Connection Properties window

Use the Connection Properties window to set up the connection properties of a LAN, OSA, or VSWITCH connection.

Fields

After you have set these properties, you'll be able to choose this connection in the networking properties of server complexes.
The fields in this window show:
  • z/VM information about the connection. This information is read-only.
  • Linux networking definitions. You can edit this information.

The Connection Properties window contains the following fields:

z/VM Information

The fields in this part of the window are slightly different for LANs, OSAs, and VSWITCHes. These fields cannot be edited.

OSA Information
For an OSA, the displayed fields are:
  • Type – OSA
  • CHPID – Channel Path ID of the OSA
  • Base Real Device – base real device number of the OSA
  • Maximal Real Device – maximal real device number of the OSA
LAN Information
For a LAN, the displayed fields are:
  • Type – LAN
  • IO Protocol – IO protocol of the guest LAN. Possible values are QDIO for QDIO guest LANs and HIPERS for Hipersocket guest LANs
  • LAN Name – name of the guest LAN
  • LAN Owner – name of the owner of the guest LAN
  • Maximal Frame Size – maximal frame size allowed in the guest LAN
VSWITCH Information
For a VSWITCH, the displayed fields are:
  • Type – VSWITCH
  • VSWITCH Name – name of the guest VSWITCH
  • Maximal Frame Size – maximal frame size allowed in the VSWITCH
  • OSA Real Devices – list of the OSA real devices to which the VSWITCH is attached

Linux Networking Definitions

MTU
(Mandatory) Type an integer representing the maximal transmission unit. For a guest LAN, this number should not be larger than the maximal frame size (shown in the z/VM information at the top of the window).
Base IP Address
(Mandatory) Type the lowest IP address to be used when assigning an IP address to a Linux guest system that is configured on this connection. The Base IP Address and the IP Address Range define the pool of IP addresses for this connection. The available IP addresses are those between Base IP and Base IP + range -1, which are not included in the Occupied IP Addresses list.
IP Address Range
(Mandatory) Type the number of IP addresses, starting from Base IP Address, which can be used for assigning an IP address to a Linux guest system that is configured on this connection.
Netmask
(Mandatory) Type the subnet mask, to be used for the Linux routing configuration.
Default Gateway
(Optional) Type the default gateway for the connection.
Occupied IP Addresses Table
The list of occupied IP addresses in the range. The list includes both entries that were automatically added and entries that you can add manually. (Occupied IP addresses are added automatically when you click ActionScan for Occupied IPs in the z/VM Networking window and when you configure the network properties of Linux guest systems on this connection) Double-click a line in this table to open the Occupied IP Address Properties window for the selected IP address.
IP Address (in the Occupied IP Addresses Table)
The occupied IP address.
Guest (in the Occupied IP Addresses Table)
(Optional) The Linux guest system that owns the occupied IP address.
Interface (in the Occupied IP Addresses Table)
(Optional) The network interface name at the above Linux guest system.
Add
Opens the Occupied IP Address Properties window and lets you add an entry to the list of Occupied IP Addresses.
Edit
Opens the Occupied IP Address Properties window and lets you edit the selected entry in the Occupied IP Addresses list. This button is only enabled if exactly one entry is selected.
Remove
Removes the selected entries in the Occupied IP Addresses list. This button is enabled if at least one entry is selected.
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