What can be the reason. In SSO mode . Here is the output from the standby while booting up:. Step 3: end Example: Switch (config-red)# end Returns to EXEC mode. Supervisor Module Redundancy. 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. Convert RPR to SSO mode, this will force a reboot on standby supervisor. Step 2. Step 5. 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. 168. Note After configuring SSO mode, the standby RP will automatically reset. x. Verify the redundancy status using command : show redundancy summary 5. 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. SSO-The show module command displays Hot. Step 6 . 4) Once WLC is back verify the Boot image version is matching with the Primary. Example: Router(config)# router bgp 1000Example: Enabling 1:1 Redundancy Stack Mode; Example: Disabling 1:1 Redundancy; Example: Enabling 1:1 Redundancy Stack Mode. The default mode for the Cisco 12000 series routers is RPR. Usage Guidelines. SSO checkpointing is the process of mirroring information between RPs. Configured Redundancy Mode = sso Operating Redundancy Mode = sso Maintenance Mode = Disabled Communications = Up Current Processor Information :----- Active Location = slot 1/2 Current Software state = ACTIVE Uptime in current state = 36 minutes Image Version = Cisco IOS Software, s2t54 Software (s2t54-ADVENTERPRISEK9-M),SSO is supported in Cisco IOS Release 12. Ensures that the PFC operating mode matches on both chassis, to ensure that the VSS comes up in SSO redundancy mode. Redundancy may not work due to differences between the Cisco IOS releases. 05-25-2012 08:56 AM - edited 03-07-2019 06:54 AM. Redundancy may not work due to differences between the Cisco IOS releases. 2(20)EWA and later releases. Cat-6509#show redundancy Redundant System Information : ----- Available system uptime = 10 hours, 12 minutes Switchovers system experienced = 1 Standby failures = 1 Last switchover reason = user initiated Hardware Mode = Duplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso!--- This. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. 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. end. 6. 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 =. 4. Enter application redundancy mode. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to privileged EXEC mode. Redundancy Mode (Configured) = sso Redundancy State = sso Maintenance Mode = Disabled Manual Swact = enabled Communications = Up client count = 115Operating Redundancy Mode = RPR. 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 reset. 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. 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. 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. We will definitely upgrade are fus code. Catalyst 4500 series switches allow a standby supervisor engine to take over if the active supervisor engine fails. 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. When this command is entered, the standby switch is reloaded and begins to work in SSO 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. When a failover occurs, the standby device seamlessly takes over, starts performing traffic forwarding services, and maintains a dynamic routing table. mode sso. Step 3:. Last switchover reason = user_forced. In Cisco Wireless LAN Controllers, redundancy is achieved in two ways— n+1 and AP SSO redundancy. Example: Device(config-red)# mode sso: Configures stateful switchover. Redundancy may not work due to differences between the Cisco. Catalyst 4500/4500-X series switches' VSS does not support route processor redundancy (RPR) mode. Learn more about how Cisco is using Inclusive Language. HA_CONFIG_SYNC-6-BULK_CFGSYNC_SUCCEED: Bulk Sync succeeded Switchover Process Restrictions. 3. Reason: Software version. = sso Redundancy Mode (Configured) = sso Split Mode = Disabled Manual Swact = Enabled Communications = Up client count = 29 client_notification_TMR = 30000 milliseconds keep_alive TMR. SSO Operation. 05 Model Number : C9606R Model Number : C9606R: CAT9600#sh redundancy Hardware Mode = Duplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso Active Location = Switch 2 Current Software state = ACTIVE Standby Location = Switch 1 Current Software state = STANDBY HOT: CAT9600#show license summary With Stateful Switchover (SSO), Cisco IOS routers with dual RPs can synchronize router configuration and control plane state information. What is RPR redundancy?. Enters redundancy configuration mode. 255. 12. 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. If you perform an online insertion and removal (OIR) of the module, the switch resets during the. Step 3. 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. end. (Optional) Backup the Startup Config and Running Config files of the controllers. 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. 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 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. 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). Usage Guidelines. 12. 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. mode SSO 5. 10. Step 5:. I am seeing the SSO is established. Router(config-red)# end. Step 5: exit. The configuration on the active controller is synched to the standby controller via the redundant port. Check the Current ISSU and Install States 7. This feature is not supported on the C9500-12Q, C9500-16X, C9500-24Q, C9500-40X models of the Cisco Catalyst 9500 Series Switches. main-cpu. Router(config)# mode sso. Step 2: mode sso. 10. 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 4. The two supervisors operate in an active/standby capacity in which only one of the supervisor modules is active at any. 39. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to SSO. SSO pair connected to upstream HSRP active and standby and RP connected via upstream setNow, let’s focus on Cisco SSO Configuration and learn how to configure SSO on Cisco routers. Redundancy may not work due to differences between the Cisco IOS. 1. My routers only show redundancy mode as none. Step 2: mode sso . Example: Device(config-red)# mode sso: Configures stateful switchover. Note After configuring SSO mode, the standby RP will automatically reset. 0 10. 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 =. 255. 0. end. 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. 配置. auto-sync running-config. hw-switch switch 1 logging onboard message level 3. mode sso. Maintenance Mode = Disabled. † 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. Example: Device#. 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. If you perform an online insertion and removal (OIR) of the module, the switch resets during the. 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. mode sso. Step 2 Enter the redundancy config-sync ignore mismatched-commands EXEC command at the active standby supervisor engine. 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. Enters redundancy configuration mode. 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 minimize down time during software changes on the supervisor engine, load the new image onEnters redundancy configuration mode. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Operating Redundancy Mode = rpr. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. End with CNTL/Z. Cisco IOS Software, Catalyst 4500 L3 Switch Software. Note After configuring SSO mode, the standby RP will automatically reset. 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. 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 2. Step 5. Connect redundancy ports together on primary/secondary. Router (config-red)# mode sso. Enters redundancy configuration mode. When this command is entered, the standby supervisor module is reloaded and begins to work in SSO mode. Step 5. Verifies that SSO is enabled. Step 4: mode sso. Image Version = Cisco IOS Software, IOS-XE Software, Catalyst 3 850 L3 Switch Software (CAT3850-UNIVERSALK9-M), Version 03. 1. 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. 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. 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. Maintenance Mode = Disabled . Configuration Examples for DHCP High. Switch(config-red)# end. SSO HSRP. Step 3:. From Cisco IOS XE Amsterdam 17. 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. auto-sync bootvar. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. 2(20)EWA and later releases. SSO is supported in Cisco IOS-XE Release 3. HA_CONFIG_SYNC-6-BULK_CFGSYNC_SUCCEED: Bulk Sync succeeded Switchover Process Restrictions. Example: Device(config-red)# mode sso: Configures stateful switchover. Router# configure terminal. end. I have 2x 5508 in SSO mode. To do this, we will use “redundancy” command under global configuration mode and after that we will select mode with “mode sso” command. When the controller works as a host for spanning tree, ensure that you configure portfast trunk in the uplink switch using. 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 standby switch is reloaded and begins to work in SSO mode. According to cisco: SSO is the IOS High Availability feature that allows one RSP on a 7500 to immediately take over for the other RSP in the event of an RSP failure. 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. 255. Redundancy State = sso . In the RPR mode, one of the supervisor engines is active and operational, while the second supervisor engine is in the standby mode. Configuration on. Supervisor engine redundancy allows OIR of the redundant supervisor engine for maintenance. HSRP is SSO aware on interfaces that are configured for HSRP and the standby RP is automatically reset. 1. The mode sso command can be entered only from within redundancy configuration mode. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. SSO pair connected to upstream VSS pair with split links and RP connected back to back. configure redundancy unit secondary. What is redundancy mode SSO? 2. 56. Step 6. Wrong handling can happen and. Step 3. end. RTR02-Sec#sh redundancy. The mode sso command can be entered only from within redundancy configuration mode. Check if There is Sufficient Available Memory on Flash 4. Check if There is Sufficient Available Memory on Flash 4. Enters redundancy configuration mode. 05-25-2012 08:56 AM - edited 03-07-2019 06:54 AM. SSO pair connected to upstream VSS pair with RP connected via the upstream set of switches in order to detect gateway down scenario. On primary controller, disable SSO using the command: Config redundancy mode disable The Active and Standby WLCs. 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 =. The stack operates in the 1:1 stack mode with the specified active or standby after reboot. 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. 2(20)EWA and later releases. The feature is enabled by default when the redundancy mode of operation is set to SSO. To do this, we will use “redundancy” command under global configuration mode and after that we will select mode with “mode sso” command. The mode sso command can be entered only from within redundancy configuration mode. Cisco 3504 Controllers. Once you get them on the same version, you will be able to get to SSO. SSO is supported in Cisco IOS Release 12. %HA-5-MODE:Operating mode is sso, configured mode is 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. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. The default mode for the Cisco uBR10012 universal broadband router is SSO. SSO also synchronizes critical state information. Note Use the show redundancy and show issu state commands throughout the upgrade to verify the status of the upgrade. Example: Device(config-red)# mode sso: Configures stateful switchover. The documentation set for this product strives to use bias-free language. 2. With RPR+, the redundant supervisor engine is fully initialized and configured, which shortens the. 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. Both RPs must run the same Cisco IOS image. Enters redundancy configuration mode. SSO provides RP redundancy by establishing one of the RPs as the active processor and the other RP as the standby processor. In software, supervisor engine redundancy is enabled by running the redundant supervisor engine in route processor redundancy (RPR) or stateful switchover (SSO) operating mode. Example: Device(config-red)# mode sso: Configures stateful switchover. Usage Guidelines. Redundancy may not work due to differences between the Cisco IOS. Step 4. 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 = Disabled Communications = Down. 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. 56. 255. SSO is supported in Cisco IOS Release 12. Example: Device(config-red)# mode sso: Configures stateful switchover. mode sso. 3. 2. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Both RPs are running the same Cisco. ※ このドキュメントでは AireOS 8. Step 5. 48. Redundancy may not work due to differences between the Cisco IOS releases. 0(22)S. Connect the network ports. Sets the redundancy configuration mode to SSO on both the active and standby RP. Enters configuration mode. SSO HSRP. My Secondary Switch is in disable state despite its in SSO mode. 2(20)EWA 以降のリリースでサポートされます。. The switch is supports route processor redundancy (RPR). I tried to switch on SSO mode on both wlc 5520. The VSS runs stateful switchover (SSO) between the VSS active and standby supervisor engines (see Figure 5. Step 2. Note After configuring SSO mode, the standby RP will automatically reset. 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. 2 (11)BC3. Configures SSO. # redundancy Switch(config-red)# mode sso Switch(config-red)# end Switch# show redundancy states my state = 13 -ACTIVE peer. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Enters redundancy configuration mode. 1. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. Exits redundancy configuration mode and returns the switch to privileged EXEC mode. Complete these steps in order to check the redundancy status: a. Redundancy may not work due to differences between the Cisco IOS releases. Enters global configuration mode. mode sso. Enters redundancy configuration mode. SSO is supported in Cisco IOS Release 12. Verifies that SSO is enabled. 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: mode sso Example: Switch (config-red)# mode sso Configures SSO. Upgrade the current active Supervisor. 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. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. A critical component of SSO and Cisco HA technology is the cluster control manager (CCM) that manages session re-creation on the standby processor. SSO is supported in Cisco IOS Release 12. The available power is the total power capacity of all power supplies. 130，稱為WLC1; 第二個地址IP地址10. Step 4. Redundancy may not work due to differences between the Cisco IOS releases. . +1 is the power supply module reserved for redundancy. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. Step 6. 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 =. Exits redundancy configuration mode and returns the switch to privileged EXEC mode. 除了這些IP地址外. Switch(config)# redundancy Switch(config-red)# mode sso Switch(config-red)# end Switch# show redundancy Redundant System Information : -----Available system uptime = 2 days, 2 hours, 39 minutes Switchovers system experienced = 0. Example: Device(config-red)# mode sso: Configures stateful switchover. Step 4. x [S2C-build-v16x_throttle-4064-/. Step 5: exit. Note SSO is not supported if the IOS-XE software is running in the LAN Base mode. config redundancy mode sso on primary. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. Step 4: show running-config Example: Enters redundancy configuration mode. On the standby. The redundancy explained in this article is 1:1, which means that one of the units operates in Active state while the other operates in Hot Standby state. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. The. Verifies that SSO is enabled. Step 6. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. Sets the redundancy configuration mode to SSO on both the active and standby RP. The software will prompt to reboot the Standby Supervisor (in slot 5) - confirm to reboot - exit configuration mode and save the configuration. In case of n+1 redundancy, access points are configured with primary, secondary, and tertiary controllers. 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. Step 4. (NSF) with a stateful switchover (SSO) when a supervisor-level failure occurs. client count = 109 . Check if Auto-Boot is Enabled 6. 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. Route Processor Redundancy is supported only on routers that support dual RSPs. Switch# show running-config. 2(20)EWA and later releases. Maintenance Mode = Disabled. Step 5. When a standby supervisor engine runs in SSO mode, the standby supervisor engine starts up in a fully-initialized state and synchronizes with the persistent configuration and the running configuration of the active supervisor engine. In Cisco Wireless LAN Controllers, redundancy is achieved in two ways— n+1 and AP SSO redundancy. Enters redundancy configuration mode. 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. You usually will find the two redundancy terms together, as "SRM with SSO. This feature is supported on all controller models supporting HA SSO feature: Cisco 8500 Series Controllers . Router (config)# redundancy. Configured Redundancy Mode = sso Operating Redundancy Mode = sso Maintenance Mode = Disabled Communications = Up. SSO redundancy mode provides all the functionality of RPR+ mode in that IOS software is fully initialized on the both RSPs. Router# configure terminal. (Operational) = sso Redundancy Mode. Operating Redundancy Mode = sso Maintenance Mode = Disabled Communications = Up Current Processor Information :----- Active Location = slot 2. What is redundancy mode Cisco? 4. Step 5: Enabling SSO reboots the. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. 61 /24. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. 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. 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. To enter the redundancy main configuration submode and enable the standby switch, use the main-cpu command in redundancy configuration mode. Step 6. Usage Guidelines. Router(config-red)# end. 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. The Cisco Nexus 9504, 9508, 9516,. NSF Operation. End with CNTL/Z. The system has experienced 4 switchovers. This example shows how to set the redundancy mode to SSO: Device (config)# redundancy Device (config-red)# mode sso Device (config. The show redundancy and show issu state commands verify that redundancy mode is enabled and that SSO and NSF are configured. 2(20)EWA and later releases. This feature is supported on all controller models supporting HA SSO feature: Cisco 8500 Series Controllers . When this command is entered, the standby switch is reloaded and begins to work in SSO mode. If active supervisor fails, then standby sup will perform following in sequence: Layer3 protocol initialized, routing tables. Configurations. 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. Exits redundancy configuration mode and returns the switch to privileged EXEC mode. Example: Device#. Step 2: mode sso Example: Switch (config-red)# mode sso Configures SSO. Step 7: end. . 0. In an HA environment using FlexConnect locally switched clients, the client information might not show the username. Active WLC 上で SSO の mode を disable にする. Router# show redundancy states. • With a Supervisor Engine 720, if all the installed switching modules have DFCs, enter the fabric switching-mode allow dcef-only command to disable the Ethernet ports. SSO HSRP alters the behavior of HSRP when a device with redundant Route Processors (RPs) is configured for stateful switchover (SSO) redundancy mode. x. Step 5. Cat-6509#show redundancy Redundant System Information : ----- Available system uptime = 10 hours, 12 minutes Switchovers system experienced = 1 Standby failures = 1 Last switchover reason = user initiated Hardware Mode = Duplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso!--- This verifies that. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to SSO. Step 5. To set the redundancy mode to stateful switchover (SSO), use the mode sso command in redundancy configuration mode. Cisco Public HA SSO behavior Redundancy Port (RP) BRKEWN-2846 19 Redundancy Port (RP) • Syncs configuration and AP/Client databases between Active and Standby • Monitors status of the chassis • Possible single point of. 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. 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 state of these features is preserved between both the active and standby. (Cisco Controller) >show redundancy summary. 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 2 Router(config-red)# mode sso Configures SSO. Communications = Up. x. Router# copy running-config. Step 5: Enabling SSO reboots the controllers to negotiate the HA role as per the configuration performed. Stateful Switchover enabled routers will always checkpoint line card. The mode sso command can be entered only from within redundancy configuration 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 2. 2. Displays the operating. Returns to EXEC mode.