Maintaining MX2020 Packet Forwarding Engine Components

Purpose

The router can have up to 20 Modular Port Concentrators (MPCs) mounted vertically in the MPC card cage at the front of the chassis. For optimum router performance, verify the condition of the MPCs.

Action

On a regular basis:

• Check the LEDs on the craft interface directly above each MPC slot. The green LED labeled OK lights steadily when a MPC is functioning normally.

• Check the OK/FAIL LED on the MPC. For more information, see MX Series Interface Module Reference. If the MPC detects a failure, the MPC sends an alarm message to the Routing Engine.

• Check the status of installed MPCs by issuing the CLI show chassis fpc command to check the status of installed MPCs. As shown in the sample output, the value Online in the column labeled State indicates that the MPC is functioning normally:

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  user@host> show chassis fpc
                Temp  CPU Utilization (%)   Memory    Utilization (%)
  Slot State            (C)  Total  Interrupt      DRAM (MB) Heap     Buffer
    0  Empty
    1  Empty
    2  Empty
    3  Empty
    4  Online            28     11          0       2048       15         14
    5  Empty
    6  Empty
    7  Online            30      8          0       2048       14         13
    8  Online            29     10          0       2048       11         13
    9  Online            31     12          0       2048       16         14
   10  Present           28
   11  Online            38     16          2       2048       16         14
   12  Empty
   13  Empty
   14  Empty
   15  Online            36     11          0       2048       15         14
   16  Empty
   17  Empty
   18  Online            31     10          0       2048       18         13
   19  Empty
  

  For more detailed output, add the detail option. The following example does not specify a slot number, which is optional:

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  user@host> show chassis fpc detail
  
   Slot 4 information:
    State                                 Online
    Temperature                        28
    Total CPU DRAM                   2048 MB
    Total RLDRAM                     1036 MB
    Total DDR DRAM                   11264 MB
    Start time:                           2012-11-26 16:20:07 PST
    Uptime:                               18 hours, 6 minutes, 1 second
    Max Power Consumption             610 Watts
  Slot 7 information:
    State                                 Online
    Temperature                        30
    Total CPU DRAM                   2048 MB
    Total RLDRAM                     1036 MB
    Total DDR DRAM                   6656 MB
    Start time:                           2012-11-26 16:20:12 PST
    Uptime:                               18 hours, 5 minutes, 56 seconds
    Max Power Consumption             520 Watts
  Slot 8 information:
    State                                 Online
    Temperature                        29
    Total CPU DRAM                   2048 MB
    Total RLDRAM                      662 MB
    Total DDR DRAM                   2560 MB
    Start time:                           2012-11-26 16:20:18 PST
    Uptime:                               18 hours, 5 minutes, 50 seconds
    Max Power Consumption             348 Watts
  Slot 9 information:
    State                                 Online
    Temperature                        31
    Total CPU DRAM                   2048 MB
    Total RLDRAM                     1036 MB
    Total DDR DRAM                   11264 MB
    Start time:                           2012-11-26 17:34:36 PST
    Uptime:                               16 hours, 51 minutes, 32 seconds
    Max Power Consumption             610 Watts
  Slot 10 information:
    State                                 Present
    Temperature                        28
    Total CPU DRAM                      0 MB
    Total RLDRAM                        0 MB
    Total DDR DRAM                      0 MB
    Max Power Consumption             440 Watts
  Slot 11 information:
    State                                 Online
    Temperature                        38
    Total CPU DRAM                   2048 MB
    Total RLDRAM                     1036 MB
    Total DDR DRAM                   11264 MB
    Start time:                           2012-11-26 16:20:33 PST
    Uptime:                               18 hours, 5 minutes, 35 seconds
    Max Power Consumption             610 Watts
  Slot 15 information:
    State                                 Online
    Temperature                        36
    Total CPU DRAM                   2048 MB
    Total RLDRAM                     1036 MB
    Total DDR DRAM                   11264 MB
    Start time:                           2012-11-26 16:20:40 PST
    Uptime:                               18 hours, 5 minutes, 28 seconds
    Max Power Consumption             610 Watts
  Slot 18 information:
    State                                 Online
    Temperature                        31
    Total CPU DRAM                   2048 MB
    Total RLDRAM                     1324 MB
    Total DDR DRAM                   5120 MB
    Start time:                           2012-11-26 16:20:46 PST
    Uptime:                               18 hours, 5 minutes, 22 seconds
    Max Power Consumption             440 Watts
  

• Issue the CLI show chassis fpc pic-status command. The MPC slots are numbered from 0 through 9 (bottom), and 10 through 19 (top), left to right:

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  user@host> show chassis fpc pic-status
  
  Slot 4   Online       MPC4E 3D 2CGE+8XGE
    PIC 0  Online       4x10GE SFPP
    PIC 1  Online       1X100GE CFP
    PIC 2  Online       4x10GE SFPP
    PIC 3  Online       1X100GE CFP
  Slot 7   Online       MPCE Type 3 3D
    PIC 0  Online       1X100GE CFP
    PIC 2  Online       1x 10GE XFP
    PIC 3  Online       1x 10GE XFP
  Slot 8   Online       MPC Type 2 3D
    PIC 0  Online       1x 10GE XFP
    PIC 1  Online       1x 10GE XFP
    PIC 2  Online       10x 1GE(LAN) SFP
    PIC 3  Online       10x 1GE(LAN) SFP
  Slot 9   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 10  Present      MPC 3D 16x 10GE
  Slot 11  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 15  Online       MPC4E 3D 2CGE+8XGE
    PIC 0  Online       4x10GE SFPP
    PIC 1  Online       1X100GE CFP
    PIC 2  Online       4x10GE SFPP
    PIC 3  Online       1X100GE CFP
  Slot 18  Online       MPC 3D 16x 10GE
    PIC 0  Online       4x 10GE(LAN) SFP+
    PIC 1  Online       4x 10GE(LAN) SFP+
    PIC 2  Online       4x 10GE(LAN) SFP+
    PIC 3  Online       4x 10GE(LAN) SFP+
  

  For further description of the output from the command, see the Junos OS System Basics and Services Command Reference.

Purpose

For optimum router performance, verify the condition of the Modular Interface Cards (MICs).

Action

On a regular basis:

• Check the LEDs on MIC faceplates. The meaning of the LED states differs for various MICs. For more information, see the MX Series Interface Module Reference. If the MPC that houses the MIC detects a MIC failure, the MPC generates an alarm message to be sent to the Routing Engine.

• Issue the CLI show chassis fpc pic-status command. The MIC slots in an MPC are numbered PIC 0/1 and PIC 2/3, top to bottom:

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  user@host> show chassis fpc pic-status
  
  Slot 4   Online       MPC4E 3D 2CGE+8XGE
    PIC 0  Online       4x10GE SFPP
    PIC 1  Online       1X100GE CFP
    PIC 2  Online       4x10GE SFPP
    PIC 3  Online       1X100GE CFP
  Slot 7   Online       MPCE Type 3 3D
    PIC 0  Online       1X100GE CFP
    PIC 2  Online       1x 10GE XFP
    PIC 3  Online       1x 10GE XFP
  Slot 8   Online       MPC Type 2 3D
    PIC 0  Online       1x 10GE XFP
    PIC 1  Online       1x 10GE XFP
    PIC 2  Online       10x 1GE(LAN) SFP
    PIC 3  Online       10x 1GE(LAN) SFP
  Slot 9   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 10  Present      MPC 3D 16x 10GE
  Slot 11  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 15  Online       MPC4E 3D 2CGE+8XGE
    PIC 0  Online       4x10GE SFPP
    PIC 1  Online       1X100GE CFP
    PIC 2  Online       4x10GE SFPP
    PIC 3  Online       1X100GE CFP
  Slot 18  Online       MPC 3D 16x 10GE
    PIC 0  Online       4x 10GE(LAN) SFP+
    PIC 1  Online       4x 10GE(LAN) SFP+
    PIC 2  Online       4x 10GE(LAN) SFP+
    PIC 3  Online       4x 10GE(LAN) SFP+
  

  For further description of the output from the command, see the Junos OS System Basics and Services Command Reference.

Purpose

For optimum router performance, verify the status of the Gigabit Ethernet ports connected to MPC devices.

Action

On a regular basis:

• Check the LEDs on MPC faceplates. The meaning of the LED states differs for various MICs. For more information, see the MX Series Interface Module Reference.

• Issue the CLI show chassis ethernet-switch command:

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  user@host> show chassis ethernet-switch
  
  Displaying summary for switch 0
  Link is down on GE port 0 connected to device: FPC0
  
  Link is down on GE port 1 connected to device: FPC1
  
  Link is down on GE port 2 connected to device: FPC3
  
  Link is down on GE port 3 connected to device: FPC2
  
  Link is down on GE port 4 connected to device: FPC5
  
  Link is good on GE port 5 connected to device: FPC4
    Speed is 1000Mb
    Duplex is full
    Autonegotiate is Enabled
    Flow Control TX is Disabled
    Flow Control RX is Disabled
  
  Link is down on GE port 6 connected to device: FPC6
  
  Link is good on GE port 7 connected to device: FPC7
    Speed is 1000Mb
    Duplex is full
    Autonegotiate is Enabled
    Flow Control TX is Disabled
    Flow Control RX is Disabled
  
  Link is good on GE port 8 connected to device: FPC8
    Speed is 1000Mb
    Duplex is full
    Autonegotiate is Enabled
    Flow Control TX is Disabled
    Flow Control RX is Disabled
  
  Link is down on GE port 9 connected to device: FPC9
  
  Link is down on GE port 10 connected to device: FPC10
  
  Link is good on GE port 11 connected to device: FPC11
    Speed is 1000Mb
    Duplex is full
    Autonegotiate is Enabled
    Flow Control TX is Disabled
    Flow Control RX is Disabled
  
  Link is down on GE port 12 connected to device: FPC13
  
  Link is down on GE port 13 connected to device: FPC12
  
  Link is down on GE port 14 connected to device: FPC14
  
  Link is down on GE port 15 connected to device: FPC15
  
  Link is down on GE port 16 connected to device: FPC17
  
  Link is good on GE port 17 connected to device: FPC16
    Speed is 1000Mb
    Duplex is full
    Autonegotiate is Enabled
    Flow Control TX is Disabled
    Flow Control RX is Disabled
  
  Link is good on GE port 18 connected to device: FPC18
    Speed is 1000Mb
    Duplex is full
    Autonegotiate is Enabled
    Flow Control TX is Disabled
    Flow Control RX is Disabled
  
  Link is down on GE port 19 connected to device: FPC19
  
  Link is good on GE port 20 connected to device: Other RE-GigE
    Speed is 1000Mb
    Duplex is full
    Autonegotiate is Enabled
    Flow Control TX is Disabled
    Flow Control RX is Disabled
  
  Link is good on GE port 21 connected to device: RE-GigE
    Speed is 1000Mb
    Duplex is full
    Autonegotiate is Enabled
    Flow Control TX is Disabled
    Flow Control RX is Disabled
  
  Link is down on GE port 22 connected to device: Debug-GigE
  
  Link is good on GE port 23 connected to device: SPMB
    Speed is 1000Mb
    Duplex is full
    Autonegotiate is Enabled
    Flow Control TX is Disabled
    Flow Control RX is Disabled
  
  Link is down on XE port 24 connected to device: SFP+ 0
  
  Link is down on XE port 25 connected to device: SFP+ 1
  
  Link is down on XE port 26 connected to device: RE-10GigE
  
  Link is down on XE port 27 connected to device: Other RE-10GigE
  

  For further description of the output from the command, see the Junos OS System Basics and Services Command Reference.

Purpose

For optimum router performance, verify the condition of the cables that connect to the MPCs or MICs.

Action

On a regular basis:

• Use an upper cable manager and a lower cable manager (shown in Figure 1) to support cables and prevent cables from dislodging or developing stress points.

  Figure 1: Upper and Lower Cable Manager Cable Routing
  Note:

  The MX2020 supports both standard and extended upper and lower cable management.

• Place excess cable out of the way in the upper and lower cable managers. Do not allow fastened loops of cable to dangle from the connector or cable manager because this stresses the cable at the fastening point. Putting fasteners on the loops helps to maintain their shape.

• Keep the cable connections clean and free of dust and other particles, which can cause drops in the received power level. Always inspect cables and clean them if necessary before connecting an interface.

• Label both ends of the cables to identify them.

The following guidelines apply specifically to fiber-optic cables:

• When you unplug a fiber-optic cable, always place a rubber safety plug over the transceiver on the faceplate and on the end of the cable.

• Anchor fiber-optic cables to avoid stress on the connectors. Be sure to secure fiber-optic cables so that they do not support their own weight as they hang to the floor. Never let fiber-optic cable hang free from the connector.

• Avoid bending fiber-optic cable beyond its bend radius. An arc smaller than a few inches can damage the cable and cause problems that are difficult to diagnose.

• Frequent plugging and unplugging of fiber-optic cable into and out of optical instruments can cause damage to the instruments that is expensive to repair. Instead, attach a short fiber extension to the optical equipment. Any wear and tear due to frequent plugging and unplugging is then absorbed by the short fiber extension, which is easy and inexpensive to replace.

• Keep fiber-optic cable connections clean. Small microdeposits of oil and dust in the canal of the transceiver or cable connector could cause loss of light, reducing signal power and possibly causing intermittent problems with the optical connection.

  To clean the transceivers, use an appropriate fiber-cleaning device, such as RIFOCS Fiber Optic Adaptor Cleaning Wands (part number 946). Follow the directions for the cleaning kit you use.

  After you clean an optical transceiver, make sure that the connector tip of the fiber-optic cable is clean. Use only an approved alcohol-free fiber-optic cable cleaning kit, such as the Opptex Cletop-S Fiber Cleaner. Follow the directions for the cleaning kit you use.