H3C Technologies H3C S10500 Series Switches - Manual (Page 175)

166
To do… Use the command… Remarks
Configure the minimum interval for
receiving BFD control packets
bfd min-receive-interval value
Optional
For relevant information, see the
description of the Required Min RX
Interval field in “ BFD packet
format .”
400 milliseconds by default
Configure the detection time
multiplier
bfd detect-multiplier value
Optional
For relevant information, see the
description of the Detect Mult field
in “ BFD packet format .”
5 by default
In
Figure
43 for example, if you configure the Desired Min TX Interval as 100 milliseconds, Required Min
RX Interval as 300 milliseconds, and Detect Mult as 5 on Router A, and configure the Desired Min TX
Interval as 150 milliseconds, Required Min RX Interval as 400 milliseconds, and Detect Mult as 10 on
Router B,
• The actual transmitting interval on Router A is 400 milliseconds, which is the greater value between
the minimum interval for transmitting BFD control packets on Router A (100 milliseconds) and the
minimum interval for receiving BFD control packets on Router B (400 milliseconds).
• The actual transmitting interval on Router B is 300 milliseconds, which is the greater value between
the minimum interval for transmitting BFD control packets on Router B (150 milliseconds) and the
minimum interval for receiving BFD control packets on Router A (300 milliseconds).
• The actual detection time on Router A is 3000 milliseconds, which is 10 × 300 milliseconds (Detect
Mult on Router B × actual transmitting interval on Router B).
• The actual detection time on Router B is 2000 milliseconds, which is 5 × 400 milliseconds (Detect
Mult on Router A × actual transmitting interval on Router A).
Displaying and maintaining BFD
To do… Use the command… Remarks
Display information about
BFD-enabled interfaces display bfd interface [ verbose ] [ | { begin | exclude |
include } regular-expression ] Available in any
view
Display information about
enabled BFD debugging display bfd debugging-switches [ | { begin | exclude |
include } regular-expression ] Available in any
view
Display BFD session information
(in standalone mode)
display bfd session [ slot slot-number [ all | verbose ] |
verbose ] [ | { begin | exclude | include }
regular-expression ]
Available in any
view
Display BFD session information
(in IRF mode)
display bfd session [ chassis chassis-number slot
slot-number [ all | verbose ] | verbose ] [ | { begin |
exclude | include } regular-expression ]
Available in any
view
Clear BFD session statistics (in
standalone mode)
reset bfd session statistics [ slot slot-number ]
Available in user
view
Clear BFD session statistics (in
IRF mode) reset bfd session statistics [ chassis chassis-number slot
slot-number ] Available in user
view