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Configuring IP Parameters for CTP Bundles (CTPView)

The CTP software uses the IP parameters to create IP packets.

Before you begin:

  • Log in to the CTPView software at least at the Net_Admin level.

  • Connect the CTPView server to the CTP device for which you want to configure bundles.

To configure IP parameters for CTP bundles using CTPView:

  1. In the side pane, select Bundle > Configuration.
  2. Run your mouse over the Display and Select an Existing Bundle bar.
  3. In the table of bundles, select the bundle that you want to modify.
  4. Under Bundle Options, configure the parameters as described in Table 1 and click Click to Submit Bundle AND Port Changes.
Table 1: CTP Bundle IP Parameter Settings in CTPView
Field Function Your Action

Bundle Description

Specifies identifying information about the bundle.

You can use the bundle description as the search criteria when you search for bundles from the network monitoring page.

Type a description for the bundle.

State

Specifies whether the bundle is active or disabled.

Select DISABLED or ACTIVE.

Remote Address

Specifies the name and IP address of the remote CTP device.

In the first field, select the CTP device.

In the second field, select an interface on the CTP device.

Remote Circuit ID

Specifies the bundle to connect to on the remote CTP device.

Enter a number from 0 through 249.

Local Circuit ID

Specifies the bundle on the local CTP device.

Enter a number from 0 through 249.

Packet Size

Specifies the size of IP packets that are created from data received at the serial port.

The CTP device makes sure that the combination of packet size and data rate does not result in a packet rate that exceeds 1200 packets per second.

Select a packet size.

For CTP150 devices, the available packet size is 8 through 1456.

For CTP2000 devices, the available packet size is 4 through 1456.

Min Buffer

Specifies the minimum average buffer size. Use a value that is greater than the expected jitter and less than the Buffer Set parameter.

The minimum buffer ensures that the buffer does not become too small because of timing variances between the local and remote serial interfaces.

The entire buffer is available for accommodating and smoothing packet delay jitter, regardless of the minimum buffer setting.

Enter a number from 0.001 through 9999.000 milliseconds.

Buffer Set

Specifies the buffer size when the circuit enters a running state. This value must be large enough to accommodate the anticipated packet delay, and it must be set to a value greater than the minimum buffer size and lower than the maximum buffer size.

Enter a number from 0.001 through 9999.000 milliseconds.

Max Buffer

Specifies the maximum buffer size. The maximum buffer ensures that the buffer does not become too large due to timing variances between the local and remote serial interfaces. If the buffer size exceeds the maximum buffer size, the buffer is recentered to the Buffer Set value.

Periodic buffer recenters are not expected. If you notice recenters, we recommend that you verify the reference to the CTP (if used) or that you configure one port with adaptive clocking.

Enter a number from 0.001 through 9999.000 milliseconds.

Service Type

Specifies the ToS byte to be used in the IP headers of packets sent from the CTP device to the IP network.

For a mapping of ToS byte values to DSCP classes and settings, see Providing QoS for CTP Bundles by Using Service Type Overview.

You do not need to set the ToS value to the same value on local and remote bundles.

Enter a number from 0 through 255.

Time to Live

Specifies the maximum number of router hops that a packet can traverse. The CTP device sets the TTL value in IP packets that it sends to the IP network. The IP network does not alter or optimize the packet routing based on the TTL setting. You do not need to set the same TTL value on local and remote ports.

Enter a number from 0 through 255.