Cisco Catalyst 4500 Series - Page 442

10-6
Software Configuration Guide—Release IOS XE 3.5.0E and IOS 15.2(1)E
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Chapter 10 Configuring Supervisor Engine Redundancy Using RPR and SSO on Supervisor Engine 6-E and Supervisor
Supervisor Engine Redundancy Guidelines and Restrictions
Here are the steps:
Step 1 Clear the offending configuration (that caused an MCL) while the standby supervisor engine is in
standby cold (RPR) state.
Step 2 Enter the redundancy config-sync ignore mismatched-commands EXEC command at the active
standby supervisor engine.
Step 3 Perform write memory.
Step 4 Reload the standby supervisor engine with the redundancy reload peer command.
• If you configure Supervisor Engine V-10GE to use both Gigabit Ethernet and 10-Gigabit Ethernet
uplinks without WS-X4302-GB in slot 10, module 10 is disabled and you cannot rollback the
configuration to use gigabit ports.
Enter the following commands to recover:
config t
hw-module uplink select tengigabitethernet // This sets the switch back to default
mode
!
ctrl z
wr me
redundancy reload shelf // The switch will reload with all 10 modules working ok
//The switch reloads
config t
hw-module uplink select gigabitethernet // This sets the switch to the desired link
!
ctrl z
wr me
redundancy reload shelf // The switch reloads with module 10 active with the gigabit
ethernet port(s) ON and the ten gigabit ethernet port(s) Off
• RPR requires Cisco IOS Release 12.1(12c)EW, Release 12.1(19)E or later releases. SSO requires
Cisco IOS Release 12.2(20)EWA or later releases.
• The Catalyst 4507R switch and the 4510R switch are the only Catalyst 4500 series switches that
support supervisor engine redundancy.
• In Cisco IOS Release 12.2(25)SG and later releases on a Catalyst 4507R series switch, 10-Gigabit
Ethernet and Gigabit Ethernet uplinks are concurrently usable.
• Redundancy requires both supervisor engines in the chassis to have the same components (model,
memory, NFL daughter card), and to use the same Cisco IOS software image.
• When the WS-X4516 active and redundant supervisor engines are installed in the same chassis, the
four uplink ports (Gig1/1, Gig2/1, Gig 1/2, and Gig2/2) are available.
• The active and redundant supervisor engines in the chassis must be in slots 1 and 2.
• Each supervisor engine in the chassis must have its own flash device and console port connections
to operate the switch on its own.
• Each supervisor engine must have a unique console connection. Do not connect a Y cable to the
console ports.
• Supervisor engine redundancy does not provide supervisor engine load balancing.