vpp -c /etc/vpp/startup.conf
ipfix classify table add ip4 0
를 하면 인터페이스가 다운되고 죽음
set ipfix classify stream domain 0
set ipfix exporter collector 192.168.1.254 port 8888 src 192.168.1.1 fib-id 0
set ioam export ipfix collector 192.168.1.254 src 192.168.1.1
test classify
show classify tables
vpp# show classify tables
TableIdx Sessions NextTbl NextNode
0 10 -1 0
Heap: 10 objects, 16k of 18k used, 364 free, 0 reclaimed, 2k overhead, 65532k capacity
nbuckets 2, skip 0 match 3
mask 00000000: 0000000000000000000000000000000000000000000000000000ffffffff0000
00000020: 00000000000000000000000000000000
vpp# ipfix classify table add ip4 0
vpp#
Program received signal SIGSEGV, Segmentation fault.
ipfix_classify_template_rewrite (frm=0x7ffff752e5e0 <flow_report_main>, fr=0x7fffb690ee18,
collector_address=0x7ffff752e5f0 <flow_report_main+16>, src_address=0x7ffff752e5f8 <flow_report_main+24>,
collector_port=8888) at /root/vpp/build-data/../vnet/vnet/flow/flow_report_classify.c:71
71 ip_start = ((u8 *)(tblp->mask)) + l3_offset;
vpp# ipfix classify table add ip4 0
ipfix classify table: Specified classifier table already used
이걸봐서는 classify table은 여러 용도로 사용될 수 있음
classify table을 생성해야 하는데 생성하지 않아서 그런듯