UCAST

11

0

3

2

4

0

3

MCAST

0

0

0

 

0

3

If only two instances are available at the time the above show command is issued, only two instances is displayed in the summary output.

---------------------------------------------------------------

------------------------------------------------

Q# TYPE

Q#

TOTAL BUFFERED

CELLS

 

Instance 1 Instance

2

 

10S

20S

 

---------------------------------------------------------------

------------------------------------------------

UCAST

2

5

4

1

3

2

0

UCAST

UCAST

11

0

3

MCAST

4

0

0

Dell#show hardware stack-unit 0 buffer-stats-snapshot unit 0 resource port 5 prio-group all history summary

Stack-unit 0 unit 0 port 5 (interface te 0/4)

---------------------------------------------------------------

------------------------------------------------

3

PG#

Instance

1

Instance 2

Instance

Instance 4

Instance 5

Shared Hdrm

Shared Hdrm

 

Shared

Hdrm

Shared Hdrm

Shared Hdrm [in CELLS]

---------------------------------------------------------------

------------------------------------------------

6

9

2

0

0

1

0

4

 

1

7

 

1

 

 

 

 

 

7

0

0

0

0

1

0

0

 

0

0

0

In the following example, the Headroom Cells field indicates the amount of shared buffer area that is allocated to store packets that are received after the pause frame is received or a priority-based flow control pause frame is enabled. When an inbound interface halts the sending of traffic, it must have the buffer space to save all of the packets currently in the buffer, and also all of the packets that were received before the device stops the sending of packets. Headroom space is used for high-priority traffic that needs to be queued and preserved above the input queue limit, such as keepalives and hello messages.

You can use the following sample command output to obtain a consolidated, whole-scale set of statistical counters of buffer resource utilization in the system and identify the ports that you want. All resources will be cleared after their values are displayed.

Dell#show hardware stack-unit 0 buffer-stats-snapshot unit 0

Data Center Bridging (DCB)

513

Page 513
Image 513
Dell 9.7(0.0) manual Ucast Mcast, Instance 1 Instance 10S 20S, Pg#, Instance Shared Hdrm Shared Hdrm in Cells