HP 6125XLG R2306-HP 6125XLG Blade Switch High Availability Configuration Guide - Page 96
Protocols and standards, Configuring BFD basic functions, Configuring echo packet mode
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Protocols and standards • RFC 5880, Bidirectional Forwarding Detection (BFD) • RFC 5881, Bidirectional Forwarding Detection (BFD) for IPv4 and IPv6 (Single Hop) • RFC 5882, Generic Application of Bidirectional Forwarding Detection (BFD) • RFC 5883, Bidirectional Forwarding Detection (BFD) for Multihop Paths Configuring BFD basic functions Before configuring BFD basic functions, configure the network layer addresses of the interfaces so that adjacent nodes are reachable to each other at the network layer. After a BFD session is established, the two ends negotiate BFD parameters, including minimum sending interval, minimum receiving interval, initialization mode, and packet authentication, by exchanging negotiation packets. They use the negotiated parameters without affecting the session status. Configuring echo packet mode Step Command Remarks 1. Enter system view. system-view N/A 2. Configure the source IP address of echo packets. Use either command. By default, no source IP address is configured for echo packets. • Configure the source IP address The source IP address cannot be on of echo packets: the same network segment as any bfd echo-source-ip ip-address local interface's IP address. • Configure the source IPv6 Otherwise, a large number of address of echo packets: ICMP redirect packets may be sent bfd echo-source-ipv6 from the peer, resulting in link ipv6-address congestion. The source IPv6 address of echo packets can only be a global unicast address. 3. Enter interface view. interface interface-type interface-number 4. (Optional.) Configure the minimum interval for receiving bfd min-echo-receive-interval BFD echo packets. value 5. (Optional.) Configure the single-hop detection time multiplier. bfd detect-multiplier value N/A The default setting is 400 milliseconds. The default setting is 5. Configuring control packet mode To configure control packet mode for single-hop detection: 91