•Trunk port: A trunk port carries VLAN traffic across switches:– A trunk port in a PVLAN is always tagged.– Primary or secondary VLAN traffic is carried by the trunk port in Tagged mode. The tag on the packethelps identify the VLAN to which the packet belongs.– A trunk port can also belong to a regular VLAN (non-private VLAN).ip local-proxy-arpEnable/disable Layer 3 communication between secondary VLANs in a private VLAN.C-Series, S-Series, Z-Series, S4810Syntax [no] ip local-proxy-arpTo disable Layer 3 communication between secondary VLANs in a private VLAN, use the noip local-proxy-arp command in INTERFACE VLAN mode for the primary VLAN.To disable Layer 3 communication in a particular secondary VLAN, use the no ip local-proxy-arp command in INTERFACE VLAN mode for the selected secondary VLAN.NOTE: Even after you disable ip-local-proxy-arp (use no ip-local-proxy-arp) in a secondary VLAN, Layer 3 communication may happen between some secondaryVLAN hosts, until the address resolution protocol (ARP) timeout happens on thosesecondary VLAN hosts.Defaults Layer 3 communication is disabled between secondary VLANs in a private VLAN.Command Modes INTERFACE VLANCommand History Version 8.3.11.1 Introduced on the Z9000.Version 8.3.7.0 Introduced on the S4810.Version 7.8.1.0 Introduced on the C-Series and S-Series.RelatedCommandsprivate-vlan mode – sets the mode of the selected VLAN to community, isolated, or primary.private-vlan mapping secondary-vlan – maps secondary VLANs to the selected primary VLAN.show arp – displays the ARP table.show interfaces private-vlan – displays the type and status of the PVLAN interfaces.show vlan private-vlan – displays the PVLANs and/or interfaces that are part of a PVLAN.switchport mode private-vlan – sets PVLAN mode of the selected port.1158
