Dear Sir,

(We made some edits from our previous mail.)

We are testing a simple SFC in OpenStack (Stein) + OpenDaylight (Neon) + Open vSwitch (v2.11.1). It's an all-in-one deployment (OPNFV-9.0.0).

We have read the document:

https://readthedocs.org/projects/odl-sfc/downloads/pdf/latest/

and

https://github.com/opnfv/sfc/blob/master/docs/release/scenarios/os-odl-sfc-noha/scenario.description.rst

The driver we use is odl_v2:

image.png

image.png


Our SFC topology:

enter image description here

All on the same compute node.

Build SFC through API:

  1. openstack sfc flow classifier create --source-ip-prefix 10.20.0.0/24 --logical-source-port p0 FC1

  2. openstack sfc port pair create --description "Firewall SF instance 1" --ingress p1 --egress p1 --service-function-parameters correlation=None PP1

  3. openstack sfc port pair group create --port-pair PP1 PPG1

  4. openstack sfc port chain create --port-pair-group PPG1 --flow-classifier FC1 --chain-parameters correlation=nsh PC1

we expect that the encapsulation/decapsulation will be performed by the back-end driver, so that the data packet passes through the nsh-unaware VNF like a regular data packet. 
However, we can see that the NSH packet reaches the VNF interface (screenshot attached).
123.jpg
Flow table:

螢幕擷取畫面 2021-02-06 153311.png

It seems NSH header not decapsulate before entering NSH-unaware VNF.

Could you give us some advice?

We really appreciate it.

Regards,
Zack


Sender notified by
Mailtrack 03/13/21, 12:07:12 PM