Cisco redundancy mode sso. Connected to network with 4x10G links. Cisco redundancy mode sso

 
 Connected to network with 4x10G linksCisco redundancy mode sso  When this command is entered, the standby switch is reloaded and begins to work in SSO mode

The New High Availability feature i. Configures SSO. Example: Router(config-red)# mode sso. 2(20)EWA and later releases. hw-switch switch 1 logging onboard message level 3. 255. Step 2: mode sso Example: Switch (config-red)# mode sso Configures SSO. Step 5. Step 4. With RPR, the backup supervisor engine is partially initialized and. Configuration, forwarding, and state information are synchronized from the StackWise Virtual active switch to the redundant switch at startup, and whenever changes to the StackWise Virtual. The mode sso command can be entered only from within redundancy configuration mode. configure interface address management 10. Note Use the show redundancy and show issu state commands throughout the upgrade to verify the status of the upgrade. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Example: Device#. Note SSO is not supported if the IOS-XE software is running in the LAN Base mode. Step 5. Maintenance Mode = Disabled. Wrong handling can happen and. WLC のステータスや設定を確認する. Usage Guidelines. SSO-The show module command displays Hot. In SSO mode . 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. The configuration on the active controller is synched to the standby controller via the redundant port. Cisco 5520 wireless LAN controller has a failover RP Port. Current Processor Information :----- Active Location = slot 1 Current Software state = ACTIVE. On the Cisco 8500 Series Catalyst Edge Platform, Stateful Switchover (SSO) can be used to enable a second IOS process. Exits redundancy configuration mode and returns the switch to privileged EXEC 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. Cisco IOS XE Software, Version 17. The mode sso command can be entered only from within redundancy configuration mode. 2(20)EWA and later releases. 2 255. 130 pour le. 1 Disabling SSO on HA Pair 1 On primary controller, disable SSO using the command: config. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. 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. † 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. 150. The two supervisors operate in an active/standby capacity in which only one of the supervisor modules is active at any. Communications = Up. Redundancy Mode Support in Cisco IOS Releases Platform Mode 12. 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). Cisco 3504 WLCs. Router(config)# redundancy. end. Uptime in current state = 4 days, 21 hours, 27 minutesYes you need the RP in order to build SSO. Redundancy may not work due to differences between the Cisco IOS releases. e. 48. If the command is not found in. Example: Device#. Step 5: exit. x. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. To enter the redundancy main configuration submode and enable the standby switch, use the main-cpu command in redundancy configuration mode. Information About Redundancy. 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 =. 3. Enters redundancy configuration mode. Redundancy Mode (Operational) = sso . mode sso. SSO HSRP. If you perform an online insertion and removal (OIR) of the module, the switch resets during the. Example: Device(config-red)# mode sso: Configures stateful switchover. In our example we are using the following IP addresses: WLC Active. 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. Cisco 3504 Controllers. SSO also synchronizes critical state information. main. If it is in ROMMON, try boot with manual "boot" command. The stack operates in the 1:1 stack mode with the specified active or standby after reboot. 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 software has set the. SSO is supported in Cisco IOS Release 12. Router(config-red)# mode sso. I performed a failover test (by executing command "redundancy force-switchover" and after the standby controller rebooted, HA seems to no longer be working: From active controller. 08. For Enterprise Services or IP Base mode, use ISSU to upgrade software for both RPR and SSO redundant mode. Switch# show. Redundancy may not work due to differences between the Cisco IOS releases. SSO works with Cisco NSF, which helps reduce the switchover downtime on Layer 3. If active supervisor fails, then standby sup will perform following in sequence: Layer3 protocol initialized, routing tables. end. Step 5:. = SSO Redundancy Mode (Configured) = SSO Redundancy State = Non Redundant Manual Swact = disabled (system is simplex (no peer unit)) Communications = Down Reason:. Switch# show redundancy states. 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. When this command is entered, the standby switch is reloaded and begins to work in SSO mode. Configures SSO. Operating Redundancy Mode = sso Maintenance Mode = Disabled Communications = Up Current Processor Information :-----Active Location = Switch 2 Current Software state =. Active WLC 上で SSO の mode を disable にする. 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. Example: Device (config-red)# mode sso: Configures 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. If you perform an online insertion and removal (OIR) of the module, the switch resets during the stateful switchover and the. 56. The show redundancy and show issu state commands verify that redundancy mode is enabled and that SSO and NSF are configured. 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. 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. end. And it has to be Layer 2 between the 2 RPs, so either directy connected or through a VLAN. Configuring Route Processor Redundancy SSO Mode configure terminal redundancy mode sso main-cpu standby. 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. Configured Redundancy. This step is complete when the chassis configuration is synchronized, as indicated by the Bulk sync succeeded message. Step 5: exit. Router(config-red)# end. Switch(config-red)# end. Step 6 . 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. 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. 12. 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 =. 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. Step 5. Enters redundancy configuration mode. Redundancy may not work due to differences between the Cisco. This feature is supported on all controller models supporting HA SSO feature: Cisco 8500 Series Controllers . insrc-redundant. 4) Once WLC is back verify the Boot image version is matching with the Primary. %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. End with CNTL/Z. Enters redundancy configuration mode. Configures SSO. This made the standby WLC to go into maintenance 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. Step 2: mode sso . This chapter consists of these sections:. mode SSO 5. Configurations. Example: Device(config-red)# mode sso: Configures stateful switchover. My Secondary Switch is in disable state despite its in SSO mode. 2(20)EWA and later releases. = Non-redundant Redundancy Mode (Configured) = sso Redundancy State = Non. 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. Once you get them on the same version, you will be able to get to SSO. Enters redundancy configuration mode. The software upgrade procedure supported by supervisor engine redundancy allows you to reload the Cisco IOS software image on the redundant supervisor engine, and once complete, reload the active supervisor engine once. Step 2. 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. Hardware Mode = Duplex. Step 5. 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. exit Router(config)# exit. Enters redundancy configuration mode. 48. Configures SSO. main-cpu. Enters redundancy configuration mode. ) To minimize down time during software changes on the supervisor engine, load the new image onEnters redundancy configuration mode. mode sso. This mode does not provide power redundancy. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. When you configure the controller for HA SSO, the Cisco 600 Series OfficeExtend Access Points are not supported. 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. x [S2C-build-v16x_throttle-4064-/. Example: Device(config-red)# mode sso: Enables the redundancy mode of operation to 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. Exits redundancy configuration mode and returns the switch to privileged EXEC mode. All unsaved configuration will be saved. 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. Cisco Employee. 2. You can use the switch switch-number role command to set the active and standby switch in 1:1 stack mode. 170 West Tasman Drive. The active pseudowire. While implementing Nonstop Forwarding (NSF) technology in systems using SSO. 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 this command is entered, the redundant supervisor engine is reloaded and begins to work in SSO mode. Step 2 Router(config-red)# mode sso Configures SSO. Redundancy may not work due to differences between the Cisco IOS releases. after reboot ASR can used single processer but, when I show redundancy configure still mode sso I used in config t and redundancy and default-exit and enter and save non reboot after then show config again config in redundacy mode none Bias-Free Language. end. Step 4. 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. exit 6. show redundancy states. Operating Redundancy Mode = sso. 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. Image Version = Cisco IOS Software, IOS-XE Software, Catalyst 3 850 L3 Switch Software (CAT3850-UNIVERSALK9-M), Version 03. 2(20)EWA and later releases. Step 4. Usage Guidelines. 1 onwards, the method to configure the gateway IP. The mode sso command can be entered only from within 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. SSO is supported in Cisco IOS Release 12. redundancy Router(config)# redundancy. Redundant System Information :----- Available system uptime = 44 weeks, 2 days, 6 hours, 12 minutes. Redundancy may not work due to differences between the Cisco IOS. Example: Device(config-red)# mode sso: Configures stateful switchover. Step 6. We were testing a WLC HA Pair failure scenario wherein we removed the RP port connection from Active WLC. Wrong handling can happen and. Step 5. On the standby controller, re-enter the correct IP addresses corresponding to the management and dynamic interfaces. 39. LACP and PAGP is not supported in HA mode in releases until, and including, Cisco IOS XE Gibraltar 16. 4. 10. 12. Step 5:. end. Cisco NSF works with the SSO feature. SSO Dual-Route Processors and Cisco Nonstop Forwarding. (CSCec05612)Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide, Release 12. 2. When the controller works as a host for spanning tree, ensure that you configure portfast trunk in the uplink switch using. x. Redundancy Mode (Operational) = sso Redundancy Mode (Configured) = sso Redundancy State = sso Maintenance Mode = Disabled Manual Swact = enabled Communications = Up. What can be the reason. Step 5: Enabling SSO reboots the controllers to negotiate the HA role as per the configuration performed. Step 6. 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 =. mode SSO Router(config)# mode SSO. Hardware Mode = Duplex Configured Redundancy Mode = sso Operating Redundancy Mode = sso. 4. Verifies that SSO is enabled. x(Catalyst 9200 スイッチ)コマンドリファレンス. mode sso. 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. 2 (11)BC3. Initiate a switchover using the command redundancy force-switchover. Step 2. 2. SSO is supported in Cisco IOS Release 12. Switch# show running-config. Book Contents Book Contents. 12. 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. SRM is inherent with SSO, which brings up the standby route processor. ※ このドキュメントでは AireOS 8. 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 3: end . Enters redundancy configuration mode. 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. their Capwap tunnel, APs and clients get disconnected. 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. (Optional) Backup the Startup Config and Running Config files of the controllers. 3. SSO Operation. Example: Device(config-red)# end: Exits redundancy configuration mode and. Route Processor Redundancy is supported only on routers that support dual RSPs. Step 4. Once you get them on the same version, you will be able to get to SSO. 147 as the Redundancy Management IP and controller2 with 9. Step 4. 39. Active WLC 上で SSO の mode を disable にする. Communications = Up . 131. 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. Redundancy Mode (Configured) = sso . #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. Redundancy may not work due to differences between the Cisco. Step 3. In case of n+1 redundancy, access points are configured with primary, secondary, and tertiary controllers. The first two octets are always 169. In Cisco Wireless LAN Controllers, high availability is achieved with redundancy. Redundancy may not work due to differences between the Cisco IOS releases. Heres the redundancy cfg: redundancy. Router(config-red)# end. client_notification_TMR = 30000 milliseconds . 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. Standby failures = 3. Note Enabling SSO initiates a controller reboot. Example: Router(config)# exit Example: Router # Enters redundancy configuration mode. SSO-The show module command displays Hot. In software, supervisor engine redundancy is enabled by running the redundant supervisor engine in route processor redundancy (RPR) or stateful switchover (SSO) operating mode. 5. Step 4: mode SSO Example: Router(config)# mode SSO Configures SSO. mode sso. If peer unit's management and/or redundancy management entries are present as mobility members please remove them before enabling redundancy. In specific Cisco networking devices that support dual RPs, SSO takes advantage of RP redundancy to increase network availability. 255. redundancy mode sso. We have an SSO HA implementation with 2x 5520 (both AIR-CT5520-K9), software version 8. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. 101. CiscoStackWiseVirtualRedundancy 15 SSORedundancy 15 NonstopForwarding 16 MultichassisEtherChannels 16 MECMinimumLatencyLoadBalancing 16 MECFailureScenarios 17. Manual Swact = enabled . SSO pair connected to upstream VSS pair with split links and RP connected back to back. 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. 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. This mode utilizes two electrical grids, each one powering a half module within each power supply. 6. 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. The processing of mirroring this information between route processors is known as checkpointing. Enters redundancy configuration mode. Step 5. Redundancy may not work due to differences between the Cisco IOS releases. Check the Current ISSU and Install States 7. Step 1. You usually will find the two redundancy terms together, as "SRM with SSO. Follow these guidelines when configuring your system to SSO mode: You must use identical Cisco IOS images on the to support SSO mode. 90. config redundancy mode sso. SSO is supported in Cisco IOS Release 12. restart the Wireless controller in maintenance mode. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. configure redundancy unit secondary. 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. Catalyst 4500/4500-X series switches' VSS does not support route processor redundancy (RPR) mode. 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. Switch# show running-config. 0. 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. 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. Device(config-red)# mode sso: Configures stateful switchover. 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 2: mode sso. 2(20)EWA and later releases. The ISSU feature allows deployment of new features, hardware, services, and maintenance fixes in a procedure that is seamless to end users. 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. Router# configure terminal. 56. = Non-redundant Redundancy Mode (Configured) = sso Redundancy State = Non Redundant. 0SG and later releases. Configured Redundancy Mode = sso Operating Redundancy Mode = sso Maintenance Mode = Disabled Communications = Up. 2(20)EWA and later releases. The SSO model monitors the health of the active controller via a redundant (HA) port. 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. 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. 130,称为WLC1; 第二个地址为IP地址10. Redundancy may not work due to differences between the Cisco IOS releases. Step 4: mode sso. Router(config)# mode sso. 39. NSF Operation. If you perform an online insertion and removal (OIR) of the module, the switch resets during the. RPR+-The show module command displays Warm. end. Step 6. Step 4. Router# copy running-config. SSO functions in networking devices (usually edge devices) that support dual RPs. you then add the SSO redundancy commands on the active supervisor and you can insert the prepared new supervisor. Command Modes. Example: Device(config-red)# mode sso: Configures stateful switchover. Example: Device (config-red)# mode sso: Configures SSO. Note Enabling SSO initiates a controller reboot. 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. >> 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. The DHCP high availability features are enabled by default when the redundancy mode of operation is set to SSO. Verifies that SSO is enabled. config redundancy mode sso. Step 5. When you configure the controller for HA SSO, the Cisco 600 Series OfficeExtend Access Points are not supported. Example: Device(config-red)# mode sso: Configures stateful switchover. RTR02-Sec#sh redundancy. Enters redundancy configuration mode. 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. Switchovers system experienced = 0. HSRP is SSO aware on interfaces that are configured for HSRP and the standby RP is automatically reset. 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. (RTU Evaluation License by now) - Network Connection beween the WLC5520: LAG. In this CCNP ENCOR lesson, we will focus on this redundancy mechanism. Step 4: show running-config Example: Router# show redundancy Operating mode is sso redundancy mode sso hw-module slot 6 image disk0:rsp-pv-mz hw-module slot 7 image disk0:rsp-pv-mz Active in slot 6 Standby in slot 7 The system total uptime since last reboot is 2 weeks, 23 hours 41 minutes. Router(config-red)# mode sso. I Think that the righ status of SSO Configuration must be like: Hardware Mode = Duplex. Configured Redundancy Mode = SSO. +1 is the power supply module reserved for redundancy. # redundancy Switch(config-red)# mode sso Switch(config-red)# end Switch# show redundancy states my state = 13 -ACTIVE peer. Displays the operating 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. Example: Router(red-config)# exit: Exits to global configuration mode. Example: Device(config-red)# end: Exits redundancy configuration mode and returns to. A router in SSO redundancy mode checkpoints Layer 2 protocol states and line card operation.