•
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 packet
helps identify the VLAN to which the packet belongs.
– A trunk port can also belong to a regular VLAN (non-private VLAN).
ip local-proxy-arp
Enable/disable Layer 3 communication between secondary VLANs in a private VLAN.
C-Series, S-Series, Z-Series, S4810
Syntax
[no] ip local-proxy-arp
To disable Layer 3 communication between secondary VLANs in a private VLAN, use the no
ip 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 secondary
VLAN hosts, until the address resolution protocol (ARP) timeout happens on those
secondary VLAN hosts.
Defaults Layer 3 communication is disabled between secondary VLANs in a private VLAN.
Command Modes INTERFACE VLAN
Command 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.
Related
Commands
private-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.
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