Recommended Configuration Parameters
Recommended Configuration Parameters
Multi-chassis peers in the same domain must maintain identical configuration and operational parameters.
Ensure that the mandatory parameters are the same on both peers. Multi-chassis functionality is optimal
with unified management on participating chassis. Any mismatch or mis-configuration can adversely
affect network traffic behavior. There is no automatic check or facility to check for mis-configuration.
Ensure that the following recommended parameters are configured identical on both the chassis.
•
MAC Address Aging Timer
•
MC-LAG member ports: port speed and duplex
•
Static MAC Entries
•
QoS Configuration
•
Port Security Configuration
•
IGMP Snooping Configuration
•
IP interface configuration
•
Routing Protocols Configuration
•
VRRP Configuration
Verifying Parameter Consistency
Parameter consistency is performed automatically at start time and relevant runtime when any configura-
tion changes are applied to either chassis. If there is any persistent mismatch of the mandatory parameters,
then the global operation state of the Multi-Chassis feature will be updated as operationally down. Incon-
sistency between some of the non-mandatory MC-LAG aggregate parameters prevents a particular
MC-LAG or all MC-LAG aggregates from becoming operational. The mandatory parameters for MC-
LAG and the impact of their violation are: as follows:
page 8-26
OmniSwitch AOS Release 7 Network Configuration Guide
Configuring Multi-chassis Link Aggregation
March 2011