Junos
Highlighted
Junos

Interface connection to PFE

‎02-11-2020 03:52 PM
Hi, Is there a way for me to find out which PFE an interface is connected to in a Juniper Networks router? Thanks, P
11 REPLIES 11
Highlighted
Junos

Re: Interface connection to PFE

‎02-11-2020 04:36 PM

Hi pluu!

 

 Are you referring to which logical interface? Could you also indicate the platform you are using?

 

Thanks

Esteban,

Highlighted
Junos

Re: Interface connection to PFE

‎02-11-2020 05:20 PM

Platform: PTX10001

Highlighted
Junos

Re: Interface connection to PFE

‎02-11-2020 07:01 PM

It's physical interface, not logical interface.

Highlighted
Junos

Re: Interface connection to PFE

‎02-11-2020 07:03 PM

Hi Pluu,

PTX10001 is a single PFE system, that means all the interface are mapped to PFE0.

PS: Please accept my response as solution if it answers your query, kudos are appreicated too!

Thanks
Vishal

Highlighted
Junos

Re: Interface connection to PFE

‎02-11-2020 09:18 PM

Do you know the command to determine which PFE has which interface ports? I did 'show pfe id info', and it shows 3 active PFEs; though the first Active PFE is 0.

login@routerSmiley Tonguefe> show pfe id info

First Active PFE            : 0

Effective First Active PFE  : 0

Number of Active PFEs       : 3

Pfe Mask                    : 0x0000000000000007

 

PFE-ID   Down-Flags   Global PFE-ID   PFE-State   PFE-Name

------   ----------   -------------   ---------   --------

   0         0             0            ONLINE    /Chassis[0]/Fpc[0]/Pfe[0]

   1         0             2            ONLINE    /Chassis[0]/Fpc[0]/Pfe[2]

   2         0             4            ONLINE    /Chassis[0]/Fpc[0]/Pfe[4]

Junos

Re: Interface connection to PFE

‎02-12-2020 01:49 AM

Hi,

maybe you can do something with the (a bit postprocessed) output from "show pfe next-hop" when filtering for your in use interface types (ether?!). Atm. I don't have a representative system at hand to try though.

Regards

Ulf

--
If this worked for you please flag my post as an 'Accepted Solution' so others can benefit. A kudo would be cool if you think I earned it.
Highlighted
Junos

Re: Interface connection to PFE

‎02-12-2020 07:41 AM

Can you please share "show chassis hardware" output


Highlighted
Junos

Re: Interface connection to PFE

‎02-12-2020 10:45 AM
root@router> show chassis hardware
Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                AAA888             JNP10001-36MR [PTX10001-36MR]
PSM 0            REV 03   777-000      11111111           AC AFO 3000W PSU
Routing Engine 0 REV 04   777-000      BBBBBB             Routing Engine
CB 0             REV 11   777-000      BBBBBB             Control Board
FPC 0                     BUILTIN      BUILTIN            FPC
  PIC 0                   BUILTIN      BUILTIN            JNP10001-36MR-PIC
    Xcvr 0       REV 01   444-000      AAAAA              QSFP+-40G-SR4
    Xcvr 2       REV 01   444-000      AAAAA              QSFP+-40G-SR4
    Xcvr 12      0        NON-JNPR
    Xcvr 13      0        NON-JNPR
    Xcvr 14      0        NON-JNPR    
    Xcvr 15      0        NON-JNPR
    Xcvr 16      0        NON-JNPR
    Xcvr 17      0        NON-JNPR
    Xcvr 18      0        NON-JNPR
    Xcvr 19      0        NON-JNPR
    Xcvr 20      0        NON-JNPR
    Xcvr 21      0        NON-JNPR
    Xcvr 22      0        NON-JNPR
    Xcvr 23      0        NON-JNPR
    Xcvr 24      0        NON-JNPR
    Xcvr 25      0        NON-JNPR
    Xcvr 26      0        NON-JNPR
    Xcvr 27      0        NON-JNPR 
    Xcvr 28      0        NON-JNPR
    Xcvr 29      0        NON-JNPR
    Xcvr 30      0        NON-JNPR
    Xcvr 31      0        NON-JNPR
    Xcvr 32      0        NON-JNPR
    Xcvr 33      0        NON-JNPR
    Xcvr 34      0        NON-JNPR
    Xcvr 35      0        NON-JNPR    
SIB 0                     BUILTIN      BUILTIN           SIB-XXXP00000-00AA
Fan Tray 0                                               JNP10001 Fan Tray, Front to Back Airflow - AFO
Fan Tray 1                                               JNP10001 Fan Tray, Front to Back Airflow - AFO
Fan Tray 2                                               JNP10001 Fan Tray, Front to Back Airflow - AFO
Fan Tray 3                                               JNP10001 Fan Tray, Front to Back Airflow - AFO
Fan Tray 4                                               JNP10001 Fan Tray, Front to Back Airflow - AFO
Fan Tray 5                                               JNP10001 Fan Tray, Front to Back Airflow - AFO
Highlighted
Junos
Solution
Accepted by topic author pluu
‎02-12-2020 05:09 PM

Re: Interface connection to PFE

‎02-12-2020 11:31 AM

are you able to run this command from pfe:

 

​show mtip-mac summary

I think you should see the PFE in Chip/Asic column

Highlighted
Junos

Re: Interface connection to PFE

[ Edited ]
‎02-12-2020 01:38 PM

@vlsingh:

 

Yes, I think 'show mtip-mac summary' is the correct command to figure out what port is connected to what PFE.
Output is below, please let me know if my interpretation is correct.

 

Ports 1-12   (indicated by Index column) connects to PFE 0 (indicated by PECHIP column)

Ports 13-24 (indicated by Index column) connects to PFE 1 (indicated by PECHIP column)

Ports 25-36 (indicated by Index column) connects to PFE 2 (indicated by PECHIP column)

Why is port being called Index?

 

root@router::pfe> show mtip-mac summary
                     MTIP CHMAC Summary
 Index   Name    PECHIP PORTNR  MAC-Inst  MAC-Ch MAC-TYPE
  1                0     5        0         0      MTIP_40GE_XLAUI
  2                0     6        0         0      MTIP_40GE
  3                0     7        0         0      MTIP_40GE_XLAUI
  4                0     8        0         0      MTIP_40GE
  5                0     4        0         0      MTIP_100GE
  6                0     4        1         0      MTIP_100GE
  7                0     4        2         0      MTIP_100GE
  8                0     4        3         0      MTIP_100GE
  9                0     3        0         0      MTIP_40GE
  10               0     2        0         0      MTIP_40GE
  11               0     1        0         0      MTIP_40GE
  12               0     0        0         0      MTIP_40GE
  13               1     5        0         0      MTIP_40GE
  14               1     6        0         0      MTIP_40GE
  15               1     7        0         0      MTIP_40GE
  16               1     8        0         0      MTIP_40GE
  17               1     4        0         0      MTIP_100GE
  18               1     4        1         0      MTIP_100GE
  19               1     4        2         0      MTIP_100GE
  20               1     4        3         0      MTIP_100GE
  21               1     3        0         0      MTIP_40GE
  22               1     2        0         0      MTIP_40GE
  23               1     1        0         0      MTIP_40GE
  24               1     0        0         0      MTIP_40GE
  25               2     5        0         0      MTIP_40GE
  26               2     6        0         0      MTIP_40GE
  27               2     7        0         0      MTIP_40GE
  28               2     8        0         0      MTIP_40GE
  29               2     4        0         0      MTIP_100GE
  30               2     4        1         0      MTIP_100GE
  31               2     4        2         0      MTIP_100GE
  32               2     4        3         0      MTIP_100GE
  33               2     3        0         0      MTIP_40GE
  34               2     2        0         0      MTIP_40GE
  35               2     1        0         0      MTIP_40GE
  36               2     0        0         0      MTIP_40GE

Steps to see what port is connected to what PFE:

1) Log into VTY mode from shell: ~# vty

2) > show mtip-mac summary


Thank you

Highlighted
Junos

Re: Interface connection to PFE

‎02-12-2020 01:59 PM

Hi Pluu,

Yes your interpretation is correct regarding port to pfe mapping. Why its called index only a developer can answer Smiley Happy

 

        Ports 1-12   (indicated by Index column) connects to PFE 0 (indicated by PECHIP column)

        Ports 13-24 (indicated by Index column) connects to PFE 1 (indicated by PECHIP column)

        Ports 25-36 (indicated by Index column) connects to PFE 2 (indicated by PECHIP column)

PS: Please accept my answer as solution if it answers your query, kuods are appreciated too!

Thanks
Vishal