Check How Long Router Components Have Been Up

Purpose

When a problem occurs and you check the system to see how long it has been up, you may find that the show system uptime command displays the current time and information about how long the router, router software, and routing protocols have been running, but does not tell you if a component failed. Determining whether a component failed when a problem occurred with the router is an important step in the diagnosis of a problem.

Action

To check how long router components have been up, issue the show chassis command for the components on your router:

user@host> show chassis fpc detailuser@host> show chassis routing-engineuser@host> show chassis febuser@host> show chassis scbuser@host> show chassis sfmuser@host> show chassis ssb

Sample Output

The following sample output is for an M20 router:

user@host> show chassis fpc detail
Slot 0 information:
  State                               Empty     
Slot 1 information:
  State                               Online    
  Logical slot                      0
  Temperature                      32 degrees C / 89 degrees F
  Total CPU DRAM                    8 MB
  Total SRAM                        1 MB
  Total SDRAM                     128 MB
  Total notification SDRAM         24 MB
  I/O Manager ASIC information        Version 2.0, Foundry IBM, Part number 0
  Start time:                         2003-09-23 17:20:42 UTC
  Uptime:                              1 day, 4 hours, 45 minutes, 14 seconds
Slot 2 information:
  State                               Empty     
Slot 3 information:
  State                               Online    
  Logical slot                      1
  Temperature                      32 degrees C / 89 degrees F
  Total CPU DRAM                    8 MB
  Total SRAM                        1 MB
  Total SDRAM                     128 MB
  Total notification SDRAM         24 MB
  I/O Manager ASIC information        Version 1.1, Foundry IBM, Part number 0
  Start time:                         2003-09-12 01:28:16 UTC
  Uptime:                              12 days, 20 hours, 37 minutes, 40 seconds

Sample Output

 user@host> show chassis routing-engine 
Routing Engine status:
  Slot 0:
    Current state                  Master
    Election priority              Master (default)
    Temperature                 30 degrees C / 86 degrees F
    DRAM                       768 MB
    Memory utilization          17 percent
    CPU utilization:
      User                       0 percent
      Background                 0 percent
      Kernel                     1 percent
      Interrupt                  0 percent
      Idle                      99 percent
    Model                          RE-2.0
    Serial ID                      58000007348d9a01
    Start time                     2003-09-19 07:05:20 PDT
    Uptime                         6 hours, 42 minutes, 26 seconds
    Load averages:                 1 minute   5 minute  15 minute
                                       0.00       0.00       0.00
Routing Engine status:
  Slot 1:
    Current state                  Backup
    Election priority              Backup (default)
    Temperature                 30 degrees C / 86 degrees F
    DRAM                       768 MB
    Memory utilization           0 percent
    CPU utilization:
      User                       0 percent
      Background                 0 percent
      Kernel                     0 percent
      Interrupt                  0 percent
      Idle                     100 percent
    Model                          RE-2.0
    Serial ID                      d800000734745701
    Start time                     2003-06-17 16:37:33 PDT
    Uptime                         93 days, 20 hours, 58 minutes, 14 seconds

Sample Output

user@host> show chassis ssb    
SSB status:
Slot 0 information:
  State                          Master    
  Temperature                 33 degrees C / 91 degrees F
  CPU utilization              2 percent
  Interrupt utilization        0 percent
  Heap utilization            17 percent
  Buffer utilization          43 percent
  Total CPU DRAM              64 MB
  Internet Processor II          Version 1, Foundry IBM, Part number 9
  Start time:                    2003-09-19 07:06:52 PDT
  Uptime:                        6 hours, 43 minutes, 52 seconds
Slot 1 information:
  State                          Backup

Meaning

The sample output shows the time when the component started running and how long the component has been running. A short uptime can indicate a problem with the component.