Link utilization Calculation

[t.kohli]

Hi All,

Can someone help me calculating the Link utilization of the Cisco interfaces . We have two Data centers joinded by  Dark Fibre services .

The connections are going from Cisco SAN ports in the form for Port channels(3 Interfaces) to the other Data Center.

Each port channel will have a total bandwidth of 12Gb/s

Synchronous replication is running between the Data center (One way only Prod to DR).

Now what i want to know is that, Is there any way i can check the utilization of that link?

Port Channel- 4Gb/s * 3 = 2 Gb/s

DC 1 Fabric A

5 minutes input rate 64447640 bits/sec,8055955 bytes/sec, 14123 frames/sec
5 minutes output rate 476055320 bits/sec,59506915 bytes/sec, 38300 frames/sec
113452131597 frames input,49182852122320 bytes
0 discards,0 errors
0 invalid CRC/FCS,0 unknown class
0 too long,0 too short
327682147995 frames output,502640386263892 bytes
0 discards,0 errors
0 input OLS,0 LRR,0 NOS,0 loop inits
0 output OLS,0 LRR, 0 NOS, 0 loop inits
250 receive B2B credit remaining
201 transmit B2B credit remaining
186 low priority transmit B2B credit remaining

Interface last changed at Sat Feb 26 16:53:05 2011

DC2 Fabric A

5 minutes input rate 446915368 bits/sec,55864421 bytes/sec, 36328 frames/sec
5 minutes output rate 62841432 bits/sec,7855179 bytes/sec, 13772 frames/sec
596466773473 frames input,906485421200256 bytes
0 discards,0 errors
0 invalid CRC/FCS,0 unknown class
0 too long,0 too short
209348404222 frames output,86776406260872 bytes
0 discards,0 errors
0 input OLS,0 LRR,0 NOS,0 loop inits
0 output OLS,0 LRR, 0 NOS, 0 loop inits
250 receive B2B credit remaining
181 transmit B2B credit remaining
166 low priority transmit B2B credit remaining
Interface last changed at Sat Feb 26 16:16:03 2011

[Florin Barhala]

Hello,

Either SNMP polling or Netflow should help. Obviously a collector like Cacti or Solarwinds product family will also be required.

[t.kohli]

Thanks for the Response Florin.

Can you share some docs. or something which can help me accomplish this.

Thanks

[Florin Barhala]

I can try to do that; can you share show version output.

[t.kohli]

Hi Florin, Please see the output below.

SAN10# show version
Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Documents: http://www.cisco.com/en/US/products/ps9372/tsd_products_support_serie
s_home.html
Copyright (c) 2002-2015, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained herein are owned by
other third parties and are used and distributed under license.
Some parts of this software are covered under the GNU Public
License. A copy of the license is available at
http://www.gnu.org/licenses/gpl.html.

Software
  BIOS:      version 1.0.10
  loader:    version N/A
  kickstart: version 6.2(13)
  system:    version 6.2(13)
  BIOS compile time:       01/08/09
  kickstart image file is: bootflash:///m9500-sf2ek9-kickstart-mz.6.2.13.bin
  kickstart compile time:  8/31/2015 13:00:00 [06/30/2015 13:07:40]
  system image file is:    bootflash:///m9500-sf2ek9-mz.6.2.13.bin
  system compile time:     8/31/2015 13:00:00 [06/30/2015 14:42:15]

Hardware
  cisco MDS 9513 (13 Slot) Chassis ("Supervisor/Fabric-2")
  Motorola, 7447A, altivec  with 1032996 kB of memory.
  Processor Board ID

  Device name: SAN10
  bootflash:    1000440 kB
  slot0:              0 kB (expansion flash)

Kernel uptime is 226 day(s), 0 hour(s), 35 minute(s), 17 second(s)

Last reset
  Reason: Unknown
  System version: 6.2(11b)
  Service:

plugin
  Core Plugin
SAN10#

Thanks

Tarun Kohli

[Florin Barhala]

Let's catch some fish:

 - Google for cisco MDS 9513 6.2 configuration guide will get to a result output like this: 

Cisco MDS 9000 NX-OS Software Release 7.3

• Cisco MDS NX-OS Configuration Limits, Release 7.3   
• Cisco MDS 9000 Family Data Mobility Manager Configuration Guide   
• Cisco MDS 9000 Family NX-OS Fabric Configuration Guide   
• Cisco MDS 9000 Family NX-OS Security Configuration Guide   
• Cisco MDS 9000 Family I/O Accelerator Configuration Guide   
• Cisco MDS 9000 Family NX-OS IP Services Configuration Guide   
• Cisco MDS 9000 Family NX-OS Intelligent Storage Services Configuration Guide   
• Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide   
• Cisco MDS 9000 Family NX-OS System Management Configuration Guide   UPDATED

From here you should know that SNMP tasks are to be found on the System Management Configuration Guide; click on it then you will get to the final URL: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/7_3/configuration/sysmgmt/sysmgmt/snmp.html 

[t.kohli]

This one really helped.

Thank you very much Florin.

Regards,

Tarun kohli