[#OVSDB-226] Termination Point (Gre Interface) not getting removed from the switch.

[OVSDB-226] Termination Point (Gre Interface) not getting removed from the switch. Created: 18/Nov/15 Updated: 30/Oct/17 Resolved: 19/Apr/16
Status:	Resolved
Project:	ovsdb
Component/s:	Southbound.Open_vSwitch
Affects Version/s:	unspecified
Fix Version/s:	None

Type:

Bug

Reporter:

Bhalaji Narayanan

Assignee:

Vishal Thapar

Resolution:

Done

Votes:

Labels:

None

Remaining Estimate:

Not Specified

Time Spent:

Not Specified

Original Estimate:

Not Specified

Environment:

Operating System: Linux
Platform: All

Attachments:

karaf.log.tpcreate.txt

karaf.log.tpdelete.txt

tp-create.pcapng

tp-delete.pcapng

External issue ID:

4644

Description

Unable to delete Termination point from the Switch. The Entry is getting removed from the Ovsdb Configuration Database.
Please see below for detailed steps...
Also, look for the below attachments:
1. ODL logs (trace mode) – Look in karaf.log.tpdelete.txt timestamp between: 2015-11-16 01:28:48 & 2015-11-16 01:29:02
2. In the tp-delete.pcapng, look at frames 41 & 43.

Detailed steps to reproduce this issue:
---------------------------------------
STEP 1: After connecting the Ovs, before creating the TP.

GET:
http://192.168.56.104:8181/restconf/operational/network-topology:network-topology/

"network-topology": {
"topology": [
{
"topology-id": "ovsdb:1",
"node": [
{
"node-id": "ovsdb://uuid/72391c99-db7f-40b6-a65a-56de332791b5/bridge/s1",
"termination-point": [

{ "tp-id": "s1", "ovsdb:port-uuid": "9296d57a-345b-4b59-ab40-8f5af1897117", "ovsdb:ofport": 65534, "ovsdb:interface-type": "ovsdb:interface-type-internal", "ovsdb:interface-uuid": "f3b5a2b3-fc2d-48e4-852d-2135bf5b7d09", "ovsdb:name": "s1" }

{ "tp-id": "s1-eth1", "ovsdb:port-uuid": "8cdd8fa7-da99-4fe6-a18b-01678bffbe11", "ovsdb:ofport": 1, "ovsdb:interface-uuid": "2ae1f628-501e-4bd1-b6e0-75cde1ea0a15", "ovsdb:name": "s1-eth1" }

],
"ovsdb:controller-entry": [

{ "target": "ptcp:6634", "is-connected": false, "controller-uuid": "dc7797df-d4c6-4b36-badb-4ddc0c5394bd" }

{ "target": "tcp:192.168.56.104:6653", "is-connected": true, "controller-uuid": "8c43c7a5-efec-4deb-90d8-567d0721935c" }

],
"ovsdb:bridge-name": "s1",
"ovsdb:datapath-type": "ovsdb:datapath-type-system",
"ovsdb:datapath-id": "00:00:00:00:00:00:00:01",
"ovsdb:managed-by": "/network-topology:network-topology/network-topology:topology[network-topology:topology-id='ovsdb:1']/network-topology:node[network-topology:node-id='ovsdb://uuid/72391c99-db7f-40b6-a65a-56de332791b5']",
"ovsdb:bridge-openflow-node-ref": "/network-topology:network-topology/network-topology:topology[network-topology:topology-id='ovsdb:1']/network-topology:node[network-topology:node-id='ovsdb://uuid/72391c99-db7f-40b6-a65a-56de332791b5']",
"ovsdb:fail-mode": "ovsdb:ovsdb-fail-mode-secure",
"ovsdb:protocol-entry": [

{ "protocol": "ovsdb:ovsdb-bridge-protocol-openflow-13" }

],
"ovsdb:bridge-uuid": "d797bdde-9f78-4bf1-9ed5-1c6c281230ad",
"ovsdb:bridge-other-configs": [

{ "bridge-other-config-key": "datapath-id", "bridge-other-config-value": "0000000000000001" }

]
},
{
"node-id": "ovsdb://uuid/72391c99-db7f-40b6-a65a-56de332791b5",
"ovsdb:managed-node-entry": [

{ "bridge-ref": "/network-topology:network-topology/network-topology:topology[network-topology:topology-id='ovsdb:1']/network-topology:node[network-topology:node-id='ovsdb://uuid/72391c99-db7f-40b6-a65a-56de332791b5/bridge/s1']" }

],
"ovsdb:ovs-version": "2.3.1",
"ovsdb:openvswitch-external-ids": [

{ "external-id-key": "system-id", "external-id-value": "c0e3b61f-a6d6-497f-a0b5-2c64dd058d5f" }

],
"ovsdb:connection-info":

{ "local-port": 6640, "local-ip": "192.168.56.104", "remote-ip": "192.168.56.104", "remote-port": 52475 }

}
]
},

---------------------------------------------------------------
On the switch before TP creation.

mininet> sh ovs-vsctl show
72391c99-db7f-40b6-a65a-56de332791b5
Manager "tcp:192.168.56.104:6640"
is_connected: true
Bridge "s1"
Controller "tcp:192.168.56.104:6653"
is_connected: true
Controller "ptcp:6634"
fail_mode: secure
Port "s1-eth1"
Interface "s1-eth1"
Port "s1"
Interface "s1"
type: internal
ovs_version: "2.3.1"
mininet>
-----------------------------------------------------------------

STEP 2: Creating the TP:
POST:
http://192.168.56.104:8181/restconf/config/network-topology:network-topology/topology/ovsdb%3A1/node/ovsdb%3A%2F%2Fuuid%2F72391c99-db7f-40b6-a65a-56de332791b5%2Fbridge%2Fs1/

{
"termination-point": [
{
"tp-id": "dp1.4-interface-2",
"ovsdb:interface-type": "ovsdb:interface-type-gre",
"ovsdb:options": [

{ "option": "key", "value": "flow" }

{ "option": "local_ip", "value": "10.1.1.2" }

{ "option": "remote_ip", "value": "10.1.1.4" }

],
"ovsdb:name": "dp1.4-interface-2"
}
]
}
----------------
On The Switch:

mininet> sh ovs-vsctl show
72391c99-db7f-40b6-a65a-56de332791b5
Manager "tcp:192.168.56.104:6640"
is_connected: true
Bridge "s1"
Controller "tcp:192.168.56.104:6653"
is_connected: true
Controller "ptcp:6634"
fail_mode: secure
Port "dp1.4-interface-2"
Interface "dp1.4-interface-2"
type: gre
options:

{key=flow, local_ip="10.1.1.2", remote_ip="10.1.1.4"}
Port "s1-eth1"
Interface "s1-eth1"
Port "s1"
Interface "s1"
type: internal
ovs_version: "2.3.1"
mininet>

-------------------------------
GET: (Topology Config DS)
http://192.168.56.104:8181/restconf/config/network-topology:network-topology/

{
"network-topology": {
"topology": [
{
"topology-id": "ovsdb:1",
"node": [
{
"node-id": "ovsdb://uuid/72391c99-db7f-40b6-a65a-56de332791b5/bridge/s1",
"termination-point": [
{
"tp-id": "dp1.4-interface-2",
"ovsdb:options": [
{ "option": "key", "value": "flow" },
{ "option": "remote_ip", "value": "10.1.1.4" },
{ "option": "local_ip", "value": "10.1.1.2" }
],
"ovsdb:interface-type": "ovsdb:interface-type-gre",
"ovsdb:name": "dp1.4-interface-2"
}
]
}
]
}
]
}
}

GET:
http://192.168.56.104:8181/restconf/config/network-topology:network-topology/topology/ovsdb%3A1/node/ovsdb%3A%2F%2Fuuid%2F72391c99-db7f-40b6-a65a-56de332791b5%2Fbridge%2Fs1/termination-point/dp1.4-interface-2/
{
"termination-point": [
{
"tp-id": "dp1.4-interface-2",
"ovsdb:options": [
{ "option": "key", "value": "flow" },
{ "option": "remote_ip", "value": "10.1.1.4" },
{ "option": "local_ip", "value": "10.1.1.2" }
],
"ovsdb:interface-type": "ovsdb:interface-type-gre",
"ovsdb:name": "dp1.4-interface-2"
}
]
}

STEP 3: Delete the TP.
DELETE:
http://192.168.56.104:8181/restconf/config/network-topology:network-topology/topology/ovsdb%3A1/node/ovsdb%3A%2F%2Fuuid%2F72391c99-db7f-40b6-a65a-56de332791b5%2Fbridge%2Fs1/termination-point/dp1.4-interface-2/

GET:
http://192.168.56.104:8181/restconf/config/network-topology:network-topology/topology/ovsdb%3A1/node/ovsdb%3A%2F%2Fuuid%2F72391c99-db7f-40b6-a65a-56de332791b5%2Fbridge%2Fs1/termination-point/dp1.4-interface-2/

{
"errors": {
"error": [
{ "error-type": "application", "error-tag": "data-missing", "error-message": "Request could not be completed because the relevant data model content does not exist " }
]
}
}

On the switch:
mininet> sh ovs-vsctl show
72391c99-db7f-40b6-a65a-56de332791b5
Manager "tcp:192.168.56.104:6640"
is_connected: true
Bridge "s1"
Controller "tcp:192.168.56.104:6653"
is_connected: true
Controller "ptcp:6634"
fail_mode: secure
Port "dp1.4-interface-2"
Interface "dp1.4-interface-2"
type: gre
options: {key=flow, local_ip="10.1.1.2", remote_ip="10.1.1.4"}

Port "s1-eth1"
Interface "s1-eth1"
Port "s1"
Interface "s1"
type: internal
ovs_version: "2.3.1"
mininet>

------------------------------------------

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