Cisco WLC – IOS Based WLC AP Count through SNMP (5760, 3850, 3650)

I had a hard time to find the correct OID and ended with doing a snmpwalk and try to find the right OID with a grep…
But i think i made it ๐Ÿ™‚

Crosschecked on 2 5760 Clusters and i got the correct count on both, also tried to reboot some APs and the count seems correct to me.
Note: I use 3.6.1 so maybe you get a different result with another software version.

Interesting is that i found two other OIDs that report the same value.

Cisco ACS – Patch Install error (% Manifest file not found in the bundle)

I’m sure that it’s not the first time i felt for this …
Tried to install a ACS Patch this morning and got an error:
% Manifest file not found in the bundle

First i used the wrong command:
patch install 5-4-0-46-5.tar.gpg FTP

ACS01/admin# patch install 5-4-0-46-5.tar.gpg FTP
Save the current ADE-OS running configuration? (yes/no) [yes] ?
Generating configuration...
Saved the ADE-OS running configuration to startup successfully
Initiating Application Patch installation...
% Manifest file not found in the bundle

Easy solution, use the right command! ๐Ÿ™‚
acs patch install 5-4-0-46-5.tar.gpg repository FTP

ACS01/admin# acs patch install 5-4-0-46-5.tar.gpg repository FTP
Installing ACS patch requires a restart of ACS services. Continue?  (yes/no) yes
Calculating disk size for /opt/CSCOacs/patches
Total size of patch files are 1079 M.
Max Size defined for patch files are 1000 M.
WARNING: Patch of size 1079 M exceeds the allowed quota of 1000 M.
This will not prohibit patch installation process as long as there is enough disk space.
Please note that this indicates you should consider moving ACS to a higher disk space machine
Stopping ACS.
Stopping Management and View...............................................................
Stopping Runtime.........................
Stopping Database.....
Stopping Ntpd....
Stopping log forwarding .....
Installing patch version ''
Installing ADE-OS 1.2 patch.  Please wait...
Decompressing patch files ...
About to install files
Removing old war
Removing old war
Removing old war
Removing old war
Removing old war
Removing old war
Removing old war
Removing old war
Removing old war
Patch '5-4-0-46-5' version '' successfully installed
Starting ACS ....

To verify that ACS processes are running, use the
'show application status acs' command.

Cisco ACI – Upgrade your ACI Fabric (1.0(2j) to 1.0(3f))

I did a upgrade of our ACI Lab Fabric last week and documented all the steps. The upgrade is really straightforward, but hopefully this guide still helps you ๐Ÿ™‚

First you have to catch the desired Software, get them directly from cisco. You need APIC Release image for 1.0(3f) release (aci-apic-dk9.1.0.3f.iso) and the Cisco Nexus 9000 Series ACI Mode Switch Software Release 11.0(3f) (aci-n9000-dk9.11.0.3f.bin). Get them here:
Cisco ACI Version 1.0(3f)

I always check the MD5 sum, just to be sure that everything went right with my download.

$ md5 aci-apic-dk9.1.0.3f.iso
MD5 (aci-apic-dk9.1.0.3f.iso) = 6e747378ec4225ead0f27cb23aa54f02
Cisco ACI 1.0(3f) MD5 Hash

Cisco ACI 1.0(3f) MD5 Hash

The MD5 hash looks right. Check the same for the Nexus 9000 Image!


Cisco ACI – Connect to the leaf/spine switches

With the introduction of the NX-OS Cli, cisco changed the way how you connect to leaf/spine switches.
Find my updated post here.

There are several scenarios where you want to connect to your leaf and spine switches of the ACI fabric.
In this example we want to checkout the BGP Status.

First you connect to your APIC Controller through SSH:

$ ssh admin@
Application Policy Infrastructure Controller
admin@'s password:


Benefits of becoming a CCIE

Beside of your number and that you’re recognised as CCIE you also get some small perks from Cisco:

CCIE Certification Kit
You will get a CCIE Certification Kit, after i got mine i will blog about it for sure!
According to cisco it includes:

  • Congratulatory letter from John Chambers
  • Certificate of achievement
  • Personalized CCIE plaque
  • CCIE badge pull
  • CCIE sticker set
  • Certification resource document

I will post the whole package and its content after i received my Certification Kit


Use ? “literal” in IOS

As we all know, the Question mark in IOS is used as interactive help, but what about a ? in a password?
This could for example be a task in your CCIE Lab or at least in on of the many preparation labs.

To use the ? literal just enter crtl+v and then ?

Rack1SW3(config)#username cisco password SECR?
LINE    <cr>

ctrl+v ?

Rack1SW3(config)#username cisco password SECR?

Easy stuff but good to know!
Of course the ? can also be used in ACL Names, Route-maps, etc…

Cisco IOS shortcuts

Nice overview of Cisco IOSย shortcuts, will try to add more!

Ctrl + A - Beginning Line
Ctrl + B - Backward Character
Ctrl + C - Clear line
Ctrl + D - Delete Character to the Right
Ctrl + E - End Line
Ctrl + F - Forward Character
Ctrl + H - Backspace Character to the Left
Ctrl + I - Refresh Line and Goto End
Ctrl + J - Return
Ctrl + K - Delete everything on the Right of cursor
Ctrl + L - Refresh Line
Ctrl + M - Return
Ctrl + N - Next Command
Ctrl + P - Previous Command
Ctrl + R - Refresh Line
Ctrl + T - Flip Last 2 Characters
Ctrl + U - Clear Line and Put in Buffer
Ctrl + V - Allows A Control Character To Be Typed
Ctrl + W - Delete Word Backwards and Put in Buffer
Ctrl + X - Clear Line to the Left and Put in Buffer
Ctrl + Y - Paste Buffer Contents