Enters redundancy configuration mode. 255 ! interface GigabitEthernet1/0/4 ip vrf forwarding vpn1 ip address 10. 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. Example: Router(config)# end. Step 4. I try to setup HA with SSO with 2x WLC 5520 version 8. 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. Check the Boot Mode 3. Command Modes. Example: Router(red-config)# exit: Exits to global configuration mode. Step 5. 2(20)EWA and later releases. . Redundancy may not work due to differences between the Cisco. Step 2: 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. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. Returns to EXEC mode. Hardware Mode = Duplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso. Connected to network with 4x10G links. 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. SSO pair connected to upstream VSS pair with RP connected via the upstream set of switches in order to detect gateway down scenario. 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. 1 onwards, the method to configure the gateway IP. A critical component of SSO and Cisco HA technology is the cluster control manager (CCM) that manages session re-creation on the standby processor. 3. If you perform an online insertion and removal (OIR) of the module, the switch resets during the. Step 3. For more information, see Chapter 1, “Route Processor Redundancy (RPR). exit Router(config)# exit. Step 5. Step 4: mode sso. Redundancy may not work due to differences between the Cisco IOS releases. 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. >> configure the IP of the redundancy management interface with: config interface address redundancy-management <new IP > <new IP for the peer redundancy management interface> This needs to be done on both of them using the console connection and then enable the SSO again as: >> config redundancy mode sso. end. Sets the redundancy configuration mode to SSO on both the active and standby RP. (Optional) Ensure network. 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 = 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. config redundancy mode sso. Step 3: 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 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. HSRP is SSO aware on interfaces that are configured for HSRP and the standby RP is automatically reset. 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. x. 12. This mode does not provide power redundancy. In case of n+1 redundancy, access points are configured with primary, secondary, and tertiary controllers. Redundancy Mode Support in Cisco IOS Releases Platform Mode 12. Refer to the Catalyst 4500 Series Switch Cisco IOS Command Reference and related publications. Reason: Software version. SSO is supported in Cisco IOS Release 12. 0(22)S. 2(20)EWA and later releases. Maintenance Mode = Disabled . @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. I am seeing the SSO is established. Check the Current ISSU and Install States 7. With NSF/SSO, peer networking devices do not experience routing flaps. end. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. WLC のステータスや設定を確認する. 2(20)EWA and later releases. Router# show redundancy states. Follow these guidelines when configuring your system to SSO mode: You must use identical Cisco IOS images on the to support SSO mode. I Think that the righ status of SSO Configuration must be like: Hardware Mode = Duplex. client count = 109 . 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. Router# copy running-config. . Redundancy may not work due to differences between the Cisco IOS releases. Description. The routing protocols have been enhanced with NSF-capability and. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Example: Device(config-red)# mode sso: Configures stateful switchover. SSO is supported in Cisco IOS Release 12. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. 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 on both supervisor engines, which ensures that all modules are operating in dCEF mode and simplifies switchover to the redundant supervisor engine. Uptime in current state = 4 days, 21 hours, 27 minutesYes you need the RP in order to build SSO. 151. Step 5. 6) once you accessible check the Redundancy summary. When the controller works as a host for spanning tree, ensure that you configure portfast trunk in the uplink switch using. Router(config)# mode sso. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. Step 5. SSO は、Cisco IOS Release 12. 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. Note Enabling SSO initiates a controller reboot. IP-adres 10. restart the Wireless controller in maintenance mode. Operating Redundancy Mode = RPR. 2. Switch# show running-config. If the. SRM is inherent with SSO, which brings up the standby route processor. Redundancy Mode (Configured) = sso Redundancy State = sso Maintenance Mode = Disabled Manual Swact = enabled Communications = Up client count = 115Enters global configuration mode. redundancy mode sso ! ip cef distributed mpls ldp graceful-restart mpls label protocol ldp ip vrf vpn1 rd 100:1 route-target export 100:1 route-target import 100:1 no mpls aggregate-statistics ! interface Loopback0 ip address 10. Inbox redundancy with Stateful Switchover (SSO) mechanism provides redundancy within the same device. The DHCP high availability features are enabled by default when the redundancy mode of operation is set to SSO. When this command is entered, the redundant supervisor engine 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. The mode sso command can be entered only from within redundancy configuration mode. In case of n+1 redundancy, access points are configured with primary, secondary, and tertiary controllers. mode SSO Router(config)# mode SSO. Enters redundancy configuration mode. 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. Step 3. Step 3. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to privileged EXEC mode. The default mode for the Cisco 7304 router and Cisco 10000 series routers is SSO. Step 6. 10. Enter configuration commands, one per line. Step 5. The software will prompt to reboot the Standby Supervisor (in slot 5) - confirm to reboot - exit configuration mode and save the configuration. Enter configuration commands, one per line. Sets the redundancy configuration mode to SSO on both the active and standby RP. Cisco StackWise Virtual Redundancy. Step 5. In an HA environment using FlexConnect locally switched clients, the client information might not show the username. cisco Systems, Inc. Device(config-red)# mode sso: Configures stateful switchover. Note Recommended procedure for ROMMON upgrade of Supervisor in VSS Quad-Sup SSO (V4SO): Use the command upgrade rom-monitor to upgrade the ROMMON image, preference region/invalidate region on current active Supervisor. The SSO model monitors the health of the active controller via a redundant (HA) port. Router (config-red)# 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 3. 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. Configuring Cisco NSF with SSO • FindingFeatureInformation,page1 • PrerequisitesforNSFwithSSO,page1 • RestrictionsforNSFwithSSO,page2. SSO Dual-Route Processors and Cisco Nonstop Forwarding. mode sso. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. You can also manually initiate a switchover by entering the redundancy force switch-over command on the Cisco StackWise Virtual active supervisor in privileged EXEC mode. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. x（Catalyst 9200 スイッチ）コマンドリファレンス. Enters global configuration mode. Switch# show. configure interface address management 10. 5) Bring up only one Gig interface and try to access it. Enters redundancy configuration mode. The mode sso command can be entered only from within redundancy configuration mode. Router# show running-config. Enters redundancy configuration 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. Router(config-red)# end. 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 =. SSO is supported in Cisco IOS-XE Release 3. Example: Device(config-red)# mode sso: Configures stateful switchover. By default, the system synchronizes all system files, which is the typical setting for most applications. Enters redundancy configuration mode. In this CCNP ENCOR lesson, we will focus on this redundancy mechanism. 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. Configured Redundancy Mode = SSO. Redundancy may not work due to differences between the Cisco IOS. x [S2C-build-v16x_throttle-4064-/. Step 4: mode sso. Switch(config-red)# mode sso. Since we couldnt afford downtime I rebooted standby controller that was in maintenance mode and it was able to boot in sso redundant mode. redundancy Router(config)# redundancy. 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 =. Enters redundancy configuration mode. The NSF capability on Cisco Catalyst 9300 Series Switches can. SSO is supported in Cisco IOS Release 12. Step 4. SSO HSRP alters the behavior of HSRP when a device with redundant Route Processors (RPs) is configured for stateful switchover (SSO) redundancy mode. configure redundancy mode sso. Communications = Up. Step 4. (Cisco Controller) >show redundancy summary. 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. 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. Hardware Mode = Duplex. auto-sync standard. core-7606-01#show redundancy . hw-switch switch 1 logging onboard message level 3 redundancy mode sso The new High Availability (HA) feature (that is, AP SSO) set within the Cisco Unified Wireless Network software release version 7. SSO works with Cisco NSF, which helps reduce the switchover downtime on Layer 3. Cisco 3504 Controllers. 0. NSF Operation. 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. SSO is supported in Cisco IOS Release 12. Enters redundancy configuration mode. Example: Device(config-red)# mode sso: Configures stateful switchover. 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. end. Note After configuring SSO mode, the standby RP will automatically reset. 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. 255. Sw-4510R (config-red)#>redundancy Sw-4510R (config-red)#mode sso Changing to sso mode will. configure redundancy unit secondary. 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. 102. Enters redundancy configuration mode. Redundancy may not work due to differences between the Cisco. 0. When you configure the controller for HA SSO, the Cisco 600 Series OfficeExtend Access Points are not supported. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to privileged EXEC mode. Example: Device(config-red)# mode sso: Configures stateful switchover. ホット スタンバイ WLC の設定. Usage Guidelines. Exits redundancy configuration mode and returns the switch to privileged EXEC 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. Step 2. 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. Communications = Up. Step 3 Router# show running-config Verifies that SSO is enabled. 0. End with CNTL/Z. Step 2: mode sso Example: Switch (config-red)# mode sso Configures SSO. Step 7: mode sso. This mode utilizes two electrical grids, each one powering a half module within each power supply. Step 2. Redundancy-MGNT: 192. +1 is the power supply module reserved for redundancy. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to SSO. Route Processor Redundancy (RPR) refers to the provision of support for the redundancy feature. Step 4: show running-config Example:Enters redundancy configuration mode. 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. This command supports Route Processor Redundancy Plus (RPR+) with the Cisco uBR10012 router. To enable Cisco StackWise Virtual on a switch, use the stackwise-virtual command in the global configuration mode. 3. † 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. 39. A redundancy VLAN is connected to the redundant port on Cisco WiSM2 through the backplane. Redundancy may not work due to differences between the Cisco IOS releases. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. Step 5. 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. insrc-redundant. 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. Operating Redundancy Mode = sso. 第一個IP地址10. 3 and 7. Now if the HA unit is indeed an HA sku, then you don't need to have any license and all you have to do is enable secondary unit: config redundancy unit secondary. Cisco IOS XE Software, Version 17. SSO refers to the implementation of Cisco IOS software that allows applications and features to maintain a defined state between an active and standby RP. 39. 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. 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. 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. 56. Cisco 5500 Series WLCs . configure interface address redundancy-management 10. %HA-5-MODE:Operating mode is sso, configured mode is sso. 39. 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. Enabling SSO reboots the controllers to negotiate the HA role as per the configuration performed. 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. When the redundant supervisor engine is inserted, the active supervisor engine detects its presence, and the redundant supervisor engine boots into a partially-initialized state in RPR mode and a fully-initialized state in SSO mode. Router# copy running-config startup-config %HA-5-MODE:Operating mode is sso, configured mode is sso. Example: Device (config-red)# mode sso: Configures SSO. Configure SSO redundancy mode at this time. 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. 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. Hardware Mode = Simplex. It is not necessary to configure the IP address for the redundancy VLAN because the IP address is automatically generated. 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. Specify a standby slot, by entering the power redundancy-mode redundant n+1 standby-PSslot command. The mode sso command can be entered only from within redundancy configuration mode. Enters redundancy configuration mode. Switch-1(config)# platform hardware vsl pfc mode non-xl (Optional) Sets the PFC operating mode to PFC4 on Chassis A. Router(config)# mode sso. Both RPs must run the same Cisco IOS image. 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. Step 4. 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 =. Step 4 Router# show redundancy states Displays the operating redundancy mode. Verifies that SSO is enabled. First you can completely configure the first WLC as you wish. 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. 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. Router(config-red)# end. Check if Auto-Boot is Enabled 6. 2. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. The Broadband High Availability Stateful Switchover feature allows you to configure subscriber redundancy policies that tune the synchronization process. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. With NSF/SSO, peer networking devices do not experience routing flaps. Step 5. 2. Once you get them on the same version, you will be able to get to SSO. The New High Availability feature i. When you configure the controller for HA SSO, the Cisco 600 Series OfficeExtend Access Points are not supported. Supervisor engine redundancy allows OIR of the redundant supervisor engine for maintenance. 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. In software, supervisor engine redundancy is enabled by running the redundant supervisor engine in route processor redundancy (RPR) or stateful switchover (SSO) operating mode. Step 5. Configures SSO. Example: Device(config-red)# exit: Exits redundancy. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. With NSF/SSO, peer networking devices do not experience routing flaps. 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. Router(config)# redundancy. (RTU Evaluation License by now) - Network Connection beween the WLC5520: LAG. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Step 2. Here are the steps: Step 1 Clear the offending configuration (that caused an MCL) while the standby supervisor engine is in standby cold (RPR) state. Step 5: end. (Optional) Backup the Startup Config and Running Config files of the controllers. For more. Enters redundancy configuration mode. Step 7: 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. Redundancy may not work due to differences between the Cisco. mode sso. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. Step 2: mode sso . The Supervisor 7-E card has four uplink ports on its front panel. When this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. Usage Guidelines. (CSCec05612)Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide, 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. Step 5. end. When this command is entered, the standby switch is reloaded and begins to work in SSO 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. In software, supervisor engine redundancy is enabled by running the redundant supervisor engine in route processor redundancy (RPR) or stateful switchover (SSO) operating. SSO is supported in Cisco IOS Release 12. Configured Redundancy Mode = RPR. When this command is entered, the standby supervisor module is reloaded and begins to work in SSO mode. Example: Device(config-red)# end: Exits redundancy configuration mode and. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to SSO. Maintenance Mode = Disabled. • 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 on both supervisor engines, which ensures that all modules. n+1 redundant Mode—n number of power supply modules are active (n can be one to seven power supply modules). Note After configuring SSO mode, the standby RP will automatically reset. Enters redundancy configuration mode. Enters redundancy configuration mode. SSO pair connected to upstream VSS pair with split links and RP connected back to back. 61 /22. Step 3:. 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 system has experienced 4 switchovers. The device supports fault resistance by allowing a standby switch to take over if the active device becomes unavailable. Configuration Examples for DHCP High Availability. Note After configuring SSO mode, the standby RP will automatically reset. Enters redundancy configuration mode. Step 6. This step is complete when the chassis configuration is synchronized, as indicated by the Bulk sync succeeded message. Enters redundancy configuration mode. 39. In Cisco Wireless LAN Controllers, redundancy is achieved in two ways— n+1 and AP SSO redundancy. 59. ) To minimize down time during software changes on the supervisor engine, load the new image onEnters redundancy configuration mode. Switch(config-red)# end. show redundancy states. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to privileged EXEC mode. Router(config)# 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. end. Step 5. x [S2C-build-v16x_throttle-4064-/. • 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. Step 4. Step 4. Current Processor Information :----- Active Location = slot 1 Current Software state = ACTIVE. 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. 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. If active supervisor fails, then standby sup will perform following in sequence: Layer3 protocol initialized, routing tables. Cisco IOS XE Bengaluru 17. 0SG and later releases. 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 5:. Step 6: mode 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. 1. Redundancy may not work due to differences between the Cisco IOS. Before you begin the ISSU process, verify the redundancy mode for the system. 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. Redundant System Information :----- Available system uptime = 44 weeks, 2 days, 6 hours, 12 minutes. Note Enabling SSO initiates a controller reboot. 2. 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 4. Configures SSO. Check if There is Sufficient Available Memory on Flash 4. 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 =. exit 6. 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. SSO pair connected to upstream VSS pair with RP connected via the upstream set of switches in order to detect gateway down scenario. High availability SSO is setup and is working good. Redundancy may not work due to differences between the Cisco IOS. Enters redundancy configuration mode. Syntax Description. client_notification_TMR = 30000 milliseconds . The mode sso command can be entered only from within redundancy configuration mode.