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DES-7200 Configuration Guide Chapter 3 BFD Configuration
3-7
Cautio
n
1. The demand mode is not supported in firmware v10.4(1),
v10.3(4b3) and v10.3(5).
2. The no ip redirects command must be executed to disable the
redirect function of the IP packets and the no ip deny land
command must be executed to disable the function of anti-attack
of the Land-based DDOS before configuring the echo mode. The
BFD echo function works on the condition that the version of the
BFD control packet is version 1.
3.2.3 BFD Session Parameter
The BFD session parameters(for example, Desired Min Tx Interval, Required
Min Rx Interval, Detect Mult, ect) can be modified after the BFD session is
established. The modified BFD session will renegotiate and use the newest
parameter value to detect the session. During the modification, the session
keeps in the UP state.
3.2.4 BFD Authentication Method
The BFD authentication methods include:
1. Simple Password
2. Keyed MD5
3. Meticulous Keyed MD5
4. Keyed SHA1
5. Meticulous Keyed SHA1
Caution
The BFD authentication is not supported in firmware v10.4(1),
v10.3(4b3) and v10.3(5).
3.2.5 BFD for Dynamic Route
Protocols
Configuring BFD for the route protocols improves the convergence performance
of the protocol by taking advantages of the faster fault detection of the BFD in
comparison to the HELLO mechanism of the protocol. Generally, the fault
detection time can be decreased to less than 1s. Firmware v10.4(1), v10.3(4b3)
and v10.3(5) support the following route protocols: