Cisco N7K-C7010 Configuration Guide - Page 137

Chapter 5 Configuring Bidirectional Forwarding Detection Configuring BFD Send document comments to [email protected] 5. (Optional) copy running-config startup-config DETAILED STEPS Step 1 Command configure terminal Purpose Enters configuration mode. Step 2 Example: switch# configure terminal switch(config)# bfd interval mintx min_rx msec multiplier value Example: switch(config)# bfd interval 50 min_rx 50 multiplier 3 Step 3 bfd slow-timer [interval] Example: switch(config)# bfd slow-timer 2000. Step 4 show running-config bfd Configures the BFD session parameters for all BFD sessions on the device. You can override these values by configuring the BFD session parameters on an interface. The mintx and msec range is from 50 to 999 milliseconds and the default is 50. The multiplier range is from 1 to 50. The multiplier default is 3. Configures the slow timer used in the echo function. This value determines how fast BFD starts up a new sessions and at what speed the asynchrounous sessions use for BFD control packets when the echo function is enabled. The slow-timer value is used as the new control packet interval, while the echo packets use the configured BFD intervals. The echo packets are used for link failure detection, while the control packets at the slower rate maintain the BFD session. The range is from 1000 to 30000 milliseconds. The default is 2000. (Optional) Displays the BFD running configuration. Step 5 Example: switch(config)# show running-config bfd copy running-config startup-config (Optional) Saves this configuration change. Example: switch(config)# copy running-config startup-config Configuring BFD on an Interface You can configure the BFD session parameters for all BFD sessions on an interface. The BFD session parameters are negotiated between the BFD peers in a three-way handshake. This configuration overrides the global session parameters for the configured interface. BEFORE YOU BEGIN Ensure that you are in the correct VDC (or use the switchto vdc command). Enable the BFD feature. See the "Enabling the BFD Feature" section on page 5-7. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 5-9