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=Configure stacking on Aruba 2930F switches=

To configure stacking on Aruba 2930F switches use following steps:
# Connect to switch that should become master (commander) and enable vsf using:
#:<pre>
#::   vsf enable domain 1001
#:</pre>
#: After this switch would reboot and would become first member of vsf.  '''Choose a different domain ID 1-65k+ for every different vsf within organization'''.
# Then set priority of this switch higher than reset and configure the vsf links.  '''A single vsf link can have up to eight interfaces and connects two specific physical switches.  Thus, if you are creating ring topology and connecting switch 2 with both switch 1 and switch 3, then switch 2 will have two links configured, one with ports connected to switch1 and other with ports connected to switch2.'''
#:<pre>
#::   vsf member 1 priority 160
#::   vsf member 1 link 1 1/51
#::   vsf member 1 link 2 1/52
#:</pre>
# Note that now that we have enabled vsf domain the ports are 1/51 and 1/52 and not 51, 52.   We can see the vsf configuration or port numbering using:
#:<pre>
#:: show vsf
#:: show interface brief
#:</pre>
#:: Here against current switch a * would be shown in "show vsf" output.
# After enabling vsf on first switch connect the links as specified in above ports (port 51 to previous switch and port 52 to next switch) and power on second switch.
# On second swith use:
#:<pre>
#:: vsf member 2 link 1 51
#::   vsf member 2 link 2 52
#::   vsf member 2 priority 150
#::   vsf enable domain 1001
#:</pre>
#: Assuming port 51 of second switch is connected to port 52 of first switch.  Note that we have reduced priority for second switch so that it becomes '''standby'''.
# For any additional member switches use:
#:<pre>
#::  vsf member <member-id> link 1 51
#::  vsf member <member-id> link 2 52
#::  vsf member <member-id> priority 140
#::  vsf enable domain 1001
#:</pre>
# After every single switch joining the stack keep looking at '<tt>show vsf</tt>' output to ensure things are going as per plan.


==Removing stack==

To remove a switch from stack use:
<pre>
  vsf disable
</pre>
This might require removing vsf link  ('<tt>no vsf member &lt;id&gt; link 1 &lt;port&gt;'</tt>') before disabling vsf.


==Testing stack==

We can test stack by powering off a single switch or removing a single connecting cable.  However, restoring the component might still leave stack with lot of amber alerts.  To remove those amber alerts rebooting the current commander seems to solve the problem:
<pre>
reload
</pre>
Note that this means downtime for all hosts / switches connected to master.


Refer:
* https://community.arubanetworks.com/community-home/digestviewer/viewthread?MID=23423
* https://support.hpe.com/hpsc/doc/public/display?docId=a00050273en_us  (See VSF - Page 697 - Chapter 30)



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