Route Processor Redundancy (RPR) refers to the provision of support for the redundancy feature. Router# show redundancy Redundant System Information :-----Available system uptime = 38 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 =. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. Router# configure terminal Router(config)# redundancy Router(config)# mode SSO Router(config)# exit Router# reload Stateful Switchover. Enters redundancy configuration mode. Heres the redundancy cfg: redundancy. Example: Device(config-red)# mode sso: Configures stateful switchover. 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. Enters redundancy configuration mode. Connect redundancy ports together on primary/secondary. Note Enabling SSO initiates a controller reboot. Step 4. (Optional) Ensure network. 2(20)EWA and later releases. Connect with console to it and check which state it is in. Follow these guidelines when configuring your system to SSO mode: You must use identical Cisco IOS images on the to support SSO mode. Router# copy running. Returns to EXEC mode. Step 3: end. The routing protocols have been enhanced with NSF-capability and. 7) Initiate the reset system self make sure that to verify all the AP's Up and Primary working fine. configure redundancy unit secondary. Table 1 Power Redundancy Modes; Redundancy Mode. 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. Further, if the active RP fails, no change occurs to the HSRP group itself and traffic continues to be forwarded through the current active gateway device. 2(20)EWA and later releases. While implementing Nonstop Forwarding (NSF) technology in systems using SSO. SSO is supported in Cisco IOS Release 12. Wrong handling can happen and. SSO pair connected to upstream VSS pair with RP connected via the upstream set of switches in order to detect gateway down scenario. The two supervisors operate in an active/standby capacity in which only one of the supervisor modules is active at any given time, while. 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. If it is in ROMMON, try boot with manual "boot" command. 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. 61 /24. Cisco NSF with SSO allows for the forwarding of data packets to continue along known routes while the routing protocol information is being restored following a switchover. If it is in ROMMON, try boot with manual "boot" command. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to SSO. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. The NSF/SSO—L2VPN Pseudowire Redundancy feature enables you to set up your network to detect a failure in the network and reroute the L2 service to another endpoint that can continue to provide service. Redundancy may not work due to differences between the Cisco. 131. SSO is supported in Cisco IOS Release 12. Hardware Mode = Duplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso Maintenance Mode = Disabled Communications = Up Current Processor Information :-----Active Location = slot 5 Current Software state = ACTIVE Uptime in current state = 6 days, 5 hours, 28 minutes Image Version = Cisco IOS Software, Catalyst L3 Switch Software Cisco NSF は、SSO 対応のデバイスにおけるルーティング フラップを抑止することによって、ネットワークの安定性を保ちます。 Cisco NSF と SSO により、スイッチオーバー後にルーティング プロトコル情報が復元される間も、既知のルートでデータ パケットの. 2(20)EWA and later releases. 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. Router# copy running-config startup-config %HA-5-MODE:Operating mode is sso, configured mode is sso. They will reboot again. 3 and 7. 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. Step 6 . 2(20)EWA and later releases. Use the power redundancy-mode {combined. 6. Router(config)# redundancy. 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 =. Sw-4510R (config-red)#>redundancy Sw-4510R (config-red)#mode sso Changing to sso mode will. 5 and the other is running 3. Enabling SSO reboots the controllers to negotiate the HA role as per the configuration performed. Note After configuring SSO mode, the standby RP will automatically reset. The mode sso command can be entered only from within redundancy configuration mode. 255. Device(config-red)# mode sso: Configures stateful switchover. Cisco 3504 Controllers. 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 following are the ways in which Cisco StackWise Virtual's. In dit voorbeeld is de stateful switchover (SSO) met hoge beschikbaarheid (HA) geconfigureerd tussen twee 9800-CL-instanties, die dezelfde Cisco IOS-softwareversie uitvoeren, die geconfigureerd zijn met gescheiden WMI's en met GUI die toegankelijk is op. Check the Boot Mode 3. And it has to be Layer 2 between the 2 RPs, so either directy connected or through a VLAN. 12 255. Example: Router(config-red)# mode sso. 6. Step 2: mode sso Example: Switch (config-red)# mode sso Configures SSO. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Cisco Employee. シングル構成しているのが片方電源を抜いてもトラップがとばないのです。在本示例中，高可用性 (HA)狀態切換 (SSO)配置在兩個9800-CL例項之間，這些例項運行相同的Cisco IOS軟體版 本，這些例項已配置有獨立的WMI，並且可以通過以下網址訪問的GUI. 168. Current Processor Information :-----Active Location = slot 1/3 Current Software state = ACTIVE Uptime in current state = 23 hours, 58 minutes Image Version = Cisco IOS Software, s2t54 Software (s2t54. end. This made the standby WLC to go into maintenance mode. Router(config)# mode sso. Redundancy may not work due to differences between the Cisco IOS releases. Step 3. insrc-redundant. Image Version = Cisco IOS Software, Catalyst L3 Switch Software (CAT9K_IOSXE), Experimental Version 16. You can configure an n+1 redundant mode. Once you get them on the same version, you will be able to get to SSO. Step 5. hw-switch switch 1 logging onboard message level 3. Router # Answer: In software, supervisor engine redundancy is enabled by running the redundant supervisor engine in route processor redundancy (RPR) or stateful switchover (SSO) operating mode. To set the redundancy mode to stateful switchover (SSO), use the mode sso command in redundancy configuration mode. Switches can run multiple route processors (supervisors) in 3 modes: RPR (Route Processor Redundancy) RPR+ (Route Processor Redundancy plus) SSO (Stateful Switchover) While RPR was the 1 st one to be introduced, RPR+ came in later and the latest offering was SSO. Configure redundancy with RMI + RP pairing. end. Step 2. Catalyst 4500 series switches allow a standby supervisor engine to take over if the active supervisor engine fails. 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). 90. Cisco SSO (frequently used with NSF) minimizes the time a network is unavailable to its users following a switchover while continuing to forward IP packets. 255. Step 4: show running-config Example: Enters redundancy configuration mode. Switch# show redundancy states. Check if Auto-Boot is Enabled 6. Further, if the active RP fails, no change occurs to the HSRP group itself and traffic continues to be forwarded through the current active gateway device. Example: Router(red-config)# mode sso: Sets the redundancy configuration mode to SSO. mode SSO 5. Communications = Up. Step 5. Step 4. The mode sso command can be entered only from within redundancy configuration mode. Here is the output from the standby while booting up:. Exits configuration mode and returns to the. The following is a sample output of the show redundancy rpr command run on the Cisco StackWise Virtual active supervisor:SSO is supported in Cisco IOS Release 12. 130，称为WLC1; 第二个地址为IP地址10. Example: Device (config-red)# endWith SSO redundancy, the StackWise Virtual standby switch is always ready to assume control if a fault occurs on the StackWise Virtual active switch. It is not recomended to configure RA (Registration Authority) as it is not validated. Maintenance Mode = Disabled. If you perform an online insertion and removal (OIR) of the module, the switch resets during the. Router(config-red)# end. The primary will reboot to enable sso and pull the config from the current active (secondary in this case) unit xml on boot. In software, supervisor engine redundancy is enabled by running the redundant supervisor engine in route processor redundancy (RPR) or stateful switchover (SSO) operating mode. SSO works with Cisco NSF, which helps reduce the switchover downtime on Layer 3. Local State = ACTIVE. Step 5. Router(config-red)# end. To do this, we will use “redundancy” command under global configuration mode and after that we will select mode with “mode sso” command. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. Before you begin the ISSU process, verify the redundancy mode for the system. The problem is a version mismatch. 0 10. Usage Guidelines. 2(20)EWA and later releases. 1. SSO-The show module command displays Hot. The SSO HSRP feature enables the Cisco IOS HSRP subsystem software to detect that a standby RP is installed and the system is configured in SSO redundancy 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. 10. The Cisco Nexus 9504, 9508, 9516,. License for 100 APs, 96 APs in use. Note SSO is not supported if the IOS-XE software is running in the LAN Base mode. Router(config-red)# end. Exits redundancy configuration mode and returns the switch to privileged EXEC mode. The feature is enabled by default when the redundancy mode of operation is set to SSO. Chapter 5 Configuring Supervisor Engine Redundancy Using RPR and SSO About Supervisor Engine Redundancy SSO supports stateful switchover of the following Layer 2 features. 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. Example: Device(config-red)# end: Exits redundancy configuration mode and. Example: Device(config-red)# exit: Exits redundancy. Active WLC 上で SSO の mode を disable にする. Switch(config-red)# end. Are these switches setup in this manner by default? Can the redundancy be disabled if I am not going to use redundancy? What are the commands to disable redundancy? switch 1 provision ws-c3850-48p. Step 4: show running-config Example:Enters redundancy configuration mode. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. The redundancy port in standalone controllers and the redundancy VLAN in Cisco WiSM2 are assigned. What is redundancy mode Cisco? 4. Step 5. The NSF capability on Cisco Catalyst 9300 Series Switches can. Exits redundancy configuration mode and returns the switch to privileged EXEC mode. 0. † Software upgrade. Save the configuration on the controller. Switch# show running-config. Check if Auto-Boot is Enabled 6. Step 3. SSO refers to the implementation of Cisco IOS software that allows applications and features to maintain a defined state between an active and standby Route Processor (RP). l’adresse IP 10. 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. mode sso. 9. Enters redundancy configuration mode. Step 5: end. redundancy Router(config)# redundancy. This chapter consists of these sections:. Step 6. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. Step 2: mode sso. show redundancy >>>>>> check here for mode you have configured. = sso Redundancy Mode (Configured) = sso Split Mode = Disabled Manual Swact = Enabled Communications = Up client count = 29 client_notification_TMR = 30000 milliseconds keep_alive TMR. Check if There is Sufficient Available Memory on Flash 4. Enters redundancy configuration mode. 2(20)EWA and later releases. 150. Usage Guidelines. Step 6. Combined. 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. スタック構成をしているものは電源を片方の電源を抜くとトラップはとぶのですが. 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. auto-sync config-register. 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. Hardware redundancy on the Cisco ASR 1000 Series Routers gives users the following benefits: A failover option—If a processor fails, the standby processor immediately becomes the active processor with little or no delay. Example: Device (config-red)# mode sso: Configures SSO. x [S2C-build-v16x_throttle-4064-/. I am seeing the SSO is established. SSO is supported in Cisco IOS Release 12. 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. Manual Swact = enabled . 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. 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 =. Note Enabling SSO initiates a controller reboot. Usage Guidelines. A critical component of SSO and Cisco HA technology is the cluster control manager (CCM) that manages session re-creation on the standby processor. Device# show redundancy Redundant System Information : ----- Available system uptime = 6 days, 5 hours, 28 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. Cisco IOS XE Software, Version 17. If the command is not found in the Catalyst 4500 Command Reference, it is located in the larger Cisco IOS library. The stack operates in the 1:1 stack mode with the specified active or standby after reboot. Redundancy may not work due to differences between the Cisco. Router(config-red)# end. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. 133，称为WLC2。. 9. Example: Router(config)# exit Example: Router # Enters redundancy configuration mode. 2 (11)BC3. With RPR+, the redundant supervisor engine is fully initialized and configured, which shortens the. running with image version 8. Step 5. Enters redundancy configuration mode. (Operational) = sso Redundancy Mode. 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. Exits redundancy configuration mode and returns the switch to privileged EXEC mode. Configured Redundancy Mode = RPR. end. Reason: Software version. Redundancy Mode (Operational) = Non-redundant Redundancy Mode (Configured) = sso Redundancy State = Non Redundant Maintenance Mode = Disabled Manual Swact = disabled (system is simplex (no peer unit)) Communications = Down Reason: Simplex mode client count = 103 client_notification_TMR = 30000 milliseconds RF debug mask = 0x0Go to solution. ) To minimize down time during software changes on the supervisor engine, load the new image onEnters redundancy configuration mode. 2(20)EWA and later releases. 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 6. Router(config-red)# end. The SSO model monitors the health of the active controller via a redundant (HA) port. Redundant System Information : Available system uptime = 53 minutes Switchovers system experienced = 0 Standby failures = 0 Last switchover reason = noneCisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE Cupertino 17. Note After configuring SSO mode, the standby RP will automatically reset. end. Enters redundancy configuration mode. Stateful Switchover is particularly useful in conjunction with Nonstop. reload Table 7-3 Software Redundancy Options for Cisco ASR 1002 and 1004 Routers Router Default HA Setting Options with 2 GB or DRAM Options with 4 GB or DRAM Cisco ASR 1002 Router None None None, RPR, SSO Cisco ASR 1004 Router None None None, RPR, SSO2 つの Cisco Wireless Services Module 2（WiSM2）プラットフォーム間の HA を実現するには、コントローラを単一のシャーシに配置するか、仮想スイッチング システム（VSS）を使用してリダンダンシー VLAN を複数のシャーシ間に拡張することで、複数のシャーシに配置する必要があります。3. Router(config-red)# mode sso. Step 4. Enters redundancy configuration mode. Enters redundancy configuration mode. SSO Operation. Cisco ASR1006 supports the stateful failover from an active Enhanced Services Processor (ESP) to a standby and from an active Route Processor to a standby on the same box. If the HA unit is not an HA sku, then you need a minimum of 50 ap license. Cisco IOS XE Bengaluru 17. Redundancy may not work due to differences between the Cisco IOS releases. If a VSS does not meet the requirements for SSO redundancy, it will be incapable of establishing a relationship with the peer switch. 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. Step 4. If you perform an online insertion and removal (OIR) of the module, the switch resets during the stateful switchover and the. 39. +1 is the power supply module reserved for redundancy. Cisco NSF with SSO allows for the forwarding of data packets to continue along known routes while the routing protocol information is being restored following a switchover. show redundancy states. Enters redundancy configuration mode. Cisco SSO (frequently used with NSF) minimizes the time a network is unavailable to its users following a switchover while continuing to forward IP packets. After rebooting the primary controller changed into Maintanence Mode. 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. Operating Redundancy Mode = sso Maintenance Mode = Disabled Communications = Up Current Processor Information :-----Active Location = Switch 2 Current Software state =. IP-adres 10. Both controllers reboot and pair up in the SSO mode. main-cpu. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. Configured Redundancy Mode = SSO. The default mode for the Cisco uBR10012 universal broadband router is SSO. 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. . Step 5. Step 1. Book Contents Book Contents. This feature is not supported on the C9500-12Q, C9500-16X, C9500-24Q, C9500-40X models of the Cisco Catalyst 9500 Series Switches. This example shows how to set the redundancy mode to SSO: Device (config)# redundancy Device (config-red)# mode sso Device (config. 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. Maintenance Mode = Disabled . Note After configuring SSO mode, the standby RP will automatically reset. Step 6. 0. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. SSO HSRP alters the behavior of HSRP when a device with redundant Route Processors (RPs) is configured for stateful switchover (SSO) redundancy mode. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. Switch# show running-config. 48. #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. Step 2. RPR redundancy mode is used. Example: Device(config-red)# mode sso: Configures stateful switchover. Step 5: end. This command has no. Check if There is Sufficient Available Memory on Flash 4. The Supervisor 7-E card has four uplink ports on its front panel. 0. General Restrictions Two RPs must be installed in the chassis, each running the same version of the Cisco IOS software. 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. Communications = Up . Copy the New Image to be Upgraded / Downgraded ISSU Workflows - Actual Upgrade One Step Work Flow Three Step Work Flow Post ISSU Checklist Action. High Availability SSO Deployment Guide for Cisco Catalyst 9800 Series Wireless Controllers, Cisco IOS XE Amsterdam 17. 12. Example: Device (config-red)# mode sso: Configures SSO. SSO is supported in Cisco IOS Release 12. Maintenance Mode = Disabled. Step 4. Router# copy running-config startup-config 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. Upgrade the current active Supervisor. You can configure the Stateful Interchassis Redundancy feature to determine the active device from a group of devices, based on a number of failover conditions. Information About Redundancy. 0 を. x [S2C-build-v16x_throttle-4064-/. The Virtual Redundancy Routing Protocols (VRRP) is not SSO-aware, meaning state information is not maintained between the active and standby switches during normal operation. 2. High availability SSO is setup and is working good. (Optional) Backup the Startup Config and Running Config files of the controllers. Router(config)# mode sso. 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. 2(20)EWA and later releases. see. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. Step 5. 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. 131. My Secondary Switch is in disable state despite its in SSO mode. Connected to network with 4x10G links. mode sso. redundancy 4. Redundancy may not work due to differences between the Cisco IOS releases. Step 4: mode SSO Example: Router(config)# mode SSO: Configures SSO. Communications = Up. exit Router(config)# exit. 0. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to SSO. in my case it was secondary. exit 6. Redundancy Mode (Operational) = sso Redundancy Mode (Configured) = sso Redundancy State = sso Maintenance Mode = Disabled Manual Swact = enabled Communications = Up. To re-enable SSO, execute the command Config redundancy sso on the primary and secondary controllers. (RTU Evaluation License by now) - Network Connection beween the WLC5520: LAG. Hope that helps! -Bradley Selzer. Redundancy may not work due to differences between the Cisco IOS releases. Enters redundancy configuration mode. WLC のステータスや設定を確認する. Supervisor Module Redundancy. 6. Step 4: mode SSO Example: Router(config)# mode SSO Configures SSO. If a switch is configured for SSO mode, then stand-by supervisor engine stops at " FIB table synchronization". If active supervisor fails, then standby sup will perform following in sequence: Layer3 protocol initialized, routing tables. Once you get them on the same version, you will be able to get to SSO. Redundancy may not work due to differences between the Cisco. I will show you how to make a wireless-controller-cluster. 168. Step 4. auto-sync running-config. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. 147 as the Redundancy Management IP and controller2 with 9. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. Maintenance Mode = Disabled. Step 5. Description. config redundancy mode sso on primary. . 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. 0SG and later releases. The time required by the device to switch over from the active RP to the standby RP varies by platform: Although the newly active processor takes over almost immediately following a switchover, the time required for the device to begin operating again in full redundancy (SSO) mode can be several minutes, depending on the platform. 149, you need to execute the following command in controller1 for redundancy mode: redun-management interface Vlan vlan-interface-no chassis chassis-number address ip-address chassis chassis-number address ip-addressAvailable system uptime = 6 weeks, 6 days, 5 hours, 2 minutes. 168. RTR02-Sec#sh redundancy. Step 2. The mode sso command can be entered only from within redundancy configuration mode. Note Enabling SSO initiates a controller reboot. Redundant System Information :-----Available system uptime = 1 year, 49 weeks, 6 days, 20 hours, 30 minutes Switchovers system experienced = 2 Standby failures = 6 Last switchover reason = active unit removed. The SSO HSRP feature enables the Cisco IOS HSRP subsystem software to detect that a standby RP is installed and the system is configured in SSO redundancy mode. mode sso. The two supervisors operate in an active/standby capacity in which only one of the supervisor modules is active at any. 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 =. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. = SSO Redundancy Mode (Configured) = SSO Redundancy State = Non Redundant Manual Swact = disabled (system is simplex (no peer unit)) Communications = Down Reason:. This feature is supported on all WLC models supporting HA SSO feature: Cisco 8500 Series WLCs .