show class-of-service shared-buffer
Syntax
show class-of-service shared-buffer <egress | ingress>
Description
Display the shared buffer allocation and partitioning configuration.
Due to QFX5200 cross-point architecture, all buffer usage counters are maintained separately. When usage counters are displayed with the command show class-of-service shared-buffer on QFX5200, various pipe counters are displayed separately.
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
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.
Field Name |
Field Description |
|---|---|
|
Ingress shared buffer configuration. |
|
Total buffer space available to the ports in KB. This is the combined dedicated buffer pool and shared buffer pool. |
|
Buffer space allocated to the dedicated buffer pool in KB. |
|
Buffer space allocated to the shared buffer pool in KB. |
|
Buffer space allocated to the lossless traffic buffer pool in KB. |
|
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.) Note:
OCX Series switches do not support PFC. |
|
Buffer space allocated to the lossy (best-effort) traffic buffer pool in KB. |
|
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.) Note:
OCX Series switches do not support PFC. |
|
Index number that identifies the switch. On a QFX3500 switch, this field always has a value of zero (0). |
|
Size of the lossless headroom ingress buffer pool in KB. |
|
Amount in KB of lossless headroom ingress buffer used. |
|
Amount in KB of lossless headroom ingress buffer free (unused). |
|
Egress shared buffer configuration. |
|
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
Release Information
Command introduced in Junos OS Release 12.3.