Key Notes

 f some one Saying Control Policy (interviewer / Customer/ partner) , Which keywords hit in your brain

 : Control POLICY = Topology Policy 
 : Control Policy fall under Centralised Policy (Centre of gravity is Vsmart )
 : Control policy impacts Control plane
 : Tweak OMP/TLOC route or both as per business requiremnt 
 : match , action ,set 
 : once control policy is ready , need to apply outbound/inbound direction from vsmart



Approach : All OMP from Site A , Site B and Site C advertised should have omp -tag 500 .
#
*******Site list Approach/Thought Process****************
So lets define site list ABC (11,12, 13) which have site id of site A.B,C as OMP-tag is common for all of them .
Lets define other Site list DC (100) , which will have only site id of DC .

 site-list ABC
 site-id 11-13
!
 site-list DC
 site-id 100

************Control Policy Approach/ Thought Process*************
Define control policy name :(Topology Policy )
We are choosing OMP route under Topology Policy/ Control policy .
Match : on Site-list and any prefix from site A , B, C
Action : Accept
Set : OMP tag 500


 control-policy XYZ
  sequence 1
   match route
   site-list ABC
   prefix-list Any_prefix
   !
   action accept
   set
    omp-tag 500
   !
   !
  !
 default-action accept
!

****Control Policy Calling in which direction and impact on which site*****************************

As DC supposed to recieved OMP from Site A, Site B , Site C With Tag 500 , so we will Call Site-list DC to get impacted with Control Policy XYZ from Outwards direction from Vsmart Prospective

site-list DC
 control-policy XYZ out