if statement weight

Hi,

 

 

I need to check all the packets comming from certain vlans/subnets, thus I am wondering which check is lighter from LTM point of view: using LINK:vlan_id inside the if statement, or IP:client_addr?

 

 

when CLIENT_ACCEPTED {

 

if { [matchclass [IP::client_addr] equals $::mySubnet] }{

 

// do something

 

}

 

}

 

 

or

 

 

when CLIENT_ACCEPTED {

 

if { [LINK::vlan_id] equals $::myVlan }{

 

// do something

 

}

 

}

 

 

Thank you in advance.

 

 

Adrian