Recommended Configuration Parameters Configuring Multi-chassis Link Aggregation
page 8-26 OmniSwitch AOS Release 7 Network Configuration Guide March 2011
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:
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