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C
ONFIGURING
THE
S
WITCH
3-200
CLI – This example sets port 3 to accept only tagged frames, assigns
PVID 3 as the native VLAN ID, enables GVRP, sets the GARP timers,
and then sets the switchport mode to hybrid.
Configuring Private VLANs
Private VLANs provide port-based security and isolation between ports
within the assigned VLAN. Data traffic on downlink ports can only be
forwarded to, and from, uplink ports. (Note that private VLANs and
normal VLANs can exist simultaneously within the same switch.)
Enabling Private VLANs
Use the Private VLAN Status page to enable/disable the Private VLAN
function.
Console(config)#interface ethernet 1/3 4-170
Console(config-if)#switchport acceptable-frame-types tagged 4-234
Console(config-if)#switchport ingress-filtering 4-235
Console(config-if)#switchport native vlan 3 4-236
Console(config-if)#switchport gvrp 4-249
Console(config-if)#garp timer join 20 4-250
Console(config-if)#garp timer leave 90
Console(config-if)#garp timer leaveall 2000
Console(config-if)#switchport mode hybrid 4-233
Console(config-if)#
Uplink Ports
Primary VLAN
(promiscuous ports)
x
Downlink Ports
Secondary VLAN
(private ports)