[Report an Error]

Monitoring and Managing FEB Redundancy

Forwarding Engine Boards (FEBs) provide route lookup and forwarding functions from the Flexible PIC Concentrators (FPCs) and compact Flexible PIC Concentrators (cFPCs). You can configure FEB redundancy groups to provide high-availability for FEBs.

To view the status of FEBs, FEB redundancy groups, or connectivity between FPCs and FEBs, select Monitor>Chassis>FEB Redundancy in the J-Web interface. The FEB Information table displays the status of each FEB, as described in Table 70. Alternatively, you can view the same information by entering the show chassis feb command.

Table 70: FEB Information

Field

Description

FEB Slot

FEB slots are numbered 0 through 5.

State

State of each FEB.

Operation

To take a FEB offline or online or restart it, click Offline, Online, or Restart.

Alternatively, enter the CLI command request chassis feb (online | offline | restart) slot slot-number.

If you bring a FEB offline or remove it, interfaces on FPCs connected to the FEB are deleted. When you bring the FEB back online, the interfaces are restored.

Temperature

Temperature of the air passing by the FEB.

Total CPU Utilization

Total percentage of CPU being used by the FEB processor.

Interupt CPU Utilization

Of the total CPU being used by the FEB processor, the percentage being used for interrupts.

Memory DRAM

Total DRAM, in megabytes, available to the FEB processor.

Heap Memory Utilization

Percentage of heap space (dynamic memory) being used by the FEB processor. If this number exceeds 80 percent, you might experience a software problem (memory leak).

Buffer Memory Utilization

Percentage of buffer space being used by the FPC processor for buffering internal messages.

The FEB Redundancy Information table displays information about FEB redundancy groups, as described in Table 71. Alternatively, you can view the same information by entering the show chassis redundancy feb command.

Table 71: FEB Redundancy Information

Field

Description

Group

Name of the configured redundancy group.

FEB

Slot number of each FEB included in redundancy groups.

State

State of each FEB.

Priority

Status of FEB in the redundancy group: Backup, Primary, or null (group member that is not designated either backup nor primary).

Operation

To manually switch to or from a FEB backup, click Switch to Backup or Revert from Backup.

Alternatively, enter the CLI command request chassis redundancy feb slot slot-number switch-to-backup | revert-from-backup.

Note: Manual switchover from a primary to a backup FEB results in less than 1 second of traffic loss, whereas automatic failover from the primary to a backup FEB results in a traffic loss period of up to 10 times as long.

Connected FPCs

FPCs connected to this FEB.

Redundancy State

Status of the FEB:

  • Active—FEB is currently active.
  • Ready—Backup FEB is ready for a switchover
  • Not Ready—Backup FEB is not ready for a switchover.

AutoFailover

Automatic failover status of redundancy group: Enabled or Disabled.

Errors

Lists any errors.

The FPC/FEB Connectivity Information table displays the FEBs, if any, that are connected to each FPC and the status of each link. These fields are described in Table 72. Alternatively, you can view the same information using the show chassis fpc-feb-connectivity command.

Table 72: FPC/FEB Connectivity

Field

Description

FPC

Slot number of the FPC

FPC State

State of the FPC: Announce offline, Announce online, Empty, Offline, Online, Present, or Ready.

Connected FEB

Slot number of the FEB connected to the FPC or None if the FPC is not connected to a FEB.

Note: To configure connectivity between FPCs and FEBs, go to Configuration>Quick Configuration>FEB Redundancy>FPC/FEB Connectivity.

FEB State

State of the FEB: Announce offline, Announce online, Empty, Offline, Online, Present, or Ready.

Link Status

Status of the link connecting the redundant FEB and FPC:

  • Error
  • Misconfiguration—Configuration between the FEB and FPC is incorrect.
  • OK

For more information about the J-Web Monitor task, see Monitor Tasks.


[Report an Error]