BFD Template

The BFD template specifies a set of BFD interval values. BFD interval values as configured in the BFD template are not specific to a single interface. You can also configure authentication for single-hop and multi-hop sessions. Echo mode is disabled by default. You can enable Echo mode on single-hop only.

Procedure

Step 1

Choose Objects > Object Management > BFD Template.

Step 2

Click Add BFD Template or Edit.

Note

If you are editing a template, you cannot modify its name and type.

Step 3

On the Template tab, configure the following:

  • Template Name—The name of this BFD template. You must assign a name in order to configure the rest of the parameters in the template. The template name cannot have spaces and cannot have only numbers.

  • Type—Click the Single-Hop or Multi-Hop radio button.

  • Enable Echo—(Optional) Enables Echo for the single-hop template.

If the Echo function is not negotiated, BFD control packets are sent at a high rate to meet the detection time. If the Echo function is negotiated, BFD control packets are sent at a slower, negotiated rate and self-directed echo packets are sent at a high rate. We recommend that you use Echo mode, if possible.

Step 4

On the Interval tab, configure the following:

  1. From the Interval Type drop-down list, select Microseconds or Milliseconds.

  2. In the Multiplier field, enter the value to be used for computing the hold down time. This value indicates the number of consecutive BFD control packets that must be missed from a BFD peer before BFD declares that the peer is unavailable and the Layer 3 BFD peer is informed of the failure. The range is 3 to 50. The default is 3.

  3. In the Minimum Transmit field, enter the minimum transmit interval capability. The range is 50 to 999 milliseconds or 50000 to 999000 microseconds.

  4. In the Minimum Receive field, enter the minimum receive interval capability. The range is 50 to 999 milliseconds or 50000 to 999000 microseconds.

Step 5

On the Authentication tab, configure the following:

  • Authentication Type—Select NONE, md5, meticulous-sha-1, meticulous-md5, or sha-1 from the drop-down list.

  • Encrypted Password—(Optional) Enables encryption of the authentication password.

  • Password—The authentication password that must be sent and received in the packets using the routing protocol being authenticated. The valid value is a string containing 1 to 29 uppercase and lowercase alphanumeric characters, except that the first character CANNOT be a digit or a digit followed by a whitespace. For example, '1password' or '0 password' is invalid.

  • Key ID—The shared key ID that matches the key value. The range is 0 to 255.

Step 6

Click OK.

Step 7

Click Apply to save the BFD template configuration.