Configuring A Layer 2 Interface As A Promiscuous Pvlan Trunk Port - Cisco Catalyst 4500 Series Software Configuration Manual

Chapter 47 Configuring Private VLANs

Configuring a Layer 2 Interface as a Promiscuous PVLAN Trunk Port

To configure a Layer 2 interface as a promiscuous PVLAN trunk port, perform this task:
Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# interface {fastethernet |
gigabitethernet | tengigabitethernet} slot/port
Step 3
Switch(config-if)# switchport mode private-vlan {host
| promiscuous | trunk promiscuous | trunk [secondary]}
Step 4
Switch(config-if)# [no] switchport private-vlan
mapping [trunk] primary_vlan_ID {secondary_vlan_list |
add secondary_vlan_list | remove secondary_vlan_list}
Step 5
Switch(config-if)# end
Step 6
Switch# show interfaces {fastethernet |
gigabitethernet | tengigabitethernet} slot/port
switchport
The maximum number of unique PVLAN pairs supported by the
Note
switchport private-vlan mapping trunk command is 500. For example, 500 isolated secondary
VLANs could map to 500 primary VLANs, because only one isolated VLAN association per primary
VLAN is supported. Or, 500 community secondary VLANs could map to one primary VLAN. Or, 250
community secondary VLANs could map to 1 primary VLAN, and another 250 community secondary
VLANs could map to another primary VLAN for a total of 500 pairs.
Note By default, when you configure the mode to PVLAN trunk promiscuous, the native VLAN is set to 1.
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
Administrative private-vlan host-association: none A
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: 10
Administrative private-vlan trunk Native VLAN tagging: enabled
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk associations:
3 (VLAN0003) 301 (VLAN0301)
Administrative private-vlan trunk mappings: none
Operational private-vlan: none
Operational Normal VLANs: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled Capture VLANs Allowed: ALL
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
Appliance trust: none
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Purpose
Enters global configuration mode.
Specifies the LAN interface to configure.
Configures a Layer 2 interface as a PVLAN
promiscuous trunk port.
Maps the promiscuous PVLAN port to a primary
VLAN and to selected secondary VLANs.
This command offers 3 levels of removal. See the
examples that follow this table.
Exits configuration mode.
Verifies the configuration.
Configuring PVLANs
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