asked on

HP Switch Voice Vlan

Hi,

I have a scenario that I need to create a voice vlan and create trunk port for uplink which connects to Cisco router.

We have two switches 2810-48 and 24. They are connected via Trunk (Switch1 45-48 to Switch2 21-24)

Here is the current switch configuration:

Switch1

hostname "ProCurve 2810-48G"

trunk 45-48 Trk1 Trunk

ip default-gateway 192.168.0.254

snmp-server community "public" Unrestricted

vlan 1

name "DEFAULT_VLAN"

untagged 1-44,Trk1

ip address 192.168.0.102 255.255.255.0

exit

spanning-tree Trk1 priority 4

Switch2

hostname "ProCurve Switch 2810-24G"

trunk 21-24 Trk1 Trunk

ip default-gateway 192.168.0.254

snmp-server community "public" Unrestricted

vlan 1

name "DEFAULT_VLAN"

untagged 1-20,Trk1

ip address 192.168.0.101 255.255.255.0

exit

spanning-tree Trk1 priority 4

First of all, I need to create a trunking with vlan 100 (Voice) on uplink which connects to cisco router. Port 12 will be used to connect to uplink.

My configuration would be like this:

ProCurve 2810-48G#(Config)#vlan 1

ProCurve 2810-48G#(Vlan-1)#untagged 1-11,14-44

ProCurve 2810-48G#(Vlan-1)#tagged 12 //Enable Trunk on port 12 connecting to Router

ProCurve 2810-48G#(Config)#Vlan 100

ProCurve 2810-48G#(Config)#name "VOICE"

ProCurve 2810-48G#(vlan-100)#tagged 12 //Enable Trunk on port 12 connecting to Router ProCurve

2810-48G#(vlan-100)#untagged 13 //Connect to IAD (VINE2000) and IAD will connect to IP-PBX which all non-ip phones are connected.

Is this correct? or am I missing something here?

Don Johnston

It's hard to say because we have a terminology issue.

In Cisco, "trunking" refers to carrying multiple VLANs on a port.
In HP, it means aggregating multiple links to behave as one link.

So when you talk about creating a trunk between a Cisco router and an HP switch, I'm not sure what you're referring to.

Can you elaborate?

Educad

ASKER

I am referring to the trunk in cisco term between a Cisco router and an HP switch. This link should be able to carry more than one vlan (vlan 1 and vlan 100) so that's why there is tagged commend in my configuration.

I am talking about trucking link in Cisco term and I think I should refer to this tagged in HP term? So I added two commends to create trunk link between a cisco router and an HP switch not Link Aggregation.
vlan1 -> tagged 12
vlan 100 -> tagged 12

And I also need to add voice vlan to HP switch as there will be a phone system which connects to the switch.

Please also have a look at the screenshot.
image1.png

Don Johnston

The term "Voice VLAN" is just means of simplifying the management on VoIP in a Cisco network. Functionally, there is nothing special about a VLAN used for VoIP traffic.

With respect to the HP side, you will want the native VLAN untagged and other VLAN's tagged on the port which connects to the other switch. So if VLAN 1 is the native VLAN and VLAN 50 is for data and VLAN 100 is for VoIP, you would want the following:

vlan 1 
 untagged 45
vlan 50
 tagged 45
vlan 100
 tagged 45

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On the Cisco side it's much easier:

int g0/1
 switchport mode trunk

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Educad

ASKER

Can I still use default vlan 1 for data vlan instead of making another vlan 50?

Don Johnston

Yes.

Educad

ASKER

Thank you for answering my questions.

One last question.

ProCurve 2810-48G#(Config)#vlan 1
ProCurve 2810-48G#(Vlan-1)#untagged 1-11,14-44
ProCurve 2810-48G#(Vlan-1)#tagged 12 

ProCurve 2810-48G#(Config)#Vlan 100
ProCurve 2810-48G#(Config)#name "VOICE"
ProCurve 2810-48G#(vlan-100)#tagged 12 
ProCurve 2810-48G#(vlan-100)#untagged 13

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Does above configuration seem to be correct to you?

Don Johnston

What is port 12 connected to? You don't have a native VLAN defined on that port.

Educad

ASKER

It is connected to Cisco router. isn't native vlan default on vlan 1?

Educad

ASKER

And I have untagged 1-11,14-44 for vlan 1

Don Johnston

It is connected to Cisco router. isn't native vlan default on vlan 1?

It is on Cisco switches. On HP you define it by not tagging the VLAN on that port.

Educad

ASKER

There is no Cisco switch Don. In Cisco router there is native vlan 1
encapsulation dot1Q 1 native -> on cisco router.

On an HP switch. ProCurve 2810-48G#(Vlan-1)#untagged 1-11,14-44 // this is native (untagged) vlan

Don Johnston

There is no default native VLAN on Cisco routers. The native VLAN is defined by either using the physical interface or using a sub-interfance with the "encapsulation dot1q x native" command.

So on an HP switch, you would define VLAN 1 as native by not tagging it.

vlan 1
untagged 12

Educad

ASKER

Sorry you are right. I meant using a sub-interface with the "encapsulation dot1q 1 native" command.

vlan 1
tagged 12
untagged 12

Would this work? because I need a trunk port (tagged port) on port 12 as well. I think if I add port 12 as tagged port, it will automatically remove port 12 from untagged port.

cisco speak = procurve (most industry) speak
access port = untagged port
trunk port = tagged port (802.1Q)
etherchannel/FEC = trunk or LACP

Sorry about the confusion.

Don Johnston

Well, that's not quite how is works. You can only have one VLAN untagged on a port. If you have no VLANs tagged on that port, then it's (what Cisco calls) an access port.

If you have any VLANs tagged for that port, then it's (what Cisco calls) a trunk port.

Adding a tagged VLAN to a port does not remove the untagged VLAN from that port. It's simply makes it a trunk port.

The VLAN which is untagged on that port is always the native VLAN.

VLAN 10
 untagged 26

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This means port 26 is an access port that is a member of VLAN 10

VLAN 10
 untagged 26
VLAN 20
 tagged 26
VLAN 30
 tagged 26

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This means port 26 is a trunk port with VLAN 10 being the native VLAN.

Educad

ASKER

Okay Don, thanks for your answer.

Here is my final configuration on our hp swtich.

hostname "ProCurve 2810-48G"
trunk 45-48 Trk1 Trunk
ip default-gateway 192.168.0.254
snmp-server community "public" Unrestricted

vlan 1
   name "DEFAULT_VLAN"
   untagged 1-10,13-44,Trk1          //untagged port - internal PCs and servers are connected 
   ip address 192.168.0.102 255.255.255.0
   tagged 11                 //tagged port for cisco router 1941 series (inter-vlan has been configured)*
   no untagged 12
   exit

vlan 100
   name "Voice"
   untagged 12            //untagged port (access port in cisco term) for phone system -PBX
   tagged 11                 //tagged port(trunk port in cisco term) for cisco router 1941 series (inter-vlan has been configured)*
   voice
   exit
spanning-tree Trk1 priority 4

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Does this seem to be correct to you? Unfortunately, I cannot make vlan 10 for data I have to use just default vlan 1 for data. Your help would be very appreciated Don.

Don Johnston

Please post the config of the Cisco router.

Educad

ASKER

interface GigabitEthernet0/0
 ip address 10.x.x.x 255.255.255.252
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
!
interface GigabitEthernet0/1.1
 encapsulation dot1Q 1 native
 ip address 192.168.0.250 255.255.255.0
!
interface GigabitEthernet0/1.100
 encapsulation dot1Q 100
 ip address 192.168.40.250 255.255.255.0

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Don Johnston

VLAN 1
untagged 12
VLAN 100
tagged 12

Educad

ASKER

Hi Don,

Did you mean port 11 not 12?
VLAN1
untagged 11
VLAN
tagged 11

Don Johnston

No. Port 12. That's the port which connects to the router, right?

Educad

ASKER

No. Port 11 connects to router. And port 12 connects to Dataflex IAD (VINE2000) and this device connects Panasonic IP-PBX which all non-IP phones are connected.

hostname "ProCurve 2810-48G"
trunk 45-48 Trk1 Trunk
ip default-gateway 192.168.0.254
snmp-server community "public" Unrestricted

vlan 1
   name "DEFAULT_VLAN"
   untagged 1-10,13-44,Trk1          //untagged port - internal PCs and servers are connected 
   ip address 192.168.0.102 255.255.255.0
   tagged 11                 //tagged port for cisco router 1941 series (inter-vlan has been configured)*
   no untagged 12
   exit

vlan 100
   name "Voice"
   untagged 12            //untagged port (access port in cisco term) for phone system -PBX
   tagged 11                 //tagged port(trunk port in cisco term) for cisco router 1941 series (inter-vlan has been configured)*
   voice
   exit
spanning-tree Trk1 priority 4

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ASKER CERTIFIED SOLUTION

Don Johnston

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Educad

ASKER

Thank you very much Don. I really appreciate your time and answers for my questions.