Ethernet
Aggregation
using PBB andPBB-TE for
MPLS networks
Peter Lunk
Director, Service Provider Marketing
October 2007

© 2007 Extreme Networks, Inc. All rights reserved.

1

High

MultiDimensional
Ethernet

Layer 2MPLS

Layer 3 MPLSPBB-TE

T-MPLSPBB-TE
Low

Service Capabilities

Service Delivery Evolution

Traditional
Ethernet

CircuitSwitching

Low

High

Network Economics
Page 2© 2007 Extreme Networks, Inc. All rights reserved.

2

Using PBB & PBB-TE in an MPLS Network
Scales beyond 4096 VLANs
Preservation of VLAN inner and outer tags
QoS mapped from customer inner .1p tag to metro outer tag and
MPLS EXP bits

MPLS Core

Customer
Edge (VLAN)

Page 3PBB or PBB-TE
Encapsulation

MPLS CorePBB or PBB-TE
Encapsulation

Customer
Edge (VLAN)© 2007 Extreme Networks, Inc. All rights reserved.

3

Two Paths to Ethernet Transport
Ethernet PBB Path
Automatic
Ethernet Control
Plane handles
network configuration
on its own

Ethernet
Transport

SimpleStandard Ethernet
concepts are easy to
manage even forlarge networks

Circuit Switched PBB-TE Path
Deterministic
With nailed-up circuits
and complete traffic
control

Page 4Familiar
Maintains current
operational model andavoids complicated
MPLS transport

Bestnetwork
economics
Scales tomillions ofservices
Providesnetwork
resiliency© 2007 Extreme Networks, Inc. All rights reserved.

4

Recent Ethernet Technology Enhancements
Provider Backbone Bridges – Traffic Engineering
MAC-in-MAC

Ethernet OAM

Ethernet NNI(802.1ah)(802.1ag)(MEF E-NNI)

Providesmassivescalability

End-to-end
resiliency withcontinuity checks

Extends service
reach acrossproviderboundaries

Deterministic, Resilient and Familiar

Page 5© 2007 Extreme Networks, Inc. All rights reserved.

5

Provider Backbone Bridging
Eliminates address space scalability issue
Solves MAC table size issue
Works in conjunction with 802.1ad (Q in Q)

Customer
Edge (VLAN)

Page 6

Q in Q
Encapsulation

Provider Backbone
Bridge (MAC in MAC)

Q in Q
Encapsulation

Customer
Edge (VLAN)© 2007 Extreme Networks, Inc. All rights reserved.

6Ethernet OAM for End-to-End Resiliency
Customer

Service
Provider 1

Service Provider 2ServiceProvider 1

Customer

Provider 2 Core
Network

Continuity Check Messages

Provider Domain

Continuity Check Messages

Operator
DomainPage 7

Operator
DomainOperatorDomain© 2007 Extreme Networks, Inc. All rights reserved.

7

Ethernet NNI to Extend Service Reach
Allows peering between provider Ethernet services
Increases carrier reach with Ethernet service extension to off-netsites
Uses a combination of technologies• Link Aggregation• VLAN C-VID/S-VID translation
MEF Standard expected this year
E-NNI
Provider 1

Page 8Provider 2© 2007 Extreme Networks, Inc. All rights reserved.

8

Migration to PBB-TE
PBB (MAC-in-MAC) networks can be deployed todayPBB-TE traffic engineered trunks can be added later
Both can run on the same switches at the same time
PBB-TE Ready hardware

IP ServiceEdge orMPLS CoreCustomer
Site 1Page 9Provider Backbone
Bridge (MAC in MAC)PBT Tunnels

Customer
Site 2© 2007 Extreme Networks, Inc. All rights reserved.

9

Carrier Interest in Deploying PBB-TE

Yes
No
Uncertain

Source – Ray Mota, Synergy Research Group PBT and Metro Network Analysis
Page 10© 2007 Extreme Networks, Inc. All rights reserved.

10

PBB-TE Applications
Business Services• E-Line services
Wireless Backhaul• High bandwidth backhaul including WiMAX
Wholesale Services• SLA capable Ethernet connections

Page 11© 2007 Extreme Networks, Inc. All rights reserved.

11

Reasons for all the Carrier Interest
Deterministic network behaviour• Nailed-up circuits, no Ethernet learning and flooding
Resilient network designs• End to end circuit based resiliency with 50ms failover times
Familiar network operations offering lower CAPEX andOPEX• No need for new personnel with Layer 3 experienceNow for the hard question:
What’s least appealing about PBB-TE?
• 85% of carriers said that it is not yet a standard and there has
been no interoperability to date**Source – Ray Mota, Synergy Research Group PBT and Metro Network Analysis
Page 12© 2007 Extreme Networks, Inc. All rights reserved.

12

Next Generation Networking Developments
Standards

14|

2007Vendors

2520083

1. IEEE PBB-TE project is approved - now officially 802.1Qay
2. Extreme & Nortel PBB-TE interoperability demonstration
3. EANTC PBB-TE interoperability showcase
4. MEF E-NNI and Standard Solidifies – important for wholesale
5. IEEE project could reach sponsor ballot in the IEEE

Page 13© 2007 Extreme Networks, Inc. All rights reserved.

13

How to build carrier confidenceSingle vendor approach is straight forward but a realsolution will take more work
No reason to wait for the standard to complete to get theinteroperability establishedThree key results from Carrier Ethernet Geneva show:

1. Data Plane Interoperability
2. Protocol Inter-working and Interoperability
3. Control Plane Interoperability

Page 14© 2007 Extreme Networks, Inc. All rights reserved.

14

Data Plane
Interoperability© 2007 Extreme Networks, Inc. All rights reserved.

15

EANTC Demonstration Geneva
Live interoperability demonstration
Key accomplishment #1 – connectivity and interoperability of• Provider Backbone Bridging frames (IEEE 802.1ah)• Configuration Fault Management (IEEE 802.1ag)
During the event in Geneva nine vendors demonstrated trunk
establishment and data forwarding

Page 16© 2007 Extreme Networks, Inc. All rights reserved.

16

Protocol
Inter-working
andinteroperability© 2007 Extreme Networks, Inc. All rights reserved.

17

Carrier Technology Menu
Applications: Voice Video and Data, E-LAN E-Line, VPN
Regional orNational
Core

L2 VPLS

Metro Core

Metro
Aggregation
and Access

FTTB

1st Mile

Page 18

L3 MPLS

L2 VPLS

L3 MPLS

L2 VPLS

L3 MPLS

L3 MPLSCPE

ADSL &VDSLPBB-TEPBB-TE

FTTX

VMAN
PBB

VLAN
VMAN

CMTS

Wireless© 2007 Extreme Networks, Inc. All rights reserved.

18

PBB-TE Ethernet Aggregation to an MPLS CorePBB-TE Aggregationand Metro Domain

Page 19

MPLSDomain

E-NNI to OtherProviders

Provider 1
MPLS Core

Provider 2© 2007 Extreme Networks, Inc. All rights reserved.

19

Control Plane© 2007 Extreme Networks, Inc. All rights reserved.

20

Carrier Control Plane Preference
60%

55%

50%

40%40%30%

20%

10%

5%

0%

Homegrown

MutlitVendor NMS

Single Vendor
NMS

Source – Ray Mota, Synergy Research Group PBT and Metro Network Analysis
Page 21© 2007 Extreme Networks, Inc. All rights reserved.

21

Multi-Vendor Control Plane Implementations
Multi-Vendor control plane is the wise choice• Avoid vendor lock in on the hardware side• Allow dual vendor supplier strategy• Maintain flexibility in network design
The power of XML for control plane work
• Simplicity• Speed• Investment protection

Page 22© 2007 Extreme Networks, Inc. All rights reserved.

22

Control Plane Demonstration
Live interoperability demonstration at EANTC boothIndustry first demo with dynamic configuration of services
across a multi-vendor network

Soapstone PNC

PBB-TE Link

BlackDiamond
12802R

Page 23Nortel
MERS8600© 2007 Extreme Networks, Inc. All rights reserved.

23

Building a Carrier Ethernet Ecosystem
Promoting the use of PBB-TE to overcome real world challenges
with Carrier Ethernet
Demonstrating PBB-TE interoperability among vendors
Real-world scenarios with available solutions» hardware» management tools» components» test gear

Page 24© 2007 Extreme Networks, Inc. All rights reserved.

24

Carrier Ethernet Ecosystem Partners

Page 25© 2007 Extreme Networks, Inc. All rights reserved.

25

Questions?

© 2007 Extreme Networks, Inc. All rights reserved.

26

Thank You© 2007 Extreme Networks, Inc. All rights reserved.

27