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FAQ-What Is the Meaning of Parameters in the FIB

Publication Date:  2012-07-27 Views:  31 Downloads:  0
Issue Description
Q:
What is the meaning of parameters in the FIB?
      
Alarm Information
Null
Handling Process
A:
Parameters in the FIB are as follows:Destination address: the destination network address or host address of the transmitted packet.
Prefix length: the prefix length of the destination address. It can determine whether the destination address corresponds to the network or host.
Nexthop: the adjacent next-hop address that the packet passes to reach the destintion address.
Flag (s): the routing characters, as follows:
 G: gateway.
 S: static route.
 D: dynamic route.
 U: the routing status is Up.
 B: black hole route, that is, the next-hop is null.
 H: the next-hop is the host.
Interface: the output interface.
Timestamp: the time when FIB is created. It is not used for forwarding. However, it can be used as the reference for fault diagnosis and troubleshooting in the distributed system. It can also be used to check whether FIB is refreshed from the main control board to I/O. Besides, it is used for internal aging.
      
Root Cause
Null
Suggestions
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