To reload the standby switch if a parser return code (PRC) failure occurs during configuration synchronization, use the policy config-sync reload command in redundancy configuration. After this the WLC will reboot and come back as Primary and Standby WLC again. The SSO feature takes advantage of RP redundancy by establishing one of the RPs as the active RP while the other RP is designated as the standby RP, and then synchronizing critical state. Note Enabling SSO initiates a controller reboot. Note After configuring SSO mode, the standby RP will automatically reset. End with CNTL/Z. Once you get them on the same version, you will be able to get to SSO. x. The First Sign Of Life (FSOL) triggers that are supported on SSO include DHCP proxy (where the iWAG acts as the DHCP proxy server) and DHCP. 4. #sh redundancy Redundant System Information :-----Available system uptime = 1 year, 7 weeks, 1 day, 2 hours, 8 minutes Switchovers system experienced = 0 Standby failures = 0 Last switchover reason = none. mode sso. 147 as the Redundancy Management IP and controller2 with 9. Cisco IOS XE Bengaluru 17. 1. end. Check if Auto-Boot is Enabled 6. Maintenance Mode = Disabled. Cisco HA architecture is based on redundant Route Processors and the NSF and SSO features, such that ports stay active and calls do not drop, eliminating network disruption during upgrades. 63 /22. Router(config)# mode sso. Step 2. Step 5. Example: Device(config-red)# end: Exits redundancy configuration mode and. SSO は、Cisco IOS Release 12. Redundancy Mode (Operational) = sso Redundancy Mode (Configured) = sso Split Mode = Disabled Manual Swact = Enabled Communications = Up client count = 29 client_notification_TMR = 30000 milliseconds keep_alive TMR = 9000 milliseconds keep_alive count = 1 keep_alive threshold = 18 RF debug mask = 0x0 Configuring BGP. = SSO Redundancy Mode (Configured) = SSO Redundancy State = Non Redundant Manual Swact = disabled (system is simplex (no peer unit)) Communications = Down Reason:. show redundancy states. Router# configure terminal Router(config)# redundancy Router(config-red)# mode sso Router(config-red)# exit Router# copy running-config startup-config ヒント Cisco Catalyst 6500 シリーズ スイッチの詳細（設定例およびトラブルシューティング情報を含む）については、次のページに示される. Configured Redundancy Mode = sso. mode sso. Sets the redundancy configuration mode to SSO on both the active and standby RP. Step 5. In this article, we take a look at how to configure High Availability Stateful Switchover (HA SSO) on the Cisco 9800 WLCs running IOS-XE using Redundancy Management Interfaces (RMI) in addition to the Redundancy Ports (RP). For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. Example: Router>enable Router#configure terminal Router(config)#redundancy Router(config-r)#mode none Router(config-red)#application redundancy Router(config-red-app)#group 1 Configure a name for the redundancy group. Step 2: mode sso. 10. Step 2: mode sso Example: Switch (config-red)# mode sso Configures SSO. Enters redundancy configuration mode. 0. NSF is supported by the BGP, OSPF, and EIGRP routing protocols and is supported by Cisco Express Forwarding (CEF) for forwarding. Configures SSO. The mode sso command can be entered only from within redundancy configuration mode. † Software. 5. Enters global configuration mode. 6. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Follow these guidelines when configuring your system to SSO mode: You must use identical Cisco IOS images on the supervisor modules to support SSO mode. The engine will synchronize the configuration and. Chapter 5 Configuring Supervisor Engine Redundancy Using RPR and SSO About Supervisor Engine Redundancy SSO supports stateful switchover of the following Layer 2 features. If SSO mode cannot be established between the active and standby switches because of an incompatibility in the configuration file, a mismatched command list (MCL) is generated at the active switch and a reload into route processor redundancy (RPR) mode is forced for the standby switch. exit Router(config)# exit. Local State = MAINTENANCE. Configuring Cisco NSF with SSO • FindingFeatureInformation,page1 • PrerequisitesforNSFwithSSO,page1 • RestrictionsforNSFwithSSO,page2. [Redundancy Detail] ページが表示されます。 ステップ 10 [Monitor] > [Redundancy] > [Statistics] を選択し、HA ペアの冗長統計情報を表示します。 [Redundancy Statistics] ページが表示されます。 ステップ 11 : 次の手順に従って、ピア ネットワーク ルートを設定します。3. HA_CONFIG_SYNC-6-BULK_CFGSYNC_SUCCEED: Bulk Sync succeeded Switchover Process Restrictions. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. When a redundant supervisor engine runs in SSO mode, the redundant supervisor engine starts up in a fully-initialized state and synchronizes with the persistent configuration and the running configuration of the active supervisor engine. Step 2 Router(config-red)# mode sso Configures SSO. The DHCP high availability features are enabled by default when the redundancy mode of operation is set to SSO. +1 is the power supply module reserved for redundancy. This command has no. If the router is configured for SSO mode, and the active RP fails before the standby is ready to switch over, the router will recover through a full system. Follow these guidelines when configuring your system to SSO mode: You must use identical Cisco IOS images on the supervisor modules to support SSO mode. In case of n+1 redundancy, access points are configured with primary, secondary, and tertiary controllers. To set the redundancy mode to stateful switchover (SSO), use the mode sso command in redundancy configuration mode. Stateful Switchover enabled routers will always checkpoint line card. Enters redundancy configuration mode. If the. 2. Enters redundancy configuration mode. Table 13-5 Redundancy Modes, Platform Support, and. 90. x. Example: Device(config-red)# mode sso: Configures stateful switchover. Step 4. Note After configuring SSO mode, the standby RP will automatically reset. HTH,. Active WLC 上で SSO の mode を disable にする. It is setup in the below settings but I am not running a pair of these switches. Example: Device(config-red)# exit: Exits redundancy. (Optional) Backup the Startup Config and Running Config files of the controllers. Note Enabling SSO initiates a controller reboot. Switch # show redundancy Redundant System Information : ----- Available system uptime = 6 days, 9 hours, 23 minutes Switchovers system experienced = 0 Standby failures = 0 Last switchover reason = not known Hardware Mode = Simplex Configured Redundancy Mode = SSO Operating Redundancy Mode = SSO Maintenance Mode =. These sections describe supervisor engine redundancy using NSF with SSO: About Cisco IOS NSF-Aware and NSF-Capable Support; NSF with SSO Supervisor Engine Redundancy Overview. 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. The two supervisors operate in an active/standby capacity in which only one of the supervisor modules is active at any. Local State = ACTIVE. Step 4: show running-config Example:Router# show redundancy Operating mode is sso redundancy mode sso hw-module slot 6 image disk0:rsp-pv-mz hw-module slot 7 image disk0:rsp-pv-mz Active in slot 6 Standby in slot 7 The system total uptime since last reboot is 2 weeks, 23 hours 41 minutes. The mode sso command can be entered only from within redundancy configuration mode. Enters redundancy configuration mode. Step 3. Step 4 Router# show redundancy states Displays the operating redundancy. † Software upgrade. The mode sso command can be entered only from within redundancy configuration mode. The software upgrade procedure supported by supervisor engine redundancy allows you to reload the Cisco IOS software image on the redundant supervisor engine, and once complete, reload the active supervisor engine once. Step 5:. If you perform an online insertion and removal (OIR) of the module, the switch resets during the. Hardware Mode = Simplex. Example: Device(config-red)# mode sso: Configures stateful switchover. end. Check the Current ISSU and Install States 7. 168. mode sso. 在本示例中，高可用性 (HA)状态切换 (SSO)配置在运行相同Cisco IOS软件版本的两个9800-CL实例之间，这些实例已配置有独立的WMI，且可在以下位置访问 GUI: 第一个地址为IP地址10. Configures SSO. Verifies that SSO is enabled. Sets the router in SSO redundancy mode. Router# copy running. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. To disable Cisco StackWise Virtual, use the no form of this command. 9800 WLC-1# show redundancy Redundant System Information : ----- Available system uptime = 1 hour, 35 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. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to privileged EXEC mode. AP SSO set within the Cisco Unified Wireless Network software release v7. VRRP and SSO can coexist but both features work independently. This example shows how to set the redundancy mode to SSO: Device (config)# redundancy Device (config-red)# mode sso Device (config. You can configure an n+1 redundant mode. 3 allows the AP to establish CAPWAP tunnel with Active WLC and share mirror copy of AP database with Standby WLC. Cisco Employee. Example: Router(config)# router bgp 1000Example: Enabling 1:1 Redundancy Stack Mode; Example: Disabling 1:1 Redundancy; Example: Enabling 1:1 Redundancy Stack Mode. Copy the New Image to be Upgraded / Downgraded ISSU Workflows - Actual Upgrade One Step Work Flow Three Step Work Flow Post ISSU Checklist Action. mode SSO 5. Enters redundancy configuration mode. . The software upgrade procedure supported by supervisor engine redundancy allows you to reload the Cisco IOS software image on the redundant supervisor engine, and once complete, reload the active supervisor engine. end. Initiate a switchover using the command redundancy force-switchover. auto-sync running-config. When a redundant supervisor engine runs in SSO mode, the redundant supervisor engine starts up in a fully-initialized state and synchronizes with the persistent configuration and the running configuration of the active supervisor engine. Router(config-red)# end. The software upgrade procedure supported by supervisor engine redundancy allows you to reload the Cisco IOS software image on the redundant supervisor engine, and once complete, reload the active supervisor engine once. 2. Follow these guidelines when configuring your system to SSO mode: You must use identical Cisco IOS images on the supervisor modules to support SSO mode. What is SSO switchover? 5. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to SSO. Cisco 3504 Controllers. End with CNTL/Z. To reload the standby switch if a parser return code (PRC) failure occurs during configuration synchronization, use the policy config-sync reload command in redundancy configuration. The mode sso command can be entered only from within redundancy configuration mode. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. sso not available as redundancy mode option Go to solution Scott Chauncey Beginner Options 11-01-2012 01:23 PM - edited 03-07-2019 09:48 AM Any idea why rpr. Enters redundancy configuration mode. n+1 redundant Mode—n number of power supply modules are active (n can be one to seven power supply modules). Cisco StackWise Virtual operates stateful switchover (SSO) between the active and standby switches. Cisco 3504 Controllers. Step 6. “Configuring NSF with SSO Supervisor Engine Redundancy”). We have an SSO HA implementation with 2x 5520 (both AIR-CT5520-K9), software version 8. Note • The two Gigabit Ethernet interfaces on the redundant supervisor engine are always active unless you enter the fabric switching-mode allow dcef-only command. Redundancy configuration (config-red)This command supports Route Processor Redundancy (RPR) with the Cisco uBR10012 router. Step 3 Perform write memory. Usage Guidelines. Step 3. redundancy 4. Step 6. Redundancy State = sso . The problem is a version mismatch. 48. Configures SSO. The system has experienced 4 switchovers. In the RPR mode, one of the supervisor engines is active and operational, while the second supervisor engine is in the standby mode. 6. Usage Guidelines. If a switch is configured for SSO mode, then stand-by supervisor engine stops at " FIB table synchronization" and waits for active supervisor to fail. The following are the ways in which Cisco StackWise Virtual's redundancy model differs from that of the standalone mode: The Cisco StackWise Virtual active and standby switches are hosted in separate switches and use a StackWise Virtual link to exchange information. Redundancy Mode (Operational) = sso . SSO-The show module command displays Hot. Configured Redundancy Mode = sso. ASR は2種類のRP redundancy modeがあります。 RPR Route Processor Redundancy とSSO Stateful Switchover になります。 RPR を使用すると、スタンバイ RP を設定することができます。RPR を設定する場合、 スタンバイ RP はブートアップ時に Cisco IOS ソフトウェアをロードし、スタンバイ モードで自身を初期化します. Router(config-red)# end. Recovery Mode Yes Yes Default GW Check Yes Yes LACP, PAGP with SSO No Yes SMU for controller patching No Yes. Configures SSO. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to privileged EXEC mode. When a redundant supervisor engine runs in SSO mode, the redundant supervisor engine starts up in a fully-initialized state and synchronizes with the persistent configuration and the running configuration of the active supervisor engine. The Supervisor 7-E card has four uplink ports on its front panel. Verifies that SSO is enabled. Step 5. SSO pair connected to upstream VSS pair with split links and RP connected back to back. ATM SSO is not configurable and runs by default on networking devices configured with ATM and Redundancy Mode SSO. Redundancy may not work due to differences between the Cisco. Router(config)# mode sso. 2(20)EWA and later releases. The mode sso command can be entered only from within redundancy configuration mode. # redundancy Switch(config-red)# mode sso Switch(config-red)# end Switch# show redundancy states my state = 13 -ACTIVE peer. Version 7. mode sso. To re-enable SSO, execute the command Config redundancy sso on the primary and secondary controllers. 2(20)EWA and later releases. Example: Device(config-red)# mode sso: Configures stateful switchover. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. mode sso. Enters redundancy configuration mode. x [S2C-build-v16x_throttle-4064-/. Check if Switches are in SSO Mode 5. Cisco IOS Nonstop Forwarding (NSF) always runs with stateful switchover (SSO) and provides redundancy for Layer 3 traffic. Note Enabling SSO initiates a controller reboot. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Router#show redundancy Redundant System Information : ----- Available system uptime = 6 days, 4 hours, 17 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 =. Step 6. Follow these guidelines when configuring your system to SSO mode: You must use identical Cisco IOS images on the switches in the stack to support SSO mode. e. SSO on the other hand is fully initialized. end. Redundancy may not work due to differences between the Cisco IOS releases. Step 6: mode sso. This chapter consists of these sections:. Supervisor engine redundancy allows OIR of the redundant supervisor engine for maintenance. In SSO mode . When the controller works as a host for spanning tree, ensure that you configure portfast trunk in the uplink switch using. Maintenance Mode = Disabled. Uptime in current state = 4 days, 21 hours, 27 minutesYes you need the RP in order to build SSO. Go to solution. 5. Usage Guidelines. Enter application redundancy mode. 101. What is RPR redundancy?. The system has experienced 4 switchovers. 9. 4 allows the access point (AP) to establish a CAPWAP tunnel with the Active WLC and share a mirror copy of the AP database with the Standby WLC. 90. For information about the in-chassis standby supervisors, enter the show redundancy rpr command in privileged EXEC mode on the Cisco StackWise Virtual active supervisor. Step 7: mode sso. Check the Current ISSU and Install States 7. ※ このドキュメントでは AireOS 8. When a redundant supervisor engine runs in SSO mode, the redundant supervisor engine starts up in a fully-initialized state and synchronizes with the persistent configuration and the running configuration of the active supervisor engine. Router(config)# redundancy. after reboot ASR can used single processer but, when I show redundancy configure still mode sso I used in config t and redundancy and default-exit and enter and save non reboot after then show config again config in redundacy mode none Bias-Free Language. 5. Redundancy Mode (Configured) = sso Redundancy State = sso Maintenance Mode = Disabled Manual Swact = enabled Communications = Up client count = 115Operating Redundancy Mode = RPR. 2(20)EWA and later releases. 0 !Router# show redundancy Redundant System Information : ----- Available system uptime = 39 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. debug redundancy {infra | facilitator. client count = 109 . insrc-redundant. This feature is supported on all controller models supporting HA SSO feature: Cisco 8500 Series Controllers . Step 4. Router# show redundancy Operating mode is sso redundancy mode sso hw-module slot 6 image disk0:rsp-pv-mz hw-module slot 7 image disk0:rsp-pv-mz Active in slot 6 Standby in slot 7 The system total uptime since last reboot is 2 weeks, 23 hours 41 minutes. Follow these guidelines when configuring your system to SSO mode: You must use identical Cisco IOS images on the switches in the stack to support SSO mode. x. When a redundant supervisor engine runs in SSO mode, the redundant supervisor engine starts up in a fully-initialized state and synchronizes with the persistent configuration and the running configuration of the active supervisor engine. Check if Switches are in SSO Mode 5. end. cisco Systems, Inc. When a redundant supervisor engine runs in SSO mode, the redundant supervisor engine starts up in a fully-initialized state and synchronizes with the persistent configuration and the running configuration of the active supervisor engine. Router# show redundancy Redundant System Information : ----- Available system uptime = 39 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. Enters redundancy configuration mode. The system has experienced 4 switchovers. Configuration, forwarding, and state information are synchronized from the StackWise Virtual active switch to the redundant switch at startup, and whenever changes to the StackWise Virtual. This feature is not supported on the C9500-12Q, C9500-16X, C9500-24Q, C9500-40X models of the Cisco Catalyst 9500 Series Switches. This mode utilizes two electrical grids, each one powering a half module within each power supply. Hardware Mode = Duplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso. Router#show redundancy Redundant System Information : ----- Available system uptime = 6 days, 4 hours, 17 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. I will show you how to make a wireless-controller-cluster. What is stateful switch over? Stateful Switchover (SSO) is a redundancy feature that allows a Cisco device with two route processors to synchronise router configuration and control plane state information. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. Step 5: end. Router (config-red)# end. 3 and 7. Operating Redundancy Mode = sso. Is there anything I can do to force it out of maintenance mode? show redundancy summary Redundancy Mode = SSO ENABLED Local State = MAINTENANCE Peer State = UNKNOWN - Communication Down Unit = Secondary Redundancy State = Non Redundant Maintenance Mode = Enabled Maintenance cause= Secondary unit has. IP-adres 10. SSO Operation SSO is supported in Cisco IOS Release 12. 2(20)EWA and later releases. Step 4. Enters redundancy configuration mode. Enters redundancy configuration mode. Configured Redundancy Mode = SSO Operating Redundancy Mode = SSO Maintenance Mode = Disabled Communications = Down Reason: Simplex mode Current Processor Information :-----Active Location = slot 1 Current Software state = ACTIVE Uptime in current state = 6 days, 9 hours, 23 minutes Image Version = Cisco IOS Software, IOS-XE Software, Catalyst 3 Device # show redundancy Redundant System Information : ----- Available system uptime = 6 days, 9 hours, 23 minutes Switchovers system experienced = 0 Standby failures = 0 Last switchover reason = not known Hardware Mode = Simplex Configured Redundancy Mode = SSO Operating Redundancy Mode = SSO Maintenance Mode = Disabled Communications = Down. The NSF capability on Cisco Catalyst 9300 Series Switches can. The show redundancy and show issu state commands verify that redundancy mode is enabled and that SSO and NSF are configured. = 0 Last switchover reason = active unit removed Hardware Mode = Duplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso Maintenance Mode =. Note After configuring SSO mode, the standby RP will automatically reset. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to privileged EXEC mode. When a redundant supervisor engine runs in SSO mode, the redundant supervisor engine starts up in a fully-initialized state and synchronizes with the persistent configuration and the running configuration of the active supervisor engine. end. Standby として動作していた WLC のポートを変更するか、コンフィグの初期化する. 1. Redundancy Mode (Configured) = sso . If you perform an online insertion and removal (OIR) of the module, the switch resets during the. 133 voor de tweede, WLC2 genoemd. If controller1 is configured with 9. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Redundancy may not work due to differences between the Cisco IOS. end. Usage Guidelines. 3. In an HA environment using FlexConnect locally switched clients, the client information might not show the username. 151. SSO pair connected to upstream VSS pair with split links and RP connected back to back. Table 1 Power Redundancy Modes; Redundancy Mode. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. This example shows how to set the redundancy mode to SSO: Device(config)# redundancy Device(config-red)# mode sso Device(config-red)# policy config-sync prc reload. 10. 48. Enters redundancy configuration mode. Book Contents Book Contents. Active WLC 上で SSO の mode を disable にする. exit 6. Configures SSO. Check if There is Sufficient Available Memory on Flash 4. The software will prompt to reboot the Standby Supervisor (in slot 5) - confirm to reboot - exit configuration mode and save the configuration. 0. Current Processor Information :----- Active Location = slot 1 Current Software state = ACTIVE. 3. Once the WLCs are back up then go ahead and reconfigure the HA AP-SSO on the Controller by issuing the following command: Controller>config redundancy mode sso. 131. One switch is running 3. Step 6. My routers only show redundancy mode as none. Upgrade the current active Supervisor. see. Step 3. 1. This mode does not provide power redundancy. Step 4: mode SSO Example: Router(config)# mode SSO: Configures SSO. Configured Redundancy Mode = RPR. SSO pair connected to upstream VSS pair with RP connected via the upstream set of switches in order to detect gateway down scenario. Ensures that the PFC operating mode matches on both chassis, to ensure that the VSS comes up in SSO redundancy mode. Router# show redundancy Redundant System Information :-----Available system uptime = 1 hour, 0 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. 255. Step 6 . Follow these guidelines when configuring your system to SSO mode: You must use identical Cisco IOS images on the to support SSO mode. † If the switch is configured for SSO mode, and the active RP fails before the standby is ready toLACP and PAGP is not supported in HA mode in releases until, and including, Cisco IOS XE Gibraltar 16. @Ivan Shirshin wrote: Hi, It is likely standby sup is stuck in boot or ROMMON mode as it is showing Other status in the outputs above. Router# copy running. To reload the standby switch if a parser return code (PRC) failure occurs during configuration synchronization, use the policy config-sync reload command in redundancy configuration. The processing of mirroring this information between route processors is known as checkpointing. 130 pour le. This feature is supported on all controller models supporting HA SSO feature: Cisco 8500 Series Controllers . redundancy 4. Catalyst 4500 series switches allow a redundant supervisor engine to take over if the active supervisor engine fails. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. On the Cisco 8500 Series Catalyst Edge Platform, Stateful Switchover (SSO) can be used to enable a second IOS process. mode sso. 56. For WLC 1, go to Monitor > Redundancy > Summary: b. Once you get them on the same version, you will be able to get to SSO. redundancy mode sso. Router# show redundancy Redundant System Information : ----- Available system uptime = 39 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. Step 2. NSF and SSO must be configured before attempting an ISSU. C6807-XL#show redundancy Redundant System Information :----- Available system uptime = 21 hours, 41 minutes Switchovers system experienced = 0 Standby failures = 0 Last switchover reason = none Hardware Mode = Simplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso Maintenance Mode = Disabled. I try to setup HA with SSO with 2x WLC 5520 version 8. In an HA environment using FlexConnect locally switched clients, the client information might not show the username. 除了這些IP地址外. Sets the redundancy configuration mode to SSO on both the active and standby RP. SSO pair connected to upstream HSRP active and standby and RP connected via upstream set Now, let’s focus on Cisco SSO Configuration and learn how to configure SSO on Cisco routers. Router# show redundancy Redundant System Information : ----- Available system uptime = 39 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. When you configure the controller for HA SSO, the Cisco 600 Series OfficeExtend Access Points are not supported. If you perform an online insertion and removal (OIR) of the module, the switch resets during the. On primary controller, disable SSO using the command: Config redundancy mode disable The Active and Standby WLCs. The VSS runs stateful switchover (SSO) between the VSS active and standby supervisor engines (see Figure 5.