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Configuring Separate Interfaces for Management and Circuit Traffic (CTP Menu)

 

In certain network topologies, a segregation is required between the circuit or Ethernet traffic and management traffic. Therefore, separate interfaces need to be used for the management and circuit networks so that traffic segregation can be achieved at the physical interface level. Starting with CTPOS Release 7.2, support for configuring two default gateways, one for management traffic and the other for circuit device, is available, which enables circuit and management traffic to be segregated.

Note

This feature is not supported with IPv6-only or independent IPv6 (and not a combination of IPv4 and IPv6) configuration. This limitation denotes that with IPv6 configuration settings specified on a CTP device, the option to separate management and circuit traffic is not available for configuration. If this feature is enabled on CTP150 devices, Ethernet failover cannot be activated because CTP150 devices contain only two Ethernet devices and the PCI mezzanine card (PMC) is not supported on such devices.

To configure separate interfaces for management traffic and circuit traffic on a CTP device using the CTP Menu:

  1. From the Main Menu, select 5) Node Operations.
  2. Select 3) Configure network settings to specify the network configuration parameters.
  3. Select 2) IPv4 Configuration to define the IPv4 attributes.
  4. A message is displayed stating that you are about to modify a system parameter that requires a network restart when the configuration settings are modified. If you proceed with the configuration settings, the network automatically restarts after you complete specifying the parameters, the existing menu session is terminated, and active circuits undergo traffic drops. You must reopen a new CTP Menu session to perform additional configuration changes.

    The message alerts you that if the parameters are incorrectly defined, the system might be unreachable over the network after the system restarts. Therefore, you must exercise caution while entering the attributes. Enter y to proceed with defining the interfaces for management and circuit traffic.

    Follow the onscreen instructions and configure the options as described inTable 1.

    Table 1: Configuring Separate Interfaces for Management and Circuit Traffic

    FieldFunctionYour Action

    Do you want to segregate circuit and management traffic (y/n)?

    Specifies whether you want to enable the capability to configure separate interfaces for management and circuit traffic.

    Lists the previously configured Ethernet devices that are available for use in the system. The default device is the device through which the default gateway can be accessed. CTP circuits can run over any Ethernet device, such as the default or non-default devices. A default device must be configured, while other devices might be configured and enabled or disabled.

    Specify y or n.

    Which device would you like to make the IPV4 default circuit device?

    Specifies the device or interface that you want to configure as the default circuit device for IPv4.

    Specify an interface from the list of available interfaces that were previously displayed in the CTP Menu as the default circuit interface.

    Specify rtn to set the interface that is prompted by the system to be specified as the default IPv4 circuit device. For example, if the prompt displays (rtn for eth1), and if you specify rtn, eth1 is set as the default circuit device.

    Which device would you like to make the IPV4 default management device?

    Specifies the device or interface that you want to configure as the default management device for IPv4.

    Specify an interface from the list of available interfaces that were previously displayed in the CTP Menu as the default management interface.

    Specify rtn to set the interface that is prompted by the system to be specified as the default IPv4 management device. For example, if the system prompt displays (rtn for eth0), and if you specify rtn, eth0 is set as the default management device.

    Note: You must not specify the same device for both management and circuit traffic. Otherwise, the system prompts you to enter the default circuit device and default management device again. For example, if you specify eth1 as the default interface for both circuit and management traffic, the system prompts you to enter the settings again.

    Please input the hostname

    Specifies the hostname of the CTP device.

    Enter the hostname of the CTP device. Press Enter to specify the default hostname.

    Please input the ip

    Specifies the IP address of the Ethernet interface.

    Enter an IP address.

    Please input the netmask

    For IPv4 interfaces, specifies the network mask.

    Enter the network mask.

    Please input the gateway

    Specifies the IP address of the next-hop gateway (the router).

    Enter an IP address.

    Please input the mtu in bytes

    Specifies the maximum transmission unit (MTU) for the Ethernet interface.

    For IPv4 networks, enter a number from 64 through 1500.

    Add route to interface eth

    Specifies whether or not to add static routes to the Ethernet configuration.

    Specify yes.

    Activate IPV4 interface eth on boot

    Specifies whether you want to activate the particular IPv4 interface during the boot operation.

    Enter y or n.