Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.100.0 - Page 926
Scenarios for VLAN Membership and MAC Synchronization, With VLT Nodes in PVLAN
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Under such conditions, the IP stack performs the following operations: • The ARP reply is sent with the MAC address of the primary VLAN. • The ARP request packet originates on the primary VLAN for the intended destination IP address. The ARP request received on ICLs are not proxied, even if they are received with a secondary VLAN tag. This behavior change occurs because the node from which the ARP request was forwarded would have replied with its MAC address, and the current node discards the ARP request. Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN The following table illustrates the association of the VLTi link and PVLANs, and the MAC synchronization of VLT nodes in a PVLAN (for various modes of operations of the VLT peers): Table 94. VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN VLT LAG Mode Peer1 Peer2 PVLAN Mode of VLT VLAN Peer1 Peer2 Trunk Trunk Primary Primary ICL VLAN Membership Yes Trunk Trunk Primary Normal No Trunk Trunk Normal Normal Yes Promiscuous Trunk Primary Primary Yes Trunk Access Primary Secondary No Promiscuous Promiscuous Primary Primary Yes Promiscuous Access Primary Secondary No Promiscuous Promiscuous Primary Primary Yes - Secondary - Secondary No (Community) (Isolated) Access Access Secondary (Community) Secondary (Isolated) No • Primary X • Primary X Yes Promiscuous Promiscuous Primary Primary Yes - Secondary - Secondary Yes (Community) (Community) - Secondary - Secondary Yes (Isolated) (Isolated) Promiscuous Trunk Primary Normal No Promiscuous Trunk Primary Primary Yes Mac Synchronization Yes No Yes No No Yes No Yes No No Yes Yes Yes Yes No No 926 Virtual Link Trunking (VLT)
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