Date post: | 21-Jan-2018 |
Category: |
Technology |
Upload: | michelle-holley |
View: | 279 times |
Download: | 0 times |
Security Level:
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Service Function Chaining in Openstack Neutron
Farhad Sunavala Principal Engineer, Huawei
2
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Agenda
1. Service Chaining – What, why, use cases, architecture, etc. 2. Openstack Neutron networking-sfc
• Architecture • Configuration Model • CLI • Flows • Use Cases • Related projects • Final Thoughts
3. Q & A
3
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Service Chain What ?
All SFC documents - https://datatracker.ietf.org/wg/sfc/documents/
Problem Statement for Service Function Chaining - https://datatracker.ietf.org/doc/rfc7498/
4
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Service Chain Why ? (Use Cases)
https://datatracker.ietf.org/wg/sfc/documents/ Mobile Networks, Mobile Network Gi LAN, Fixed Broadband, Data Centers, vCPE (E.g. ATT’s uCPE - Universal Customer Premises Equipment)
5
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
SFC – Traditional Way using PNFs (HW Boxes)
SFC – Subscriber Based SFC using VNFs
6
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
SFC Architecture RFC 7665
7
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Openstack Neutron networking-sfc Documentation
https://wiki.openstack.org/wiki/Neutron/ServiceInsertionAndChaining https://docs.openstack.org/networking-sfc/latest/
Initial release
First stable release, bug fixes, minor API changes,
sfc commands changed to openstackclient, symmetric chain parameter in API, OVS SFC agent as L2 agent extension,
symmetric port-chains, port-pair support for correlation=mpls
8
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Openstack Neutron SFC Architecture
9
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Service Chain Configuration Model
10
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Service Chain Objects
11
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Service Chain CLI
port pair (ingress and egress neutron ports of VNF) openstack sfc port pair create –ingress <ingress> --egress <egress> <pp1-name> openstack sfc port pair create –ingress >ingress> --egress <egress> <pp2-name>
port pair group (load-balancer for like VNFs)
openstack sfc port pair group create –port-pair <pp1-name> --port-pair <pp2-name> <ppg-name> flow classifier (classifier details)
openstack sfc flow classifier create –source-ip-prefix <source-ip-prefix> --destination-ip-prefix <destination-ip-prefix> <fc-name> port chain
openstack sfc port chain create –flow-classifier <fc-name> --port-pair-group <ppg-name> <pc-name>
port-pair consists of neutron port for ingress and egress. Hence, any entity (Virtual or Physical) which can be described by a neutron port, can be easily inserted or removed from the service chain.
12
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
networking-sfc Flows
src
sf
sf2 dst
10.0.0.3 10.0.0.4
10.0.0.10
10.0.0.6
root@fs-10-145-105-66:~/configs# ovs-ofctl dump-flows -O OpenFlow13 br-int table=0 cookie=0xb524b28024063844, duration=10.116s, table=0, n_packets=0, n_bytes=0, priority=30,icmp,in_port=8,nw_src=10.0.0.4,nw_dst=10.0.0.3 actions=group:1
Classify
Loadbalance root@fs-10-145-105-66:~/configs# ovs-ofctl dump-groups -O OpenFlow13 br-int group_id=1,type=select,bucket=actions=set_field:fa:16:3e:75:cb:ad->eth_dst,resubmit(,5),bucket=actions=set_field:fa:16:3e:07:f3:5f->eth_dst,resubmit(,5)
Tag root@fs-10-145-105-66:~/configs# ovs-ofctl dump-flows -O OpenFlow13 br-int table=5 cookie=0xb524b28024063844, duration=781.070s, table=5, n_packets=0, n_bytes=0, priority=0,ip,dl_dst=fa:16:3e:75:cb:ad actions=push_mpls:0x8847,
set_field:511->mpls_label,set_mpls_ttl(255),push_vlan:0x8100,set_field:4097->vlan_vid,resubmit(,10) cookie=0xb524b28024063844, duration=781.065s, table=5, n_packets=0, n_bytes=0, priority=0,ip,dl_dst=fa:16:3e:07:f3:5f actions=push_mpls:0x8847,
set_field:511->mpls_label,set_mpls_ttl(255),push_vlan:0x8100,set_field:4097->vlan_vid,resubmit(,10)
13
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Use cases - networking-sfc Simplest case - Same tenant
src1
VNF11
VNF13
VNF12
VNF21
VNF22
VNF31
VNF32
VNF34
VNF33 dst
classify + loadbalance + tag
untag + classify + loadbalance + tag
untag + Normal forwarding
src2
untag + classify + loadbalance + tag
14
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Use cases - networking-sfc Different tenants –no problem, use RBACs (role based access control)
src1
VNF11
VNF13
VNF12
VNF21
VNF22
VNF31
VNF32
VNF34
VNF33
dst
Classification + loadbalancing
Classification + loadbalancing Classification +
loadbalancing Normal forwarding
src2
Shared network
15
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Use cases - networking-sfc VNF containers - No problem, use kuryr
src1
VNF11
VNF13
VNF12
VNF21
VNF22
VNF31
VNF32
VNF34
VNF33 dst
Classification + loadbalancing
Classification + loadbalancing
Classification + loadbalancing
Normal forwarding
src2
Containers orchestrated by Docker Swarm / k8s, networked using kuryr
16
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Use cases - networking-sfc Nested containers in a VM – no problem, use VLAN aware VMs
br-tun br-tun
VM2
patch-int
patch-tun
br-trunk
Bridge
C1 10.0.0.9/24
C2 10.0.0.3/24
C3 10.0.1.4/24
vl100 vl200 vl300
trunk
Vl100,vl200,vl300
vl1
10.0.0.100/24 10.0.0.4
vl1
vl100
vl200
vl300
vl1
vl1
vl1
vl4
br-int br-int
patch-tun
patch-int
VM3
10.0.0.101/24
vl1
vl1
vl1
vl4
17
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Use cases - networking-sfc Multiple Openstack implementations / site licensing – no problem, use Openstack TriCircle
https://wiki.openstack.org/wiki/Tricircle
18
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Use cases - networking-sfc
Use neutron provided services like FWaaS, LBaaS, VPNaaS as VNFs in the service chain. Integrate PNFs (Physical Network Functions) with VNFs as part of a service chain using L2GW. Support for Service Graphs branching and reclassification.
19
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
networking-sfc related projects 1. ONOS SDN Controller with networking-sfc integration
https://wiki.onosproject.org/pages/viewpage.action?pageId=4163192 https://docs.openstack.org/networking-onos/latest/devref/sfc_driver.html 2. ODL SDN Controller with networking-sfc integration
https://wiki.opendaylight.org/images/3/37/OpenDaylight-Summit-2016-OpenStack-SFC-Support.pdf https://docs.openstack.org/networking-odl/ocata/specs/sfc-driver.html 3. Networking-sfc / OVN Driver https://docs.openstack.org/networking-sfc/latest/contributor/sfc_ovn_driver.html https://www.youtube.com/watch?v=PUZzhRxc6iA 4. Tacker with networking-sfc integration.
https://specs.openstack.org/openstack/tacker-specs/specs/newton/tacker-networking-sfc.html
20
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Final thoughts
networking-sfc uses MPLS tags for chaining due to lack of NSH support in openvswitch. Openvswitch 2.8.0 (released August 31st 2017) has experimental NSH support. http://openvswitch.org/releases/NEWS-2.8.0
• Experimental NSH (Network Service Header) support in userspace datapath. • Used generic encap and decap actions to implement encapsulation and decapsulation of NSH header. • IETF NSH draft - https://datatracker.ietf.org/doc/draft-ietf-sfc-nsh/
As networking-sfc and releated projects provide full NSH support now, support for service-aware functions will hopefully become more commonplace.
21
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.
Questions
???
Copyright©2016 Huawei Technologies Co., Ltd. All Rights Reserved. The information in this document may contain predictive statements including, without limitation, statements regarding the future financial and operating results, future product portfolio, new technology, etc. There are a number of factors that could cause actual results and developments to differ materially from those expressed or implied in the predictive statements. Therefore, such information is provided for reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice.
Thank You.
Slide title: 36-40pt Slide subtitle: 24pt Copy text: 20-32pt
Color: black Corporate Font: Arial
Top right corner for field-mark, customer or partner logotypes.
• The ten standard colors below are allowed.
• The colors should be used to be consistent with the structure and understanding of the content along the whole presentation.
• Do not use more and different colors in single slide.