Manual Chapter : Common elements for local traffic pools

Applies To:

Show Versions Show Versions

BIG-IP DNS

  • 14.1.0

BIG-IP AFM

  • 14.1.0

BIG-IP Analytics

  • 14.1.0

BIG-IP PEM

  • 14.1.0

BIG-IP ASM

  • 14.1.0

BIG-IP AAM

  • 14.1.0

BIG-IP APM

  • 14.1.0

BIG-IP LTM

  • 14.1.0
Manual Chapter

Common elements for local traffic pools

Local traffic pools contain the resources to which the system distributes application traffic.
  1. On the Main tab, click
    Local Traffic
    Pools
    .
    The Pool List screen opens.
  2. On the Main tab, click
    DNS
    Delivery
    Load Balancing
    Pools
    .
    The Pool List screen opens.
  3. On the Main tab, click the applicable path.
    • DNS
      Delivery
      Load Balancing
      Pools
    • Local Traffic
      Pools
    The Pool List screen opens.
  4. Click
    Create
    .
    The New Pool screen opens.
  5. Click a pool name in the Pool List.
  6. Click the name of the pool you want to modify.
  7. In the
    Name
    field, type a unique name for the pool.
  8. In the
    Name
    field, type a unique name for the pool.
    An example of a pool name is
    external-pool
    .
  9. In the
    Name
    field, type a unique name for the pool of database servers that handles read-only transactions, for example
    ro_pool
    .
  10. In the
    Name
    field, type a unique name for the pool of database servers that handles write transactions, for example
    rw_pool
    .
  11. In the
    Name
    field, type a unique name for the pool.
    Names must begin with a letter, and can contain only letters, numbers, and the underscore (_) character.
    The pool name is limited to 63 characters.
  12. In the
    Name
    field, type a unique name for the pool.
    For this example
    www-pool
    .
    Names must begin with a letter, and can contain only letters, numbers, and the underscore (_) character.
    The pool name is limited to 63 characters.
  13. In the
    Name
    field, type a unique name for the pool of database servers.
  14. In the
    Name
    field, type a unique name for the web application pool.
  15. In the Name column, locate the pool member you want to disable.
  16. For the
    Health Monitors
    setting, in the
    Available
    list, select a monitor type, and click
    <<
    to move the monitor to the
    Active
    list.
    Hold the Shift or Ctrl key to select more than one monitor at a time.
  17. For the
    Health Monitors
    setting, from the
    Available
    list, select a monitor and move the monitor to the
    Active
    list.
    A pool containing nodes represented by FQDNs cannot be monitored by
    inband
    or
    sasp
    monitors.
  18. For the
    Health Monitors
    setting, from the
    Available
    list, select the
    gateway_icmp
    monitor and move the monitor to the
    Active
    list.
  19. For the
    Health Monitors
    setting, from the
    Available
    list, select the custom
    mssql
    monitor and move the monitor to the
    Active
    list.
  20. For the
    Health Monitors
    setting, from the
    Available
    list, select the
    http
    monitor and move the monitor to the
    Active
    list.
  21. For the
    Health Monitors
    setting, from the
    Available
    list, select the
    https
    monitor and move the monitor to the
    Active
    list.
  22. For the
    Health Monitors
    setting, from the
    Available
    list, select the custom DNS monitor you created and move the monitor to the
    Active
    list.
  23. From the
    Configuration
    list, select
    Advanced
    .
  24. From the
    Availability Requirement
    list, select the number of monitors that must report a pool member as being available before that member is defined as being in an up state.
  25. From the
    Allow SNAT
    list, select whether SNATs are automatically enabled or disabled for any connections using the pool.
  26. From the
    Allow NAT
    list, select whether NATs are automatically enabled or disabled for any connections using the pool.
  27. From the
    Action On Service Down
    list, specify the action that the BIG-IP system should take for a client connection if the target pool member goes down.
  28. In the
    Slow Ramp Time
    field, type the number of seconds that the BIG-IP system should send a less-than-normal amount of traffic to a newly-enabled pool member.
  29. From the
    IP ToS to Client
    list, select a specific Type of Service (ToS) level within a packet sent to a client, based on the targeted pool.
  30. From the
    IP ToS to Server
    list, select a specific Type of Service (ToS) level within a packet sent to a server, based on the targeted pool.
  31. In the
    Reselect Tries
    field, type the number of times that the system tries to contact a new pool member after a passive failure.
  32. In the
    Enable Request Queuing
    list, select
    Yes
    .
  33. In the
    Request Queue Depth
    field, type the maximum number of connections allowed in the queue.
    If you type zero (
    0
    ) or leave the field blank, the maximum number of queued connections is unlimited, constrained only by available memory.
  34. In the
    Request Queue Timeout
    field, type the maximum number of milliseconds that a connection can remain queued.
    If you type zero (
    0
    ) or leave the field blank, the maximum number of milliseconds is unlimited.
  35. From the
    Load Balancing Method
    list, select how the system distributes traffic to members of this pool.
    The default is
    Round Robin
    .
  36. From the
    Load Balancing Method
    list, select how the system distributes traffic to members of this pool.
    For pool members that are MS SQL database servers, consider
    Least Connections
    , which selects the server that provides the best response time.
  37. For the
    Priority Group Activation
    setting, specify how to handle priority groups:
    • Select
      Disabled
      to disable priority groups. This is the default option.
    • Select
      Less than
      , and in the
      Available Members
      field type the minimum number of members that must remain available in each priority group in order for traffic to remain confined to that group.
  38. Using the
    New Members
    setting, add each resource that you want to include in the pool:
    1. (Optional) In the
      Node Name
      field, type a name for the node portion of the pool member.
    2. In the
      Address
      field, type an IP address.
    3. In the
      Service Port
      field, type a port number, or select a service name from the list.
    4. (Optional) In the
      Priority
      field, type a priority number.
    5. Click
      Add
      .
  39. Using the
    New Members
    setting, add each resource that you want to include in the pool:
    1. (Optional) In the
      Node Name
      field, type a name for the node portion of the pool member.
    2. In the
      Address
      field, type an IP address.
      Because the route domain for this pool is the default route domain for the current administrative partition, you are not required to append the relevant route domain ID to this IP address.
    3. In the
      Service Port
      field, type a port number, or select a service name from the list.
    4. (Optional) In the
      Priority
      field, type a priority number.
    5. Click
      Add
      .
  40. Using the
    New Members
    setting, add each resource that you want to include in the pool:
    1. Select
      Node List
      .
    2. In the
      Address
      field, select the IP address of your alert server.
    3. In the
      Service Port
      field, select
      HTTP
      or
      HTTPS
      from the list.
    4. Click
      Add
      .
  41. Using the
    New Members
    setting, add each resource that you want to include in the pool:
    1. Select
      Node List
      .
    2. For the
      Address
      option, select the IP address of the web application server.
    3. For the
      Service Port
      option, select
      HTTP
      or
      HTTPS
      from the list.
    4. Click
      Add
      .
  42. Using the
    New Members
    setting, add each resource that you want to include in the pool:
    1. Select
      Node List
      .
    2. For the
      Address
      option, select the IP address of your cloud service.
    3. For the
      Service Port
      option, select
      HTTP
      or
      HTTPS
      from the list.
    4. Click
      Add
      .
  43. Using the
    New Members
    setting, add each resource that you want to include in the pool:
    1. (Optional) In the
      Node Name
      field, type a name for the node portion of the pool member.
    2. In the
      Address
      field, type an IP address.
      This address will reside on the internal subnet of the BIG-IP devices.
    3. In the
      Service Port
      field, type a port number, or select a service name from the list.
    4. (Optional) In the
      Priority
      field, type a priority number.
    5. Click
      Add
      .
  44. Using the
    New Members
    setting, add the resource that you want to include in the pool:
    1. (Optional) In the
      Node Name
      field, type a name for the node portion of the pool member.
    2. In the
      Address
      field, type an IP address.
      This address will reside on the external network of the ECMP-enabled upstream router.
    3. In the
      Service Port
      field, type a port number, or select a service name from the list.
    4. (Optional) In the
      Priority
      field, type a priority number.
    5. Click
      Add
      .
  45. Add each resource that you want to include in the pool using the
    New Members
    setting:
    1. Type an IP address in the
      Address
      field.
    2. Type
      21
      in the
      Service Port
      field, or select
      FTP
      from the list.
    3. (Optional) Type a priority number in the
      Priority
      field.
    4. Click
      Add
      .
  46. Add each DNS server that you want to include in the pool using the
    New Members
    setting:
    1. In the
      Address
      field, type the IP address of the DNS server.
    2. Type
      53
      in the
      Service Port
      field.
    3. (Optional) Type a priority number in the
      Priority
      field.
    4. Click
      Add
      .
  47. Using the
    New Members
    setting, add each resource that you want to include in the pool:
    1. Type an IP address in the
      Address
      field.
    2. Type
      80
      in the
      Service Port
      field, or select
      HTTP
      from the list.
    3. (Optional) Type a priority number in the
      Priority
      field.
    4. Click
      Add
      .
  48. Add the IP address for each logging server that you want to include in the pool, using the
    New Members
    setting:
    1. Type an IP address in the
      Address
      field, or select a node address from the
      Node List
      .
    2. Type the port number for the logging server in the
      Service Port
      field.
    3. (Optional) Type a priority number in the
      Priority
      field.
    4. Click
      Add
      .
  49. In the
    New Members
    setting, add the members that you want to include in the pool using FQDNs.
    1. Select
      FQDN Node List
      .
    2. From the
      Address
      list, select a node identified by an FQDN.
    3. Make a selection from the
      Service Port
      list.
    4. For
      Auto Populate
      , select
      Enabled
      .
      When
      Auto Populate
      is enabled, the system generates an ephemeral node for each IP address returned in response to a DNS query for the FQDN of the node. Additionally, when a DNS response indicates the IP address of an ephemeral node no longer exists, the system deletes the ephemeral node.
    5. Click
      Add
      .
  50. In the
    New Members
    setting, add the members that you want to include in the pool using FQDNs.
    1. Select
      FQDN Node List
      .
    2. From the
      Address
      list, select a node identified by an FQDN.
    3. Make a selection from the
      Service Port
      list.
  51. In the
    New Members
    setting, select
    Enabled
    . The options are:
    Enabled
    The system generates an ephemeral node for each IP address returned in response to a DNS query for the FQDN of the node. Additionally, when a DNS response indicates the IP address of an ephemeral node no longer exists, the system deletes the ephemeral node.
    Disabled
    The system selects the first address and generates an ephemeral for that address.
  52. In the
    New Members
    setting, add the members that you want to include in the pool using FQDNs.
    1. Select
      New FQDN Node
      .
    2. In the
      FQDN
      field, type the FQDN.
    3. From the
      Service Port
      list, make a selection.
    4. For the
      Auto Populate
      setting, select
      Enabled
      .
      When
      Auto Populate
      is enabled, the system generates an ephemeral pool member for each IP address returned in response to a DNS query for the FQDN. Additionally, when a DNS response indicates the IP address of an ephemeral pool member no longer exists, the system deletes the ephemeral pool member.
    5. Click
      Add
      .
  53. In the
    New Members
    setting, add at least one node with a static IP address. This node serves as a fallback if a DNS query returns no records for the nodes identified by FQDNs.
    1. Select
      Node List
      .
    2. From the
      Address
      list, select a node identified by a static IP address.
    3. From the
      Service Port
      list, make a selection.
    4. Click
      Add
      .
  54. Using the
    New Members
    setting, add the IP address for each remote logging server that you want to include in the pool:
    1. Type an IP address in the
      Address
      field, or select a node address from the
      Node List
      .
    2. Type a service number in the
      Service Port
      field, or select a service name from the list.
      Typical remote logging servers require port
      514
      .
    3. Click
      Add
      .
  55. Using the
    New Members
    setting, add the IP address for each database server that you want to include in the pool:
    1. Type an IP address in the
      Address
      field, or select a node address from the
      Node List
      .
    2. Type a service number in the
      Service Port
      field, or select a service name from the list.
      Typical TDS database servers require port
      1433
      .
    3. Click
      Add
      .
  56. Using the
    New Members
    setting, add the IP address for each IPFIX collector that you want to include in the pool:
    1. Type the collector's IP address in the
      Address
      field, or select a node address from the
      Node List
      .
    2. Type a port number in the
      Service Port
      field.
      By default, IPFIX collectors listen on UDP or TCP port
      4739
      and Netflow V9 devices listen on port
      2055
      , though the port is configurable at each collector.
    3. Click
      Add
      .
  57. Add each SMTP server that you want to include in the pool, using the
    New Members
    setting:
    1. Type an IP address in the
      Address
      , field or select a node address from the
      Node List
      .
    2. Type
      25
      in the
      Service Port
      field, or select
      SMTP
      from the list.
    3. Click
      Add
      .
  58. Use the
    New Members
    setting to add each resource that you want to include in the pool:
    1. In the
      Address
      field, type an IP address.
    2. In the
      Service Port
      field type
      443
      , or select
      HTTPS
      from the list.
    3. (Optional) Type a priority number in the
      Priority
      field.
    4. Click
      Add
      .
  59. Using the
    New Members
    setting, add each router that you want to include in the default gateway pool:
    1. Type the IP address of a router in the
      Address
      field.
    2. Type an asterisk (
      *
      ) in the
      Service Port
      field, or select
      *All Services
      from the list.
    3. Click
      Add
      .
  60. In the Resources area, for the
    New Members
    setting, add to the pool the application servers that host the web application:
    1. Type an IP address in the
      Address
      field.
    2. In the
      Service Port
      field, type a port number (for example, type
      80
      for the HTTP service), or select a service name from the list.
    3. Click
      Add
      .
  61. In the Resources area, for the
    New Members
    setting, add to the pool the application servers that host the web application:
    1. Type an IP address in the
      Address
      field.
    2. In the
      Service Port
      field, type a port number (for example, type
      80
      for the HTTP service), or select a service name from the list.
    3. In the
      Connection Limit
      field, type a number for the maximum number of connections.
    4. In the
      Connection Rate Limit
      field, type a number that specifies the number of new connections accepted per second for the pool member.
    5. Click
      Add
      .
  62. Click
    Finished
    .
  63. Click
    Finished
    .
    The screen refreshes, and you see the new pool in the Pool list.
  64. Click
    Cancel
    .
  65. Click
    Repeat
    and create another pool.
  66. Click
    Update
    .
  67. Click
    Update
    .
    The screen refreshes, and the status in the Availability area changes.
  68. Locate the
    Partition
    list in the upper right area of the BIG-IP Configuration utility screen, to the left of the
    Log out
    button.
  69. From the
    Partition
    list, select the partition in which you want to create local traffic objects.
  70. On the menu bar, click
    Members
    .
  71. In the
    Member
    list, select the relevant pool member.
  72. In the State area, click
    Disabled (Only persistent or active connections allowed)
    .
  73. For the
    State
    property, click
    Forced Offline (Only active connections allowed)
    .
  74. Locate the
    State
    property and view the selected value.
  75. Select the check box to the left of the pool member name.
  76. Click the
    Disable
    button.
  77. For the
    New Members
    setting, add each server that you want to include in the pool:
    1. Select
      New Node
      or
      New FQDN Node
      .
    2. (Optional) In the
      Node Name
      field, type a name for the node.
    3. If you chose
      New Node
      , then in the
      Address
      field, type the IP address of the server. If you chose
      New FQDN Node
      , then in the
      FQDN
      field, type the FQDN of the server.
      If you want to use FQDNs instead of IP addresses, you should still type at least one IP address. Typing one IP address ensures that the system can find a pool member if a DNS server is not available.
    4. For the
      Service Port
      option, pick a service from the list.
    5. If you are using FQDNs for the server names, then for
      Auto Populate
      , keep the default value of
      Enabled
      .
      When you leave
      Auto Populate
      turned on, the system creates an ephemeral node for each IP address returned as an answer to a DNS query. Also, when a DNS answer shows that the IP address of an ephemeral node no longer exists, the system deletes the ephemeral node.
    6. Click
      Add
      .
    7. Do this step again for each node.