Difference between revisions of "Basic concepts - useful for the certification"

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(Created page with " '''Provisioning levels''' -nominal: what's needed, additional as needed -minimum: what's needed, no additional resources -dedicated: take everything, one module only")
 
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[[Category:F5 Networks]]
  
  
 
'''Provisioning levels'''
 
'''Provisioning levels'''
-nominal: what's needed, additional as needed
+
*nominal: what's needed, additional as needed
-minimum: what's needed, no additional resources
+
*minimum: what's needed, no additional resources
-dedicated: take everything, one module only
+
*dedicated: take everything, one module only
 +
 
 +
'''Elements'''
 +
*node = ip addres of physical device
 +
*pool member = node + service port
 +
*pool = group of related pool members for load balancing
 +
*virtual server = web listerner (often associated with a pool)
 +
 
 +
'''Processing order'''
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#Existing connection in conn table
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#Packet filter rule
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#Virtual Server
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#SNAT
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#NAT
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#SelfIP (check lockdown)
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#Drop
 +
 
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'''Types of Virtual Server'''
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*Standard Virtual Server
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*Forwarding IP
 +
*Forwarding L2
 +
*Performance HTTP
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*Performance L4
 +
*DHCP Relay
 +
 
 +
'''Virtual Address Status'''
 +
*green circle - enabled
 +
*yellow triangle - unavailable (conn limit)
 +
*red diamond - offline due associated object
 +
*black circle - disabled
 +
*blue square - unknown (no monitors associated)
 +
 
 +
'''Pool Status'''
 +
*green circle - any pool member available
 +
*yellow triangle - no pool member available (conn limit)
 +
*red diamond - offline due monitor
 +
*black circle - disabled
 +
*blue square - unknown (no monitors associated or unreachable)
 +
 
 +
'''Pool Member Status'''
 +
*green circle - enabled
 +
*yellow triangle - unavailable (conn limit)
 +
*red diamond - unavailable (pool/node down)
 +
*black circle - disabled (monitor detects up)
 +
*black diamond - disabled
 +
*blue square - unknown (no monitors associated or unreachable)
 +
 
 +
Pool member disabled still process persistent/active connections (but not when Down)
 +
 
 +
Pool member Forced Offline no new connections (just active)
 +
 
 +
Virtual Server disabled still process persistent/active connections

Revision as of 04:54, 1 August 2016


Provisioning levels

  • nominal: what's needed, additional as needed
  • minimum: what's needed, no additional resources
  • dedicated: take everything, one module only

Elements

  • node = ip addres of physical device
  • pool member = node + service port
  • pool = group of related pool members for load balancing
  • virtual server = web listerner (often associated with a pool)

Processing order

  1. Existing connection in conn table
  2. Packet filter rule
  3. Virtual Server
  4. SNAT
  5. NAT
  6. SelfIP (check lockdown)
  7. Drop

Types of Virtual Server

  • Standard Virtual Server
  • Forwarding IP
  • Forwarding L2
  • Performance HTTP
  • Performance L4
  • DHCP Relay

Virtual Address Status

  • green circle - enabled
  • yellow triangle - unavailable (conn limit)
  • red diamond - offline due associated object
  • black circle - disabled
  • blue square - unknown (no monitors associated)

Pool Status

  • green circle - any pool member available
  • yellow triangle - no pool member available (conn limit)
  • red diamond - offline due monitor
  • black circle - disabled
  • blue square - unknown (no monitors associated or unreachable)

Pool Member Status

  • green circle - enabled
  • yellow triangle - unavailable (conn limit)
  • red diamond - unavailable (pool/node down)
  • black circle - disabled (monitor detects up)
  • black diamond - disabled
  • blue square - unknown (no monitors associated or unreachable)

Pool member disabled still process persistent/active connections (but not when Down)

Pool member Forced Offline no new connections (just active)

Virtual Server disabled still process persistent/active connections