BRKSPG-2684

ASR 9000: Universal Cloud Gateway 

BRKSPG-2684 

Sai Natarajan & Sudarshan Muralidharan 

ASR 9000 Marketing

Agenda 

Introduction: Cloud Opportunity & Requirements 

ASR 9000 Cloud Building Blocks 

– HW & SW Foundation 

– DCI Transport Technologies 

– Virtualized Services Infrastructure 

– Cisco ONE 

BRKSPG-2684 © 2013 Cisco and/or its affiliates. All rights reserved. 

Cisco Public

Cisco Cloud Intelligent Network 

Cloud 

Provider 

Cloud 

Provider 

Cloud 

Provider 

Regulatory 

Public 

Healthcare 

Hybrid 

Community 

Media 

Private 

Predictable Connections across clouds and to Users 


Cisco Public 

Consumer 

Business 

Government

Cloud Adoption Curve 

Adoption of cloud services 

Cloud in Cautious Stages 

• Sand box Environments – Dev / Test 

• Seasonal bursting scenarios 

• Non Business Critical applications 

Inflection 

point 

Mostly SMBs, Enterprises for 

Non Business Critical Applications 

Today 

Main Stream Enterprise 

Adoption of Cloud Services 


Cisco Public 

Cloud Goes Mainstream 

• Enterprise adoption driven by Network performance 

– Application & Performance SLAs 

– Reduce costs 

– Service assurance 

• Hosting providers and Telcos are best poised to exploit 

this paradigm shift

Cloud Data Center Traffic 

Cloud will account for two-thirds of data center traffic by 2016 

Zettabytes / Year 

7.0 

6.0 

5.0 

4.0 

3.0 

2.0 

1.0 

0.0 

Cloud Data Center 

Traditional Data Center 

39% 

61% 

2011 2012 2013 2014 2015 2016 


Cisco Public 

31% CAGR 2011–2016 

64% 

36%

Carrier Cloud Network Reference Architecture 

Customer/Clients 

Internet 

SP NGN 

SP NGN 

SP DC Enterprise DC 

WAN/DC gateway 

DC Core/Aggregation 

Top of Rack switch 

VM, Hypervisor, Storage 

Data Center 


Cisco Public

Carrier Cloud Business & Technical Requirements 

Share the physical network resource 

among as many tenants as possible 

Business agility: monetize the CAPX 

spending, fully use the available 

computing resource 

Auto Provisioning 

Differentiate cloud service from MSDC 

public cloud: leverage the customer 

VPN network footprint 

Diverse customer applications (IP, non- 

IP, non-routed) 


Cisco Public 

Network virtualization + 

high scale 

VM mobility 

IP NGN integration + 

Service SLA 

L2 adjacency

Technical Requirement – High Scale 

VMs (multi millions) 

– MAC, ARP 

Tenants (ten of thousands) 

– VPN scale (L3): VRF, FIB 

– VPN scale (L2): VLAN, bridge-domain, VPLS VSI & PWs, PBB-EVPN instances 

Physical topology scale – optimal forwarding 

– Multiple paths, ECMPs 

– Per-VLAN vs. Per-flow load balancing 

– Shortest path 


Cisco Public

Technical Requirement – VM Mobility 

POD1 POD2 

VM movement 

Requirement to eliminate physical 

boundary for VM mobility 


Cisco Public 

In classic DC design, each POD is in 

its own L3 boundary. When VM 

moves from one POD to another 

POD, it has to change its IP address 

Need solution to support VM mobility 

across PODs or even across DCs 

Potential solutions 

– L2 network across POD or DC 

sites: EVPN, FP/TRILL 

– Virtual L2 overlay across physical 

IP network: VXLAN, NV-GRE

Technical Requirement - L2 Adjacency 

Application Traffic 

(Non Routable) 

Node Discovery 

Heartbeats 

vMotion Traffic 

Hypervisor Hypervisor 

Network 

Applications in the VMs use non-routable traffic 

– e.g. Node Discovery & Heartbeats in clustered Applications 

– It is very difficult to control what applications do 

As long as applications leverage link-local multicast, LAN extensions are 

necessary 


Cisco Public

Agenda 






– Cisco ONE 


Cisco Public


HW & SW Foundation 

Highest port density 

and scalable SW 

architecture 

Virtualized Cloud 

Services 

Delivering better user 

experience at better 

economics 

Data Center 

Interconnect (DCI) 

Make many DC 

seem as one logical 

unit 

Cisco ONE 

Two way 

programmatic access 

to devices & SW 


Cisco Public 

13

Agenda 






– Cisco ONE 


Cisco Public

Bandwidth/slot 

ASR 9000 Chassis Overview 

99xx: >2Tb/Slot* 

90xx: 880Gb/Slot* 

1HCY13 

9001-S, 2RU, 60G 

9001, 2RU, 120G 

Fixed 

2HCY13 

9904, 6 RU 

2 I/O 

9006, 10RU 9010, 21RU 

4 I/O 

* Chassis capacity only, bandwidth also depends on the fabric and line cards 

8 I/O 


Cisco Public 

2HCY13 

9912, 30RU 9922, 44RU 

48Tbps 

system 

10 I/O 20 I/O 

Number of I/O slots 

15

ASR 9000 Ethernet Line Card Overview 

First-generation LC 

Trident NPU 

Second-gen LC 

Typhoon NPU 

-L, -B, -E 

-TR, -SE 

A9K-24x10GE 

A9K-40G A9K-4T A9K-8T/4 A9K-2T20G A9K-8T A9K-16T/8 

A9K-36x10GE 

A9K-2x100GE 

-L: low queue, -B: Medium queue, -E: Large queue, -TR: transport optimized, -SE: Service edge optimized 


Cisco Public 

A9K-MOD160 

A9K-MOD80 

MPAs 

20x1GE 

2x10GE 

4x10GE 

8x10GE 

1x40GE 

2x40GE

Fully Distributed OS Architecture 

Control plane split among RSP and LC CPU (same 

type of CPU as RSP) 

L2 protocols, BFD, CFM, Netflow runs on the LC 

CPU for high scale 

Line Card 

RSP 

CPU 

CPU BITS/DTI 

FIA 

FIC 


Cisco Public 

IOS-XR: True Modular, fully 

distributed OS 

Fully distributed HW resource: 

each line card has CPU just as the 

RSP 

Ultra-High multi-dimensional 

control plane scale 

Multi-dimensional scale example 

MAC address 2M, HW MAC learning 4-5Mpps, per-LC 

MAC learning (roadmap) 

L2 interfaces 128K 

P2P EoMPLS 128K 

Bridge-domain/VFI 64K 

VFI PWs 128K 

L3 interfaces/VRF 20K/8K 

FIB 4M, per-LC VRF FIB table download

Flexible EVC Architecture: Any Port Any Service 

Flexible service deployment model: 

Any L2 and any L3 service 

simultaneously supported on 

any/same physical port 

Flexible VLAN based service 

classification model: Match any 

combination of up to two VLAN tags 

Flexible VLAN tag manipulation: 

Translate VLAN as needed 

Support all standard based services: 

L2 P2P local connect and EoMPLS, 

L2 Multi-point local bridging, H-VPLS 

and VPLS, Regular L3 sub-interface, 

and Integrated L2 and L3 - IRB 

L3 Sub I/F 

L2 or L3 sub-interfaces 

(802.1a/qinq/.1ad) 


Cisco Public 

X 

X 

Routing 

Bridging 

Bridging 

VPLS 

IRB 

IRB 

EoMPLS PW 

EoMPLS PW 

EoMPLS PW 

Integrated Routing and Bridging

Scalable and Flexible L2 Foundation 

SP DC2 

VPLS/ 

EVPN 

SP DC1 


Internet 

VPLS/ 

EVPN 

Enterprise DC3 


Cisco Public 

Scalable solution 

– 64K bridge-domain/VFI, 128K PWs 

– 2M MAC address, HW MAC learning 

– VLAN-aware VPLS for high scale 

– MAC routing for future evolution 

EVPN, FP/Trill-EVPN 

Flexible solution 

– Flexible VLAN tag classification and 

manipulation: any VLAN to any VLAN 

– Flexible encapsulation : 802.1q/ qinq 

/.1ad/ .1ah 

– VPLS (both LDP and BGP signaling), 

fat-PW 

– Full Ethernet OAM 

– MPLS/VPLS fast convergence

Scalable and Flexible L3 Foundation 

DC2 

L3/L3VPN/MPLS 

for inter-DC 

L3/MPLS 


Internet 

DC1 

L3/MPLS 

DC3 

L2 or L3 intra-DC 

design 

Scalable solution 

– Ultra-High dense 10GE/100GE: up to 

720 10GE per system 

– 4M FIB, selective per-LC download 

– 20K L3 user interface, 8K VRF 

– Super high TE Mid point scale: 100k+ 

TE mid points 


– Rich & mature IOS-XR BGP feature set 

– Rich & mature IOS-XR RSVP-TE 

feature set: auto-bandwidth, autobackup, 

50msec TE/FRR 

– Fast IGP and BGP convergence: BGP 

PIC, IP/FRR 

– Flexible user CLI: configuration 

template, apply group 


Cisco Public

Agenda 






– Cisco ONE 


Cisco Public

Cloud Solution Challenges 

Aggregation 

ToR 

VM, SW, 

Storage 

DC 

WAN/DCI 

DC Core 

VPLS/OTV 

POD1 POD2 

DC 


Cisco Public 

L3/L3VPN 

L2/L3 boundary 

L2 

L2 LAN extension 

Scale Challenge 

– Millions of VMs: MAC, ARP 

– 10,000+ tenants: VPLS VSI 

– 10-100 sites: VPLS PWs 

Efficient load balancing: Perflow 

v/s per-VLAN ECMP 

Network High Availability: Fast 

convergence at sub-second to 

50ms

Cisco Virtualized Multi-tenant Data Center Architecture 

DC 

VPLS 

DC 

DC 

ASR 9000 

Nexus 


Cisco Public 

Validated reference architecture 

that includes Nexus in Unified DC 

and ASR9K as DCI & the bridge 

to Nexus DC 

Reduced time to deployment 

Reduced risk 

Increased flexibility 

Improved operational efficiency 

http://www.cisco.com/en/US/solutions/ns340/ns414/ns742/ns743/ns749/landing_dci_mpls.html

ASR 9000 DCI Solution - VPLS 

vPC+MC-LAG: 

Simple VPLS multi-homing, 

fast convergence 

vPC 

DC1 

MC-LAG 

standby links 

MC-LAG 

active links 

ICCP 

VFI 

VFI 

DC3 

VFI VFI 

IP/MPLS 


Cisco Public 

VFI 

VFI 

Simple VPLS multi-homing 

Mature, proven, Cisco “CVD” solution 

ICCP 

DC2 

vPC 

24

VPLS + MC-LAG Configuration 

VPLS MC-LAG 

l2vpn 

pw-class vpls-pw-class 

encapsulation mpls 

! 

bridge group group1 

bridge-domain vlan200 

interface Bundle-Ether10.200 

! 

vfi vfi200 

neighbor 50.1.1.1 pw-id 200 


! 



redundancy 

iccp 

group 10 

mlacp node 1 

mlacp system mac 0000.0000.0010 

mlacp system priority 1 

mlacp connect timeout 0 

member 

neighbor 50.1.1.1 

! 

backbone 

interface TenGigE0/0/2/0 


! 


Cisco Public 

interface Bundle-Ether10 

mtu 9216 

lacp switchover suppress-flaps 100 

mlacp iccp-group 10 

mlacp switchover type revertive 

mlacp switchover recovery-delay 40 


l2transport 

encapsulation dot1q 200 

rewrite ingress tag pop 1 symmetric 


bundle id 10 mode active 

lacp period short 

! 

25

ASR 9000 DCI Solution – LACP Tunneling 

vPC 

LACP tunneling 

LACP tunneling 

Active/active vPC 

or VSS MC-port 

channel 

VSS 

Si Si 

DC site 1 DC site 2 


Cisco Public 

Simple configuration, 

active/active load balancing. 

Transparent over PE and 

MPLS cloud. Only apply to two 

DC sites inter-connect 

Port-mode EoMPLS, tunnel all 

packets, including LACP. 

Convergence depends on how 

fast of the LACP hello or rely 

on the EoMPLS remote-port 

shut down feature

LACP Tunneling Configuration 

l2vpn 

xconnect group grp_1 

p2p eom_1 

interface GigabitEthernet0/0/0/1 

Neighbor 2.2.2.1 pw-id 1000 

PE1 PE2 

l2vpn 

xconnect group grp_2 

p2p eom_2 


Neighbor 2.2.2.2 pw-id 2000 


Cisco Public 

27

ASR 9000 DCI Solution - nV Cluster 

vPC 

DC 

VFI 

DC 

VPLS full mesh 

VFI VFI 

nV Cluster 

VFI 

DC 

VFI 

vPC 

nV Cluster 


Cisco Public 

Reduce the number of PWs a lot 

Use 5 DC as example: 

With nV cluster: 5*(5-1)/2=10 PWs 

Without nV cluster: 10*(10-1)/2=45 PWs 

Simplify VPLS dual homing with 

active/active link bundle: per-flow 

and per-VLAN load balancing 

Sub-second to 50msec fast 

convergence

nV Cluster Configuration 

Connect the EOBC links 

Each RSP has 2 EOBC ports 

Collect Chassis Serial Number using 

“show inventory chassis” 

EoBC Link Configuration 

(admin config) # nv edge control serial rack 0 

(admin config) # nv edge control serial rack 1 

IRL links used for nV Cluster data plane 

connection 


Cisco Public 

IRL can be only on 10G Typhoon Line cards 

IRL Link Configuration 

(config)#interface tenGigE 0/2/0/0 

(config-if)#nv edge interface 

(config)#interface tenGigE 1/2/0/0 

(config-if)#nv edge interface 

29

ASR 9K DCI Solution – ICCP based VPLS Multi-homing 

Per-VLAN active/active load balancing 

ASR9K PE control the blocking/forwarding based 

on ICCP, which is independent of the CE device 

DC 

DC 

VPLS full mesh 

DC 

VFI VFI VFI VFI 

ICCP 

VFI 

VFI 

TCN 

message 

ICCP 

VFI 

vPC 


Cisco Public 

ASR9K PE send MVRP-Lite or STP TCN 

message to DC switches during network 

failure event avoid packet black hole 

issue 

Simple solution 

– Doesn’t require BGP 

– ICCP between local PE pair 

– Independent of the CE switches 


– Works for all service: L2 and L3, 

not limited to VPLS 

– Works for any topology

ICCP VPLS Multi-homing Configuration 

redundancy 

iccp group 100 

member 

neighbor 222.222.222.222 

! 

backbone 



l2vpn 

nsr 

redundancy 


multi-homing node-id 1 


primary vlan 1-100 

secondary vlan 101-200 

recovery delay 60 

PE1 PE2 

redundancy 


member 

neighbor 111.111.111.111 

! 

backbone 



l2vpn 

nsr 

redundancy 


multi-homing node-id 2 


primary vlan 101-200 

secondary vlan 1-100 

recovery delay 60 


Cisco Public 

31

ICCP VPLS Multi-homing Configuration 

PE1 Bundle-Ethernet 


interface Bundle-Ether100.1 l2transport 

encapsulation dot1q 1-100 



PE2 Bundle-Ethernet 







Cisco Public

ASR9K DCI Solution Enhancement – PBB-VPLS 

One common backbone VPLS full mesh for all bridge-domains: 

Highly PW scale O(1) instead of O(n2) 

One time VFI/PW provisioning 

vPC 

DC 

VFI 

DC 

VFI VFI 

nV Cluster 

VFI 

PBB-VPLS 

DC 

VFI 

vPC 


Cisco Public 

Aggregate all or multiple bridge-domains 

into one common backbone VFI 

SP DCI deployment example: 

20 DC sites, 40 PEs, 8K 

Bridge-domains/VFIs 

– With full mesh VPLS PW, it 

require (40-1)*8K= ~320K 

PWs per PE 

– With PBB-VPLS, it only 

require 39 VPLS PW

PBB-VPLS Configuration 

l2vpn 

! 

bridge group pbb_vpls 

bridge-domain pbb_edge 


pbb edge i-sid 1100 core-bridge pbb_vpls_core 

! 

Edge BD Core BD 

l2vpn 

bridge group pbb_vpls 

bridge-domain pbb_vpls_core 

vfi vfi1 




Cisco Public 

! 

! 

pbb core 

! 

rewrite ingress tag push dot1ad 100 symmetric 

34

L2VPN Evolution with EVPN: MAC Routing 

VPLS EVPN 

Packet Forwarding VLAN/BD/VSI VLAN/BD/VSI 

Packet Isolation 

Loop Prevention 

Based on MAC address 

Data plane auto learning 

VPLS multi-homing 

Per-VLAN load balancing 

Single Path 

The combined advantages of both L2 and L3 Forwarding 

• Per-flow load balancing, multiple paths 

• Reduced L2 flooding (no unknown unicast flooding, ARP proxy) 

• Efficient multicast/broadcast distribution (LSM) 

• No control plane overhead, PW is eliminated . No control plane signaling per PW 


Cisco Public 

Control plane MAC 

learning/distribution using 

routing protocol just like L3 

Active/Active MC-LAG 

Per-flow load balancing 

ECMPs

EVPN – The Principle 

From PE1 

iBGP L3-NLRI: 

• next-hop: PE1 

• 

iBGP L2-NLRI 


• 

C-MAC1 

PE1 PE 

PE2 

Control plane: 

Treat MAC as routable addresses and distribute them in BGP 

Active-active MC-LAG, 

per-flow load balancing 

BGP for MAC distribution 

PE3 PE 

From PE3 

iBGP L3-NLRI: 


Data plane: 

MPLS forwarding like L3 

PE4 

C-MAC3 

• 

iBGP L2-NLRI 


• 

Receiving PE injects these MAC addresses into forwarding table along with its associated adjacency 

like IP prefix 

When multiple PE nodes advertise the same MAC, then multiple adjacency is created for that MAC 

address in the forwarding table: multi-paths 

When forwarding traffic for a given unicast MAC DA, a hashing algorithm based on L2/L3/L4 header 

is used to pick one of the adjacencies for forwarding: per-flow load balancing 


Cisco Public

PBB-EVPN for Simplicity and High Scale 

EVPN 

Advertises each customer MAC address as BGP route. So it’s not scalable 

solution for large scale deployment 

For details: draft-ietf-l2vpn-evpn 

PBB-EVPN 

Leverages PBB header to dramatically simplify the EVPN operation. So it’s not 

“PBB+EVPN”. In fact, it’s much more simple than EVPN itself 

Only advertises B-MAC address via BGP: Highly scalable solution 

Has additional benefits: draft-ietf-l2vpn-pbb-evpn 


Cisco Public

Deploying Large Scale DCI with PBB-EVPN 

Flexible and Scalable DCI PE 

Highly scale: 64K+ BDs 

VLAN local significant, flexible VLAN 

translation, 128K VLANs, re-use VLAN on the 

ToR switches 

Per-LC HW based C-MAC learning 

DC 

Intra-DC 

4K VLAN per each ToR switch 

Limited MAC per each ToR switch 

Scale with more ToR switches 


Cisco Public 

DC 

PBB-EVPN 

Inter-DC network (w PBB-EVPN) 

MAC routing: fast convergence, L3 ECMPs, 

optimized multicast forwarding, flexible policy 

control 

L2VPN auto discovery 

No PW required, highly scale for many sites 

DC 

DC boundary 

PBB-EVPN Active-active MC-LAG 

with auto provisioning

PBB-EVPN Configuration 

redundancy 

iccp 

group 66 

mlacp node 1 

mlacp system mac 0aaa.0bbb.0ccc 

mlacp system priority 1 

mode singleton 


mlacp iccp-group 66 


encapsulation dot1q 777 


Cisco Public 

l2vpn 

bridge group gr1 

bridge-domain bd1 


pbb edge i-sid 100 core-bridge-domain core_bd1 

bridge group gr2 

bridge-domain core_bd1 

pbb-core 

evpn vpn-id 1000 

router bgp 64 

address-family l2vpn evpn 

neighbor remote-as 64 

address-family l2vpn evpn 

39

MAC 

bridging 

MAC 

routing 

L2 DCI Technology Comparison 

Feature 

VPLS 

PBB- 

VPLS 

MAC 

Scale 

Tenant 

VPN 

PW 

EVPN ** 

Same 

PBB- 

EVPN 

FP/Trill- 

EVPN 

* 

* 

* 

Optimized 

forwarding 

Per-VLAN***, 

single path 

Per-flow, ECMP, 

multi-paths 

Network 

resiliency 

ICCP-SM 

Per-VLAN LB 

Geo-red 

nV Cluster 

A/A MC-LAG 

Per-flow or per- 

VLAN LB 

Geo-red 

A/A, ECMPs 

DC-NGN tight 

integration 


Cisco Public 

Operation Policy Release 

Now 

 

 

 

DC-NGN tight 

integration 

* Support O(10 Million) MAC Addresses per DC. Confinement of C-MAC Learning 

** BGP control plane overhead, slow convergence during MAC movement 

*** fat-pw can support per-flow load balancing, but it’s single PE termination point only 

 

 

 

Now 

CY14 

2HCY13 

Radar

Beyond the DCI: Evolution of the Cloud Networking 

Classic Solution 

• L2 DCI: VPLS 

• DC fabric: legacy L2 

• L2/L3 boundary: 

aggregation switch 

L2 DCI Enhancements 

• Resiliency 

• Scale 

• Simple provisioning 

Optimize L2 DCI 

• EVPN/PBB-EVPN 

DC Fabric Evolution 

• FP/Trill 

• IP Fabric: VXLAN, NV-GRE 

• MPLS 

Optimize L3 Routing 

• Centralized vs. Distributed PE 

• Host-based vs. Network-based routing 


Cisco Public

Agenda 






– Cisco ONE 


Cisco Public

Traditional Data Center Service Model 

Today’s Network Forces Services Isolation 

At Work 

At Home 

On the Move 

Traditional Services Model: 

• All services traffic backhauled to central site 

• Scale, latency challenges as service popularity grows 

The Network 


Cisco Public 

App 

Traditional 

(Centralized) 

Data Center

Virtualized Cloud Services Infrastructure 

The Network Becomes the Services Layer 

At Work 

At Home 

On the Move 

Virtualized Services Model: 

• Compute capacity distributed into network infrastructure 

• Identical apps & hosting environments using VMs 

ASR9k 

Services 

Edge 

App 


Cisco Public 

App 

VM VM 

Creatively Link Apps to Network Resources: 

• Couple BB subscribers to VoD streams 

• Create service chains; BNG > DPI > CGv6 

Traditional 

(Centralized) 

Data Center

Virtualized Cloud Service Use Case 

Remote Site – 

Enterprise A 

Remote Office – 

Enterprise B 

Remote Office – 

Enterprise A 

SaaS 

App-1 

SaaS 

App-2 


Cisco Public 

Host Services offered by multiple SaaS Vendors. 

Multiple instances for each SaaS vendor 

Optimize Scaling using distributed infrastructure

Agenda 






– Cisco ONE 


Cisco Public

Cisco ONE: Value Proposition 

Monetization 

Video- 

Scape 

POLICY 

Cloud 

Collaboration 

Orchestration 

Network 

Application 

Community 

ANALYTICS 

Optimization 


Cisco Public 

Monetization 

Adaptive billing infrastructure 

B2B2C Business Models 

Premium Resource Allocation 

VIP Customer treatment 

Optimization 

Real time analysis of traffic profiles 

Finding unused capacity 

Map resources to SLA 

Closed Feedback Loop 

Net Effect Platform Enablement

Cisco ONE Use Case: Dynamic Bandwidth Allocation 

Customer 

1 

CPE 

4 

Ingress PE 

ASR 9K with OnePK 

1. Customer requests premium access to cloud service 

2. Policy server pushes customer policy to OnePK on 9k 

3 

2 2 

SP Network 

SP Policy Server 

Egress PE 

ASR 9K with OnePK 


Cisco Public 

Cloud Service 

3. SP Policy Server uses OnePK API to program higher bandwidth QoS policy for specific flow [Customer IP Cloud Service IP] 

4. Customer traffic matching the policy is given premium QoS treatment 

Using Cisco OnePK API SPs can build custom apps to create differentiated, revenue generating services

Summary: ASR 9000 as Universal Cloud Gateway 

Regulatory 

Public 

Healthcare 

Hybrid 

Community 

Media 

Private 

Elastic, Agile, and Cloud Optimized 

HW & SW Foundation DCI 

Virtualized Cloud 

Services 


Cisco Public 

Cisco ONE

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50

Acronyms 

Acronym Description 

BFD Bidirectional Failure Detection 

CAPX Capital Expenditure 

CE Customer Edge 

CFM Connectivity Fault Management 

DCI Data Center Interconnect 

ECMP Equal Cost Multi Path 

EoMPLS Ethernet over MPLS 

EVC Ethernet Virtual Connections 

EVPN Ethernet Virtual Private Network 

FIB Forwarding Information Base 

FP Fabric Path 

FRR Fast Re-Route 


H-VPLS Hierarchical VPLS 

ICCP Inter Chassis Communication Protocol 

IRB Integrated Routing & Bridging 

LACP Link Aggregation Control Protocol 

LDP Label Distribution Protocol 

MC-LAG Multi-Chassis Link Aggregation Group 

MSDC Massively Scalable Data Center 

NGN Next Generation Network 

nV Network Virtualization 

NVGRE Network Virtualization using GRE 


Cisco Public 

OAM Operations, Administration & Maintenance 

OS Operating System

Acronyms 


OTV Overlay Transport Virtualization 

P2P Point to Point 

PBB Provider Backbone Bridge 

PE Provider Edge 

PIC Prefix Independent Convergence 

PW Pseudo Wire 

RSVP Resource Reservation Protocol 

SLA Service Level Agreement 

SP Service Provider 

STP Spanning Tree Protocol 

TCN Topology Change Notification 

TE Traffic Engineering 


TOR Top of Rack 

VFI Virtual Forwarding Instance 

VM Virtual Machine 

vPC Virtual Port Channel 

VPLS Virtual Private LAN Service 

VRF Virtual Route Forwarding 

VSI Virtual Switch Instance 

WAN Wide Area Network 


Cisco Public

BRKSPG-2684

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