Monitoring current port group utilization

amirs · ‎06-01-2011

Hi,

I'm searching for a way to know online (or historical) if I have an issue because port oversubscription.

Can I see the current (or historical) port group entiere bandwith?

Or maybe I should manual calculate each of the shared port utilization?

Thanks,

Amir

dynamoxxx · ‎06-01-2011

in device manager right click on the module and select "Check Oversubscription", then select Monitor and pick appropriate port group you want to monitor.

@dynamoxxx

amirs · ‎06-02-2011

Thanks,

But can I get this information from a command line?

I want to capture current status when I'm suspecting a problem using a script, or get historical data of this

Thanks

Vu Phan · ‎06-02-2011

For CLI you can use the following:

Switch# show port-resources module X

ex:


switch# show port-resources module 8

Module 8

  Available dedicated buffers are 5400

 Port-Group 1
  Total bandwidth is 12.8 Gbps
  Total shared bandwidth is 12.8 Gbps
  Allocated dedicated bandwidth is 0.0 Gbps
  --------------------------------------------------------------------
  Interfaces in the Port-Group       B2B Credit  Bandwidth  Rate Mode
                                        Buffers     (Gbps)
  --------------------------------------------------------------------
  fc8/1                                      16        4.0  shared
  fc8/2                                      16        4.0  shared
  fc8/3                                      16        4.0  shared
  fc8/4                                      16        4.0  shared
  fc8/5                                      16        4.0  shared
  fc8/6                                      16        4.0  shared

 Port-Group 2
  Total bandwidth is 12.8 Gbps
  Total shared bandwidth is 12.8 Gbps
  Allocated dedicated bandwidth is 0.0 Gbps
  --------------------------------------------------------------------
  Interfaces in the Port-Group       B2B Credit  Bandwidth  Rate Mode
                                        Buffers     (Gbps)
  --------------------------------------------------------------------
  fc8/7                                      16        4.0  shared
  fc8/8                                      16        4.0  shared
  fc8/9                                      16        4.0  shared
  fc8/10                                     16        4.0  shared
  fc8/11                                     16        4.0  shared
  fc8/12                                     16        4.0  shared

 Port-Group 3
  Total bandwidth is 12.8 Gbps
  Total shared bandwidth is 12.8 Gbps
  Allocated dedicated bandwidth is 0.0 Gbps
  --------------------------------------------------------------------
  Interfaces in the Port-Group       B2B Credit  Bandwidth  Rate Mode
                                        Buffers     (Gbps)
  --------------------------------------------------------------------
  fc8/13                                     16        4.0  shared
  fc8/14                                     16        4.0  shared
  fc8/15                                     16        4.0  shared
  fc8/16                                     16        4.0  shared
  fc8/17                                     16        4.0  shared
  fc8/18                                     16        4.0  shared

 Port-Group 4
  Total bandwidth is 12.8 Gbps
  Total shared bandwidth is 12.8 Gbps
  Allocated dedicated bandwidth is 0.0 Gbps
  --------------------------------------------------------------------
  Interfaces in the Port-Group       B2B Credit  Bandwidth  Rate Mode
                                        Buffers     (Gbps)
  --------------------------------------------------------------------
  fc8/19                                     16        4.0  shared
  fc8/20                                     16        4.0  shared
  fc8/21                                     16        4.0  shared
  fc8/22                                     16        4.0  shared
  fc8/23                                     16        4.0  shared
  fc8/24                                     16        4.0  shared

You can also use the command “switch# show interface counters brief”
to determine the traffic at a 5 minute interval and determine the available
bandwidth  between the oversubscribed ports.

switch# sho interface counter br ------------------------------------------------------------------------------- Interface Input (rate is 5 min avg) Output (rate is 5 min avg) ----------------------------- ----------------------------- Rate Total Rate Total MB/s Frames MB/s Frames ------------------------------------------------------------------------------- fc1/1 0 536 0 564 fc1/2 0 441084 0 479201 fc1/3 0 114358 0 116571 fc1/4 0 545 0 16 fc1/5 0 15 0 15 fc1/6 0 10205 0 10205 fc1/7 0 35196 0 35707 fc1/8 0 137 0 140 fc1/9 0 541481 0 972228 fc1/10 0 222666 0 19803 fc1/11 0 218971 0 17802 fc1/12 0 45610 0 45727 fc1/13 0 74 0 48 fc1/14 0 135 0 43 fc1/15 0 1 0 1 fc1/16 0 1 0 1 fc1/17 0 1 0 1 fc1/18 0 1 0 1 fc2/1 0 1 0 1

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

Interface Input (rate is 5 min avg) Output (rate is 5 min avg)

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

Rate Total Rate Total

MB/s Frames MB/s Frames

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

GigabitEthernet1/1 0 2 0 1

GigabitEthernet1/1.101 0 2 0 1

GigabitEthernet1/2 0 0 0 0

GigabitEthernet1/3 0 0 0 0

GigabitEthernet1/4 0 0 0 0

GigabitEthernet9/1 0 0 0 0

GigabitEthernet9/2 0 0 0 0

GigabitEthernet9/3 0 0 0 0

GigabitEthernet9/4 0 0 0 0

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

Interface Input (rate is 5 min avg) Output (rate is 5 min avg)

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

Rate Total Rate Total

MB/s Frames MB/s Frames

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

iscsi1/1 0 0 0 0

iscsi1/2 0 0 0 0

iscsi1/3 0 0 0 0

iscsi1/4 0 0 0 0

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

Interface Input Output

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

pkt bytes pkt bytes

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

vsan1 0 0 6 384

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

Interface Input (rate is 5 min avg) Output (rate is 5 min avg)

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

Rate Total Rate Total

MB/s Frames MB/s Frames

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

port-channel 1 0 35497 0 36011

port-channel 2 0 987423 0 1014264

port-channel 128 0 46025 0 46024

switch#

sandasani · ‎06-13-2011

Is there a command to see the actual usage of a port group ?