About Supervisor Engine Redundancy Synchronization - Cisco Catalyst 4500 Series Software Configuration Manual

About Supervisor Engine Redundancy Synchronization

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SSO is compatible with the following list of features. However, the protocol database for these features
is not synchronized between the redundant and active supervisor engines:
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The following features are learned on the redundant supervisor engine if the SSO feature is enabled:
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About Supervisor Engine Redundancy Synchronization
During normal operation, the persistent configuration (RPR and SSO) and the running configuration
(SSO only) are synchronized by default between the two supervisor engines. In a switchover, the new
active supervisor engine uses the current configuration.
Note
These sections describe supervisor engine redundancy synchronization:
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RPR Supervisor Engine Configuration Synchronization
Because the redundant supervisor engine is only partially initialized in RPR mode, it interacts with the
active supervisor engine only to receive configuration changes at startup and upon saving the
configuration changes.
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
11-4
Chapter 11 Configuring Supervisor Engine Redundancy Using RPR and SSO on Supervisor Engine 6-E and Supervisor
PVST+
Rapid-PVST
PortFast/UplinkFast/BackboneFast
BPDU guard and filtering
Voice VLAN
Port security
Unicast MAC filtering
ACL (VACLS, PACLS, RACLS)
QoS (DBL)
Multicast storm control/broadcast storm control
802.1Q tunneling with Layer 2 Protocol Tunneling (L2PT)
Baby giants
Jumbo frame support
CDP
Flood blocking
UDLD
SPAN/RSPAN
NetFlow
All Layer 3 protocols on Catalyst 4500 series switches (Switch Virtual Interfaces)
You cannot enter CLI commands on the redundant supervisor engine console.
RPR Supervisor Engine Configuration Synchronization, page 11-4
SSO Supervisor Engine Configuration Synchronization, page 11-5