Hi,
Possibly a repeat question on classifier. But could not get much help from
other threads on this regards.
I am trying to send UDP traffic from 10.10.122.117 to 10.10.121.179 and expect
those to hit to my plugin "my4-dl-input"
Don't even see the ip4-classifier in the packet tracer.
Below is what I set and see the classifier table and session using CLI.
#vppctl classify table mask hex <24 bit mask on IPv4 destination>
//I used hex mask here.
#vppctl classify session hit-next node my4-dl-input table-index 0 match l3 ip4
dst 10.10.121.x/24 //I used corresponding hex match here.
#vppctl show classify table verbose
TableIdx Sessions NextTbl NextNode
0 1 -1 -1
Heap: 3 objects, 208 of 2k used, 72 free, 0 reclaimed, 1k overhead, 2044k
capacity
nbuckets 2, skip 1 match 2
mask 0000000000000000000000000000ffffff000000000000000000000000000000
[1]: heap offset 192, len 1
0: [192]: next_index 14 advance 0 opaque -1
k: 00000000000000000000000000000a0a79000000000000000000000000000000
hits 0, last_heard 0.00
1 active elements
1 free lists
And in the code of my4-dl-input node, init function has below peice.
vlib_node_add_next (vm, ip4_classify_node.index, my4_dl_input_node.index);
vlib_node_add_next (vm, ip6_classify_node.index, my4_dl_input_node.index);
Below is the packet tracer output.
00:14:18:666771: dpdk-input
GigabitEthernet1b/0/0 rx queue 0
buffer 0xf548: current data 14, length 856, free-list 0, totlen-nifb 0, trace
0x2e
PKT MBUF: port 1, nb_segs 1, pkt_len 870
buf_len 2176, data_len 870, ol_flags 0x0,
packet_type 0x10
Packet Types
RTE_PTYPE_L3_IPV4 (0x0010) IPv4 packet without extension headers
IP4: 00:0c:29:7a:a6:81 -> 00:50:56:92:fe:49
UDP: 10.10.122.117 -> 10.10.121.179
tos 0x00, ttl 64, length 856, checksum 0x2f59
fragment id 0x0000, flags DONT_FRAGMENT
UDP: 56587 -> 4096
length 836, checksum 0x8ae8
00:14:18:666777: ip4-input-no-checksum
UDP: 10.10.122.117 -> 10.10.121.179
tos 0x00, ttl 64, length 856, checksum 0x2f59
fragment id 0x0000, flags DONT_FRAGMENT
UDP: 56587 -> 4096
length 836, checksum 0x8ae8
00:14:18:666782: ip4-lookup
fib 0 adj-idx 3 : arp GigabitEthernet13/0/0 10.10.121.220/24 flow hash:
0x00000000
UDP: 10.10.122.117 -> 10.10.121.179
tos 0x00, ttl 64, length 856, checksum 0x2f59
fragment id 0x0000, flags DONT_FRAGMENT
UDP: 56587 -> 4096
length 836, checksum 0x8ae8
00:14:18:666783: ip4-arp
UDP: 10.10.122.117 -> 10.10.121.179
tos 0x00, ttl 64, length 856, checksum 0x2f59
fragment id 0x0000, flags DONT_FRAGMENT
UDP: 56587 -> 4096
length 836, checksum 0x8ae8
00:14:18:666788: error-drop
ip4-arp: address overflow drops
I believe show vlib graph shows the nodes at right place.
ip4-lookup ip4-miss [0] my4-dl-input
ip4-drop [1] my4_lookup
ip4-punt [2] my4_test_input
ip4-local [3] dhcp-proxy-to-server
ip4-arp [4] lisp-cp-lookup
ip4-rewrite-transit [5] vxlan-gpe-encap
ip4-classify [6] mpls-post-rewrite
ip4-map [7] ip6-map-t-tcp-udp
ip4-map-t [8] ip6-map-t-icmp
ip4-sixrd [9] ip6-map-t-fragmented
ip4-indirect [10] ip6-sixrd
ip4-hop-by-hop [11] ip6-map-icmp-relay
ip4-add-hop-by-hop [12] ip6-map-ip4-reass
ip4-pop-hop-by-hop [13] ip6-map
ip4-classify ip4-miss [0] ip4-pop-hop-by-hop
ip4-drop [1] ip4-add-hop-by-hop
ip4-punt [2] ip4-hop-by-hop
ip4-local [3] ip4-lookup-multicast
ip4-arp [4] ip4-indirect
ip4-rewrite-transit [5] ip4-lookup
ip4-classify [6] ip4-classify
ip4-map [7]
ip4-map-t [8]
ip4-sixrd [9]
ip4-indirect [10]
ip4-hop-by-hop [11]
ip4-add-hop-by-hop [12]
ip4-pop-hop-by-hop [13]
my4-dl-input [14]
mpls-policy-encap [15]
What's the missing stuff ?
Thanks
Dharmaray
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