VSX configuration synchronization
VSX configuration synchronization simplifies VSX solution management, reduces configuration misconfiguration, and drift across VSX peer switches. With configuration synchronization enabled, the primary peer configuration is synced to the secondary peer. This synchronization is controlled in an opt-in manner by enabling VSX synchronization on a section of configuration.
The secondary switch is not present.
The secondary switch is not connected to the primary switch through the ISL.
The secondary switch is not configured for VSX configuration synchronization at the time VSX configuration synchronization is enabled on the primary switch.
You can only enable a specific configuration for syncing through the
vsx-sync
CLI extension on the primary switch. This extension is blocked on the secondary peer switch except when VSX configuration-synchronization is disabled or the ISL link is down.
Attributes supporting VSX
You can enable VSX synchronization for:
Access lists
Access lists and VLANs associated with a system or LAG interface.
Active gateways associated with a VLAN interface
Classes
Policies
VLANs
VSX synchronization requirements
Software image versions must be the same on both switches.
Primary and secondary roles configured.*
An interswitch link must be configured.*
Keepalive*
*Steps on to how meet these requirements are provided in Configuring aggregate 1 and aggregate 2 switches.