VLAN tagging

Hi,

I have XenServer installed on a HS21 blade server. The blade server has 2 NICs connected to an ESM which is connected to a Nortel 5520 switch via a trunk. I need to create an isolated VLAN to isolate a copy of the PROD network but do not have any spare NIC ports available. It appears that my best option is to use VLAN tagging and I am unsure how to configure this within the current setup. I cannot break the current trunk as this servers Production servers. The HS21 blade has 2 NICS that plug into 2 ESM ports, EXT0 and EXT1. This is then trunked in to 2 ports on the nortel switch, unit 1 port 1 and unit 1 port 2. I then have a virtual machine running on ESX which has an uplink assigned to a virtual switch which is plugged in to a separate port in the same switch as the trunk is plugged into, unit 1 port 4. I want to use VLAN ID 100. I have created a network VLAN in the XenServer with an ID of 100. I have also created a virtual switch in ESX and have specifed VLAN ID 100. I need to configure the trunk and the port the ESX uplink plugs in to, to be in the same VLANID of 100.

Can anyone point me in to the right direction?

Cheers
GLadmins
gladminsAsked:
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gladminsConnect With a Mentor Author Commented:
Hi,

I'm going to give this a miss. I can;t get this figured out so not interested.

Thanks for you rhelp
GLadmins
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TrackhappyCommented:
I don't know Xen at all, but we have 5520's if you need help to configure it. Do you use Telnet or DM to manage the switch?
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gladminsAuthor Commented:
Actually Xen is configured fine I believe - when you create a network switch, you specify the uplink (ext1 in this case) and enter a VLAN ID. It's the nortel bit I am struggling with. I need to know how to tag a VLAN... The trunk is already configured. Do you know how to get VLAN tagging to work in a 5520?

Relaly appreciate your help

Cheers
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gladminsAuthor Commented:
sorry - you have telnet and the web interface. I have been using both but prefer the web UI
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TrackhappyCommented:
Telnet into the switch and you should get a menu come up. Go into Switch configuration, Vlan configuration, Vlan configuration. If you putt 100 in the Create Vlan field and hit enter it will create Vlan100 on the switch. The go into Vlan Port configuration, pick your port and change the Tagging filed by using the space bar. You will also need to make that port and the trunk ports members of the vlan.

I am not 100% sure of how it is going to work with Xen, but that is th basics to set up the Nortel.
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gladminsAuthor Commented:
ok - I will give that a go. It's roughly what I tried ealrier but I got an error saying strict VLANing was enabled. I suppose I want the trunk to be a member of both the default VLAN (id1) and the new VLAN (id100)

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TrackhappyCommented:
Ok, there is a setting for that....
Under Port Configuration, ConfigControl (Global) use space bar to set it to AutoPVID. I think you can use automatic as well, but we use AutoPVID.
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gladminsAuthor Commented:
ok - we're finishing up for the day but will try this at home later. Let you know. Can I do this through the web GUI aswell?
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TrackhappyCommented:
Not sure about that , we either use DM or Telnet, but I imagine you can.
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TrackhappyCommented:
It is there under Applications, Vlan.
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TrackhappyCommented:
Your choice, but we are here to help you through it if you have the fortutude.
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gladminsAuthor Commented:
I appreciate your help but I think there may be another solution which will serve the same functionality. I am also playing with a production ESM which is what the HS21 blades are connected to and it has our AD, DMS and Exchange system hanging off it so not good to start fiddling with.

Thanks anyway
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TrackhappyCommented:
Cool. All the best.
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gladminsAuthor Commented:
Very interesting
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