在Catalyst 9800 Series无线局域网控制器的无中断软件升级
目录
3.
AP重新加载和答辩
简介
本文描述如何执行在Catalyst 9800 series无线局域网控制器的一个N+1无中断软件升级。
贡献用阿南德Shandilya， Cisco TAC工程师。
先决条件
要求
Cisco 建议您了解以下主题：
-
Catalyst 9800无线局域网控制器和AP (IOS和ClickOS)平台
- Catalyst 9800无线局域网控制器软件功能集
使用的组件
在本文提供的信息根据以下软件和硬件组件。
- Catalyst C9800-40和C9800-L-F-K9无线局域网控制器
- 点击OS和IOS AP
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。如果您使用的是真实网络，请确保您已经了解所有命令的潜在影响。
背景信息
现有CAPWAP实施要求WLC和AP在同一个软件版本。所以， WLC升级由导致一个不可避免的网络中断的AP升级跟随。没有安排的停机时间，使用现有实施，升级WLC是不可能的。
打不到的升级有效利用N+1高可用性的概念使用一备用的WLC (已经升级对目标版本)升级CAPWAP基础设施。使用滚动的AP升级功能， AP在交错排列方式然后升级，避免网络中断通过立即不让所有AP升级。这保证客户端由相邻的AP服务，当一个AP进行升级进程时。
工作流
- 升级备用的WLC对目标版本。
- 设立在制作WLC和备用一个之间的一个移动性通道。
- 开始在使用install add的制作控制器的升级file命令。
- PRE下载AP。
- 移动AP向目的地控制器(备用的WLC)。使用滚动的AP升级算法， AP在交错排列方式升级。
- 一旦所有AP移动向在多迭代的备用的WLC激活在制作WLC的目标镜像。
- 新的镜像的制作WLC重新加载能生效。
- 移动所有AP回到制作控制器。
滚动的AP升级算法
在三个阶段的算法工作。
1.候选AP系选择
首先，一套候选根据附近的AP信息选择。滚动的AP升级算法选择在每迭代将升级的配置的百分比AP，当维护RF覆盖时
对于服务的无线客户端。维护覆盖是重要并且，优先于选择AP所需数量。所以，
为P = 25%，迭代预计的数量所有AP的能升级| 6
为P = 15%，迭代预计的数量所有AP的能升级| 12
为P = 5%，迭代预计的数量所有AP的能升级| 22
2.客户端指点
不是在候选列表在重新启动候选之前AP候选的AP的客户端被操纵对AP。如果客户端在候选AP仍然仍然存在，他们将发送解除验证帧，并且AP将重新加载与新的镜像。
3. AP重新加载和答辩
张贴客户端指点阶段， AP重新加载与新的镜像。
这时， 3分钟计时器开始为了AP能加入上一步。当此计时器超时时，所有候选AP为他们连接对的WLC被检查并且被标记(自已或对等体)。
如果至少90%候选AP加入上一步，迭代推断。否则， 3分钟窗口被延伸，并且检查还被重复两倍，直到计数点击至少90%。
在第3个尝试结束时，迭代无论如何推断，并且下迭代启动。因此，每迭代可能持续在至多10分钟。
限制
- 在步骤的其余开始前，无委托人服务AP类似那个的工作在监视器，嗅探器模式等等在一个升级去。
- 滚动AP升级不支持Mesh AP。如果部署有mesh AP，升级在一个被射击的他们和在所有迭代结束时。
- 16.10仅有一个CLI选项配置。
- 在GUI显示选项启用打不到的升级前， AP需要注册。
- 打不到的升级不由在套件模式的控制器运行支持。
拓扑
配置
从GUI
1. 设立在控制器之间的移动性通道。
2. 开始在控制器的升级。启用打不到的升级选项。随意地，在升级以后的enable (event) parent控制器的Fallback，以便回到parent控制器的AP移动(没有交换和重置)，在新的镜像的激活和重新载入后。
3. 一旦所有阶段完成， WLC提示输入重新加载。
从CLI
1. 设立在控制器之间的移动性通道。
9800-40(config)#wireless mobility group member mac-address d478.9b3c.4ecb ip 10.106.36.78 public-ip 10.106.36.78 group default 9800-L(config)#wireless mobility group member mac-address d4e8.80b2.dc8b ip 10.106.36.110 public-ip 10.106.36.110 group default
2. 开始在控制器的升级。
9800-40#install add file flash:C9800-40-universalk9_wlc.17.01.01s.SPA.bin
一旦安装是成功的，新的镜像应该在非活动状态。
9800-40#show install summary [ Chassis 1 ] Installed Package(s) Information: State (St): I - Inactive, U - Activated & Uncommitted, C - Activated & Committed, D - Deactivated & Uncommitted -------------------------------------------------------------------------------- Type St Filename/Version -------------------------------------------------------------------------------- IMG I 17.1.1s.0.351 IMG C 16.12.2s.0.47 -------------------------------------------------------------------------------- Auto abort timer: inactive --------------------------------------------------------------------------------
3. 启动在AP的PRE下载装载新的镜像作为在AP的备份。
9800-40#ap image predownload
为了检查PRE下载状况，请使用此命令。
9800-40#show ap image
Total number of APs: 5
Number of APs
Initiated : 0
Predownloading : 1
Completed predownloading : 3
Not Supported : 0
Failed to Predownload : 0
Predownload in progress : Yes
AP Name Primary Image Backup Image Predownload Status Predownload Version Next Retry Time Retry Count
-------------------------------------------------------------------------------------------------------------------------------------------------------
AP3800 16.12.2.132 17.1.1.29 Complete 17.1.1.29 0 0
3800-2 16.12.2.132 17.1.1.29 Complete 17.1.1.29 0 0
4800-1 16.12.2.132 17.1.1.29 Complete 17.1.1.29 0 0
3702I-2 16.12.2.132 0.0.0.0 Predownloading 17.1.1.29 0 0
4. 随意地，如果一个人要求配置每迭代将升级的AP的百分比，可以使用此命令。默认值是15。
9800-40(config)#ap upgrade staggered ? 15 15 percent APs per iteration 25 25 percent APs per iteration 5 5 percent APs per iteration one-shot All APs in one shot, no staggering
5. 一旦PRE下载完成在所有AP，您必须移动AP向在更新代码运行的备用的控制器。
9800-40#ap image upgrade destination 9800-L 10.106.36.78 fallback
此命令将移动AP向与交换的指定的目的地WLC和reset命令。交换命令互换AP镜像，以便目标代码是AP的被标记的主要的镜像，而reset命令重新加载AP。假设，目的地WLC在和一样AP备份镜像的版本。
随意地，一能使用fallback关键字在升级选项以后启用Fallback，以便AP移动回到parent控制器(没有交换和重置)，在来源控制器的新的镜像和重新载入的后激活。
6. 一旦所有AP移动向目的地控制器，请激活在来源WLC的镜像。
在目的地WLC，如果所有AP顺利地，移动请验证。
9800-L#show ap upgrade AP upgrade is complete, fallback awaited Fallback type: Fallback only From version: 16.12.2.132 To version: 17.1.1.29 Started at: 04/13/2020 02:32:09 UTC Configured percentage: N/A Percentage complete: 100 End time: 04/13/2020 02:56:09 UTC Progress Report --------------- Iterations ---------- Iteration Start time End time AP count ------------------------------------------------------------------------------------------------ 0 04/13/2020 02:32:09 UTC 04/13/2020 02:32:09 UTC 1 1 04/13/2020 02:32:09 UTC 04/13/2020 02:38:09 UTC 1 2 04/13/2020 02:38:09 UTC 04/13/2020 02:44:09 UTC 1 3 04/13/2020 02:44:09 UTC 04/13/2020 02:47:09 UTC 1 4 04/13/2020 02:47:09 UTC 04/13/2020 02:56:09 UTC 1 Upgraded -------- Number of APs: 5 AP Name Radio MAC Iteration Status Site ---------------------------------------------------------------------------------------------------- AP3800 1880.9021.e0e0 0 Joined default-site-tag 3800-2 1880.9021.e280 1 Joined default-site-tag 9130-1 04eb.409f.9760 2 Joined default-site-tag 4800-1 dc8c.3746.b0e0 3 Joined default-site-tag 3702I-2 fc5b.39f1.c7e0 4 Joined Unknown In Progress ----------- Number of APs: 0 AP Name Radio MAC ------------------------------------------------- Remaining --------- Number of APs: 0 AP Name Radio MAC ------------------------------------------------- APs not handled by Rolling AP Upgrade ------------------------------------- AP Name Radio MAC Status Reason for not handling by Rolling AP Upgrade ----------------------------------------------------------------------------------------------------------------------
在来源WLC，请激活镜像。 键入是对所有提示符。一旦安装完成，控制器继续对重新加载。
9800-40#install activate install_add_activate_commit: Activating PACKAGE Following packages shall be activated: /bootflash/C9800-L-rpboot.17.01.01s.SPA.pkg /bootflash/C9800-L-mono-universalk9_wlc.17.01.01s.SPA.pkg /bootflash/C9800-L-hw-programmables.17.01.01s.SPA.pkg This operation may require a reload of the system. Do you want to proceed? [y/n]y --- Starting Activate --- Performing Activate on all members [1] Activate package(s) on chassis 1 [1] Finished Activate on chassis 1 Checking status of Activate on [1] Activate: Passed on [1] Finished Activate
POST重新加载，做镜像用此命令。
9800-40#install commit
7. 如果一未启用Fallback，在升级选项(按照Step5所述)后使用此on命令目的地WLC移动上一步AP向来源WLC，来源WLC一次升级对最新的代码。
在来源WLC
9800-40#show version | i Version Cisco IOS XE Software, Version 17.01.01s Cisco IOS Software [Amsterdam], C9800 Software (C9800_IOSXE-K9), Version 17.1.1s, RELEASE SOFTWARE (fc4)
在目的地WLC
9800-L#ap image move destination 9800-40 10.106.36.110
此命令移动AP回到来源WLC，不用交换和reset命令。
8. 所有AP应该加入上一步来源WLC，并且最新的镜像应该在一做的状态。
9800-40#show install summary
[ Chassis 1/R0 ] Installed Package(s) Information:
State (St): I - Inactive, U - Activated & Uncommitted,
C - Activated & Committed, D - Deactivated & Uncommitted
--------------------------------------------------------------------------------
Type St Filename/Version
--------------------------------------------------------------------------------
IMG C 17.1.1s.0.351
--------------------------------------------------------------------------------
Auto abort timer: inactive
--------------------------------------------------------------------------------
9800-40#show ap summary
Number of APs: 5
AP Name Slots AP Model Ethernet MAC Radio MAC Location Country IP Address State
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
9130-1 2 9130AXI 04eb.409e.2620 04eb.409f.9760 default location IN 10.106.36.145 Registered
AP3800 2 3802I a023.9fae.f48a 1880.9021.e0e0 default location IN 10.106.37.13 Registered
3800-2 2 3802I a023.9fae.f4a4 1880.9021.e280 default location IN 10.106.36.187 Registered
4800-1 3 4800 dc8c.370e.b2da dc8c.3746.b0e0 default location IN 10.106.36.130 Registered
3702I-2 2 3702I fc5b.39d9.f4b4 fc5b.39f1.c7e0 default location IN 10.106.38.219 Registered
验证
- 保证WLC在Install模式运行。套件模式不支持打不到的升级。
9800-40#show version | i mode Installation mode is INSTALL
- 在控制器之间的移动性通道应该是UP。
9800-40#show wireless mobility summary Mobility Summary Wireless Management VLAN: 36 Wireless Management IP Address: 10.106.36.110 Wireless Management IPv6 Address: Mobility Control Message DSCP Value: 48 Mobility Keepalive Interval/Count: 10/3 Mobility Group Name: default Mobility Multicast Ipv4 address: 0.0.0.0 Mobility Multicast Ipv6 address: :: Mobility MAC Address: d4e8.80b2.dc8b Mobility Domain Identifier: 0x34ac Controllers configured in the Mobility Domain: IP Public Ip MAC Address Group Name Multicast IPv4 Multicast IPv6 Status PMTU --------------------------------------------------------------------------------------------------------------------- 10.106.36.110 N/A d4e8.80b2.dc8b default 0.0.0.0 :: N/A N/A 10.106.36.78 10.106.36.78 d478.9b3c.4ecb default 0.0.0.0 :: Up 1385
- 为了监控AP升级请使用这些命令。
在来源WLC
9800-40#show ap upgrade AP upgrade is in progress Fallback type: Fallback only From version: 16.12.2.132 To version: 17.1.1.29 Started at: 04/12/2020 21:02:09 India Configured percentage: 15 Percentage complete: 80 Expected time of completion: 04/12/2020 22:22:09 India Progress Report --------------- Iterations ---------- Iteration Start time End time AP count ------------------------------------------------------------------------------------------------ 0 04/12/2020 21:02:09 India 04/12/2020 21:02:09 India 1 1 04/12/2020 21:02:09 India 04/12/2020 21:08:09 India 1 2 04/12/2020 21:08:09 India 04/12/2020 21:14:09 India 1 3 04/12/2020 21:14:09 India 04/12/2020 21:17:09 India 1 4 04/12/2020 21:17:09 India ONGOING 1 Upgraded -------- Number of APs: 4 AP Name Radio MAC Iteration Status Site ---------------------------------------------------------------------------------------------------- AP3800 1880.9021.e0e0 0 Joined Member default-site-tag 3800-2 1880.9021.e280 1 Joined Member default-site-tag 9130-1 04eb.409f.9760 2 Joined Member default-site-tag 4800-1 dc8c.3746.b0e0 3 Joined Member default-site-tag In Progress ----------- Number of APs: 1 AP Name Radio MAC ------------------------------------------------- 3702I-2 fc5b.39f1.c7e0 Remaining --------- Number of APs: 0 AP Name Radio MAC ------------------------------------------------- APs not handled by Rolling AP Upgrade ------------------------------------- AP Name Radio MAC Status Reason for not handling by Rolling AP Upgrade ----------------------------------------------------------------------------------------------------------------------
在目的地WLC
9800-L#show ap upgrade AP upgrade is in progress Fallback type: Fallback only From version: 16.12.2.132 To version: 17.1.1.29 Started at: 04/13/2020 02:32:09 UTC Configured percentage: N/A Percentage complete: 80 Expected time of completion: 04/13/2020 03:52:09 UTC Progress Report --------------- Iterations ---------- Iteration Start time End time AP count ------------------------------------------------------------------------------------------------ 0 04/13/2020 02:32:09 UTC 04/13/2020 02:32:09 UTC 1 1 04/13/2020 02:32:09 UTC 04/13/2020 02:38:09 UTC 1 2 04/13/2020 02:38:09 UTC 04/13/2020 02:44:09 UTC 1 3 04/13/2020 02:44:09 UTC 04/13/2020 02:47:09 UTC 1 4 04/13/2020 02:47:09 UTC ONGOING 0 Upgraded -------- Number of APs: 4 AP Name Radio MAC Iteration Status Site ---------------------------------------------------------------------------------------------------- AP3800 1880.9021.e0e0 0 Joined default-site-tag 3800-2 1880.9021.e280 1 Joined default-site-tag 9130-1 04eb.409f.9760 2 Joined default-site-tag 4800-1 dc8c.3746.b0e0 3 Joined default-site-tag In Progress ----------- Number of APs: 1 AP Name Radio MAC ------------------------------------------------- 3702I-2 fc5b.39f1.c7e0 Remaining --------- Number of APs: 0 AP Name Radio MAC ------------------------------------------------- APs not handled by Rolling AP Upgrade ------------------------------------- AP Name Radio MAC Status Reason for not handling by Rolling AP Upgrade ----------------------------------------------------------------------------------------------------------------------
9800-L#show ap upgrade summary Report Name Start time ------------------------------------------------------------------------------------------ AP_upgrade_from_9800-40_13320202329 04/13/2020 02:32:09 UTC 9800-L#show ap upgrade name AP_upgrade_from_9800-40_13320202329 AP upgrade is in progress Fallback type: Fallback only From version: 16.12.2.132 To version: 17.1.1.29 Started at: 04/13/2020 02:32:09 UTC Configured percentage: N/A Percentage complete: 60 Expected time of completion: 04/13/2020 03:52:09 UTC Progress Report --------------- Iterations ---------- Iteration Start time End time AP count ------------------------------------------------------------------------------------------------ 0 04/13/2020 02:32:09 UTC 04/13/2020 02:32:09 UTC 1 1 04/13/2020 02:32:09 UTC 04/13/2020 02:38:09 UTC 1 2 04/13/2020 02:38:09 UTC 04/13/2020 02:44:09 UTC 1 3 04/13/2020 02:44:09 UTC ONGOING 0 Upgraded -------- Number of APs: 3 AP Name Radio MAC Iteration Status Site --------------------------------------------------------------------------------------------------------- AP3800 1880.9021.e0e0 0 Joined default-site-tag 3800-2 1880.9021.e280 1 Joined default-site-tag 9130-1 04eb.409f.9760 2 Joined default-site-tag In Progress ----------- Number of APs: 1 AP Name Radio MAC ------------------------------------------------- 4800-1 dc8c.3746.b0e0 Remaining --------- Number of APs: 0 AP Name Radio MAC ------------------------------------------------- APs not handled by Rolling AP Upgrade ------------------------------------- AP Name Radio MAC Status Reason for not handling by Rolling AP Upgrade ----------------------------------------------------------------------------------------------------------------------
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