Description                                                                                        Cisco                    ProCurve
A port that belongs to a unique VLAN                                     Access mode            Untagged
A port carries multiple VLANs using 802.1q tags               Trunk mode              Tagged

Now to our example, here we are going to create two VLANs, VLAN 100 (Data) and VLAN 200 (Data2) and make use of these vlans are setup on both Cisco and HP switches.

In this example we are going to use the 48th port on both HP and Cisco as the trunk ports and interconnects togther on these ports.

On Procurve Switch:
Go to configuration mode and enter the following commands,

Procurve(config)#vlan 100
Procurve(config)#name “Data”
Procurve(config)#tagged 48

Procurve(config)#vlan 200
Procurve(config)#name “Voice”
Procurve(config)#tagged 48

You can see the configuration as

Procurve(config)#sh run

vlan 100
name “Data”
tagged 48
exit

vlan 200
name “Data2”
tagged 48
exit

On Cisco Switch:

Go to configuration mode and enter the following commands,

Cisco>enable
Password:
Cisco#conf t
Cisco(config)#vlan 100
Cisco(config-vlan)#name “Data”

Cisco(config-vlan)#vlan 200
Cisco(config-vlan)#name “Data2”

Cisco(config-vlan)#exit
Cisco(config)#interface gi1/0/48
Cisco(config-if)#description “Uplink to Procurve switch”

Cisco(config-if)#switchport trunk encapsulation dot1q
Cisco(config-if)#switchport trunk allowed vlan 100,200
Cisco(config-if)#switchport mode trunk

“show run” on enable mode will list all the configuration and the switch port configuration will be like as follows,

interface GigabitEthernet1/0/48
description “Uplink to Procurve switch”
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 100-200
switchport mode trunk

I hope this helps!!!