Fib entry appears correctly when I configure classifier first and interfaces later:

DBGvpp# classify table mask l3 ip4 src
DBGvpp# sh classify tables
TableIdx Sessions NextTbl NextNode
0 0 -1 -1
Heap: 1 objects, 64 of 2k used, 48 free, 0 reclaimed, 1k overhead, 2044k capacity
nbuckets 2, skip 1 match 1
mask 00000000000000000000ffffffff0000
DBGvpp# classify session hit-next node li-hit-ip4 table-index 0 match l3 ip4 src 192.168.1.14
DBGvpp# sh classify tables
TableIdx Sessions NextTbl NextNode
0 1 -1 -1
Heap: 3 objects, 176 of 2k used, 72 free, 0 reclaimed, 1k overhead, 2044k capacity
nbuckets 2, skip 1 match 1
mask 00000000000000000000ffffffff0000
DBGvpp# set ip classify intfc GigabitEthernet0/10/0 table-index 0
DBGvpp# set interface ip address GigabitEthernet0/10/0 192.168.1.13/24
DBGvpp# set interface state GigabitEthernet0/10/0 up
DBGvpp# set interface ip address GigabitEthernet0/11/0 192.168.2.13/24
DBGvpp# set interface state GigabitEthernet0/11/0 up
DBGvpp# show interface address
GigabitEthernet0/10/0 (up):
192.168.1.13/24
GigabitEthernet0/11/0 (up):
192.168.2.13/24
GigabitEthernet0/9/0 (dn):
GigabitEthernet0/a/0 (dn):
local0 (dn):
DBGvpp# sh ip fib
ipv4-VRF:0, fib_index 0, flow hash: src dst sport dport proto
0.0.0.0/0
unicast-ip4-chain
[@0]: dpo-load-balance: [index:0 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
0.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:1 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
192.168.1.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [index:12 buckets:1 locks:1 to:[0:0]]
[0] [@4]: glean: GigabitEthernet0/10/0
192.168.1.13/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:13 buckets:1 locks:1 to:[0:0]]
[0] [@11]: classify:[0]:table:0
192.168.2.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [index:14 buckets:1 locks:1 to:[0:0]]
[0] [@4]: glean: GigabitEthernet0/11/0
192.168.2.13/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:15 buckets:1 locks:1 to:[0:0]]
[0] [@2]: dpo-receive: 192.168.2.13 on GigabitEthernet0/11/0
224.0.0.0/8
unicast-ip4-chain
[@0]: dpo-load-balance: [index:3 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
240.0.0.0/8
unicast-ip4-chain
[@0]: dpo-load-balance: [index:2 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
255.255.255.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:4 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop

If I configure interfaces first and assign classifier later with old fib version, table didn’t appear in fib immediately, but switching corresponding interface down-up wild do the job.

Recently configuring interfaces first and classifier later doesn’t appear in fib at all:

DBGvpp# set interface ip address GigabitEthernet0/10/0 192.168.1.13/24
DBGvpp# set interface state GigabitEthernet0/10/0 up
DBGvpp# set interface ip address GigabitEthernet0/11/0 192.168.2.13/24
DBGvpp# set interface state GigabitEthernet0/11/0 up
DBGvpp# show interface address
GigabitEthernet0/10/0 (up):
192.168.1.13/24
GigabitEthernet0/11/0 (up):
192.168.2.13/24
GigabitEthernet0/9/0 (dn):
GigabitEthernet0/a/0 (dn):
local0 (dn):
DBGvpp# sh ip fib
ipv4-VRF:0, fib_index 0, flow hash: src dst sport dport proto
0.0.0.0/0
unicast-ip4-chain
[@0]: dpo-load-balance: [index:0 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
0.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:1 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
192.168.1.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [index:12 buckets:1 locks:1 to:[0:0]]
[0] [@4]: glean: GigabitEthernet0/10/0
192.168.1.13/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:13 buckets:1 locks:1 to:[0:0]]
[0] [@2]: dpo-receive: 192.168.1.13 on GigabitEthernet0/10/0
192.168.2.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [index:14 buckets:1 locks:1 to:[0:0]]
[0] [@4]: glean: GigabitEthernet0/11/0
192.168.2.13/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:15 buckets:1 locks:1 to:[0:0]]
[0] [@2]: dpo-receive: 192.168.2.13 on GigabitEthernet0/11/0
224.0.0.0/8
unicast-ip4-chain
[@0]: dpo-load-balance: [index:3 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
240.0.0.0/8
unicast-ip4-chain
[@0]: dpo-load-balance: [index:2 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
255.255.255.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:4 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
DBGvpp# classify table mask l3 ip4 src
DBGvpp# sh classify tables
TableIdx Sessions NextTbl NextNode
0 0 -1 -1
Heap: 1 objects, 64 of 2k used, 48 free, 0 reclaimed, 1k overhead, 2044k capacity
nbuckets 2, skip 1 match 1
mask 00000000000000000000ffffffff0000
DBGvpp# classify session hit-next node li-hit-ip4 table-index 0 match l3 ip4 src 192.168.1.14
DBGvpp# sh classify tables
TableIdx Sessions NextTbl NextNode
0 1 -1 -1
Heap: 3 objects, 176 of 2k used, 72 free, 0 reclaimed, 1k overhead, 2044k capacity
nbuckets 2, skip 1 match 1
mask 00000000000000000000ffffffff0000
DBGvpp# set ip classify intfc GigabitEthernet0/10/0 table-index 0
DBGvpp# sh ip fib
ipv4-VRF:0, fib_index 0, flow hash: src dst sport dport proto
0.0.0.0/0
unicast-ip4-chain
[@0]: dpo-load-balance: [index:0 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
0.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:1 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
192.168.1.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [index:12 buckets:1 locks:1 to:[0:0]]
[0] [@4]: glean: GigabitEthernet0/10/0
192.168.1.13/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:13 buckets:1 locks:1 to:[0:0]]
[0] [@2]: dpo-receive: 192.168.1.13 on GigabitEthernet0/10/0
192.168.2.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [index:14 buckets:1 locks:1 to:[0:0]]
[0] [@4]: glean: GigabitEthernet0/11/0
192.168.2.13/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:15 buckets:1 locks:1 to:[0:0]]
[0] [@2]: dpo-receive: 192.168.2.13 on GigabitEthernet0/11/0
224.0.0.0/8
unicast-ip4-chain
[@0]: dpo-load-balance: [index:3 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
240.0.0.0/8
unicast-ip4-chain
[@0]: dpo-load-balance: [index:2 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
255.255.255.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:4 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
DBGvpp#* set interface state GigabitEthernet0/10/0 down*
DBGvpp# set interface state GigabitEthernet0/10/0 up
DBGvpp# sh ip fib
ipv4-VRF:0, fib_index 0, flow hash: src dst sport dport proto
0.0.0.0/0
unicast-ip4-chain
[@0]: dpo-load-balance: [index:0 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
0.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:1 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
192.168.1.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [index:12 buckets:1 locks:1 to:[0:0]]
[0] [@4]: glean: GigabitEthernet0/10/0
192.168.1.13/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:13 buckets:1 locks:1 to:[0:0]]
[0] [@2]: dpo-receive: 192.168.1.13 on GigabitEthernet0/10/0
192.168.2.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [index:14 buckets:1 locks:1 to:[0:0]]
[0] [@4]: glean: GigabitEthernet0/11/0
192.168.2.13/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:15 buckets:1 locks:1 to:[0:0]]
[0] [@2]: dpo-receive: 192.168.2.13 on GigabitEthernet0/11/0
224.0.0.0/8
unicast-ip4-chain
[@0]: dpo-load-balance: [index:3 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
240.0.0.0/8
unicast-ip4-chain
[@0]: dpo-load-balance: [index:2 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop
255.255.255.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [index:4 buckets:1 locks:1 to:[0:0]]
[0] [@0]: dpo-drop