Configuring Link Aggregation 937
2
STP
The default STP mode for Dell Networking switches is RSTP. VLANs
cannot be configured to contain both MLAG ports and non-MLAG (non-
redundant) ports. Only RSTP or MSTP are supported with MLAG. STP-
PV and RSTP-PV are not supported with MLAG. The following STP
configuration parameters must be the identical on both MLAG peers.
– Spanning-tree version (RSTP or MSTP)
– Bpdufilter
– Bpduflood
–Auto-edge
–TCN-guard
–Cost
–Edgeport
–STP Version
– STP MST VLAN configuration
– STP MST instance configuration (MST instance ID/port priority/port
cost/mode)
– Root guard
–Loop guard
3
Port-channel interface
The following port-channel attributes must be identical for MLAG port-
channels:
– Port-channel mode
– Link speed
–Duplex mode
–MTU
–Bandwidth
– VLAN configuration