BFD for Static Routing

Вся информация взята с cisco.com, публикую чтобы не забыть.

SWG

interface Loopback0

 ip address 10.10.10.1 255.255.255.255

!

interface FastEthernet0/1

 port-type nni

 no switchport

 ip address 1.1.1.0 255.255.255.254

 bfd interval 100 min_rx 100 multiplier 3

interface FastEthernet0/24

 no switchport

 ip address 2.2.2.0 255.255.255.254

ip route static bfd FastEthernet0/1 1.1.1.1

ip route 10.10.10.2 255.255.255.255 2.2.2.1

ip route 10.10.10.2 255.255.255.255 FastEthernet0/1 1.1.1.1

Router

interface Loopback0

 ip address 10.10.10.2 255.255.255.255

!

interface GigabitEthernet0/1

 ip address 1.1.1.1 255.255.255.254

 duplex auto

 speed auto

 bfd interval 100 min_rx 100 multiplier 3

!

interface GigabitEthernet0/2

 ip address 2.2.2.1 255.255.255.254

 duplex auto

 speed auto

!

ip route static bfd GigabitEthernet0/1 1.1.1.0

ip route 10.10.10.1 255.255.255.255 2.2.2.0

ip route 10.10.10.1 255.255.255.255 GigabitEthernet0/1 1.1.1.0

Можно BFD привязать к int Vlan и к подъинтерфейсу маршрутизатора (802.1q)

DETAILED STEPS

	Command or Action	Purpose
Step 1	enable  Example: Device> enable	Enables privileged EXEC mode.  Enter your password if prompted.
Step 2	configure terminal  Example: Device# configure terminal	Enters global configuration mode.
Step 3	interface type number Example: Device(config)# interface serial 2/0	Configures an interface and enters interface configuration mode.
Step 4	ip address ip-address mask  Example: Device(config-if)# ip address 10.201.201.1 255.255.255.0	Configures an IP address for the interface.
Step 5	bfd interval milliseconds min_rx milliseconds multiplier interval-multiplier Example: Device(config-if)# bfd interval 500 min_rx 500 multiplier 5	Enables BFD on the interface.
Step 6	exit  Example: Device(config-if)# exit	Exits interface configuration mode and returns to global configuration mode.
Step 7	ip route static bfd interface-type interface-number ip-address [group group-name [passive]] Example: Device(config)# ip route static bfd serial 2/0 10.1.1.1 group group1 passive	Specifies a static route BFD neighbor.  Theinterface-type,interface-number, and ip-addressarguments are required because BFD support exists only for directly connected neighbors.
Step 8	ip route [vrf vrf-name] prefix mask {ip-address | interface-type interface-number [ip-address]} [dhcp] [distance] [name next-hop-name] [permanent | track number] [tag tag] Example: Device(config)# ip route 10.0.0.0 255.0.0.0	Specifies a static route BFD neighbor.
Step 9	exit  Example: Device(config)# exit	Exits global configuration mode and returns to privileged EXEC mode.
Step 10	show ip static route  Example: Device# show ip static route	(Optional) Displays static route database information.
Step 11	show ip static route bfd  Example: Device# show ip static route bfd	(Optional) Displays information about the static BFD configuration from the configured BFD groups and nongroup entries.