Irene Zhang, Director, Product Marketing, Juniper Networks

What's the Difference Between Cloud Metro vs. Traditional Metro?

Ask Me Anything Cloud Metro
Irene Zhang Headshot
A head shot of Amit Bhardwaj, Sr. Director, Product Management, Juniper Networks, in front of trees and an office building. Text to the right of the photo says "Ask Me Anything. What's the Difference Between Cloud Metro vs. Traditional Metro?"

Cloud vs. traditional metro

As part of the series, this video specifically answers the question of “What's the difference between Cloud Metro vs. traditional metro?” 

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You’ll learn

  • How Cloud Metro architecture requires new network capacities

  • New protocols including EVPN and segment routing

  • How Junos supports both traditional and next-gen protocols

Who is this for?

Network Professionals Business Leaders


Irene Zhang Headshot
Irene Zhang
Director, Product Marketing, Juniper Networks

Guest speakers

Amit Bhardwaj Headshot
Amit Bhardwaj
Sr. Director, Product Management, Juniper Networks



00:04 Welcome to Juniper Cloud Metro AMA series, where we have

00:07 experts to answer your questions, any questions related

00:11 to next-gen Metro networks. I'm your host, Irene Zhang, Director

00:15 of Product Marketing at Juniper. Joining me today is Amit

00:18 Bhardwaj, Senior Director of Product Line Management at

00:21 Juniper. Amit, welcome. Today we have another question, what's

00:27 the difference between Cloud Metro versus traditional Metro?

00:31 So let's start with three big pieces, right? One, as you move

00:37 to the Cloud Metro architecture, there's going to be new

00:40 capacities required in the network, new capacity means new

00:43 speeds and feeds. You know, we're talking about 10GE, 25GE

00:47 or 100GE UNI, 400GE NNI. We're going to talk about integration

00:53 of the optical with ZR and ZR+ pluggablesr into the capacity,

00:58 into the routing platforms.

01:00 We're also going to look at new protocols in this scenario with

01:04 going towards EVPN and segment routing, as well as the driving

01:09 infrastructure from a protocol perspective, while also

01:12 supporting some of the traditional protocols. Because,

01:15 you know, we're not going just Greenfield. So there will be

01:18 some Brownfield to Greenfield scenarios.

01:20 And this is where, you know, for example, Junos stack comes into

01:23 play, you know, where we are able to support both the

01:25 traditional and the next-gen protocols into the JUNOS stack.

01:29 The timing is going to become a lot more critical in the

01:31 infrastructure because of the low latency use cases. So that's

01:35 the infrastructure piece.

01:36 Now when you start to look at one layer above, from

01:38 intelligence standpoint, you're looking at this network

01:41 architecture, where the traffic needs to be steered, wherever

01:45 the service is being delivered.

01:46 The service might be delivered at the cell site, one hop from

01:49 the cell site, or maybe two hops from the cell site. And these

01:52 workloads, you know, might move within the metro locations. So

01:57 the intelligence in the IP fabric, to have this capability

02:01 to steer the traffic wherever the services being delivered is

02:04 going to be critical.

02:05 Now, as you start to converge all the different use cases into

02:09 the common infrastructure.

02:12 That converge network requires a certain set of requirements in

02:16 the automation layer. Because underneath, you can use the same

02:19 protocols for delivering your broadband services, building

02:22 your 5G infrastructure, or you know, even doing things like,

02:27 separation of control plane user plane for certain applications,

02:31 driving the traffic to different workloads.

02:34 But as you drive all these use cases, now, how do we manage the

02:37 network infrastructure? And this is where network slicing comes

02:41 into the play. Because network slicing basically is a

02:44 technology that we use some of the VPN for the overlays, and

02:51 segment routing, or MPLS, for the underlay from a technology

02:54 standpoint.

02:55 On top of that we look at the quality of service attributes

02:59 deployed to guarantee some of the SLA s for this, along with

03:02 latency in the network. But the big piece of this is like how do

03:07 you orchestrate this?

03:09 That's why automation becomes key is that, orchestrating this

03:13 workflow for network slicing, where you can set up your

03:16 network slices, you can set up your overlays on the network

03:20 slices. And then you can assure each of these network slices in

03:24 an automated fashion. And then do a closed loop automation

03:27 around that. This is the automation infrastructure that's

03:30 going to be required to migrate towards the Cloud Metro

03:35 architecture.

03:36 So let me just summarize this thing again, right, new

03:39 capacities and architectures, you know, intelligence in the

03:43 network fabric, and the automation, you know, to drive

03:47 the all the use cases on a converged network, basically. So

03:52 that's just you know, how this is going to happen in the

03:57 service provider space.

04:01 What else do you want to learn about the next generation Metro

04:03 networks? Send us your question by email at

04:07 And join us at our monthly live AMA

04:11 session. You can find a date and registration link at the

04:16 description box below. See you next time.

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