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Rate-select on MPC7 on mx960

‎05-19-2020 02:37 AM

Hi there,

 

I have an mx960 with MPC MPC7E 3D MRATE-12xQSFPP-XGE-XLGE-CGE installed in fpc 2

 

FPC 2 REV 46 xxxx xxxx MPC7E 3D MRATE-12xQSFPP-XGE-XLGE-CGE
  CPU REV 21 xxxx xxxx SMPC PMB
  PIC 0 BUILTIN BUILTIN MRATE-6xQSFPP-XGE-XLGE-CGE
          Xcvr 2 REV 01 xxxx xxxx QSFP-100GBASE-LR4
          Xcvr 5 REV 01 xxx xxx QSFP-100GBASE-LR4

   PIC 1 BUILTIN BUILTIN MRATE-6xQSFPP-XGE-XLGE-CGE

 

 

Now i want to use some ports on PIC1:

What was done:

1)set speed on port 0,1,3

 

[edit chassis fpc 2]
+    pic 1 {
+        port 0 {
+            speed 40g;
+        }
+        port 1 {
+            speed 40g;
+        }
+        port 3 {
+            speed 40g;
+        }
+    }

reset line-card on pic1

 request chassis pic pic-slot 1 fpc-slot 2 offline
fpc 2 pic 1 offline initiated, use "show chassis fpc pic-status" to verify

and

show chassis fpc pic-status
Slot 1   Online       MPC4E 3D 32XGE
  PIC 0  Online       8X10GE SFPP
  PIC 1  Online       8X10GE SFPP
  PIC 2  Online       8X10GE SFPP
  PIC 3  Online       8X10GE SFPP
Slot 2   Online       MPC7E 3D MRATE-12xQSFPP-XGE-XLGE-CGE
  PIC 0  Online       MRATE-6xQSFPP-XGE-XLGE-CGE
  PIC 1  Online       MRATE-6xQSFPP-XGE-XLGE-CGE

No alarms.

I than insert on port et-2/1/0 this sfp

40G QSFP+ LR4 LC

But I can not see it from show chassis hardware.

Port is created but no optics visible

 

show interfaces et-2/1/0
Physical interface: et-2/1/0, Enabled, Physical link is Down
Interface index: 196, SNMP ifIndex: 798
Link-level type: Ethernet, MTU: 1514, MRU: 1522, Speed: 40Gbps, BPDU Error: None, Loop Detect PDU Error: None, Loopback: Disabled, Source filtering: Disabled,
Flow control: Enabled

 

Any idea if i am missing something?

Thanks.

 

10 REPLIES 10
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Re: Rate-select on MPC7 on mx960

‎05-19-2020 03:18 AM

Hi FabNewCert, 

 

Did you try resetting the pic after inserting the SFP?

 

Regards,
Sharat

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Re: Rate-select on MPC7 on mx960

‎05-19-2020 03:35 AM

yes

request chassis pic pic-slot 1 fpc-slot 2 offline
fpc 2 pic 1 offline initiated, use "show chassis fpc pic-status" to verify

 

show chassis fpc pic-status
Slot 1 Online MPC4E 3D 32XGE
PIC 0 Online 8X10GE SFPP
PIC 1 Online 8X10GE SFPP
PIC 2 Online 8X10GE SFPP
PIC 3 Online 8X10GE SFPP
Slot 2 Online MPC7E 3D MRATE-12xQSFPP-XGE-XLGE-CGE
PIC 0 Online MRATE-6xQSFPP-XGE-XLGE-CGE
PIC 1 Offline MRATE-6xQSFPP-XGE-XLGE-CGE

 

request chassis pic pic-slot 1 fpc-slot 2 online
fpc 2 pic 1 online initiated, use "show chassis fpc pic-status" to verify

 

did not work, but thanks for the comment.

 

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Re: Rate-select on MPC7 on mx960

‎05-19-2020 03:36 AM

Hi FabNewCert,

 

Can you confirm the status of LEDs(Red/Green/Amber) on the component faceplate indicate that the SFP is functioning correctly?

 

Also, please make sure you have followed proper steps while removing/inserting the SFPs into the slots. The below document has them listed:

https://www.juniper.net/documentation/en_US/release-independent/junos/topics/task/installation/sfp-x...

 

To rule out an issue with physical port, you can try using the same SFP on the other ports say et-2/1/1 or et-2/1/2 and verify if the optic comes up. If SFP comes up in other ports and not on this specific one, you may want to perform loopback testing.

You can refer https://www.juniper.net/documentation/en_US/junos/topics/topic-map/ethernet-fast-and-gigabit-loopbac... for the same to verify if the port is faulty.

 

Hope this helps 🙂

 

Please mark "Accepted Solution" if this works for you.

Kudos are much appreciated 🙂

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Re: Rate-select on MPC7 on mx960

‎05-19-2020 03:58 AM

Hi FabNewCert,

 

Can you share below ouputs.

 

>show configuration chassis

>show chassis alarms

 

 

If this solves your problem, please mark this post as "Accepted Solution" so we can help others too

 

Kudos are appreciated too 

 

 

Regards,

Nadeem

 

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Re: Rate-select on MPC7 on mx960

‎05-19-2020 04:11 AM

show config chassis is this (trunked)

 

FPC 2 REV 46 xxxx xxxx MPC7E 3D MRATE-12xQSFPP-XGE-XLGE-CGE
CPU REV 21 xxxx xxxx SMPC PMB
PIC 0 BUILTIN BUILTIN MRATE-6xQSFPP-XGE-XLGE-CGE
Xcvr 2 REV 01 xxxx xxxx QSFP-100GBASE-LR4
Xcvr 5 REV 01 xxx xxx QSFP-100GBASE-LR4

PIC 1 BUILTIN BUILTIN MRATE-6xQSFPP-XGE-XLGE-CGE

 

 

No alarm on chassis

 

show chassis alarms
No alarms currently active

{master}

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Re: Rate-select on MPC7 on mx960

[ Edited ]
‎05-19-2020 04:13 AM

forgot to say that i am using a flexoptics optic which were programmed as JNP-QSFP-40GLR4 

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Re: Rate-select on MPC7 on mx960

‎05-19-2020 04:30 AM

Hi FabNewCert, 

 

Just a thought, can you try using a spare optic and inserting it into that port?

Idea is to check if this QSFP is support or not. If you could insert a say working QSFP from the other PIC into port et-2/1/0 it would confirm the same. PS: We might have to reboot PIC once we have the QSFP inserted.

 

Regards,
Sharat

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Solution
Accepted by topic author FabNewCert
‎05-19-2020 05:23 AM

Re: Rate-select on MPC7 on mx960

[ Edited ]
‎05-19-2020 04:36 AM

Hello FabNewCert,

 

Can you quickly try below troubleshooting steps and update:

 

  1. Firstly, offline the PIC 1 and physically remove the optics, clean it, and insert it back.
  2. Check for the active alarms on the device: show interfaces et-2/1/0 extensive |match active 
  3. I see the Physical Link is down on the interface, can you check if the peer end device is up and working?
  4. If there is no issue with the peer end, then perform a Softloop/hard-loop using below documentation :

https://www.juniper.net/documentation/en_US/junos/topics/topic-map/ethernet-fast-and-gigabit-loopbac...

 

If the Link comes up when you perform a Softloop/hardloop then the optics you are using is good and stable.

If the Links remains DOWN, then the issue is with the optics.

 

     5. You check the optics by inserting in another port slot of the same FPC or different to isolate the issue.

    6. Also, you can insert a well known working optics in the et-2/1/0 to narrow down the issue.

    7. Then reboot the PIC and see if it works.

    8. Lastly, if the results are not favorable, then reboot the whole FPC 2 to initialize all the PIC's and ports and check the behavior.

 

Once you perform the above steps, please provide us the below outputs:

  1.  show interfaces et-2/1/0 extensive
  2. show interfaces diagnostics optics et-2/1/0
  3. show chassis alarms
  4. show chassis fpc detail

I hope this helps. Please mark this post "Accept as solution" if this answers your query.

 

Kudos are always appreciated! Smiley Happy

 

Best Regards,

Lingabasappa H

 

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Re: Rate-select on MPC7 on mx960

‎05-19-2020 05:23 AM

ok solution was very simpler: the technician installed the optics in the wrong port....btw thanks for the valuable info and effort.

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Re: Rate-select on MPC7 on mx960

‎05-19-2020 05:31 AM

Hello  FabNewcert,

 

We are glad that you were able to resolve the issue and Thanks for accepting my solution.

 

BR,

Lingabasappa

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