Hi there
I have a simple group with two buckets:
group_id=3,type=select,selection_method=dp_hash,selection_method_param=1,bucket=bucket_id:1,actions=load:0x1->OXM_OF_PKT_REG0[],output:4,bucket=bucket_id:2,actions=load:0x2->OXM_OF_PKT_REG0[],output:7
I have a healthy mix of UDP with different src/dst IP's and ports hitting this
group but I always get hits only on the last bucket:
group_id=3,duration=2391.520s,ref_count=1,packet_count=73932,byte_count=94881408,bucket0:packet_count=0,byte_count=0,bucket1:packet_count=264177,byte_count=176152324
This also happens even if I add a bucket with a huge weight and another bucket
after that with a weight of 1.
Tracing a packet also looks weird:
ovs-appctl ofproto/trace xipbr
in_port=1G-01,udp,nw_src=192.168.22.1,nw_dst=192.168.22.139,nw_tos=0,nw_ecn=0,udp_src=23865,udp_dst=80,dl_src=55:55:55:55:55:55,dl_dst=66:66:66:66:66:66
Flow:
udp,in_port=2,vlan_tci=0x0000,dl_src=55:55:55:55:55:55,dl_dst=66:66:66:66:66:66,nw_src=192.168.22.1,nw_dst=192.168.22.139,nw_tos=0,nw_ecn=0,nw_ttl=0,tp_src=23865,tp_dst=80
bridge("xipbr")
---------------
0. in_port=2, priority 200
load:0x1->OXM_OF_PKT_REG1[]
resubmit(,3)
3. reg2=0,reg3=0x1, priority 0
group:3
-> no live bucket
Final flow:
udp,reg3=0x1,in_port=2,vlan_tci=0x0000,dl_src=55:55:55:55:55:55,dl_dst=66:66:66:66:66:66,nw_src=192.168.22.1,nw_dst=192.168.22.139,nw_tos=0,nw_ecn=0,nw_ttl=0,tp_src=23865,tp_dst=80
Megaflow: recirc_id=0,eth,ip,in_port=2,dl_dst=66:66:66:66:66:66,nw_frag=no
Datapath actions: hash(l4(1)),recirc(0x50)
See 'no live bucket'.
Note the ports/interfaces in question are Linux virtual tunnel interfaces
connected to KVM VMs.
This is on Ubuntu 20.04 (kernel 5.4.0) and OVS 2.13.8. OVS 2.13.0 shows the
same.
Another setup of mine on Ubuntu 18.04 and OVS 2.9.8 does not have this issue.
I've tried adding 'watch_port=4' to the buckets but then the kernel complains
with OFPGMFC_WATCH_UNSUPPORTED. I tried 'watch_port=ANY', which the kernel
accepts, but the behavior remains the same.
Any ideas/help much appreciated!
Gerrie
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