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AeroHive HMOL Redirector issue

When using the HMOL solution from AeroHive, an access-point will discover the correct HiveManager by connecting to staging.aerohive.com. Within the HiveManager management interface you can see which access-points have been redirected to your HMOL. This can be down by checking the Device Access Control List within the Redirector configuration.

Sometimes you will notice that not all the serial numbers are listed on this page. When this is the issue the new access-points will not connect to your HiveManager. You can try to enter the serial numbers yourself by using a csv file or enter the serial number separately. Most times I receive an error message for multiple serial numbers, like shown below.

Same serial number “serial number” already exists. Cannot override the catagory information.

When you receive this error message, you have to redirect the access-point yourself. This can be down very easily. Connect via SSH to an access-point, which is redirected to your HiveManager. Enter the following command and look for the following two lines:

AH-001#show config current
!
capwap client server name <AeroHive HMOL hostname>
capwap client vhm-name <Hive-name>

Now login to the access-point, which aren’t redirected to your HiveManager. You have to retrieve the IP address settings of these access-points and just login with the default username (admin) and password (aerohive). Just paste the 2 commands in the config.

The only thing you need to do now is, sit back and enjoy your coffee.

AeroHive – access to MyHive landing page

The AeroHive user, which is created by default, gets a landing page, when logging into https://myhive.aerohive.com. The user can choose between the HiveManager Online and the Redirector.

When the users chooses the HiveManager Online or the Redirector, the user has the option to return to landing page by choosing the MyHive option in the upper right corner.

Subsequent users don’t get the landing page by default and don’t have the option to choose the MyHive option. Subsequent users (even if the belong to the group Configuration and Monitoring) don’t have the permissions to access the Redirector.

The default user has the option to provide access to the landing page. This configuration is done per user and can only be done by the default user. Just edit the user and enable the option “Give user access to MyHive landing page”.

When the users logs in to his HiveManager page, he will get the landing page to choose between the HiveManager Online and the Redirector.

Cisco WLC – Upgrade FUS image

Today I upgraded a FUS image on a Cisco WLC 5500 controller, because I also upgrade the WLC software to 7.2.103.0. The FUS upgrade is straightforward and comparable to a regular software update. The only difference is that you need console access to perform the upgrade. The FUS image upgrades the following components:

• Field Recovery Image is upgraded to runtime image version
• Bootloader is upgraded to 1.0.16
• Offline Field Diagnostics is upgraded to 0.9.28
• FPGA Revision version is upgraded to 1.7
• Environment Controller (MCU) Image version is upgraded to 1.8
• USB Console Revision version is upgraded to 2.2

During the upgrade process you have to confirm to proceed the upgrade, like shown below

Checking for Field recovery image upgrade

Field Recovery Image upgrade …

        Upgrade Field Recovery Image from version 6.0.182.0 to 7.0.112.21

        Are you sure you want to proceed (y/N) ? y
        ******************************************************************
* Please make sure POWER SUPPLY is always ON during this period. *    ******************************************************************

Erasing Flash (estimated 49 seconds) …

Writing to flash (estimated 716 seconds) …

This happens multiple times and the controller reboots several times during the upgrade. It took about 20 minutes for the complete upgrade of the FUS image.

HP Virtual Connect Manager

While change the configuration of within a HP Virtual Connect Manager I noticed that I didn’t have any options to delete server profiles, Ethernet Networks or Shared Uplink Sets within the web browser.

I needed to change the configuration dramatically from an active / standby configuration to an active / active configuration. I also needed to change the complete server profile configuration and Ethernet Networks configuration.

I noticed that I can also connect through SSH to the HP VC Flex-10 Enet modules. This presents a CLI with different command options. And of course I had more options within the CLI compared to the web interface.

——————————————————————————-
HP Virtual Connect Management CLI v3.18
Build: 3.18-3 (r46087) Apr  1 2011 17:45:49
(C) Copyright 2006-2011 Hewlett-Packard Development Company, L.P.
All Rights Reserved
——————————————————————————-

GETTING STARTED:

help           : displays a list of available subcommands
exit           : quits the command shell
<subcommand> ? : displays a list of managed elements for a subcommand
<subcommand> <managed element> ? : displays detailed help for a command

->?

Through the CLI I had the option to remove the server profiles, Ethernet Networks and the configured Shared Uplink Set. The help command (?) is very useful to check the command syntax to remove different configuration settings. You have to remove the different items in the correct order. I used the following order:

1. 1. Server Profile : remove profile <profile_name>
2. 2. Ethernet Networks : remove network <enet_name>
3. 3 Shared Uplink Set : remove uplinkset <sus_name>

When you try to delete the items in the wrong order you will receive an error message on the console, like shown below.

->remove uplinkset SUS1
ERROR: Operation not allowed : The requested shared uplink set is currently in use by one or more networks

After deleting the configuration I configured my desired setup. The configuration can be a lit bumpy, which depends on the firmware used with the Virtual Connect Manager. I found a very good article on configuring HP Virtual Connect Manager in conjunction with ESX, Windows Hyper-V.

HP Virtual Connect Ethernet Cookbook: Single and Multiple Enclosure Domain

TIP: when configuring or changing Ethernet network settings on a Server Profile, first unassigned the profile from the bay. Changing settings on an unassigned profile is much faster than on an assigned profile.

Cisco Spanning Tree Scalability

A colleague (Twitter: @Toonieh) mentioned spanning-tree scalability in a Cisco network. He had an article about this matter. All the credits on this post go to him. I found the article on internet and post it here to be able to find it quickly..

In a Layer 2 looped topology design, spanning tree processing instances are created on each interface for each active VLAN. These logical instances are used by the spanning tree process in processing the spanning tree-related packets for each VLAN. These instances are referred to as active logical ports and virtual ports. Both active logical ports and virtual ports are important values to consider in spanning tree designs because they affect STP convergence time and stability. These values are usually only of concern on the aggregation layer switches because they typically have a larger number of trunks and VLANs configured than other layers in the data center topology.

Click here for the original article