[j-nsp] Question about 100 Gbps MPC4E

Sat Feb 7 14:30:03 EST 2015

Thanks – I’m really not sure to be honest … just seen some weird bugs with LAG over the years and thought it might be worthwhile to eliminate for testing purposes.  This way you at least have one less thing to consider as the source of the issue.

I haven’t seen anything like this in 13.3R2 but just getting involved with my first MPC4E 100G port deployments this week so was kind of curious….

Cheers,

Paul

From: Giuliano Medalha [mailto:giuliano at wztech.com.br] 
Sent: Friday, February 6, 2015 12:19 PM
To: Paul Stewart
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] Question about 100 Gbps MPC4E

Paul, we didnt do this test.

We can do it ... 

But we will need to run in ae5, because the traffic is very high today 90 Gbps and will rise a lot for the next few months.

The junos version is 13.3R2.

Do you think that ae5 configuration is not helping ?

We did the same test, on the same box, with 12 x 10G SFPP (MPC4E) and it works fine.

Thanks a lot,

Giuliano

Giuliano Cardozo Medalha
Systems Engineer
+55 (17) 3011-3811

+55 (17) 98112-5394
JUNIPER J-PARTNER ELITE
giuliano at wztech.com.br <mailto:giuliano at wztech.com.br> 
http://www.wztech.com.br/

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On Fri, Feb 6, 2015 at 3:01 PM, Paul Stewart <paul at paulstewart.org <mailto:paul at paulstewart.org> > wrote:

If you take the 100G port out of LAG does it have any impact on the issue you are seeing?  Can you share software version you are running?

Thanks,
Paul

-----Original Message-----
From: juniper-nsp [mailto:juniper-nsp-bounces at puck.nether.net <mailto:juniper-nsp-bounces at puck.nether.net> ] On Behalf Of Giuliano Medalha
Sent: Friday, February 6, 2015 4:35 AM
To: Adam Vitkovsky
Cc: juniper-nsp at puck.nether.net <mailto:juniper-nsp at puck.nether.net> 
Subject: Re: [j-nsp] Question about 100 Gbps MPC4E

Adam,

Sorry about delay to answer this post.

We are trying to connect our JUNIPER MX960 router to a IX (Internet Exchange Point).

Once you are connected for the first time, the guys from the IX did a simple test (linux script) .. similar to an limited ARP Spoofing on every single physical port to evaluate the number of MAC answers supported for the router (minimum accepted is 1200). They will connect you to L2 main matrix.

We have another board on this router ... same MPC4E with 32 x 10G SFPP interfaces.  When we did the same ARP Spoofing test using a LAG with 8 x 10G interfaces ... it works fine.

With the new MPC4E board (2 x 100G + 8 x 10G SFPP) the test is not working.
The 100G (et-x/x/x) interface configured inside an AEx logical interface does not answer more than 80 MACs ...

We did every single configuration possible on this board ... but nothing is working.

The router learns the 1200 MACs ... but the answer does not return to the pc machine tester.

I was thinking about some special configuration for this board to do it to work. JUNIPER said that there is not any special configuration needed.

Today we will do a simple test using ettercap and a switch with 10G connections directly to the new board to see if we got something different.

Thanks a lot,

Giuliano

Giuliano Cardozo Medalha
Systems Engineer
+55 (17) 3011-3811
+55 (17) 98112-5394
JUNIPER J-PARTNER ELITE
giuliano at wztech.com.br <mailto:giuliano at wztech.com.br> 
http://www.wztech.com.br/

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As informações deste e-mail e o conteúdo dos  eventuais  documentos anexos são confidenciais e para conhecimento exclusivo do destinatário. Se o leitor  desta  mensagem  não  for o seu destinatário, fica desde já notificado de que não poderá  divulgar,  distribuir ou, sob qualquer forma, dar conhecimento a terceiros das informações e do conteúdo dos documentos anexos. Neste caso, favor comunicar imediatamente o remetente, respondendo este e-mail ou telefonando ao mesmo, e em seguida apague-o.

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The information transmitted in this email message and any attachments are solely for the intended recipient and may contain confidential or privileged information. If you are not the intended recipient, any review, transmission,  dissemination or other use of this information is prohibited. If you have received this communication in error, please notify the sender immediately and delete the material from any computer, including any copies.

On Fri, Jan 30, 2015 at 6:53 AM, Adam Vitkovsky <avitkovsky at gammatelecom.com <mailto:avitkovsky at gammatelecom.com> 
> wrote:

> Hello Giuliano,
>
> I somehow did not get what is not working exactly?
> Are the ports not coming up? Is the LACP not coming up? Or you can't
> pass frames between the VLANs?
>
> adam
> > -----Original Message-----
> > From: juniper-nsp [mailto:juniper-nsp-bounces at puck.nether.net <mailto:juniper-nsp-bounces at puck.nether.net> ] On
> > Behalf Of Giuliano Medalha
> > Sent: 30 January 2015 01:13
> > To: juniper-nsp at puck.nether.net <mailto:juniper-nsp at puck.nether.net> 
> > Subject: [j-nsp] Question about 100 Gbps MPC4E
> >
> > People,
> >
> > We have a router (MX960) with the following MPC4E board (with SCBE2):
> >
> > http://www.juniper.net/documentation/en_US/release-
> > independent/junos/topics/reference/general/mpc4e-2x100ge-8x10ge.html
> >
> >
> > We are using it configured as aggregated ethernet AE3 (with LACP)
> > connecting to a CISCO ASR9000 router (minimum-links 1 and link-speed
> > 100g with MTU 9192) using flexible-vlan-tagging and 2 vlans (unit
> > 100 and unit 200).
> >
> > I have found some specific documents about running this board on a
> special
> > way called SA-MULTICAST.
> >
> > http://www.juniper.net/techpubs/en_US/junos14.2/topics/task/configur
> > ati on/interfaces-mpc4e-100-ge-interop-sa-multicast.html
> >
> > My question is ... there is some special way to configure this board
> > to talk with CISCO ASR9000 board ? Does cisco needs this king of
> > configuration on juniper to work ?
> >
> > Something like 2 aggregated of 50 Gbps interfaces ? et-4/0/1:0
> > et-4/0/1:1
> >
> > Do you have something similar in your backbones ? Its necessary to
> > do some special config or adjustment ?
> >
> > There is some MAC-LEARNING limit configured by default on this board ?
> >
> > Could you please help me how to find the correct way to put it to work ?
> >
> > Thanks a lot,
> >
> > Giuliano
> > _______________________________________________
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