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RE: [Xen-API] XCP: VLAN Issue



Hi Ronny,

 

The output of xe pif-list below looks fine. It is normal to have a PIF with VLAN=-1: this is the interface that does not tag/untag packets going through it. You do have another PIF for VLAN 201 in the pif-list right above it:

 

uuid ( RO)                  : d14427c2-4940-0db1-7d96-f55434af319e
                device ( RO): eth1
    currently-attached ( RO): true
                  VLAN ( RO): 201
          network-uuid ( RO): 85a9aba5-73ea-4008-0a28-395c96be30fd

 

Putting VIFs on the Network for that PIF puts those VIFs on VLAN 201. If you want to communicate with dom0 over VLAN 201, you need to put an IP address on this PIF using “xe pif-reconfigure-ip uuid=d14427c2-4940-0db1-7d96-f55434af319e mode=…”.

 

Cheers,

Rob

 

From: xen-api-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-api-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Ronny Bull
Sent: 11 July 2011 20:11
To: xen-api@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-API] XCP: VLAN Issue

 

I have an issue with VLANs that was in XCP 1.0.0 and also persisted after the upgrade to XCP 1.1.beta.  I updated to the beta because I spoke with someone in #xen-api that suggested that a fix to the issue would be implemented in 1.1, it seems it may have been overlooked or I have a different issue.

Currently the server has 2 network cards:

00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 05)
02:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection

eth0 is the designated as the management interface and is connected to a port on VLAN 193
eth1 is the interface used by the VM's and is connected to a trunked switch port to provide VLAN access to the VM's

Before moving eth1 to a trunked port without vlanning I could ping it's ip address and ssh to it.  After moving it to the trunked port I have no connectivity to it whatsoever.  The only way I can get a response from it is to ping the static IP on the local machine.  The VM's are using the interface on the created VLANS almost perfectly however they sometimes exhibit strange behaviour such as loss of connectivity when connecting to another machine crossing over a vlan.

I setup my vlans using the XenServer guide here is the output of pif-list:

******************************

****************************************************
 xe pif-list
uuid ( RO)                  : 3ebae448-8520-1d92-32b8-322be6018909
                device ( RO): eth0
    currently-attached ( RO): true
                  VLAN ( RO): -1
          network-uuid ( RO): 0eb1efb3-60c4-f754-ccee-607ea7419524


uuid ( RO)                  : 32ab2f2a-601e-766e-d71b-9ca1d7e6339f
                device ( RO): eth1
    currently-attached ( RO): true
                  VLAN ( RO): 200
          network-uuid ( RO): cef0cc98-274d-102f-4441-7327c888dcd2


uuid ( RO)                  : d14427c2-4940-0db1-7d96-f55434af319e
                device ( RO): eth1
    currently-attached ( RO): true
                  VLAN ( RO): 201
          network-uuid ( RO): 85a9aba5-73ea-4008-0a28-395c96be30fd


uuid ( RO)                  : e602777f-b4e9-e231-7858-81189c47c434
                device ( RO): eth1
    currently-attached ( RO): true
                  VLAN ( RO): -1
          network-uuid ( RO): df87728a-e4a7-a16e-9f8c-c4c4c26dc35f


uuid ( RO)                  : 753ee4aa-d286-b66b-d0c0-8c212ac0cca5
                device ( RO): eth1
    currently-attached ( RO): true
                  VLAN ( RO): 193
          network-uuid ( RO): 7abbb9eb-2507-9a16-c547-2f3dd02bc1d9


uuid ( RO)                  : 2fa498da-1749-2822-b194-bf2890491533
                device ( RO): eth1
    currently-attached ( RO): true
                  VLAN ( RO): 194
          network-uuid ( RO): 54a0217e-e659-8fc6-7a5c-fef685fe9d7a


uuid ( RO)                  : b80d7974-cc00-9db4-213e-e1df3a51f2a8
                device ( RO): eth1
    currently-attached ( RO): true
                  VLAN ( RO): 207
          network-uuid ( RO): 0af4cb48-83e4-b417-cb5d-9df528dd587a


uuid ( RO)                  : 2934f6a4-1d80-ad36-96a4-5962f669c4f9
                device ( RO): eth1
    currently-attached ( RO): true
                  VLAN ( RO): 795
          network-uuid ( RO): 2ce5fe35-ea10-e1a7-c9e3-4f5bfd5c55ab
*********************************************************************************

I suspected that the issue may lie here:

************************************************************************************
uuid ( RO)                  : e602777f-b4e9-e231-7858-81189c47c434
                device ( RO): eth1
    currently-attached ( RO): true
                  VLAN ( RO): -1
          network-uuid ( RO): df87728a-e4a7-a16e-9f8c-c4c4c26dc35f
************************************************************************************

where the eth1 interface is assigned a VLAN value of -1 when it should be on the 201 network.  When I try to do

xe pif-param-set uuid=e602777f-b4e9-e231-7858-81189c47c434 VLAN=201

I get:

Error: Field 'VLAN' is read-only.

How can I assign the interface to the correct VLAN so I can use it again for traffic to the server?

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