What is supervisor engine Cisco switch?

Supervisor Engine is a module that is installed in the Cisco Chassis-based Catalyst Switches or Routers. Supervisor engine contains nearly all the same components of a fixed Cisco Switches or Routers.

What is RPR mode in Cisco?

RPR supports the following features: • Auto-startup and bootvar synchronization between active and standby supervisor engines. • Hardware signals that detect and decide the active or standby status of supervisor engines. • Clock synchronization every 60 seconds from the active to the standby supervisor engine.

What is RPR mode in VSS?

The Catalyst 4500 and 6500 series of switches do provide options for redundant Supervisor Engines. Switches can run multiple route processors (supervisors) in 3 modes: RPR (Route Processor Redundancy) RPR+ (Route Processor Redundancy plus) SSO (Stateful Switchover)

What is SSO mode in Cisco?

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. 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.

What is SUP in Cisco switch?

The supervisor engine is the central forwading intelligence of a modular switch such as the 4500 and 6500 series, and also takes care of the control plane and other functions. Think of it as the “brains” of your switch.

What does a supervisor module do?

The supervisor module is the module that is the brains behind the whole switching operations. Its usually found in chassis based switches, nowadays, it handles everything, including routing and switching (older models had them separated.)

What is SSO and NSF?

Non-Stop Forwarding (NSF) and Stateful Switchover (SSO) are designed so a dual-Supervisor 6500 (or other device) can minimize packet loss during a Supervisor failure. They do this by keeping L2 and L3 state synchronized between the Supervisors.

What is stateful switchover in Cisco?

The Stateful Switchover (SSO) feature works with Nonstop Forwarding (NSF) in Cisco software to minimize the amount of time a network is unavailable to its users following a switchover. The primary objective of SSO is to improve the availability of networks constructed with Cisco routers.

What is SUP card in router?

What is line card in Cisco switch?

The MSC, FP, and LSP card, also called line cards, are the Layer 3 forwarding engine in the Cisco CRS 8-slot Line Card Chassis Enhanced router. Each line card is paired with a corresponding physical layer interface module (PLIM) that contains the packet interfaces for the line card.

What is Cisco NSF?

Cisco Nonstop Forwarding (NSF) works with the Stateful Switchover (SSO) feature to minimize the amount of time a network is unavailable to users following a switchover. The main objective of NSF SSO is to continue forwarding IP packets following a Route Processor (RP) switchover.