Allied Telesis AT-S63 - Manual (Page 472)

Chapter 26: Spanning Tree Protocol Commands
472 Section V: Spanning Tree Protocols
ˆ If 802.1x port-based access control is disabled, all ingress EAPOL
packets are discarded.
B - Forwards ingress spanning tree BPDU and 802.1x EAPOL packets
across all VLANs and ports. This is the default setting. The switch
behaves as follows:
ˆ If STP, RSTP, and MSTP are disabled, ingress BPDUs are flooded
on all ports.
ˆ If STP, RSTP, MSTP, and 802.1x are disabled on the switch,
BPDUs and EAPOL packets are flooded on all ports.
ˆ If the switch is running STP or RSTP and 802.1x is disabled,
EAPOL packets are flooded on all ports, except ports in the
blocking state.
ˆ If the switch is running MSTP and 802.1x is disabled, EAPOL
packets are flooded on all ports, including ports in the blocking
state.
C - Forwards ingress BPDU and EAPOL packets only on untagged ports
of the VLAN where the ingress port is a member. Packets are not
forwarded from tagged ports. The VLAN is identified by the PVID assigned
to the ingress port.
D - Forwards ingress BPDU and EAP packets from both tagged and
untagged ports of the VLAN where the ingress port is a member. The
VLAN is identified by the PVID assigned to the ingress port.
Example
The following command sets the switch’s mode to A to discard all ingress
BPDUs and 802.1 EAPOL packets:
set switch multicastmode=a