2(20)EWA 以降のリリースでサポートされます。. 10. 0. 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. Configured Redundancy Mode = RPR. x. [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. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Router (config)# redundancy. This command has no. Enters redundancy configuration 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. † Software. (NSF) with a stateful switchover (SSO) when a supervisor-level failure occurs. 3. 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. 2(20)EWA and later releases. Step 5 . Step 5: Enabling SSO reboots the controllers to negotiate the HA role as per the configuration performed. ※ このドキュメントでは AireOS 8. The ISSU feature allows deployment of new features, hardware, services, and maintenance fixes in a procedure that is seamless to end users. Configures SSO. Example: Device(config-red)# mode sso: Configures stateful switchover. Exits redundancy configuration mode and returns the switch to privileged EXEC mode. The mode sso command can be entered only from within redundancy configuration mode. Example: Router(config)# router bgp 1000Example: Enabling 1:1 Redundancy Stack Mode; Example: Disabling 1:1 Redundancy; Example: Enabling 1:1 Redundancy Stack 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. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. 3 allows the AP to establish CAPWAP tunnel with Active WLC and share mirror copy of AP database with Standby WLC. Step 5. 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. redundancy Router(config)# redundancy. 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. Refer to the Catalyst 4500 Series Switch Cisco IOS Command Reference and related publications. Usage Guidelines. Connect redundancy ports together on primary/secondary. x. Step 4. In our example we are using the following IP addresses: WLC Active. Stateful Switchover enabled routers will always checkpoint line card. Switchover Process Restrictions † If any changes to the fabric configuration happen simultaneously with an RP switchover, the chassis is reset and all line cards are reset. mode sso. Usage Guidelines. This feature is not supported on the C9500-12Q, C9500-16X, C9500-24Q, C9500-40X models of the Cisco Catalyst 9500 Series Switches. mode sso. %HA-5-MODE:Operating mode is sso, configured mode is sso. mode sso. 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. Supervisor Module Redundancy. SSO redundancy mode provides all the functionality of RPR+ mode in that IOS software is fully initialized on the both RSPs. 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 = 23 hours, 52 minutes Image Version = Cisco IOS Software [Fuji], Catalyst L3 Switch Software. If active supervisor fails, then standby sup will perform following in sequence: Layer3 protocol initialized, routing tables. Router(config-red)# end. (Optional) Ensure network connectivity. SSO Operation. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. You can configure an n+1 redundant mode. Redundant System Information :----- Available system uptime = 44 weeks, 2 days, 6 hours, 12 minutes. Learn more about how Cisco is using Inclusive Language. Operating Redundancy Mode = RPR. restart the Wireless controller in maintenance mode. To reload a single supervisor in the Quad-Supervisor setup enter the hw-module switch switch-number subslot subslot-number oir power-cycle command in privileged. The standby will sync its configuration from. 0. mode sso. 2(20)EWA and later releases. 2. 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, SSO3) Issue the reset system. Maintenance Mode = Disabled. Usage Guidelines. 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. 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. And it has to be Layer 2 between the 2 RPs, so either directy connected or through a VLAN. From Cisco IOS XE Amsterdam 17. Redundancy may not work due to differences between the Cisco. 1. Step 4: mode sso. Sets the redundancy configuration mode to SSO on both the active and standby RP. The mode sso command can be entered only from within redundancy configuration mode. SSO pair connected to upstream VSS pair with split links and RP connected back to back. Enters redundancy configuration mode. We will definitely upgrade are fus code. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. In Cisco Wireless LAN Controllers, high availability is achieved with redundancy. Enters redundancy configuration mode. Note Enabling SSO initiates a controller reboot. The following example displays verification that the system is in SSO mode and that slot A—RP A is the active R, and slot B—RP B is the standby RP. Redundancy may not work due to differences between the Cisco IOS releases. 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. Sets the redundancy configuration mode to SSO on both the active and standby RP. 254. The mode sso command can be entered only from within redundancy configuration mode. What is SSO switchover? 5. When an RP is active and the other RP is standby, SSO enables the standby RP to take over if the active RP fails. 6. 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. When this command is entered, the standby supervisor module is reloaded and begins to work in SSO 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. Reason: Software version. Example: Device(config-red)# mode sso: Configures stateful switchover. Go to solution. Step 2 Enter the redundancy config-sync ignore mismatched-commands EXEC command at the active standby supervisor engine. x [S2C-build-v16x_throttle-4064-/. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. If a switch is configured for SSO mode, then stand-by supervisor engine stops at " FIB table synchronization". Step 5. Step 4: mode sso. When this command is entered, the standby switch is reloaded and begins to work in SSO 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. Enters redundancy configuration mode. Step 3. Step 6. Returns to EXEC mode. Operating Redundancy Mode = sso. When this command is entered, the standby switch is reloaded and begins to work in SSO 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. I try to setup HA with SSO with 2x WLC 5520 version 8. Step 3. client count = 109 . Step 4. Exits redundancy configuration mode and returns the switch to privileged EXEC mode. Communications = Up. Redundancy may not work due to differences between the Cisco IOS. A router in SSO redundancy mode checkpoints Layer 2 protocol states and line card operation. 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. Reason: Software version. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. Step 2: mode sso. Verifies that SSO is enabled. In software, supervisor engine redundancy is enabled by running the redundant supervisor engine in route processor redundancy (RPR) or stateful switchover (SSO) operating. Example: Device(config-red)# exit: Exits redundancy. 63 /22. Maintenance Mode = Disabled. Example: Device(config-red)# exit: Exits redundancy. 2. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to SSO. @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. 12. Check if There is Sufficient Available Memory on Flash 4. SSO is supported in Cisco IOS Release 12. Copy the New Image to be Upgraded / Downgraded ISSU Workflows - Actual Upgrade One Step Work Flow Three Step Work Flow Post ISSU Checklist Action. The sku on the box for the HA should have this part number: air-ct5508-ha-k9. On primary controller, disable SSO using the command: Config redundancy mode disable The Active and Standby WLCs. Redundancy Mode (Operational) = sso . Exits redundancy configuration mode and returns the switch to privileged EXEC mode. Communications = Up . 2(20)EWA and later releases. Redundancy may not work due to differences between the Cisco IOS releases. 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. Local State = ACTIVE. 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. Example: Device (config-red)# end Controller # 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. 151. 2(20)EWA and later releases. 2. Step 3 Router# show running-config Verifies that SSO is enabled. 2(20)EWA and later releases. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. San Jose, California 95134-1706. 0. 0. The mode sso command can be entered only from within redundancy configuration mode. This chapter describes how to configure supervisor engine redundancy using Cisco nonstop forwarding (NSF) with stateful switchover (SSO). Communications = Up. Step 4: mode sso. SSO pair connected to upstream VSS pair with RP connected via the upstream set of switches in order to detect gateway down scenario. This chapter describes how to configure supervisor engine redundancy using Cisco nonstop forwarding (NSF) with stateful switchover (SSO). Enters configuration mode. exit 6. 3 and 7. Note After configuring SSO mode, the standby RP will automatically reset. Standby failures = 0. 2(20)EWA and later releases. In Cisco Wireless LAN Controllers, high availability is achieved with redundancy. The Cisco Nexus 9504, 9508,. Switch-1(config)# platform hardware vsl pfc mode non-xl (Optional) Sets the PFC operating mode to PFC4 on Chassis A. Configures SSO. Hardware Mode = Duplex. 102. Note After configuring SSO mode, the standby RP will automatically reset. 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. 255. It is setup in the below settings but I am not running a pair of these switches. Router# configure terminal Router(config)# redundancy Router(config)# mode SSO Router(config)# exit Router# reload Stateful Switchover. Redundancy may not work due to differences between the Cisco IOS releases. ATM SSO is not configurable and runs by default on networking devices configured with ATM and Redundancy Mode SSO. 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. Step 5: exit. 3 255. while restarting the secondary WLC that was in maintenance mode, check the "Bulksync status" of redundancy summary in primary WLC and wait for until it turn as. Step 6. 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. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. My routers only show redundancy mode as none. 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. Configuring Route Processor Redundancy SSO Mode configure terminal redundancy mode sso main-cpu standby. Enters redundancy configuration mode. Operating Redundancy Mode = RPR. 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. 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. The processing of mirroring this information between route processors is known as checkpointing. 48. In an HA environment using FlexConnect locally switched clients, the client information might not show the username. Router# copy running-config startup-config %HA-5-MODE:Operating mode is sso, configured mode is sso. Enters redundancy configuration mode. 12. When we simulate a problem by powering off the Active Controller, the standby controller will reboot, all of our APs loose. Step 4. Check if Switches are in SSO Mode 5. 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. Standby failures = 3. 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 2: mode sso. The. Step 5. 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. Step 2. mode SSO 5. After rebooting the primary controller changed into Maintanence Mode. You usually will find the two redundancy terms together, as "SRM with SSO. . 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. Step 5. 131. (Cisco Controller) >show redundancy summary Redundancy Mode = SSO ENABLED Local State = ACTIVE Peer State = UNKNOWN - Communication Down. Sets the router in SSO redundancy mode. Example: Router(red-config)# mode sso: Sets the redundancy configuration mode to SSO. Step 4. Switch(config-red)# mode sso. 2. This example shows how to set the redundancy mode to SSO: Device (config)# redundancy Device (config-red)# mode sso Device (config. Example: Device(config-red)# mode sso: Configures stateful switchover. Enters redundancy configuration mode. Step 4 Router# show redundancy states Displays the operating redundancy mode. Operating Redundancy Mode = rpr. Router# copy running. The system has experienced 4 switchovers. Check if Auto-Boot is Enabled 6. 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. With NSF/SSO, peer networking devices do not experience routing flaps. 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. 5) Bring up only one Gig interface and try to access it. 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. Step 4. 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. config 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. In Cisco Wireless LAN Controllers, redundancy is achieved in two ways— n+1 and AP SSO redundancy. 39. Step 5. The first two octets are always 169. HSRP is SSO aware on interfaces that are configured for HSRP and the standby RP is automatically reset. Example: Device(config-red)# mode sso: Configures stateful switchover. There are two options for Cisco Wireless Controller redundancy solutions, either Backup Controllers or High Availability, depending on the firmware version of WLC's, failover time requirement, and budget. Redundancy may not work due to differences between the Cisco IOS. Image Version = Cisco IOS Software, Catalyst L3 Switch Software (CAT9K_IOSXE), Experimental Version 16. Example: Device (config-red)# mode sso: Configures SSO. Communications = Up . = 0 Last switchover reason = active unit removed Hardware Mode = Duplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso Maintenance Mode =. 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. Usage Guidelines. Active WLC 上で SSO の mode を disable にする. Copy the New Image to be Upgraded / Downgraded ISSU Workflows - Actual Upgrade One Step Work Flow Three Step Work Flow Post ISSU Checklist Action. 9. mode SSO Router(config)# mode SSO. The default mode for the Cisco uBR10012 universal broadband router is SSO. In the RPR mode, one of the supervisor engines is active and operational, while the second supervisor engine is in the standby mode. Configure SSO redundancy mode at this time. Catalyst 4500/4500-X series switches' VSS does not support route processor redundancy (RPR) mode. SSO is supported in Cisco IOS Release 12. 130，称为WLC1; 第二个地址为IP地址10. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. 2(20)EWA and later releases. The mode sso command can be entered only from within redundancy configuration mode. Step 5. 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. mode sso. There are three modes in redundancy for the standby supervisor when native Cisco IOS Software is used: RPR-The show module command displays Cold. n+1 redundant Mode—n number of power supply modules are active (n can be one to seven pput ower supply modules). Operating Redundancy Mode = sso Maintenance Mode = Disabled Communications = Up Current Processor Information :-----Active Location = Switch 2 Current Software state =. Example: Device(config-red)# mode sso: Configures stateful switchover. Step 6. Step 3: end Example: Switch (config-red)# end Returns to EXEC 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 switch is. 1. 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. 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. 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. When this command is entered, the redundant supervisor engine is reloaded and begins to work 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. 2(20)EWA and later releases. Step 2: mode sso Example: Switch (config-red)# mode sso Configures SSO. Redundancy may not work due to differences between the Cisco. 2(20)EWA and later releases. Inbox redundancy with Stateful Switchover (SSO) mechanism provides redundancy within the same device. Image Version = Cisco IOS Software, Catalyst L3 Switch Software (CAT9K_IOSXE),Experimental Version 16. For WLC 2, go to Console connection: Note Once SSO is enabled, the Standby WLC can be accessed via console connection or via SSH on the service port and on the redundant management interface. Redundancy may not work due to differences between the Cisco IOS releases. HA_CONFIG_SYNC-6-BULK_CFGSYNC_SUCCEED: Bulk Sync succeeded Switchover Process Restrictions. 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. Connect the network ports. Step 6. 2016-10-12 10:10 AM 2017-09-01 03:01 AM 更新. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. redundancy Router(config)# redundancy. To disable Cisco StackWise Virtual, use the no form of this command. There are three modes in redundancy for the standby supervisor when native Cisco IOS Software is used: RPR-The show module command displays Cold. Step 3: end. The processing of mirroring this information between route processors is known as checkpointing. Step 5. ホット スタンバイ WLC の設定. 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. show redundancy >>>>>> check here for mode you have configured. 0. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. The state of these features is preserved between both the active and standby. Note Use the show redundancy and show issu state commands throughout the upgrade to verify the status of the upgrade. Configures SSO. SSO checkpointing is the process of mirroring information between RPs. In Cisco Wireless LAN Controllers, redundancy is achieved in two ways— n+1 and AP SSO redundancy. Router(config-red)# end. 4. SSO HSRP alters the behavior of HSRP when a device with redundant Route Processors (RPs) is configured for stateful switchover (SSO) redundancy mode. Step 8: exit. • 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. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. Step 3:. Check the Boot Mode 3. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to SSO. 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. Redundancy may not work due to differences between the Cisco IOS releases. Router(config-red)# end. 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. Catalyst 4500 series switches allow a standby supervisor engine to take over if the active supervisor engine fails. If you perform an online insertion and removal (OIR) of the module, the switch resets during the stateful switchover and the. Step 4. SSO also synchronizes critical state information. End with CNTL/Z. 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. Since we couldnt afford downtime I rebooted standby controller that was in maintenance mode and it was able to boot in sso redundant mode. This feature is not supported on the C9500-12Q, C9500-16X, C9500-24Q, C9500-40X models of the Cisco Catalyst 9500 Series Switches. The Cisco RF Gateway 10 Supervisor Engine 7-E uplink ports are not recommended for data or management traffic in Supervisor Redundancy Mode. Current Processor Information :----- Active Location = slot 1 Current Software state = ACTIVE. Step 1. main-cpu. 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. Step 5: exit. Example: Device(config-red)# mode sso: Configures stateful switchover. running with image version 8. Redundancy may not work due to differences between the Cisco IOS releases. Redundancy may not work due to differences between the Cisco. Step 4: mode sso. The mode sso command can be entered only from within redundancy configuration mode. mode sso. For more information, see Chapter 1, “Route Processor Redundancy (RPR). Enters redundancy configuration mode. end. Step 2: mode sso Example: Switch (config-red)# mode sso Configures SSO. Step 5. Step 6: mode sso. 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). If a VSS does not meet the requirements for SSO redundancy, it will be incapable of establishing a relationship with the peer switch. Configured Redundancy Mode = sso Operating Redundancy Mode = sso Maintenance Mode = Disabled Communications = Up. 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. 39. 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. The processing of mirroring this information between route processors is known as checkpointing.