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Enabling and Disabling Specific Routing Matrix with a TX Matrix Router Hardware Components

You can temporarily disable certain hardware components (such as FPCs, PICs, and SIBs) that belong to the TX Matrix router and T640 routers in the routing matrix. To do so, issue the appropriate request chassis command and include the lcc or scc option as needed.

Note: If you issue a chassis-related command that references FPCs, we recommend that you use the FPC hardware slot number (0 through 7) of the specific T640 router and specify its corresponding LCC number.


user@router> request chassis ?
Possible completions:
  cb                   Change Control Board status
  fpc                  Change Flexible PIC Concentrator status
  fpm                  Change craft interface status
  lcc                  Change LCC status
  pic                  Change Physical Interface Card status
  routing-engine       Change Routing Engine status
  scg                  Change SONET Clock Generator status
  sib                  Change Switch Interface Board status
  spmb                 Change Switch Processor Mezzanine Board status

user@router> request chassis fpc ?
Possible completions:
  lcc                  Slot number of LCC that houses FPC (0..3)
  offline              Take FPC offline
  online               Bring FPC online
  restart              Restart FPC
  slot                 FPC slot number (0..31)

user@router> request chassis pic ?
Possible completions:
  fpc-slot             Slot number of FPC that houses PIC (0..31)
  lcc                  Slot number of LCC that houses FPC (0..3)
  offline              Take PIC offline
  online               Bring PIC online
  pic-slot             PIC slot number (0..3)

user@router> request chassis sib ?
Possible completions:
  lcc                  Change Switch Interface Board status (0..3)
  offline              Take SIB offline
  online               Bring SIB online
  scc                  Change Switch Interface Board status
  slot                 SIB slot number (0..4)
  start-receiver       Start SIB optical receiver (0..3)
  stop-receiver        Stop SIB optical receiver (0..3)

The routing matrix extends the concept of taking specific hardware components offline or online to include an entire T640 router in a routing matrix. To enable or disable a T640 router in a routing matrix, issue the request chassis lcc slot lcc-number (offline | online) command.


user@router> request chassis lcc ?
Possible completions:
  offline              Take LCC offline
  online               Bring LCC online
  slot                 LCC Slot (0..3)

Although you can enter the routing matrix-based slot number when you issue the request chassis fpc command, output from show chassis commands always references the FPC hardware slot number (0 through 7) of the specific T640 router and its corresponding LCC number. As a result, we recommend that you include the FPC hardware slot number when you issue request chassis or show chassis commands, as shown in the following example:

First, issue the request chassis fpc command with the routing matrix-based FPC slot number of 19:


user@router> request chassis fpc offline slot 19
lcc2-re0:
--------------------------------------------------------------------------
Offline initiated, use "show chassis fpc" to verify

However, when you issue the show chassis fpc command to check the result, the output displays the change using node-centric terminology: FPC slot number 3 on T640 router LCC2 (the equivalent of routing matrix slot 19).


user@router> show chassis fpc
lcc0-re0:
--------------------------------------------------------------------------
                     Temp  CPU Utilization (%)   Memory    Utilization (%)
Slot State            (C)  Total  Interrupt      DRAM (MB) Heap     Buffer
  0  Empty           
  1  Online            31      2          0       256         7         44
  2  Online            28      1          0       256         7         44
  3  Online            31      2          0       256        14         44
  4  Empty           
  5  Empty           
  6  Empty           
  7  Empty           

lcc2-re0:
--------------------------------------------------------------------------
                     Temp  CPU Utilization (%)   Memory    Utilization (%)
Slot State            (C)  Total  Interrupt      DRAM (MB) Heap     Buffer
  0  Online            31      2          0       256        14         44
  1  Online            30      2          0       256         7         44
  2  Empty           
  3  Offline         --- Offlined by cli command ---
  4  Empty           
  5  Empty           
  6  Empty           
  7  Empty           

To bring the same FPC back online, use the slot number and LCC number from the previous command output:


user@router> request chassis fpc online lcc 2 slot 3
lcc2-re0:
--------------------------------------------------------------------------
Online initiated, use "show chassis fpc" to verify

Once you bring the FPC back online, reissue the show chassis fpc command to see that the FPC slot and LCC number you used in the last command now matches the command output:


user@router> show chassis fpc
lcc0-re0:
--------------------------------------------------------------------------
                     Temp  CPU Utilization (%)   Memory    Utilization (%)
Slot State            (C)  Total  Interrupt      DRAM (MB) Heap     Buffer
  0  Empty           
  1  Online            31      1          0       256         7         44
  2  Online            28      1          0       256         7         44
  3  Online            31      3          0       256        14         44
  4  Empty           
  5  Empty           
  6  Empty           
  7  Empty           

lcc2-re0:
--------------------------------------------------------------------------
                     Temp  CPU Utilization (%)   Memory    Utilization (%)
Slot State            (C)  Total  Interrupt      DRAM (MB) Heap     Buffer
  0  Online            31      3          0       256        14         44
  1  Online            30      1          0       256         7         44
  2  Empty           
  3  Present            0      0          0         0         0          0
  4  Empty           
  5  Empty           
  6  Empty           
  7  Empty

For more information about converting FPC hardware slot numbers on a T640 router to routing matrix FPC slot numbers, see Adjusting the Configuration to Accommodate Increased FPC Numbers in a Routing Matrix with a TX Matrix Router.


Published: 2010-04-15

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