Delivering E2E Network Slice Orchestration and SLA in Open RAN
Open RAN and 5G: Benefits and overcoming key challenges
Network slicing improves operational efficiency, optimization, and reliability for delivery of 5G network services. Here, Juniper’s Constantine Polychronopoulos discusses network slicing and SLAs, and why it’s important for the entire network community to work together to accelerate the adoption of Open RAN.
You’ll learn
The key considerations for implementing SMO/RIC for service providers and enterprises
How to deliver E2E slicing and orchestration across RAN, core, and transport domains
How service providers and vendors can work together to ensure Open RAN success
Who is this for?
Host
Transcript
00:06 good day
00:07 i'm constant police vice president at
00:10 juniper networks responsible for 5g
00:14 products and technology and thank you
00:16 for attending our session on delivering
00:18 end-to-end network slice orchestration
00:20 and sla
00:22 in an oren
00:23 open-run ecosystem
00:26 as we consider operand thankfully operan
00:29 appears to be a one-way avenue but we're
00:32 still at the very early stages of
00:34 adoption
00:35 and therefore there is a lot uh to be
00:37 done by our community to make sure that
00:40 oran proves to be a success
00:43 delivering the promise of 5g
00:45 so key tenants of success obviously
00:48 include
00:50 open ecosystem here we have to work as a
00:52 community to enable portability
00:54 interoperability across all oren
00:57 components both on the net network uh
01:00 uh stack as well as on the
01:03 rig and the x apps are apps that make up
01:06 the oren architecture
01:09 new business models the efficacy of new
01:12 revenue generating
01:14 business models that are enabled by oren
01:17 is important for operators to accelerate
01:20 adoption and again as a community of
01:23 innovators vendors
01:25 customers
01:26 we need to
01:28 demonstrate the ability to offer new
01:31 levels of optimization of spectral
01:33 efficiency
01:35 the ability to
01:37 optimize energy consumption and of
01:40 course the
01:41 capability of enabling new business
01:43 models that generate revenue as well as
01:46 reduce
01:47 costs for operators both on the capex
01:50 side but predominantly on the opex side
01:53 through automation and automation is key
01:56 is key not only because of the new
01:57 complexities that
01:59 are introduced by oren we now have
02:02 essentially the radio intelligent
02:04 component
02:05 uh
02:06 functioning as an operating system of
02:08 the radio enabling the provisioning of
02:11 new applications that address everything
02:13 that i mentioned right spectral
02:14 efficiency energy consumption
02:17 new business models
02:19 uh new optimization techniques including
02:23 some type of optimization
02:25 so being able to address simplicity
02:28 life cycle management operational
02:30 simplicity visibility through
02:33 automation and control are going to be
02:36 key tenants in the success of warren
02:40 if we take a look at where we are today
02:43 with uh essentially monolithic mobile
02:45 networks up until now
02:48 and where we want to uh
02:50 to be uh to deliver the promise of 5g
02:53 um
02:54 where unlike
02:56 monolithic networks that look at all
02:58 devices all use cases all customers
03:02 as the same we need to deliver
03:05 device-specific user-specific
03:07 use-case-specific
03:09 service level agreement and quality of
03:11 service
03:12 full segmentation of and security higher
03:16 valuability in its use case
03:19 through a common infrastructure
03:22 and through the enablement of end-to-end
03:24 network slicing whereby a network slice
03:28 addresses specific use cases with strong
03:30 sla attached
03:32 to its network slice which is
03:34 essentially fully virtualized networking
03:37 including
03:38 the applications that make up the
03:40 network slice
03:41 so let's take a look at
03:44 um the key uh challenges that we face
03:49 in
03:49 not just in the world of warren but
03:52 overall in delivering the end-to-end
03:54 network slice a key
03:56 tenant tenant again
03:58 uh for delivering the promise the full
04:00 promise of 5g
04:02 first of all it's a scale
04:05 we are faced with unprecedented
04:08 requirements on delivering
04:10 scalability across immense
04:12 infrastructure that includes thousands
04:15 of access points potentially thousands
04:17 of edge clouds uh hundreds of regional
04:20 clouds and national clouds as well as uh
04:24 hyper clouds including
04:26 uh the use of public clouds
04:29 a strict sla delivered in an overlay
04:32 fashion in overlay networks right in
04:34 virtual networking uh with quality of
04:37 service guaranteed
04:39 high availability guaranteed and
04:42 everything being software driven
04:44 enabling
04:46 the provisioning of new
04:48 optimization techniques new business
04:50 models on demand
04:52 end-to-end segmentation and security are
04:55 critical especially given that we're
04:57 talking now about the
04:59 notion of multi-tenancy at the level of
05:02 virtual networking whereby
05:06 crossing
05:07 between
05:08 different
05:10 slices
05:11 is a possibility a real possibility
05:14 and we need to guarantee that each slice
05:17 is fully segmented fully secured and in
05:20 some of the critical use cases
05:22 availability can reach the six nines
05:25 some that we have not really demonstrate
05:27 that scale yet in the world of 5g
05:30 and finally of course the promise of
05:33 network slice marketplace whereby you
05:35 can order a slice or you can subscribe
05:38 to an existing slice on demand
05:40 again a new capability in mobile
05:44 networks
05:45 as we move to the full adoption of 5g so
05:48 these are the key
05:50 uh
05:52 obstacles or the key challenges i should
05:54 say many of them have been addressed by
05:57 innovative uh new solutions and let me
06:00 talk about the approach we're taking
06:02 here to address them to a network slice
06:04 from the orchestration point of view
06:06 whereby
06:08 a slice essentially can be as simple as
06:10 the use as a service chain or as complex
06:13 as a full-fledged operator and mvno and
06:16 at the bottom we have the abstraction of
06:18 the infrastructure which includes
06:20 uh the private clouds
06:22 thousands of edge clouds regional clouds
06:25 national data centers as well as the
06:28 hyperscalers the public clouds right so
06:31 as we onboard such complex use cases in
06:34 a highly distributed complex multi-cloud
06:38 multi-domain infrastructure
06:40 the again the issue of simplicity of
06:43 management life cycle management
06:45 provisioning visibility is key to the
06:49 design it's key to the requirement right
06:51 so
06:52 an operator a service provider
06:54 can onboard an nvno
06:56 and then vienno now has the requirement
06:59 of provisioning their own slices right
07:01 so we need to support that
07:03 use case
07:04 in a way that
07:06 even though the uh provisioning again
07:10 anchors at the service provider level
07:13 the management the visibility is fully
07:16 contained within the tenant within the
07:19 mvno which
07:21 introduces new complexities
07:23 to the service management and
07:25 orchestration especially as
07:28 we talk about end to end
07:32 so the tenant has
07:34 seemingly full control of provisioning
07:38 managing
07:39 the life cycle of their slices
07:42 yet the provider needs to at all times
07:45 support the sla attached to that tenant
07:49 and uh
07:51 we support again from the smo point of
07:53 view
07:54 a tenant manager
07:56 uh as well as a service provider manager
08:00 so a service provider can have multiple
08:03 tenants
08:04 operating simultaneously on one shared
08:06 infrastructure
08:10 a key part of the success for delivering
08:13 end-to-end network slides with strong
08:15 sla attached
08:17 is to design the smo around the three
08:21 semantic domains
08:23 and the three semantic domains are the
08:25 accesses the run
08:27 adopting the oren architecture the
08:29 transport and the core
08:32 so
08:33 if we look at the transport it's not
08:35 just the one transport we have transport
08:38 within the oren architecture the mid
08:40 hall for example the black hole
08:42 right so
08:43 these are three semantic domains that
08:46 have multiple incarnations in a highly
08:49 distributed infrastructure
08:51 so the end-to-end service orchestration
08:53 has to account for dynamic onboarding
08:57 provisioning such complex use cases with
09:00 multiple transport domains multiple
09:02 round domains multiple core domains
09:04 potentially across a highly distributed
09:07 multi-cloud environment that's the end
09:09 goal
09:10 and stretching the sla across these
09:14 three semantic domains
09:16 and their
09:17 multiple incarnations in a way that
09:19 consistently delivers the sla
09:22 is one of the largest
09:25 challenges that we face
09:27 so
09:28 at juniper for example
09:31 we have already enabled our transport
09:34 to support end-to-end guaranteed sla on
09:38 mult multiple tenants
09:39 and we use similar technology to enable
09:42 um
09:43 end-to-end network slicing in the mid
09:45 hall
09:47 as well as
09:48 across the core where the key
09:52 functions of the core can be either
09:54 shared or can be individually
09:58 allocated to specific tenants so they
10:00 can be private or shared and delivering
10:04 the sla across
10:05 such disparate
10:07 complex use cases in a consistent way
10:10 is
10:11 a key objective of of the design to our
10:14 following
10:16 uh going back to the orange and the need
10:18 to support the success of oren
10:21 as a community there's no question we
10:23 need to address
10:24 uh the open ecosystem to commit to
10:27 interoperability
10:28 and
10:30 to uh testing platforms that allow us to
10:33 demonstrate interoperability
10:36 uh and from
10:37 that to derive to agree upon on use
10:40 cases that address network efficiencies
10:43 network optimization
10:45 energy efficiency and new use cases that
10:49 drive revenue
10:51 as a community and that will drive the
10:54 necessary requirements that will be
10:56 reflected in the ordinance
10:57 specifications going forward again we
11:00 are well on our way to achieving that
11:02 but more effort needs to be expanded by
11:04 the community to really accelerate
11:07 both the maturity of water and the
11:09 adoption of warren
11:11 that will get us to the point where we
11:14 will have interoperable portable x-ups
11:17 and arabs running on the radio
11:19 intelligent controller that will really
11:22 open the floodgate of new business
11:25 models
11:26 new innovative ways of achieving
11:29 spectral efficiency
11:31 and addressing
11:33 kpis for mission critical use cases
11:40 if we look at uh the approach we're
11:42 taking at juniper again we are committed
11:45 to experience first networking which is
11:47 really the north star of the company
11:50 company-wide we're focusing on
11:52 uh simplicity
11:54 and visibility
11:57 that
11:58 comes through automation
12:00 so that is key in enabling reduction of
12:03 opex right taking the
12:06 complexity down to
12:09 zero thoughts if you you know if you
12:11 wish is the end goal of course it's a
12:14 long way there but we're well on our way
12:16 to delivering that in uh end-to-end
12:18 network slice registration
12:20 uh multi-cloud is very important to us
12:23 and i think it should be very important
12:25 the community because
12:27 operators as well as enterprises because
12:30 we're talking about both private and
12:32 public
12:34 5g
12:35 will
12:36 need to have the flexibility of
12:38 leveraging
12:40 the
12:41 public clouds the simplicity and the
12:45 speed at which we can enable new use
12:47 cases leveraging public clouds at the
12:50 same time
12:51 operators
12:53 will need to have the ability to
12:55 leverage or build out their own private
12:57 clouds right so
12:59 having a
13:01 smo
13:03 that supports
13:04 multi-cloud environments public and
13:06 private clouds and the delivery the
13:09 provisioning of such complex use cases
13:12 through network slicing across multi
13:14 clouds is is a is a key requirement uh
13:17 for the approach we're taking and i
13:18 believe for the approach the community
13:20 needs to take
13:21 intelligent automation
13:24 and optimization again delivered
13:26 primarily through the radio intelligence
13:28 controller
13:30 is the new opportunity that open iran
13:32 brings to the market and multi-tenancy
13:35 is absolutely a key requirement uh
13:40 multi-tenancy at a new level that has
13:42 not been
13:44 realized up until now again
13:46 that addresses regional slices addresses
13:50 uh national slices very complex use
13:53 cases all of them coexisting on one
13:56 shared infrastructure
13:58 and
14:00 that takes us to the multi-access right
14:02 network slicing
14:04 that can support use cases
14:07 that can be mission critical or simply
14:10 enhanced mobile
14:12 broadband
14:14 will need to be supported across
14:15 different access
14:17 media not just 5g but 4g wi-fi wireline
14:21 so these are very important requirements
14:24 in
14:25 delivering
14:26 simplest sim simple
14:29 seamless way of onboarding provisioning
14:32 and managing network slices in an
14:34 end-to-end fashion
14:36 and with that i will conclude the
14:38 presentation and thank you very much for
14:40 attending
14:49 you