Hello, Has anyone managed to get the 40G QSFP+ to 4 SFP+ breakout cable to work on the 2X40GE QSFPP Juniper MICs? Which commands did you use to channelize the port under the "chassis fpc" mode to get it to channelize to 4x10g at least for one 40G port on that MIC? My device : MX960. On a side note, 40G modules/ports are a waste from a design perspective. Thanks in advance Regards Paschal Masha | Engineering Skype ID: paschal.masha
Hi, Not all MPCs support breakouts. You can check on the ability with of the PIC and what speeds it can breakout. show chassis pic fpc-slot <fpc> pic-slot <pic> Output on a MPC7E-MRATE will show the following. For example, while the MPC7E-MRATE supports 4x10 breakouts, it doesn’t support 4x25 on a 100G capable port. mx> show chassis pic fpc-slot 4 pic-slot 0 | find "Port speed information" Port speed information: Port PFE Capable Port Speeds 0 0 4x10GE, 40GE 1 0 4x10GE, 40GE 2 0 4x10GE, 40GE, 100GE 3 0 4x10GE, 40GE 4 0 4x10GE, 40GE 5 0 4x10GE, 40GE, 100GE {master} mx> If the PIC can handle it, the port can be configured by setting it to 10G. mx> show configuration chassis fpc 4 pic 1 port 0 | display set set chassis fpc 4 pic 1 port 0 speed 10g Hope that helps, -- Trent From: NANOG <nanog-bounces+trent=dingo.net.au@nanog.org> On Behalf Of Paschal Masha Sent: Thursday, February 24, 2022 16:47 To: nanog <nanog@nanog.org> Subject: 40G QSFP+ to 4 SFP+ on MX960 Hello, Has anyone managed to get the 40G QSFP+ to 4 SFP+ breakout cable to work on the 2X40GE QSFPP Juniper MICs? Which commands did you use to channelize the port under the "chassis fpc" mode to get it to channelize to 4x10g at least for one 40G port on that MIC? My device : MX960. On a side note, 40G modules/ports are a waste from a design perspective. Thanks in advance Regards Paschal Masha | Engineering Skype ID: paschal.masha <http://zuku.co.ke/es/sig_img.jpg>
I would go as far to say that even if somebody gives you *free* 40G equipment in the year 2022 you shouldn't use it, because it's a technological dead-end and becomes a huge bother when you need to interface with some newly purchased device on the other end of the 40G circuit. There's a reason why 40G anything is so cheap on eBay and 40G ports are incredibly rare at the world's major IX points. On Thu, 24 Feb 2022 at 13:47, Paschal Masha <paschal.masha@ke.wananchi.com> wrote:
Hello,
Has anyone managed to get the 40G QSFP+ to 4 SFP+ breakout cable to work on the 2X40GE QSFPP Juniper MICs?
Which commands did you use to channelize the port under the "chassis fpc" mode to get it to channelize to 4x10g at least for one 40G port on that MIC?
My device : MX960.
On a side note, 40G modules/ports are a waste from a design perspective.
Thanks in advance
Regards Paschal Masha | Engineering Skype ID: paschal.masha
On Fri, 25 Feb 2022 at 01:03, Eric Kuhnke <eric.kuhnke@gmail.com> wrote: Hey Eric, I would go as far to say that even if somebody gives you *free* 40G
equipment in the year 2022 you shouldn't use it, because it's a technological dead-end and becomes a huge bother when you need to interface with some newly purchased device on the other end of the 40G circuit.
Then you went too far. For many users the 40G port is there to increase 10G density, by offering 4x10GE breakout. It is already difficult to support 1GE customers and 10GE is starting to become problematic. But SP networks actually have these customers, and not every application on the Internet will always need more and more capacity, so many of these customers have no requirement to ever purchase faster ports. If you live in cloudyworld, sure, denser and faster. But this mode of thinking is making life at SP networks rather difficult. -- ++ytti
On 2/25/22 09:04, Saku Ytti wrote:
Then you went too far. For many users the 40G port is there to increase 10G density, by offering 4x10GE breakout. It is already difficult to support 1GE customers and 10GE is starting to become problematic. But SP networks actually have these customers, and not every application on the Internet will always need more and more capacity, so many of these customers have no requirement to ever purchase faster ports.
If you live in cloudyworld, sure, denser and faster. But this mode of thinking is making life at SP networks rather difficult.
100%. New boxes from Juniper that have shipped with a minimum of 10Gbps when we still have 1Gbps use-cases has meant we've put orders off. 12 months later, they have new iterations of the boxes now allowing for all the way down to 1Gbps. CloudyWorld is giving OEM's the impression that NetworkWorld also have the same requirements. It's good to see some OEM's are getting back to their roots, but it's not easy work. DWDM vendors are the worst, because they look at all orders with DCI eye glasses. Mark.
On Fri, Feb 25, 2022 at 3:59 AM Mark Tinka <mark@tinka.africa> wrote:
On 2/25/22 09:04, Saku Ytti wrote:
Then you went too far. For many users the 40G port is there to increase 10G density, by offering 4x10GE breakout. It is already difficult to support 1GE customers and 10GE is starting to become problematic. But SP networks actually have these customers, and not every application on the Internet will always need more and more capacity, so many of these customers have no requirement to ever purchase faster ports.
If you live in cloudyworld, sure, denser and faster. But this mode of thinking is making life at SP networks rather difficult.
100%.
New boxes from Juniper that have shipped with a minimum of 10Gbps when we still have 1Gbps use-cases has meant we've put orders off. 12 months later, they have new iterations of the boxes now allowing for all the way down to 1Gbps.
Check out the Adva MicroMux Nano for this use case if you haven't already. 10x 1g in a single 10g transceiver using a 24S MPO. They also have a 10x 10g in a single QSFP28 as well.
CloudyWorld is giving OEM's the impression that NetworkWorld also have the same requirements. It's good to see some OEM's are getting back to their roots, but it's not easy work.
DWDM vendors are the worst, because they look at all orders with DCI eye glasses.
Mark.
-- [stillwaxin@gmail.com ~]$ cat .signature cat: .signature: No such file or directory [stillwaxin@gmail.com ~]$ cat all-opinions-are-my-own All opinions are my own and do not represent any of my employer.
Any idea if Juniper will support that on MX? On Sat, 26 Feb 2022 at 03:35, Michael Still <stillwaxin@gmail.com> wrote:
On Fri, Feb 25, 2022 at 3:59 AM Mark Tinka <mark@tinka.africa> wrote:
On 2/25/22 09:04, Saku Ytti wrote:
Then you went too far. For many users the 40G port is there to increase 10G density, by offering 4x10GE breakout. It is already difficult to support 1GE customers and 10GE is starting to become problematic. But SP networks actually have these customers, and not every application on the Internet will always need more and more capacity, so many of these customers have no requirement to ever purchase faster ports.
If you live in cloudyworld, sure, denser and faster. But this mode of thinking is making life at SP networks rather difficult.
100%.
New boxes from Juniper that have shipped with a minimum of 10Gbps when we still have 1Gbps use-cases has meant we've put orders off. 12 months later, they have new iterations of the boxes now allowing for all the way down to 1Gbps.
Check out the Adva MicroMux Nano for this use case if you haven't already. 10x 1g in a single 10g transceiver using a 24S MPO. They also have a 10x 10g in a single QSFP28 as well.
CloudyWorld is giving OEM's the impression that NetworkWorld also have the same requirements. It's good to see some OEM's are getting back to their roots, but it's not easy work.
DWDM vendors are the worst, because they look at all orders with DCI eye glasses.
Mark.
-- [stillwaxin@gmail.com ~]$ cat .signature cat: .signature: No such file or directory [stillwaxin@gmail.com ~]$ cat all-opinions-are-my-own All opinions are my own and do not represent any of my employer.
--
M Tees
On 2/25/22 18:11, Michael Still wrote:
Check out the Adva MicroMux Nano for this use case if you haven't already. 10x 1g in a single 10g transceiver using a 24S MPO. They also have a 10x 10g in a single QSFP28 as well.
We tend to avoid such solutions because we are now introducing a whole other device into the mix, which can be a problem when you are talking about tons of devices across tons of PoP's. We rank it right up there with media converters :-). But certainly a solution to consider if it makes sense to you. Mark.
❦ 25 February 2022 00:46 +03, Paschal Masha:
Has anyone managed to get the 40G QSFP+ to 4 SFP+ breakout cable to work on the 2X40GE QSFPP Juniper MICs?
Which commands did you use to channelize the port under the "chassis fpc" mode to get it to channelize to 4x10g at least for one 40G port on that MIC?
That's explained here: https://www.juniper.net/documentation/us/en/software/junos/interfaces-ethern... "set chassis fpc 0 pic 0 port 0 speed 10g" enables the split to 4x10G. You should get xe-0/0/0:0, xe-0/0/0:1, xe-0/0/0:2 and xe-0/0/0:3. The "number-of-sub-ports" is not mandatory (at least on MX10003, never tried on MX960). -- If you tell the truth you don't have to remember anything. -- Mark Twain
40G modules/ports are a waste from a design perspective. Agree I have many cards of 40G laying around used them for 6 months and swapped them out On Thu, Feb 24, 2022 at 4:47 PM Paschal Masha <paschal.masha@ke.wananchi.com> wrote:
Hello,
Has anyone managed to get the 40G QSFP+ to 4 SFP+ breakout cable to work on the 2X40GE QSFPP Juniper MICs?
Which commands did you use to channelize the port under the "chassis fpc" mode to get it to channelize to 4x10g at least for one 40G port on that MIC?
My device : MX960.
On a side note, 40G modules/ports are a waste from a design perspective.
Thanks in advance
Regards Paschal Masha | Engineering Skype ID: paschal.masha
participants (9)
-
Craig -
Eric Kuhnke -
Mark Tees -
Mark Tinka -
Michael Still -
Paschal Masha -
Saku Ytti -
trent＠dingo.net.au -
Vincent Bernat