Allied Telesis AT-S63 - Manual (Page 241)

AT-S63 Stack Command Line Interface User’s Guide
Section III: Spanning Tree Protocols 241
SET SWITCH MULTICASTMODE
Syntax
set switch multicastmode=[a|b|c|d]
Parameter
multicast mode Specifies the multicast mode. The options are:
a Discards all ingress spanning tree BPDU and
802.1x EAPOL packets on all ports.
b Forwards ingress spanning tree BPDU and
802.1x EAPOL packets across all VLANs and
ports.
c Forwards ingress BPDU and EAPOL packets
only among the untagged ports of the VLAN
where the ingress port is a member.
d Forwards ingress BPDU and EAP packets on
both tagged and untagged ports of the VLAN
where the ingress port is a member.
Description
This command controls the behavior of the stack when forwarding ingress
spanning tree BPDU packets and 802.1x port-based access control
EAPOL packets when these features are disabled on the stack. Note the
following when setting this parameter:
ˆ The mode is set at the stack level. You cannot configure it on a per-
switch or per-port basis.
ˆ A stack can have only one mode active at a time.
ˆ The mode setting applies to spanning tree protocol BPDUs when STP,
RSTP, and MSTP are disabled on the stack.
ˆ The mode setting applies to 802.1x port-based access control EAPOL
packets when 802.1x is disabled.
ˆ There are four possible states: A, B, C, and D:
A - Discards all ingress spanning tree BPDU and 802.1x EAPOL packets
on all ports. The stack behaves as follows:
ˆ If STP, RSTP, and MSTP are disabled, all ingress BPDUs are
discarded.
ˆ If 802.1x port-based access control is disabled, all ingress EAPOL
packets are discarded.