[OOR-Users] Users Digest, Vol 10, Issue 7

Tue Sep 20 18:07:00 CEST 2016

Can I suggest that you put the mailing list information as the signature line? So the important information in the email is top posted?

Dino

> On Sep 20, 2016, at 2:28 AM, users-request at openoverlayrouter.org wrote:
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> Today's Topics:
> 
>   1. Re: About mobility support based on OOR (LISP)
>      (Alberto Rodriguez-Natal)
>   2. Re: Problems configuring oor on a openwrt router (Albert López)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 19 Sep 2016 17:28:23 -0700
> From: Alberto Rodriguez-Natal <rodrigueznatal at gmail.com>
> To: YoonSeon Han <yoonseon at onlab.us>
> Cc: users at openoverlayrouter.org
> Subject: Re: [OOR-Users] About mobility support based on OOR (LISP)
> Message-ID:
> 	<CA+YHcKHKnCj=Ekm14C7E++=KJAZaRYSA=qzddNWT_JVuzXxYZA at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
> 
> Hi YoonSeon,
> 
> There is a NETCONF interface to configure OOR on runtime that you may want
> to take a look at.
> 
> https://github.com/OpenOverlayRouter/oor/tree/master/netconf
> 
> Unfortunately, I'm afraid that it is targeted only towards xTR config at
> this point. However, extending it for MS support should be feasible in case
> you want to give it a try.
> 
> Another option you can look into would be to use OOR in combination with
> OpenDaylight serving as MS/MR.
> 
> https://wiki.opendaylight.org/view/OpenDaylight_Lisp_Flow_Mapping:Main
> 
> Hope this helps,
> Alberto
> 
> On Mon, Sep 19, 2016 at 4:54 PM, YoonSeon Han <yoonseon at onlab.us> wrote:
> 
>> Dear OOR contributors,
>> 
>> Hi, I'm Yoonseon Han who interested in to use LISP for my mobility
>> support.
>> Now, I'm doing a small project to support virtual machine mobility.
>> 
>> My question is how can I add new VM mapping info. to local OOR database?
>> For example, Host A is migrated from xTR1 to xTR2.
>> Then, I need to remove the mapping information at xTR1, and add new
>> mapping to xTR2, as well as mapping system.
>> But, I cannot find a command or interface to access OOR local database.
>> 
>> The only way for my case is
>>  1) turn off OOR
>>  2) edit OOR.conf fie with new mapping db.
>>  3) turn on OOR again
>> 
>> Is there any way to change local data base dynamically such as CLI, REST,
>> or other interface?
>> Best regards.
>> 
>> /Yoonseon Han
>> 
>> 
>> _______________________________________________
>> Users mailing list
>> Users at openoverlayrouter.org
>> http://mail.openoverlayrouter.org/cgi-bin/mailman/listinfo/users
>> 
>> 
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> ------------------------------
> 
> Message: 2
> Date: Tue, 20 Sep 2016 11:33:56 +0200
> From: Albert López <alopez at ac.upc.edu>
> To: Holger Zuleger <Holger.Zuleger at hznet.de>,
> 	users at openoverlayrouter.org
> Subject: Re: [OOR-Users] Problems configuring oor on a openwrt router
> Message-ID: <03d3e052-a346-72e6-714c-b8e313a54423 at ac.upc.edu>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
> 
> Hi,
> 
> I have tried the rloc probe with our Cisco box and it replies our Map 
> Request Probe messages:
> 
> Sep 20 08:41:10.936: LISP: Received map request for IID 0 0.0.0.0/32, 
> source_eid UNSPEC, ITR-RLOCs: 84.88.81.70, records 1, nonce 
> 0x36FFE15F-0x17B6CF26, probe
> Sep 20 08:41:10.936: LISP: Processing map request record for EID prefix 
> IID 0 0.0.0.0/32
> Sep 20 08:41:10.936: LISP-0: IID 0 No local EID prefix covering map 
> request for 0.0.0.0/32.
> Sep 20 08:41:10.940: LISP-0: Sending dummy map-reply from 147.83.131.33 
> to 84.88.81.70.
> 
> May be the difference is that my box is only configured as a PeTR
> 
> Anyway, I have checked how Cisco boxes send Map Request Probe to PeTR 
> and they use 0.0.0.0/0 instead of 0.0.0.0/32. I have generated a new ipk 
> file which will request for this EID prefix.
> 
> Could you try and let me know if it works with this change.
> 
> Best regards
> 
> Albert
> 
> 
> On 20/09/16 00:12, Holger Zuleger wrote:
>> Hi again,
>> 
>>>> In your configuration you have rloc-probing enabled. The xTR node is
>>>> 
>>>> sending probe messaged to the PeTR node but it doesn't receive any reply
>>>> and after three retries it sets the RLOC of the PeTR to not reachable.
>>> Ok, makes sense. Sorry this is something I could/should have found out
>>> myself.
>> ...
>> 
>>> I will test the proposed config change later today and give you a
>>> feedback if it was successful.
>> Indeed this was the problem. Turning off the probing solved it.
>> 
>> But I was a bit confused why the PeTR are not responding to the probe
>> messages, and turned the lisp debugging on.
>> 
>> When the oor router sends a probe message...
>> 
>> [2016/9/19 22:29:33] DEBUG: Retry Map-Request Probe for locator
>> 109.235.46.40 and EID: 0.0.0.0/32 (2 retries)
>> 
>> I see something like this in the Cisco debug (the timers are not
>> consistently, but I'm pretty sure that the output is related to the
>> probe message):
>> 
>> Sep 19 21:29:23.957: LISP: Received map request for IID 0 0.0.0.0/32,
>> source_eid UNSPEC, ITR-RLOCs: 185.122.6.142, records 1, nonce
>> 0x203CFDA2-0x77FCFDBB, probe
>> Sep 19 21:29:23.957: LISP: Processing map request record for EID prefix
>> IID 0 0.0.0.0/32
>> Sep 19 21:29:23.957: LISP-0: IID 0 No local EID prefix covering map
>> request for 0.0.0.0/32.
>> 
>> Later on the oor router give up with:
>> [2016/9/19 22:29:38] DEBUG: rloc_probing: No Map-Reply Probe received
>> for locator 109.235.46.40 and EID: 0.0.0.0/32 -> Locator state changes
>> to DOWN
>> 
>> So two question came up in my mind
>> 1) Is the common way to probe a PeTR to send a map request for EID
>> 0.0.0.0/32, and why is the src_EID unspecified?
>> 2) Does it mean I have to install a local mapping for this on the PeTR
>> router? And if yes how does it look like?
>> 
>> Best Regards
>>  Holger
>> 
> 
> 
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