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Home Documentation Junos OS Junos CLI Reference CLI Reference S

Junos CLI Reference

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show class-of-service fabric statistics

date_range 19-Nov-23
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Syntax

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show class-of-service fabric statistics 
<destination fpc-number> 
<detail>
<source fpc-number> 
<summary>

Description

Display class-of-service (CoS) switch fabric queue statistics.

Note:

On the Switch Control Board (SCB) and the SCBE on MX Series routers, the ratio between high-priority queue and low-priority queue for traffic scheduled to enter the fabric is 85:15. However, on the SCBE2, this ratio is 97:3.

Note:

After an FPC restart, executing this command can return an Error = Operation timed out message for up to a minute even though the FPC is back online. No statistics are lost during this time, however.

Options

none

Same as summary.

destination fpc-number

(Optional) Display details for the specified destination Flexible PIC Concentrator (FPC). The FPC number is a value from 0 through 7 (depending on platform).

detail

(Optional) Display detailed statistics at the PFE level.

source fpc-number

(Optional) Display details for the specified source FPC. The FPC number is a value from 0 through 7 (depending on platform).

summary

(Optional) Display all switch fabric statistics.

detail Options

none

Display details for all FPCs and PFEs.

destination-fpc fpc-number

(Optional) Display details for the specified destination FPC. The FPC number is a value from 0 through 7 (depending on platform).

destination-pfe pfe-number

(Optional) Display details for the specified destination packet forwarding engine (PFE). The PFE number is a value from 0 through 15 (depending on platform).

source-fpc fpc-number

(Optional) Display details for the specified source FPC. The FPC number is a value from 0 through 7 (depending on platform).

source-pfe pfe-number

(Optional) Display details for the specified source PFE. The PFE number is a value from 0 through 15 (depending on platform).

Required Privilege Level

view

Output Fields

Table 1 describes the output fields for the show class-of-service fabric statistics command. Output fields are listed in the approximate order in which they appear.

Table 1: show class-of-service fabric statistics Output Fields

Field Name

Field Description

Destination FPC Index

Index number associated with the destination FPC.

Destination Pfe Index

Index number associated with the destination PFE.

Source PFC Index

Index number associated with the source FPC.

Source Pfe Index

Index number associated with the source PFE.

Total statistics

Fabric queue statistic totals:

  • Packets—Total packet count for high-priority and low-priority queues.

  • Bytes—Total byte count for high-priority and low-priority queues.

  • Pps—Total packets-per-second count for high-priority and low-priority queues.

  • bps—Total bits-per-second count for high-priority and low-priority queues.

Tx statistics

Fabric queue statistics for transmitted traffic:

  • Packets—Transmitted packet count for high-priority and low-priority queues.

  • Bytes—Transmitted byte count for high-priority and low-priority queues.

  • Pps—Transmitted packets-per-second count for high-priority and low-priority queues.

  • bps—Transmitted bits-per-second count for high-priority and low-priority queues.

Drop statistics

Fabric queue statistics for dropped traffic, including packets dropped because of internal error:

  • Packets—Dropped packet count for high-priority and low-priority queues.

  • Bytes—Dropped byte count for high-priority and low-priority queues.

  • Pps—Dropped packets-per-second count for high-priority and low-priority queues.

  • bps—Dropped bits-per-second count for high-priority and low-priority queues.

Qdepth statistics

Fabric queue depth statistics

  • Average—Average queue depth in bytes.

  • Current—Current queue depth in bytes.

  • Peak—Peak queue depth in bytes.

  • Max—Maximum queue depth in bytes.

Sample Output

show class-of-service fabric statistics

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 user@host> show class-of-service fabric statistics  
Destination FPC Index: 0, Source FPC Index: 0
 Total statistics:   High priority           Low priority
    Packets:                     0                      0
    Bytes  :                     0                      0
    Pps    :                     0                      0
    bps    :                     0                      0
 Tx statistics:      High priority           Low priority
    Packets:                     0                      0
    Bytes  :                     0                      0
    Pps    :                     0                      0
    bps    :                     0                      0
 Drop statistics:    High priority           Low priority
    Packets:                     0                      0
    Bytes  :                     0                      0
    Pps    :                     0                      0
    bps    :                     0                      0

Destination FPC Index: 0, Source FPC Index: 1
 Total statistics:   High priority           Low priority
    Packets:                     0                      0
    Bytes  :                     0                      0
    Pps    :                     0                      0
    bps    :                     0                      0
 Tx statistics:      High priority           Low priority
    Packets:                     0                      0
    Bytes  :                     0                      0
    Pps    :                     0                      0
    bps    :                     0                      0
 Drop statistics:    High priority           Low priority
    Packets:                     0                      0
    Bytes  :                     0                      0
...

show class-of-service fabric statistics detail

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 user@host> show class-of-service fabric statistics detail 
Destination FPC Index: 4, Destination Pfe Index: 0, Source FPC Index: 4, Source Pfe Index: 0
 Total statistics:   High priority           Low priority
    Packets:                 28953                      0
    Bytes  :              14823936                      0
    Pps    :                    19                      0
    bps    :                 81024                      0
 Tx statistics:      High priority           Low priority
    Packets:                 28953                      0
    Bytes  :              14823936                      0
    Pps    :                    19                      0
    bps    :                 81024                      0
 Drop statistics:    High priority           Low priority
    Packets:                     0                      0
    Bytes  :                     0                      0
    Pps    :                     0                      0
    bps    :                     0                      0
 Qdepth statistics:    High priority           Low priority
    Average:                     0                      0 b
    Current:                     0                      0 b
    Peak   :                     0                      0 b
    Max    :            1367343104             1367343104 b

Release Information

Command introduced before Junos OS Release 7.4.

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