bier_table_t_ Struct Reference

A BIER Table is the bit-indexed forwarding table. More...

Collaboration diagram for bier_table_t_:

Public Member Functions
	CLIB_CACHE_LINE_ALIGN_MARK (cacheline0)
	Everything before this declaration is unused in the switch path. More...

Data Fields
mpls_label_t	bt_ll
	Save the MPLS local label associated with the table. More...
fib_node_index_t	bt_pl
	The path-list used for the ECMP-tables. More...
fib_node_index_t	bt_lfei
	The index of the lfib entry created for this table. More...
u16	bt_locks
	Number of locks on the table. More...
index_t *	bt_entries
	Entries in the table This is a vector sized to the appropriate number of entries given the table's supported Bit-string length. More...
bier_table_id_t	bt_id
	The identity/key or the table. More...
index_t *	bt_fmasks
	f-masks in the ECMP table This is a vector sized to the appropriate number of entries given the table's supported Bit-string length. More...

Detailed Description

A BIER Table is the bit-indexed forwarding table.

Each entry (bit-position) represents one destination, and its reachability

The number of entries in a table is thus the maximum supported bit-position. Since this is smal <4096, the table is a flat arry

Definition at line 38 of file bier_table.h.

Member Function Documentation

bier_table_t_::CLIB_CACHE_LINE_ALIGN_MARK

(

cacheline0

)

Everything before this declaration is unused in the switch path.

Field Documentation

index_t* bier_table_t_::bt_entries

Entries in the table This is a vector sized to the appropriate number of entries given the table's supported Bit-string length.

Definition at line 65 of file bier_table.h.

index_t* bier_table_t_::bt_fmasks

f-masks in the ECMP table This is a vector sized to the appropriate number of entries given the table's supported Bit-string length.

In the ECMP table the LB choice has been pre-resolved, so each entry links to just one f-mask, i.e. there is a 1:1 mapping of bit-position to fmask. For efficient forwarding we collapse the fmasks up to the table.

Definition at line 85 of file bier_table.h.

bier_table_id_t bier_table_t_::bt_id

The identity/key or the table.

we need the hdr_len in the data-path

Definition at line 75 of file bier_table.h.

fib_node_index_t bier_table_t_::bt_lfei

The index of the lfib entry created for this table.

Only the EOS is required.

Definition at line 53 of file bier_table.h.

mpls_label_t bier_table_t_::bt_ll

Save the MPLS local label associated with the table.

Definition at line 42 of file bier_table.h.

u16 bier_table_t_::bt_locks

Number of locks on the table.

Definition at line 58 of file bier_table.h.

fib_node_index_t bier_table_t_::bt_pl

The path-list used for the ECMP-tables.

Definition at line 47 of file bier_table.h.

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

• src/vnet/bier/bier_table.h