Cisco Catalyst 6500 User Manual page 10

OSPF Convergence with Default timers
Recommendations
•
Enable atleast two links in VSL.
•
Use MEC with ePAgP or MEC with VSLP Fast Hello for faster VSL link loss convergence results.
•
Enable ECMP with IP−BFD.
•
Enable ePAgP to core, if the access layer is not ePAgP capable.
•
Enable both ePAgP an direct heart beat link based VSLP Fast Hello methods, if possible.
•
During VSL loss and recovery process do not perform configuration changes.
♦
After atleast one VSL member link is restored, if configuration on old ACTIVE chassis is
unchanged, old ACTIVE reboots itself to boot in VSS hot−standby redundancy state.
*Apr 6 17:36:33:809: %VSLP−SW1_SP−5−VSL_UP: Ready for Role Resolution with
Switch=2, MAC=0013a.30e1.6800 over Te1/5/5
*Apr 6 17:36:36.109: %dualACTIVE−1−VSL_RECOVERED: VSL has recovered during
dual ACTIVE situation: Reloading switch 1
!−−− part of output truncated