.01SE.pkg
Added cat3k_caa-drivers.SPA.03.03.01SE.pkg
Added cat3k_caa-infra.SPA.03.03.01SE.pkg
Added cat3k_caa-iosd-universalk9.SPA.150-1.EZ1.pkg
Added cat3k_caa-platform.SPA.03.03.01SE.pkg
Added cat3k_caa-wcm.SPA.10.1.110.0.pkg
最后,交换机将更新并提交 packges.conf 文件。
[1 2]: Creating pending provisioning file
[1 2]: Finished installing software. New software will load on reboot.
[1 2]: Committing provisioning file
[1 2]: Do you want to proceed with reload? [yes/no]: yes
重新加载交换机,确认升级流程是否正确完成。
3850-stack#show ver | i INSTALL
1 32 WS-C3850-24P 03.03.01SE cat3k_caa-universalk9 INSTALL
* 2 56 WS-C3850-48T 03.03.01SE cat3k_caa-universalk9 INSTALL
升级完成后,旧版本的残留文件会保留在闪存中。要清理残留文件,请输入 命令,而无需手动删除这些文件。software clean
这会清除交换机不再需要的文件。
注意:此命令还会删除用于安装新 Cisco IOS 软件的 .bin 文件。请注意,.bin 文件在解压后便已完成作用,您可以放心删除。
下面两部分提供了执行 命令前后闪存显示内容的示例。software clean
3850-stack#show flash
-#- --length-- ---------date/time----------- -----------------------path-----------------------
2 2097152 Feb 16 2014 11:38:46.0 +00:00 nvram_config
4 257016048 Jan 28 2014 17:22:12.0 +00:00 cat3k_caa-universalk9.SPA.03.03.00.SE.150-1.EZ.bin
5 4096 Jan 28 2014 17:25:50.0 +00:00 mnt
6 4096 Jan 28 2014 17:25:50.0 +00:00 mnt/images
7 4096 Jan 28 2014 17:25:52.0 +00:00 mnt/images/ap.bak
8 40 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap1g2.md5
9 11591680 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap1g2
10 40 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap3g1.md5
11 10444800 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap3g1
12 40 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap3g2.md5
13 13568000 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap3g2
14 40 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/c1140.md5
15 10291200 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/c1140
16 11 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/version.info
17 1214 Jan 28 2014 17:25:10.0 +00:00 packages.conf.00-
18 79112096 Jan 28 2014 17:25:06.0 +00:00 cat3k_caa-base.SPA.03.03.00SE.pkg
19 6474428 Jan 28 2014 17:25:06.0 +00:00 cat3k_caa-drivers.SPA.03.03.00SE.pkg
20 34501468 Jan 28 2014 17:25:06.0 +00:00 cat3k_caa-infra.SPA.03.03.00SE.pkg
21 1248 Feb 16 2014 11:27:51.0 +00:00 packages.conf
22 34763952 Jan 28 2014 17:25:06.0 +00:00 cat3k_caa-iosd-universalk9.SPA.150-1.EZ.pkg
23 796 Feb 19 2014 11:43:13.0 +00:00 vlan.dat
24 24992476 Jan 28 2014 17:25:06.0 +00:00 cat3k_caa-platform.SPA.03.03.00SE.pkg
25 77167308 Jan 28 2014 17:25:06.0 +00:00 cat3k_caa-wcm.SPA.10.1.100.0.pkg
26 1224 Jan 28 2014 16:39:58.0 +00:00 packages.conf.01-
27 6571 Dec 20 2013 08:56:32.0 +00:00 BLANK_CONFIG.cfg
28 257193048 Feb 16 2014 11:19:44.0 +00:00 cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin
30 79113792 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-base.SPA.03.03.01SE.pkg
31 74409080 Jan 28 2014 16:39:54.0 +00:00 cat3k_caa-base.SPA.03.02.01.SE.pkg
32 2775728 Jan 28 2014 16:39:54.0 +00:00 cat3k_caa-drivers.SPA.03.02.01.SE.pkg
33 6476476 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-drivers.SPA.03.03.01SE.pkg
34 32478052 Jan 28 2014 16:39:54.0 +00:00 cat3k_caa-infra.SPA.03.02.01.SE.pkg
35 30389028 Jan 28 2014 16:39:54.0 +00:00 cat3k_caa-iosd-universalk9.SPA.150-1.EX1.pkg
36 18313952 Jan 28 2014 16:39:54.0 +00:00 cat3k_caa-platform.SPA.03.02.01.SE.pkg
37 63402700 Jan 28 2014 16:39:54.0 +00:00 cat3k_caa-wcm.SPA.10.0.101.0.pkg
38 34503664 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-infra.SPA.03.03.01SE.pkg
39 34788684 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-iosd-universalk9.SPA.150-1.EZ1.pkg
40 25009040 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-platform.SPA.03.03.01SE.pkg
41 77296448 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-wcm.SPA.10.1.110.0.pkg
237428736 bytes available (1302147072 bytes used)
3850-stack#software clean
Preparing clean operation ...
[1 2]: Cleaning up unnecessary package files
[1 2]: No path specified, will use booted path flash:packages.conf
[1 2]: Cleaning flash:
[1]: Preparing packages list to delete ...
In use files, will not delete:
cat3k_caa-base.SPA.03.03.01SE.pkg
cat3k_caa-drivers.SPA.03.03.01SE.pkg
cat3k_caa-infra.SPA.03.03.01SE.pkg
cat3k_caa-iosd-universalk9.SPA.150-1.EZ1.pkg
cat3k_caa-platform.SPA.03.03.01SE.pkg
cat3k_caa-wcm.SPA.10.1.110.0.pkg
packages.conf
[2]: Preparing packages list to delete ...
In use files, will not delete:
cat3k_caa-base.SPA.03.03.01SE.pkg
cat3k_caa-drivers.SPA.03.03.01SE.pkg
cat3k_caa-infra.SPA.03.03.01SE.pkg
cat3k_caa-iosd-universalk9.SPA.150-1.EZ1.pkg
cat3k_caa-platform.SPA.03.03.01SE.pkg
cat3k_caa-wcm.SPA.10.1.110.0.pkg
packages.conf
[1]: Files that will be deleted:
cat3k_caa-base.SPA.03.02.01.SE.pkg
cat3k_caa-base.SPA.03.03.00SE.pkg
cat3k_caa-drivers.SPA.03.02.01.SE.pkg
cat3k_caa-drivers.SPA.03.03.00SE.pkg
cat3k_caa-infra.SPA.03.02.01.SE.pkg
cat3k_caa-infra.SPA.03.03.00SE.pkg
cat3k_caa-iosd-universalk9.SPA.150-1.EX1.pkg
cat3k_caa-iosd-universalk9.SPA.150-1.EZ.pkg
cat3k_caa-platform.SPA.03.02.01.SE.pkg
cat3k_caa-platform.SPA.03.03.00SE.pkg
cat3k_caa-universalk9.SPA.03.03.00.SE.150-1.EZ.bin
cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin
cat3k_caa-wcm.SPA.10.0.101.0.pkg
cat3k_caa-wcm.SPA.10.1.100.0.pkg
packages.conf.00-
packages.conf.01-
[2]: Files that will be deleted:
cat3k_caa-base.SPA.03.02.01.SE.pkg
cat3k_caa-base.SPA.03.03.00SE.pkg
cat3k_caa-drivers.SPA.03.02.01.SE.pkg
cat3k_caa-drivers.SPA.03.03.00SE.pkg
cat3k_caa-infra.SPA.03.02.01.SE.pkg
cat3k_caa-infra.SPA.03.03.00SE.pkg
cat3k_caa-iosd-universalk9.SPA.150-1.EX1.pkg
cat3k_caa-iosd-universalk9.SPA.150-1.EZ.pkg
cat3k_caa-platform.SPA.03.02.01.SE.pkg
cat3k_caa-platform.SPA.03.03.00SE.pkg
cat3k_caa-universalk9.SPA.03.03.00.SE.150-1.EZ.bin
cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin
cat3k_caa-wcm.SPA.10.0.101.0.pkg
cat3k_caa-wcm.SPA.10.1.100.0.pkg
packages.conf.00-
packages.conf.01-
[1 2]: Do you want to proceed with the deletion? [yes/no]: yes
[1 2]: Clean up completed
下面显示的是执行闪存清理后, 命令的输出内容:show flash
3850-stack#show flash
-#- --length-- ---------date/time----------- -------------------path--------------------
2 2097152 Feb 16 2014 11:38:46.0 +00:00 nvram_config
4 4096 Jan 28 2014 17:25:50.0 +00:00 mnt
5 4096 Jan 28 2014 17:25:50.0 +00:00 mnt/images
6 4096 Jan 28 2014 17:25:52.0 +00:00 mnt/images/ap.bak
7 40 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap1g2.md5
8 11591680 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap1g2
9 40 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap3g1.md5
10 10444800 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap3g1
11 40 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap3g2.md5
12 13568000 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/ap3g2
13 40 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/c1140.md5
14 10291200 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/c1140
15 11 Oct 03 2013 05:02:21.0 +00:00 mnt/images/ap.bak/version.info
16 1248 Feb 16 2014 11:27:51.0 +00:00 packages.conf
17 796 Feb 19 2014 11:43:13.0 +00:00 vlan.dat
18 6571 Dec 20 2013 08:56:32.0 +00:00 BLANK_CONFIG.cfg
20 79113792 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-base.SPA.03.03.01SE.pkg
21 6476476 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-drivers.SPA.03.03.01SE.pkg
22 34503664 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-infra.SPA.03.03.01SE.pkg
23 34788684 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-iosd-universalk9.SPA.150-1.EZ1.pkg
24 25009040 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-platform.SPA.03.03.01SE.pkg
25 77296448 Feb 16 2014 11:27:46.0 +00:00 cat3k_caa-wcm.SPA.10.1.110.0.pkg
1231515648 bytes available (308060160 bytes used)
在现有 Catalyst 3850 系列交换机堆叠中引入新交换机的一种情况是,购买新交换机来扩展堆叠的可用端口数量。 要成功将新交换机添加到堆叠,您必须确保新交换机与现有堆叠运行的软件版本完全相同。对于 Cisco IOS XE 版本 3.3.1 以前的版本,确保版本匹配的唯一方法是在将新交换机引入堆叠之前完成新交换机的配置。
Catalyst 3850 系列交换机具有自动升级功能。此功能旨在通过自动调配来确保新添加的交换机能够获得与其他堆叠成员一致的 Cisco IOS XE 版本。
注意:自动升级功能默认禁用,而且不适用于捆绑包模式。
要使用自动升级功能,请将 命令添加到现有堆叠的配置中。software auto-upgrade enable
这样一来,任何新添加的堆叠成员都将能实现自动升级。
当新交换机加入堆叠并启动后,系统会指示堆叠中存在版本不一致问题,因此新成员未完全加入堆叠。
要在新交换机尝试加入堆叠时查看系统日志,请注意自动建议功能发出的提示消息,该提示消息显示新添加的交换机运行了不同的软件版本和模式。
注意:在此示例中,新交换机在捆绑包模式下运行 Cisco IOS XE 版本 3.2.2。
%STACKMGR-1-STACK_LINK_CHANGE: STANDBY: 1 stack-mgr:
Stack port 2 on switch 1 is up (3850-Stack-1)
%STACKMGR-1-STACK_LINK_CHANGE: 2 stack-mgr:
Stack port 1 on switch 2 is up
%STACKMGR-6-SWITCH_ADDED: 2 stack-mgr:
Switch 3 has been added to the stack.
%STACKMGR-6-SWITCH_ADDED: STANDBY:1 stack-mgr:
Switch 3 has been added to the stack. (3850-Stack-1)
%INSTALLER-6-AUTO_ADVISE_SW_INITIATED: 2 installer:
Auto advise initiated for switch 3
%INSTALLER-6-AUTO_ADVISE_SW: 2 installer:
Switch 3 running bundled software has been added
%INSTALLER-6-AUTO_ADVISE_SW: 2 installer:
to the stack that is running installed software.
%INSTALLER-6-AUTO_ADVISE_SW: 2 installer:
The 'software auto-upgrade' command can be used to
%INSTALLER-6-AUTO_ADVISE_SW: 2 installer:
convert switch 3 to the installed running mode by
%INSTALLER-6-AUTO_ADVISE_SW: 2 installer:
installing its running software.
当新加入的成员完全启动后,系统会检测到如下不一致:
3850-Stack#show switch
Switch/Stack Mac Address : 0c27.24cf.ab80 - Local Mac Address
Mac persistency wait time: Indefinite
H/W Current
Switch# Role Mac Address Priority Version State
------------------------------------------------------------
*1 Active 0c27.24cf.ab80 14 B0 Ready
2 Standby f41f.c238.a800 13 B0 Ready
3 Member b4e9.b0d3.6600 12 0 V-Mismatch
在全局配置模式下,输入 命令。software auto-upgrade enable
这样一来,所有新加入该堆叠的交换机都将启用自动升级功能。
3850-Stack(config)#software auto-upgrade enable
3850-Stack(config)#end
只需重新加载新添加的交换机;而无需重新加载整个堆叠。在上面的示例中,新添加的交换机是 switch 3,所以您需要输入 reload slot 3 命令。
提示:这些命令中的 slot 指代堆叠中的交换机 (slot 1 = switch 1)。
3850-Stack#reload slot 3
Proceed with reload? [confirm]
%STACKMGR-1-RELOAD_REQUEST: 1 stack-mgr:
Received reload request for switch 3, reason Reload Slot Command
%STACKMGR-1-STACK_LINK_CHANGE: 1 stack-mgr:
Stack port 2 on switch 1 is down
%STACKMGR-6-SWITCH_REMOVED: 1 stack-mgr:
Switch 3 has been removed from the stack.
%STACKMGR-1-STACK_LINK_CHANGE: STANDBY:
2 stack-mgr: Stack port 1 on switch 2 is down (3850-Stack-2)
Starting SWITCH-DELETE sequence, switch 3
SWITCH-DELETE sequence complete, switch 3
%STACKMGR-6-SWITCH_REMOVED: STANDBY:2 stack-mgr:
Switch 3 has been removed from the stack. (3850-Stack-2)
Starting SWITCH-DELETE sequence, switch 3 (3850-Stack-2)
SWITCH-DELETE sequence complete, switch 3 (3850-Stack-2)
交换机会立即在后台重新加载。然后,您会看到如下消息:
%STACKMGR-1-STACK_LINK_CHANGE: 1 stack-mgr:
Stack port 2 on switch 1 is up
3850-Stack#
%STACKMGR-1-STACK_LINK_CHANGE: STANDBY:2 stack-mgr:
Stack port 1 on switch 2 is up (3850-Stack-2)
3850-Stack#
%STACKMGR-6-SWITCH_ADDED: 1 stack-mgr:
Switch 3 has been added to the stack.
%STACKMGR-6-SWITCH_ADDED: STANDBY:2 stack-mgr:
Switch 3 has been added to the stack. (3850-Stack-2)
在重新加载后,交换机从捆绑包模式切换到安装模式:
%INSTALLER-6-AUTO_UPGRADE_SW_INITIATED: 1 installer:
Auto upgrade initiated for switch 3
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
Converting switch 3 to installed mode by
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
installing its running software
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
Setting the boot var on switch 3
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
Finished installing the running software on switch 3
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
Reloading switch 3 to boot in installed mode
%STACKMGR-1-RELOAD_REQUEST: 1 stack-mgr:
Received reload request for switch 3, reason Auto upgrade
%STACKMGR-1-STACK_LINK_CHANGE: 1 stack-mgr:
Stack port 2 on switch 1 is down
%STACKMGR-6-SWITCH_REMOVED: 1 stack-mgr:
Switch 3 has been r
3850-Stack#emoved from the stack.
%STACKMGR-1-STACK_LINK_CHANGE: STANDBY:2 stack-mgr:
Stack port 1 on switch 2 is down (3850-Stack-2)
Starting SWITCH-DELETE sequence, switch 3
SWITCH-DELETE sequence complete, switch 3
%STACKMGR-6-SWITCH_REMOVED: STANDBY:2 stack-mgr:
Switch 3 has been removed from the stack. (3850-Stack-2)
3850-Stack#
Starting SWITCH-DELETE sequence, switch 3 (3850-Stack-2)
SWITCH-DELETE sequence complete, switch 3 (3850-Stack-2)
完成重新引导后,升级将继续进行:
%INSTALLER-6-AUTO_UPGRADE_SW_INITIATED: 1 installer:
Auto upgrade initiated for switch 3
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
Searching stack for software to upgrade switch 3
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
Found donor switch 1 to auto upgrade switch 3
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
Upgrading switch 3 with software from switch 1
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
Finished installing software on switch 3
%INSTALLER-6-AUTO_UPGRADE_SW: 1 installer:
Reloading switch 3 to complete the auto upgrade
%STACKMGR-1-RELOAD_REQUEST: 1 stack-mgr:
Received reload request for switch 3, reason Auto upgrade
%STACKMGR-1-STACK_LINK_CHANGE: 1 stack-mgr:
Stack port 2 on switch 1 is down
%STACKMGR-6-SWITCH_REMOVED: 1 stack-mgr:
Switch 3 has been removed from the stack.
%STACKMGR-1-STACK_LINK_CHANGE: STANDBY:2 stack-mgr:
Stack port
3850-Stack#t 1 on switch 2 is down (3850-Stack-2)
Starting SWITCH-DELETE sequence, switch 3
SWITCH-DELETE sequence complete, switch 3
%STACKMGR-6-SWITCH_REMOVED: STANDBY:2 stack-mgr:
Switch 3 has been removed from the stack. (3850-Stack-2)
交换机会再次自动执行重新引导。当交换机启动后,即会使用正确的 Cisco IOS XE 版本和软件模式成功加入堆叠。
%STACKMGR-6-SWITCH_ADDED: 1 stack-mgr:
Switch 3 has been added to the stack.
%STACKMGR-6-SWITCH_ADDED: STANDBY:2 stack-mgr:
Switch 3 has been added to the stack. (3850-Stack-2)
%STACKMGR-6-SWITCH_READY: STANDBY:2 stack-mgr:
Switch 3 is ready. (3850-Stack-2)
%STACKMGR-6-SWITCH_READY: 1 stack-mgr: Switch 3 is ready.
Starting SWITCH-ADD sequence, switch 3
%NGWC_USB_CONSOLE-6-CONFIG_ENABLE: Switch 3:
Console media-type changed to default
Starting SWITCH-ADD sequence, switch 3 (3850-Stack-2)
SWITCH-ADD sequence complete, switch 3 (3850-Stack-2)
SWITCH-ADD sequence complete, switch 3
您可以使用 show switch 和 show version 命令来验证升级流程是否成功完成:
3850-Stack#show switch
Switch/Stack Mac Address : 0c27.24cf.ab80 - Local Mac Address
Mac persistency wait time: Indefinite
H/W Current
Switch# Role Mac Address Priority Version State
------------------------------------------------------------
*1 Active 0c27.24cf.ab80 14 B0 Ready
2 Standby f41f.c238.a800 13 B0 Ready
3 Member b4e9.b0d3.6600 12 B0 Ready
3850-Stack#show version
Switch Ports Model SW Version SW Image Mode
------ ----- ----- ---------- ---------- ----
* 1 56 WS-C3850-48P 03.03.01SE cat3k_caa-universalk9 INSTALL
2 56 WS-C3850-48P 03.03.01SE cat3k_caa-universalk9 INSTALL
3 56 WS-C3850-48P 03.03.01SE cat3k_caa-universalk9 INSTALL
本部分介绍 3850 系列交换机启动失败(例如启动映像损坏、packages.conf 文件损坏或文件丢失)时可能有效的恢复方法。
注意:在继续阅读下面的内容之前,请确保您已掌握与两种可能使用的启动模式(安装模式和捆绑包模式)相关的知识。
本节介绍用于对引导失败的 3850 系列交换机进行恢复的两种标准方法。
3850 系列交换机的前部有一个用于访问控制台的 USB 端口。此 USB 端口也可用于对闪存驱动器进行映像备份和恢复。
如果因映像或 .conf 文件损坏而卡在 switch: 提示符处,请使用 USB 驱动器中存储的文件进行启动,或者将映像从 USB 驱动器复制到内部闪存。要从引导失败状态下恢复,请执行以下步骤:
switch: dir usbflash0:
Directory of usbflash0:/
74 -rw- 223734376 cat3k_caa-universalk9.SPA.03.03.00.SE.150-1.EZ.bin
switch: boot usbflash0:cat3k_caa-universalk9.SPA.03.03.00.SE.150-1.EZ.bin
注意:此过程将在捆绑包模式下启动交换机。
提示:您也可以将 .bin 文件从 usbflash0: 复制到 flash:,然后将 boot 语句指向内部闪存。
在一些情况下,packages.conf 可能会调用已从闪存中删除的文件。虽然您可以使用 switch: 提示符文件手动执行映像启动,但是交换机在重新加载后仍会调用 packages.conf 文件,并导致启动失败。 如果遇到这种情况,思科建议您备份当前 packages.conf 文件,并对其进行重命名或将其删除。必须执行此操作,因为如果 .conf 文件已经存在,下一步就会失败。
提取 .bin 文件后,系统会创建新的 packages.conf 文件。要从 packages.conf 文件损坏的状况下恢复,请执行以下步骤:
Switch#dir flash:
Directory of flash:/
15500 -rwx 1243 Aug 1 2013 07:04:02 +00:00 packages.conf
Switch#cp flash:packages.conf flash:packages.conf.badop
Destination filename [packages.conf.bad]?
Copy in progress...C
1243 bytes copied in 0.140 secs (8879 bytes/sec)
Switch#dir flash:
Directory of flash:/
15500 -rwx 1243 Aug 1 2013 07:04:02 +00:00 packages.conf
15502 -rw- 1243 Aug 1 2013 11:53:51 +00:00 packages.conf.bad
Switch#del flash:packages.conf
Delete filename [packages.conf]?
Delete flash:/packages.conf? [confirm]
Switch#software expand running switch 1 to flash:
Preparing expand operation ...
[1]: Expanding the running bundle
[1]: Copying package files
[1]: Package files copied
[1]: Finished expanding the running bundle
Switch#show boot
---------------------------
Switch 1
---------------------------
Current Boot Variables:
BOOT variable does not exist
Boot Variables on next reload:
BOOT variable = flash:packages.conf;
Manual Boot = no
Enable Break = no
Switch#reload
Reload command is being issued on Active unit, this will reload the whole stack
Proceed with reload? [confirm]
如果上述恢复方法均无效,可以使用 3850 系列交换机的 trap door 方法来恢复系统。要使用此方法,必须将终端连接至运行 TFTP 服务器的交换机的管理端口。然后,您需要从 CCO 下载有效的映像文件,并将其保存到 TFTP 服务器的根目录下。
交换机的启动有可能会卡在 switch: 提示符处。但如果您陷入启动循环,请使用交换机前部的 Mode 按钮跳出循环:按住该按钮大约 10 秒,交换机即会跳出循环,并停在 switch: 提示符处。
要进行紧急恢复,请执行以下步骤:
switch: set IP_ADDR 192.0.2.123/255.255.255.0
switch: set DEFAULT_ROUTER 192.0.2.1
switch: ping 192.0.2.1
ping 192.0.2.1 with 32 bytes of data ...
Host 192.0.2.1 is alive.
switch: dir sda9:
Directory of sda9:/
2 drwx 1024 .
2 drwx 1024 ..
11 -rwx 18958824 cat3k_caa-recovery.bin
36903936 bytes available (20866048 bytes used)
switch: emergency-install tftp://192.0.2.1/cat3k_caa-universalk9.
SPA.03.03.00.SE.150-1.EZ.bin
The bootflash will be erased during install operation, continue (y/n)?Y
Starting emergency recovery (tftp://192.0.2.1/cat3k_caa-universalk9.
SPA.03.02.02.SE.150-1.EX2.bin)...
Reading full image into memory......................done
Nova Bundle Image
--------------------------------------
Kernel Address : 0x6042f5d8
Kernel Size : 0x317ccc/3243212
Initramfs Address : 0x607472a4
Initramfs Size : 0xdc6546/14443846
Compression Format: .mzip
Bootable image at @ ram:0x6042f5d8
Bootable image segment 0 address range [0x81100000, 0x81b80000]
is in range [0x80180000, 0x90000000].
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@
File "sda9:cat3k_caa-recovery.bin" uncompressed and installed,
entry point: 0x811060f0
Loading Linux kernel with entry point 0x811060f0 ...
Bootloader: Done loading app on core_mask: 0xf
### Launching Linux Kernel (flags = 0x5)
Initiating Emergency Installation of bundle tftp://192.0.2.1/
cat3k_caa-universalk9.SPA.03.03.00.SE.150-1.EZ.bin
Downloading bundle tftp://192.0.2.1/ cat3k_caa-universalk9.
SPA.03.03.00.SE.150-1.EZ.bin...
Validating bundle tftp://192.0.2.1/ cat3k_caa-universalk9.
SPA.03.03.00.SE.150-1.EZ.bin...
Installing bundle tftp://192.0.2.1/ cat3k_caa-universalk9.
SPA.03.03.00.SE.150-1.EZ.bin...
Verifying bundle tftp://192.0.2.1/ cat3k_caa-universalk9.
SPA.03.03.00.SE.150-1.EZ.bin...
Package cat3k_caa-base.SPA.03.03.00.SE.pkg is Digitally Signed
Package cat3k_caa-drivers.SPA.03.03.00.SE.pkg is Digitally Signed
Package cat3k_caa-infra.SPA.03.03.00.SE.pkg is Digitally Signed
Package cat3k_caa-iosd-universalk9.SPA.150-1.EX2.pkg is Digitally Signed
Package cat3k_caa-platform.SPA.03.03.00.SE.pkg is Digitally Signed
Package cat3k_caa-wcm.SPA.10.0.111.0.pkg is Digitally Signed
Preparing flash...
Syncing device...
Emergency Install successful... Rebooting
Restarting system.
版本 | 发布日期 | 备注 |
---|---|---|
4.0 |
08-Oct-2024 |
已更新的参与者和格式。 |
3.0 |
10-Aug-2023 |
重新认证 |
1.0 |
06-Mar-2014 |
初始版本 |