956 Configuring Link Aggregation
• An N/A entry indicates that state synchronization is not required (usually
for a link local protocol) and the feature can be configured on an MLAG
VLAN or MLAG-associated links. In some cases, it may be necessary to
configure an N/A feature identically on the MLAG peer switches for it to
work properly; e.g., port mirroring for an MLAG link must be configured
on both MLAG peer switches to capture the conversation from the MLAG
partner switch.
• A Yes entry indicates that the feature may be configured on an MLAG
VLAN and will synchronize state across the MLAG peers. The
configuration for features marked Yes must be identical on both switches.
MLAG does not synchronize configuration with the MLAG peer.
• A No entry indicates that the switch feature does not synchronize state
across the MLAG peers and the feature may not be configured on an
MLAG VLAN.
Table 28-2. MLAG State Synchronization Per Feature
Components MLAG State Synchronization Support
DOT1Q Yes
Protocol Based VLANs/802.1v No
GARP No
GVRP No
GMRP No
DOT1P No
Unauthenticated VLAN No
Voice VLAN No
Guest VLAN No
MAC Authentication Bypass No
Broadcast Storm Recovery No
DOT3AD Yes
LAG Hashing Yes
Port Mirroring N/A
MAC Filter N/A
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