show dcb cn congestion-point

Examples

This example displays congestion point information for all ports:

System(rw)->show dcb cn congestion-point tg.1.1-3
                        Queue               Minimum     Minimum
            CP          Size                Sample      Header
Port Name   Index  Pri  Set Point   Weight  Base        Octets
----------  -----  ---  ----------  ------  ----------  -------
tg.1.1        5     4   26000       1       150000      0
tg.1.2        5     4   26000       1       150000      0
tg.1.3        5     4   26000       1       150000      0
...

This example displays congestion point information for congestion point index 7 on port tg.1.1:

System(rw)->show dcb cn congestion-point tg.1.1 7
Congestion Point
---------------------------------------------------
Port                : tg.1.1
CP Index            : 7
Lowest CNPV         : 6
MAC Address         : 00-11-88-FE-79-6A
CP Identifier       : 00-11-88-FE-79-00-01-00
Q Size Set Point    : 26000
Feedback Weight     : 1
Min Sample Base     : 150000
Min Header Bytes    : 0
Discarded Frames    : 0
Transmitted Frames  : 0
Transmitted CCMs    : 0
Queue Profile Type  : 1
Queue Profile Index : 0

This example displays congestion point stats for all congestion points:

System(rw)->show dcb cn congestion-point stats
           CP   Tx                    Discarded             Tx
Port       Idx  Frames Count          Frames Count          CNMs Count
---------  ---  --------------------  --------------------  -------------------
tg.1.1      7   0                     0                     0
tg.1.2      7   0                     0                     0
tg.1.3      7   0                     0                     0
...

show dcb cn congestion-point Output Details provides an explanation of the command output.

show dcb cn congestion-point Output Details

Output...	What it displays...
Port or Port Name	A port configured for congestion notification.
CP Index	The congestion point table index value for a congestion point on the bridge or end station device.
Pri or Lowest CNPV	The lowest numerical congestion notification priority value this congestion point table entry serves.
MAC Address	The MAC address of the system transmitting the congestion notification message (CNM) PDU and used as the CNM PDU source address.
CP Identifier	The Congestion Point Identifier (CPID) that uniquely identifies this congestion point in a virtual bridge network, carried in CNM PDUs sent by this congestion point.
Q Set-point or Queue Size Set Point	The set point for the queue managed by this congestion point is a target value for the number of octets in the congestion point queue. CNM PDUs are transmitted to the sources of frames queued in this congestion point's queue in order to keep the total number of octets stored in the queue at this set point.
Weight (W) or Feedback Weight	W is the weight to be given to the change in queue length in the calculation of quantitized feedback as defined in the IEEE 802.1Q-2011 standard. Weight is an integer value from which W is derived (equal to two to the power of the weight value specified here). Thus, if weight equals a -1, W = 1/2. This value is platform dependent and can be between the minimum weight and maximum weight as displayed by show dcb cn q-profile. The default value is 2.
Min or Minimum Sample Base	The minimum number of octets to enqueue in the congestion point queue between transmissions of CNM PDUs. Default value is 150000.
Minimum Header Octets or Min Header Bytes	The minimum number of octets to be returned in the encapsulated MSDU field of each CNM PDU generated.
Tx-Frames	The number of data frames passed on to the queue controlled by a congestion point that were not discarded.
Discarded Frames	The number of frames discarded because of a full output queue.
Transmitted Frames	The number of transmitted frames by this congestion point.
Transmitted CNMs	The number of CNM PDUs enqueued on this congestion point‘s transmit queue.
Queue Profile Type	The transmit queue type.
Queue Profile Index	The transmit queue index.