HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 286
Configuring BFD for IPv6 static routes, Bidirectional control mode
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Configuring BFD for IPv6 static routes BFD provides a general purpose, standard, and 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 and MPLS. For more information about BFD, see High Availability Configuration Guide. IMPORTANT: Enabling BFD for a flapping route could worsen the situation. Bidirectional control mode To use BFD bidirectional control detection between two devices, 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 an IPv6 static route (direct next hop): Step 1. Enter system view. 2. Configure BFD control mode for an IPv6 static route. Command system-view • Method 1: ipv6 route-static ipv6-address prefix-length interface-type interface-number next-hop-address bfd control-packet [ preference preference-value ] [ tag tag-value ] [ description description-text ] • Method 2: ipv6 route-static vpn-instance s-vpn-instance-name ipv6-address prefix-length interface-type interface-number next-hop-address bfd control-packet [ preference preference-value ] [ tag tag-value ] [ description description-text ] Remarks N/A Use either method. By default, BFD control mode for an IPv6 static route is not configured. To configure BFD control mode for an IPv6 static route (indirect next hop): Step 1. Enter system view. Command system-view Remarks N/A 275
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