Lenovo RackSwitch G8264 Application Manual page 455

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 All the Layer 2 configuration is lost.
When a routed port is changed back to a switch port, the following changes take
place:
 All the IP configuration is lost.
 The ARP entry corresponding to the IP address is lost.
The switch port is added to the default VLAN and STG. In case of MSTP, it is

added to the CIST.
 STP is turned on.
 The switch port can participate in STG and VLAN flooding.
Can participate in bridging.

 LACP port attributes are set to default.
Multicast threshold remains disabled.

 BPDU guard remains disabled.
IGMP configuration is lost.

Note: When you configure a routed port to back to a switch port, it does not
restore the Layer 2 configuration it had before it was changed to a routed port.
455
Chapter 28: Routed Ports