What is stateful switchover SSO?
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 processing of mirroring this information between route processors is known as checkpointing.
What is SSO failover?
Stateful switchover (SSO) allows for a hot-standby processor to take control of a failed route processor while maintaining connectivity. In a failure, SSO switches the system to the hot standby route processor. The failed one will attempt to reboot and operate as the new standby.
What is redundancy management IP address?
The redundancy-management interface is a local physical management interface that shares the subnet mask, gateway, and VLAN ID from the management interface. You must configure only the IP address for the redundancy-management interface to enable redundancy on the primary and secondary controllers.
What is ha in WLC?
They buy a Cisco WLC 5508 with built-in license for 25 access points (AIR-CT5508-25-K9) and a WLC for high availability (AIR-CT5508-HA-K9). The HA-WLC is automatically sharing the configuration and the license for 90 days from the main WLC.
What is switchover in Cisco?
Cisco Nonstop Forwarding (NSF) with Stateful Switchover (SSO) provides increased network service availability and protection against unplanned downtime due to hardware or software problems. The first section will describe the target deployment points within the network.
What is SSO and NSF?
NSF works with SSO to minimize the amount of time that a network is unavailable to its users following a switchover. The main purpose of NSF is to continue forwarding IP packets following a supervisor engine switchover.
What is redundancy force switchover?
redundancy force-switchover. To force a switchover from the active switch to the standby switch, use the redundancy force-switchover command in privileged EXEC mode on a switch stack. redundancy force-switchover.
What is client SSO?
SSO is the technology that allows a customer or partner (or any user) to browse from one online site or application to another without the need to manually re-authenticate when you enter the second service. …
What is the redundancy port used for?
The redundancy port is used for configuration, operational data synchronization and role negotiation between the primary and secondary controllers.
What is Cisco SSO redundancy?
SSO providesRP redundancy by establishing one of the RPs as the active processor and the other RP as the standby processor. SSO also synchronizes critical state information between the RPs so that network state information is dynamically maintained between RPs. SSO is generally used with Cisco nonstop forwarding (NSF).
What is switchover in networking?
Switchover is the manual switch from one system to a redundant or standby computer server, system, or network upon the failure or abnormal termination of the previously active server, system, or network, or to perform system maintenance, such as installing patches, and upgrading software or hardware.
What is Cisco NSR?
NSF supports forwarding without traffic loss during a brief outage of the control plane. Whereas NSR allows for the forwarding of data packets to continue along known routes while the routing protocol information is being refreshed following a processor switchover.