bier_fmask_bits_t_ Struct Reference

bier_fmask : The BIER fmask More...

Collaboration diagram for bier_fmask_bits_t_:

Data Fields
bier_bit_string_t	bfmb_input_reset_string
	each bit in the mask needs to be reference counted and set/cleared on the 0->1 and 1->0 transitions. More...
u32 *	bfmb_refs
u32	bfmb_count
	The total number of references to bits set on this mask in effect a count of the number of children. More...

Detailed Description

bier_fmask : The BIER fmask

The BIER fmask contains the bitString that is applied to packets that egress towards the next-hop. As such the fmask is part of the rewrite (adj) for that next-hop. It it thus an extension of the next-hop and in no way associated with the bit-position(s) that are reachable through it. Fmasks are thus shared by bit-positions that egress throught the same nh (BFR-NBR). Deag fmasks are also shread in the event that a router has local bit-positions. This is necessary to prevent the router recieving two copies of each packet. Consequently it also means that they share the same disposition data for the global data. A struct that represents the reference counting of the bits

Definition at line 45 of file bier_fmask.h.

Field Documentation

u32 bier_fmask_bits_t_::bfmb_count

The total number of references to bits set on this mask in effect a count of the number of children.

Definition at line 57 of file bier_fmask.h.

bier_bit_string_t bier_fmask_bits_t_::bfmb_input_reset_string

each bit in the mask needs to be reference counted and set/cleared on the 0->1 and 1->0 transitions.

Definition at line 50 of file bier_fmask.h.

u32* bier_fmask_bits_t_::bfmb_refs

Definition at line 51 of file bier_fmask.h.

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The documentation for this struct was generated from the following file:

• src/vnet/bier/bier_fmask.h