HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Confi - Page 18
Configuring BFD for static routes, BFD control mode
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Step 3. Configure the default preference for static routes. Command ip route-static default-preference default-preference-value Remarks Optional. 60 by default. Configuring BFD for static routes Bidirectional forwarding detection (BFD) provides a general-purpose, standard, medium-, and protocol-independent fast failure detection mechanism. It can uniformly and quickly detect the failures of the bidirectional forwarding paths between two routers for protocols, such as routing protocols. For more information about BFD, see High Availability Configuration Guide. A dynamic routing protocol notifies BFD of its neighbor information. BFD uses such information to establish sessions with neighbors by sending BFD control packets. Static routing has no neighbor discovery mechanism. This section describes how static routing implements BFD. BFD control mode To use BFD bidirectional control detection between two devices, you must enable BFD control mode for each device's static route destined to the peer. To configure a static route and enable BFD control mode for it, specify an output interface and a direct next hop, or specify an indirect next hop and a specific BFD packet source address for the static route. To configure BFD control mode for a static route (direct next hop): Step 1. Enter system view. 2. Configure BFD control mode for a static route. Command Remarks system-view N/A • Approach 1: ip route-static dest-address { mask | mask-length } interface-type interface-number next-hop-address bfd control-packet [ preference preference-value ] [ tag tag-value ] [ description description-text ] • Approach 2: ip route-static vpn-instance s-vpn-instance-name& Use either approach. dest-address { mask | mask-length } interface-type interface-number next-hop-address bfd control-packet [ preference preference-value ] [ tag tag-value ] [ description description-text ] To configure BFD control mode for a static route (indirect next hop): Step 1. Enter system view. Command system-view Remarks N/A 8