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Supported Platforms

EX4600

show class-of-service shared-buffer

Syntax

show class-of-service shared-buffer<egress | ingress>

Release Information

Command introduced in Junos OS Release 12.3 for the QFX Series.

Description

Display the shared buffer allocation and partitioning configuration.

Options

none

—

Display ingress and egress shared buffer settings.

egress

—

(Optional) Display the egress shared buffer settings.

ingress

—

(Optional) Display the ingress shared buffer settings.

Required Privilege Level

view

Related Documentation

List of Sample Output

show class-of-service shared-buffer

Output Fields

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

Table 1: show class-of-service shared-buffer Output Fields

Field Name	Field Description
Ingress	Ingress shared buffer configuration.
Total Buffer	Total buffer space available to the ports in KB. This is the combined dedicated buffer pool and shared buffer pool.
Dedicated Buffer	Buffer space allocated to the dedicated buffer pool in KB.
Shared Buffer	Buffer space allocated to the shared buffer pool in KB.
Lossless	Buffer space allocated to the lossless traffic buffer pool in KB.
Lossless Headroom	Buffer space allocated to the lossless headroom traffic buffer pool to support priority-based flow control (PFC) and Ethernet PAUSE in KB. (Ingress ports only.)
Lossy	Buffer space allocated to the lossy (best-effort) traffic buffer pool in KB.
Lossless Headroom Utilization	Utilization of the ingress lossless headroom buffer pool. (These fields can help you to determine how much headroom buffer space you need to reserve to support PFC and Ethernet PAUSE for lossless flows.)
Node Device	Index number that identifies the switch. On a QFX3500 switch, this field always has a value of zero (0).
Total	Size of the lossless headroom ingress buffer pool in KB.
Used	Amount in KB of lossless headroom ingress buffer used.
Free	Amount in KB of lossless headroom ingress buffer free (unused).
Egress	Egress shared buffer configuration.
Multicast	Buffer space allocated to the multicast traffic buffer pool in KB. (Egress ports only.)

Sample Output

show class-of-service shared-buffer

user@switch> show class-of-service shared-buffer

Ingress:
  Total Buffer     :  9360.00 KB   
  Dedicated Buffer :  2158.00 KB  
  Shared Buffer    :  7202.00 KB  
    Lossless          :  648.18 KB   
    Lossless Headroom :  3240.90 KB  
    Lossy             :  3312.92 KB  

  Lossless Headroom Utilization:
  Node Device         Total          Used                  Free
  0                   3240.90 KB     0.00 KB               3240.90 KB  

Egress:
  Total Buffer     :  9360.00 KB   
  Dedicated Buffer :  2704.00 KB  
  Shared Buffer    :  6656.00 KB  
    Lossless          :  3328.00 KB  
    Multicast         :  1264.64 KB  
    Lossy             :  2063.36 KB

Published: 2014-07-23

Supported Platforms

EX4600