ONOS Ping for simple leaf spine architecture

badr...@gmail.com

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Aug 13, 2019, 11:14:57 AM8/13/19

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TOPOLOGY DESCRIPTION:

I have ONOS in a leaf/spine architecture.

Here is the diagram of this -

Host 1 ==> Leaf1 (Whitebox switch) ==> Spine (Whitebox switch) ==> Leaf 2 (Whitebox switch) ==> Host 2 and Host 3

Between leaf1, spine and Leaf 2 we are running Segmented routing -

onos> apps -a -s

* 5 org.onosproject.optical-model 1.13.3 Optical Network Model

* 6 org.onosproject.openflow-base 1.13.3 OpenFlow Base Provider

* 22 org.onosproject.netcfghostprovider 1.13.3 Network Config Host Provider

* 23 org.onosproject.drivers 1.13.3 Default Drivers

* 39 org.onosproject.route-service 1.13.3 Route Service Server

* 41 org.onosproject.hostprovider 1.13.3 Host Location Provider

* 42 org.onosproject.lldpprovider 1.13.3 LLDP Link Provider

* 43 org.onosproject.openflow 1.13.3 OpenFlow Provider Suite

* 59 org.onosproject.netcfglinksprovider 1.13.3 Network Config Link Provider

* 76 org.onosproject.mcast 1.13.3 Multicast traffic control

* 77 org.onosproject.segmentrouting 1.13.3 Segment Routing

Here is configuration of hosts -

onos> hosts

id=F8:F2:1E:35:AC:01/None, mac=F8:F2:1E:35:AC:01, locations=[of:00003c2c99ea91b7/2], vlan=None, ip(s)=[10.6.2.3], locType=none, name=-, innerVlan=None, outerTPID=vlan, provider=host:org.onosproject.netcfghost, configured=true - Host-2 - Leaf-2

id=F8:F2:1E:35:AC:71/None, mac=F8:F2:1E:35:AC:71, locations=[of:00003c2c99ea91b7/1], vlan=None, ip(s)=[10.6.1.2], gridX=null, gridY=null, latitude=null, locType=none, longitude=null, name=-, innerVlan=None, outerTPID=vlan, provider=host:org.onosproject.netcfghost, configured=true - Host-3 - Leaf-2

id=F8:F2:1E:35:AF:11/None, mac=F8:F2:1E:35:AF:11, locations=[of:00003c2c99ea8b1d/1], vlan=None, ip(s)=[10.6.1.1], locType=none, name=-, innerVlan=None, outerTPID=vlan, provider=host:org.onosproject.netcfghost, configured=true ===> Host-1 - Leaf-1

List of devices:

onos> devices

id=of:00003c2c99ea8b1d, available=true, local-status=connected 30m13s ago, role=MASTER, type=SWITCH, mfr=Accton Corp., hw=x86-64-accton-as6812-32x-r0, sw=ofdpa 3.0.5.5+accton2.3-1, serial=681232X1826021, chassis=3c2c99ea8b1d, driver=accton-ofdpa3, channelId=10.209.173.72:55386, locType=none, managementAddress=10.209.173.72, name=Leaf-1, protocol=OF_13

id=of:00003c2c99ea8b9f, available=true, local-status=connected 30m13s ago, role=MASTER, type=SWITCH, mfr=Accton Corp., hw=x86-64-accton-as6812-32x-r0, sw=ofdpa 3.0.5.5+accton2.3-1, serial=681232X1826022, chassis=3c2c99ea8b9f, driver=accton-ofdpa3, channelId=10.209.173.71:36570, locType=none, managementAddress=10.209.173.71, name=Spine-1, protocol=OF_13

id=of:00003c2c99ea91b7, available=true, local-status=connected 30m12s ago, role=MASTER, type=SWITCH, mfr=Accton Corp., hw=x86-64-accton-as6812-32x-r0, sw=ofdpa 3.0.5.5+accton2.3-1, serial=681232X1826034, chassis=3c2c99ea91b7, driver=accton-ofdpa3, channelId=10.209.173.73:41348, locType=none, managementAddress=10.209.173.73, name=Leaf-2, protocol=OF_13

ONOS configuration -

onos> netcfg

{

"devices" : {

"of:00003c2c99ea8b1d" : {

"basic" : {

"name" : "Leaf-1"

},

"segmentrouting" : {

"name" : "Leaf-R1",

"ipv4NodeSid" : 101,

"ipv4Loopback" : "10.209.173.72",

"routerMac" : "3c:2c:99:ea:8b:1d",

"isEdgeRouter" : true,

"adjacencySids" : [ ]

}

},

"of:00003c2c99ea8b9f" : {

"basic" : {

"name" : "Spine-1"

},

"segmentrouting" : {

"name" : "Spine-R1",

"ipv4NodeSid" : 201,

"ipv4Loopback" : "10.209.173.71",

"routerMac" : "3c:2c:99:ea:8b:9f",

"isEdgeRouter" : false,

"adjacencySids" : [ ]

}

},

"of:00003c2c99ea91b7" : {

"segmentrouting" : {

"name" : "Leaf-R2",

"ipv4NodeSid" : 102,

"ipv4Loopback" : "10.209.173.73",

"routerMac" : "3c:2c:99:ea:91:b7",

"isEdgeRouter" : true,

"adjacencySids" : [ ]

},

"basic" : {

"name" : "Leaf-2"

}

},

"layouts" : { },

"apps" : {

"org.onosproject.provider.lldp" : {

"suppression" : {

"deviceTypes" : [ "ROADM", "OTN", "FIBER_SWITCH", "OPTICAL_AMPLIFIER" ],

"annotation" : "{\"no-lldp\":null}"

}

},

"ports" : {

"of:00003c2c99ea91b7/2" : {

"interfaces" : [ {

"ips" : [ "10.6.2.254/24" ],

"vlan-untagged" : 20,

"mac" : "3C:2C:99:EA:91:B7"

} ]

},

"of:00003c2c99ea8b1d/1" : {

"interfaces" : [ {

"ips" : [ "10.6.1.254/24" ],

"vlan-untagged" : 10,

"mac" : "3C:2C:99:EA:8B:1D"

} ]

},

"of:00003c2c99ea91b7/1" : {

"interfaces" : [ {

"ips" : [ "10.6.1.254/24" ],

"vlan-untagged" : 10,

"mac" : "3C:2C:99:EA:91:B7"

} ]

}

},

"links" : { },

"regions" : { },

"hosts" : {

"F8:F2:1E:35:AC:71/None" : {

"basic" : {

"ips" : [ "10.6.1.2" ],

"locations" : [ "of:00003c2c99ea91b7/1" ]

}

},

"F8:F2:1E:35:AC:01/None" : {

"basic" : {

"ips" : [ "10.6.2.3" ],

"locations" : [ "of:00003c2c99ea91b7/2" ]

}

},

"F8:F2:1E:35:AF:11/None" : {

"basic" : {

"ips" : [ "10.6.1.1" ],

"locations" : [ "of:00003c2c99ea8b1d/1" ]

}

Logs messages -

PROBLEM DESCRIPTION:

I am not able to ping between host-1 and Host-2

I am able to ping between host-2 and host-3 - in the same Leaf-2

Logs when the ping fail is -

"No Matching Batch for this error xid =0"

Not sure why this is happening

Need Help.

ROUTING TABLE IN HOSTS:

I have a default route point to the management interface and another specifc route to interface gateway of 10.6.1.254 - for leaf-1 GW.

Please help.

Charles Chan

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Aug 14, 2019, 7:00:03 PM8/14/19

to ONOS Discuss, badr...@gmail.com, trellis-dev

(+trellis-dev)

Hi,

I believe it is caused by subnet misconfiguration. Trellis doesn't allow one subnet to span across multiple leaves (with an only exception when these two leaves are paired).
For example, 10.6.1.254/24 is configured on both switches.

Thanks,
Charles

badr...@gmail.com

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Aug 15, 2019, 12:34:59 PM8/15/19

to ONOS Discuss, badr...@gmail.com, trell...@opennetworking.org

Hi Charles,

Thanks for that confirmation.

One question what is the impact of this error message -

Logs messages -

Thanks

Charles Chan

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Aug 15, 2019, 7:01:23 PM8/15/19

to badr...@gmail.com, ONOS Discuss, trellis-dev

I suspect that is due to the conflict between lldpprovider and netcfglinkprovider - you can have one at a time. You can try to remove netcfglinkprovider and see if the issue persists. There should be some other log (near this one) that provides more details. A full karaf.log will help.

Thanks,

Charles Chan, Ph.D.

Member of Technical Staff, Open Networking Foundation

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