Cisco WS-X6708-10G-3CXL= - 10 Gigabit Ethernet Module Manual de usuario descargar pdf (Pagina 37)

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interface will appear as a DFC line card as well. The redundancy mode of the supervisor module can be monitored

using the existing show commands.

The following screenshot provides an abbreviated output from the “show switch virtual redundancy” CLI with Quad -

Sup Uplink Forwarding enabled.

Configuration Synchronization

When the redundancy-framework progression between the active supervisor engine and standby supervisor engine is

reached, the configuration is synchronized between active virtual switch and standby virtual switch. The configuration

file contains the configuration for the entire Cisco Virtual Switching System and overwrites the configuration that

exists on the standby virtual switch. Both the bulk configuration synchronization and the incremental configuration

synchronization are sent through internal control messages across the VSL. As a result, the configuration in the

standby virtual switch NVRAM is overwritten.

Virtual Switch Priorities and Switch Preemption

Because the Cisco Virtual Switching System consists of two chassis merged into a single entity, you can desig nate a

particular physical switch to prefer an active role while its peer prefers the standby role. This designation is usually

determined by the following by default:

●

If switches are initiated at different times, then the switch that is initiated first becomes the active virtual switch.

●

If the switches are initiated simultaneously, the switch with the lower switch ID becomes the active virtual

switch.

You can alter the default behavior by using the Virtual Switch Priorities feature and the Switch Preem ption function.

Virtual Switch Priorities

Virtual Switch Priorities are assigned to each member of the Cisco Virtual Switching System under the virtual switch

configuration mode. By influencing the weighting of the priorities of each switch, you can deterministically define

which physical switch will prefer the active virtual switch role or the standby virtual switch role.

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Cisco WS-X6708-10G-3CXL= - 10 Gigabit Ethernet Module Manual de usuario Pagina 37