[ovs-discuss] It doesn't work when Packet-Out to a Group and in_port=Controller, where the type of group is "select".
陳奕任
yiren at cs.nctu.edu.tw
Thu May 21 14:50:21 UTC 2020
Hello,
==== What you did that make the problem appear. ====
I use Ryu as the OpenFlow controller.
I try to use Packet-Out with Actions=ActionGroup(1) and in_port=Controller,
where the type of group 1 is "select".
There is only one bucket and the bucket has only one ActionOutput to a
physical port, because I am doing a small test for a project.
I use OpenFlow13 firstly, and then I try to use OpenFlow15. both of them
have the same problem.
==== What you expected to happen. ====
My composed packets should be sent
==== What actually happened. ====
no packet is sent.
==== other trials (other information that I think might be relevant.) ====
(1) If I change the group type to "FastFailover", it works.
(2) if I change the in_port to "Local", it works.
(3) if I change the Action=ActionOutput(Table), and add a flow entry
which match is "in_port=controller" and "actions=group(1)", it doesn't
work. I use " ovs-ofctl dump-group-stats" to check packet_count and
byte_count, but they are not increased.
However, the packet_count and byte_count are increased on the flow entry
when I use ovs-ofctl dump-flows to check them.
==== ovs-vswitchd --version ====
ovs-vswitchd (Open vSwitch) 2.13.0
==== lsb_release -a ====
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
==== cat /proc/version ====
Linux version 5.4.0-29-generic (buildd at lgw01-amd64-035) (gcc version 9.3.0
(Ubuntu 9.3.0-10ubuntu2)) #33-Ubuntu SMP Wed Apr 29 14:32:27 UTC 2020
==== cat /etc/openvswitch/conf.db ====
OVSDB JSON 14579 892cfc6166ea6fd67706f743281587f1734d3616
{"cksum":"1076640191
26427","name":"Open_vSwitch","version":"8.2.0","tables":{"Controller":{"columns":{"local_gateway":{"type":{"min":0,"key":"string"}},"enable_async_messages":{"type":{"min":0,"key":"boolean"}},"local_netmask":{"type":{"min":0,"key":"string"}},"type":{"type":{"min":0,"key":{"type":"string","enum":["set",["primary","service"]]}}},"controller_rate_limit":{"type":{"min":0,"key":{"minInteger":100,"type":"integer"}}},"role":{"ephemeral":true,"type":{"min":0,"key":{"type":"string","enum":["set",["master","other","slave"]]}}},"max_backoff":{"type":{"min":0,"key":{"minInteger":1000,"type":"integer"}}},"inactivity_probe":{"type":{"min":0,"key":"integer"}},"connection_mode":{"type":{"min":0,"key":{"type":"string","enum":["set",["in-band","out-of-band"]]}}},"is_connected":{"ephemeral":true,"type":"boolean"},"status":{"ephemeral":true,"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"other_config":{"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"external_ids":{"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"controller_burst_limit":{"type":{"min":0,"key":{"minInteger":25,"type":"integer"}}},"local_ip":{"type":{"min":0,"key":"string"}},"controller_queue_size":{"type":{"min":0,"key":{"minInteger":1,"maxInteger":512,"type":"integer"}}},"target":{"type":"string"}}},"Bridge":{"indexes":[["name"]],"columns":{"name":{"mutable":false,"type":"string"},"flood_vlans":{"type":{"max":4096,"min":0,"key":{"minInteger":0,"maxInteger":4095,"type":"integer"}}},"stp_enable":{"type":"boolean"},"ports":{"type":{"max":"unlimited","min":0,"key":{"type":"uuid","refTable":"Port"}}},"auto_attach":{"type":{"min":0,"key":{"type":"uuid","refTable":"AutoAttach"}}},"fail_mode":{"type":{"min":0,"key":{"type":"string","enum":["set",["secure","standalone"]]}}},"rstp_enable":{"type":"boolean"},"rstp_status":{"ephemeral":true,"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"flow_tables":{"type":{"max":"unlimited","min":0,"key":{"minInteger":0,"maxInteger":254,"type":"integer"},"value":{"type":"uuid","refTable":"Flow_Table"}}},"netflow":{"type":{"min":0,"key":{"type":"uuid","refTable":"NetFlow"}}},"datapath_type":{"type":"string"},"controller":{"type":{"max":"unlimited","min":0,"key":{"type":"uuid","refTable":"Controller"}}},"other_config":{"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"external_ids":{"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"status":{"ephemeral":true,"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"ipfix":{"type":{"min":0,"key":{"type":"uuid","refTable":"IPFIX"}}},"mirrors":{"type":{"max":"unlimited","min":0,"key":{"type":"uuid","refTable":"Mirror"}}},"datapath_id":{"ephemeral":true,"type":{"min":0,"key":"string"}},"mcast_snooping_enable":{"type":"boolean"},"protocols":{"type":{"max":"unlimited","min":0,"key":{"type":"string","enum":["set",["OpenFlow10","OpenFlow11","OpenFlow12","OpenFlow13","OpenFlow14","OpenFlow15"]]}}},"sflow":{"type":{"min":0,"key":{"type":"uuid","refTable":"sFlow"}}},"datapath_version":{"type":"string"}}},"Queue":{"isRoot":true,"columns":{"external_ids":{"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"other_config":{"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"dscp":{"type":{"min":0,"key":{"minInteger":0,"maxInteger":63,"type":"integer"}}}}},"IPFIX":{"columns":{"cache_active_timeout":{"type":{"min":0,"key":{"minInteger":0,"maxInteger":4200,"type":"integer"}}},"obs_point_id":{"type":{"min":0,"key":{"minInteger":0,"maxInteger":4294967295,"type":"integer"}}},"other_config":{"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"external_ids":{"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"sampling":{"type":{"min":0,"key":{"minInteger":1,"maxInteger":4294967295,"type":"integer"}}},"targets":{"type":{"max":"unlimited","min":0,"key":"string"}},"obs_domain_id":{"type":{"min":0,"key":{"minInteger":0,"maxInteger":4294967295,"type":"integer"}}},"cache_max_flows":{"type":{"min":0,"key":{"minInteger":0,"maxInteger":4294967295,"type":"integer"}}}}},"NetFlow":{"columns":{"active_timeout":{"type":{"key":{"minInteger":-1,"type":"integer"}}},"engine_type":{"type":{"min":0,"key":{"minInteger":0,"maxInteger":255,"type":"integer"}}},"engine_id":{"type":{"min":0,"key":{"minInteger":0,"maxInteger":255,"type":"integer"}}},"add_id_to_interface":{"type":"boolean"},"external_ids":{"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"targets":{"type":{"max":"unlimited","key":"string"}}}},"Open_vSwitch":{"maxRows":1,"isRoot":true,"columns":{"statistics":{"ephemeral":true,"type":{"max":"unlimited","min":0,"key":"string","value":"string"}},"dpdk_initialized":{"type":"boolean"},"manager_options":{"type":{"max":"unlimited","min":0,"key":{"type":"uuid","refTable":"Manager"}}},"cur_cfg":{"type":"integer"},"dpdk_version":{"type":{"min":0,"key":"string"}},"next_cfg":{"type":"integer"},"iface_types":{"type":{"max"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OVSDB JSON 1535 9ac38d509b26648fa425f9c2fe3f411a910e9613
{"Interface":{"34f03dec-2806-4695-b344-abac13e0df71":{"name":"adapter","ofport":65534,"type":"internal"},"b6f0fe12-ecf8-45bb-9488-f8021ad146f7":{"name":"eth2","ofport":1}},"Port":{"4c124413-5bff-4e21-b336-bd160ed46b19":{"name":"eth2","interfaces":["uuid","b6f0fe12-ecf8-45bb-9488-f8021ad146f7"]},"c2d7360c-a2b0-4cb2-8bb3-a97350074aee":{"name":"adapter","interfaces":["uuid","34f03dec-2806-4695-b344-abac13e0df71"]}},"Controller":{"513341e5-519c-430d-a4e5-e9a1e1218dde":{"target":"tcp:
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database
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==== ovs-dpctl show ====
system at ovs-system:
lookups: hit:34 missed:98 lost:0
flows: 0
masks: hit:59 total:0 hit/pkt:0.45
port 0: ovs-system (internal)
port 1: adapter (internal)
port 2: eth2
==== ovs-ofctl -O OpenFlow15 show adapter ====
OFPT_FEATURES_REPLY (OF1.5) (xid=0x2): dpid:0000bad0babe0051
n_tables:254, n_buffers:0
capabilities: FLOW_STATS TABLE_STATS PORT_STATS GROUP_STATS QUEUE_STATS
BUNDLES
OFPST_PORT_DESC reply (OF1.5) (xid=0x3):
1(eth2): addr:de:21:68:80:7d:8f
config: 0
state: LIVE
current: 10GB-FD COPPER
speed: 10000 Mbps now, 0 Mbps max
LOCAL(adapter): addr:26:fb:30:e3:af:44
config: 0
state: LIVE
speed: 0 Mbps now, 0 Mbps max
OFPT_GET_CONFIG_REPLY (OF1.5) (xid=0x9): frags=normal miss_send_len=0
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