openstack team mailing list archive

[Aaron Rosen <arosen@xxxxxxxxxx>]

On Tue, Feb 26, 2013 at 11:02 PM, Aaron Rosen <arosen@xxxxxxxxxx> wrote:

> inline
>
> On Tue, Feb 26, 2013 at 10:51 PM, Ajiva Fan <aji.zqfan@xxxxxxxxx> wrote:
>
>> greeting, stackers
>>
>> i deploy essex with flatdhcp, it works for a long time, but currently
>> i want to use vlan network, so i deploy a new environment everything
>> is same as the previous one, just use vlan network.
>>
>> here is the probelm:
>> i cannot ping vm on other compute node
>>
>> control node (all-in-one)
>> public nic(eth0): 172.16.1.12
>> vlan nic(eth1):
>> vlan105
>> br105 10.0.12.6
>> compute node(nova-compute, nova-network)
>> public nic(eth0): 172.16.1.13
>> vlan nic(eth1):
>> vlan105
>> br105 10.0.12.4
>>
>> now i create 2 vm, one is 10.0.12.5 on control node, another one is
>> 10.0.12.3 on compute node
>>
>> i cannot ping 10.0.12.4 from control node, so i cannot ping 10.0.12.3
>> neither
>>
>> using tcpdump -nnxx -i eth1 host 10.0.12.3, i capture ARP package from
>> control node with vlan tag 8100 0069 0806 0001 0800 0604, so i think
>> it works right so far. but on compute node i use tcpdump -i eth1 host
>> 10.0.12.3 and get nothing.
>>
>> the cables connect to eth1 are plugged into a cisco catalyst 2950
>> swither port 22 and 23, working under trunk mode, it allows all vlan
>> by default
>>
>> i guess the problem may be caused by wrong setting of switcher since
>> packets are dropped, but i'm not very sure.
>>
>>
> You could do:
>
> on host connected to port 22 on the switch
> vconfig add eth1 5
> ifconfig eth0.5 10.2.2.2/24
>
> on host connected on port 23
> vconfig add eth1 5
> ifconfig eth0.5 10.2.2.3/24
>
> and then try to ping through the switch (ping 10.2.2.2) in order switch to
> rule it out.
>
>
** In order to rule the switch out.


> after two days search answer on the internet, i've no idea how to
>> solve this question, so please help me
>>
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>
>