Foco : Ethernet/Acesso. Renier Edward Souza SE Manager South America Setembro/2003

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1 Tendências em Redes Metropolitanas Foco : Ethernet/Acesso Renier Edward Souza SE Manager South America Setembro/2003

2 Agenda Introduction Metro Evolution Ethernet Services over SONET Model Ethernet Services, Ethernet Transport Model Metro Solutions and Services How it works Topologies Vlan Translation Point to Point Connection Case Studies Conclusions page 2

3 Market Innovation Complexity Simplicity Flexibility Innovation CPU-based multiprotocol routers ASIC-based Layer 3 switching Seamless access infrastructure and programmable core Context Large number of LAN technologies (e.g., FDDI, Ethernet, token ring, IPX ) Ethernet and IP win the protocol battle Convergence: new devices and applications (e.g., wireless, SANs, VoIP ) page 3

4 Necessidade de Banda Versus Disponibilidade de Investimentos

5 Global Capital Expenditure Outlook for Carriers North American RBOCs (~18-20% of wireline capex) At Capex down 9% in 2003, $7B in overbuild remaining. AND % 28% 26% 24% 22% 20% 18% 16% 14% 12% 10% Average 21% (89-99) Potential $21.4B overbuild So far we have worked off $6B in 2002 Flat 2004 Capex and we finally finish off the overbuild by year end Could mean no growth until Expect US RBOC revenue to decline by 2% in 2003 and flat in Worldwide declines will be similar. Driven mainly by price competition. Should see some International activity E $500 $475 $450 $425 $400 AT&T IP Services Revenue $442 $445 $421 $408 $ % Y/Y $459 page 5 Residential Broadband the brightest spot, new subs growing at 25-30% per year. $375 $ Q1 2002Q2 2002Q3 2002Q4 2003Q1 2003Q2 Global Capex down 10-15% in 2003 and Flattish in 2004 Source: JMP Securities, US Census Bureau Source: Factset, First Call, JMP Securities

6 Trends in US Technology Hardware 40,000 35,000 30% Decline in orders 25% Decline in shipments $ Billions 30,000 25,000 20,000 Recovery or Another Bump in the Road? 15,000 page 6 Apr-92 Oct-92 Apr-93 Oct-93 Apr-94 Oct-94 Apr-95 Oct-95 Apr-96 Oct-96 Apr-97 Oct-97 Apr-98 Oct-98 Apr-99 Oct-99 Apr-00 Oct-00 Apr-01 Oct-01 Apr-02 Oct-02 Apr-03 Hardware New Orders (3mo avg) Hardware Shipments (3mo avg) Source: JMP Securities, US Census Bureau

7 Trends Inside Hardware: Computers vs. Communications Jan-00 Apr-00 Jul-00 Oct-00 Jan-01 Apr-01 Jul-01 Oct-01 Jan-02 Apr-02 Jul-02 Oct-02 Jan-03 Apr-03 Comm Equipment IP Computers and Office Equip IP page 7 Source: JMP Securities, US Census Bureau

8 Network Issues & Trends (IP/Bus Class IP) (ATM/FR) The New IP Infrastructure (VOIP) page 8 (Broadcast)

9 SDH/ATM x Ethernet in Metro Networks Talking about Simplicity... page 9

10 page 10 SONNET vs. Ethernet

11 Ethernet Economic Advantage Equipment $/Mbps BW mgmt & Provisioning Annual Maint Upgrades BW on Demand IP/ATM/SONET $8-40k $5k $750-$3750 Hard IP/SONET $6-35k $5k $750-$3750 Hard IP/Ethernet $1-3k $1k $ Easy GigE Advantage 8:1-13:1 5:1 5:1 8:1 Easy page 11 Source: Yipes, Dell Oro, Yankee Group, Extreme Networks, Juniper Networks Assumes a regional network with five hubs and 10 rings

12 SDH/ATM Big Networks for Data Regional Optical Networks page 12

13 Public Ethernet Networks Designed for data services Metro Ethernet Network page 13

14 page 14 Ethernet Services Marketing Metro Market Evolution

15 Trends in Metro Ethernet Networks Early 90s Late 90s Mid 00s Advent of Ethernet Metro Networks Ethernet Services provided over Advanced Ethernet Asia, Japan, Europe Metro Area Networks = Leased Line Services over SONET/SDH Ethernet Services provided over SONET North America page 15

16 The Metro has Evolved page 16 Market has split into two spaces Ethernet over SONET (EoS) US/EMEA/Australia - ILECs/PTTs, IXCs Using Ethernet to market excess capacity of SONET networks Layer 3 Services are primary offering Attempt to extend life of recently upgraded infrastructure Ethernet over Ethernet Japan/Asia/Northern Europe CLECs as well as incumbents Layer 2/3 access providers First and second-tier ISPs Municipal carriers, utilities, schools, government Private MANs Extending LANs with Ethernet campus and metro network extensions Trying to solve similar issues as service providers - but at lower cost points, using familiar technology Understanding this evolution and our position will keep us viable and a leader in the market

17 Ethernet over SONET Ethernet services over legacy transport is not really Ethernet at all Providers lose the cost and simplicity advantages Subscribers have to deal with inefficient encapsulation and slow protocol translations Ethernet over SONET/SDH mismatched planes, bandwidth increments a 10 MB service requires a T3/E3 transport! Providers using the Ethernet brand to attract new business Ethernet services over SONET is like building a motorcycle out of a car page 17

18 Success in the EoS model Provide integration, testing and knowledge to offer total solution VoIP transport Extreme switches running EAPS and EoE SDH/SONET Transport Network Router/ BRAS IP Backbone page 18 End User Premises Ethernet Access Network (I.E.)DSLAN Aggregation

19 The New Market Ethernet over Ethernet First recognized in Japan, Asia and EMEA Ethernet over Ethernet services over transport Metro architecture that does not necessarily travel around a single city May span a campus, a town, a state or a country May not require Layer 3 Requires some of the features needed in the ILEC Metro Resiliency, scalability, security and typical Ethernet services Cost sensitive, Ethernet feature-oriented, dense port counts Customer base may include universities, city governments, school districts, first and second tier ISP, and high volume Layer 2 access providers page 19

20 Metro solutions and Services Internet Access (L3 Access) Point to Point Connection

21 Terminologia Core / Backbone Anel de Acesso Anel de Acesso Customer 1 Customer 2 Customer 1 Customer 2 page 21

22 Point to Point connection Core / Backbone Anel de Acesso VLAN Tunnel Customer 1 Customer 2 Customer 1 Customer 2 Solução : Manter o mais simples possível. A tecnologia Ethernet teve de evoluir! page 22 Necessidades Básicas : * Tunelamento (VPN, MPLS, etc) * Failover (STP, EAPS, etc) * Escalonamento

23 MPLS / VPLS : Onde? Core / Backbone Anel de Acesso VLAN Tunnel page 23 Customer 1 Customer 2? Anel de Acesso? Core / Backbone RESPOSTA : Simplicidade e Custo competitivo!!!!!! Customer 1 Customer 2

24 Mantendo a Simplicidade... Core / Backbone Anel de Acesso VLAN Tunnel Customer 1 Customer 2 Customer 1 Customer 2 Anel de Acesso * Tunelamento (801.1Q) * Failover (STP, EAPS) * Escalonamento (Q in Q, Vlan Translation) Core / Backbone * Tunelamento (VPN, MPLS/VPLS) * Failover (MPLS, EAPS) * Escalonamento (MPLS) RESPOSTA : Simplicidade e Custo competitivo!!!!!! page 24

25 O que é EAPS - RFC 3619?? Core / Backbone Anel de Acesso VLAN Tunnel Customer 1 Customer 2 Customer 1 Customer 2 Anel de Acesso * Tunelamento (801.1Q) * Failover (STP, EAPS) * Escalonamento (Q in Q, Vlan Translation) Core / Backbone * Tunelamento (VPN, MPLS/VPLS) * Failover (MPLS, EAPS) * Escalonamento (MPLS) page 25 Necessidades : * Tunelamento * Failover * Escalonamento

26 EAPS - RFC 3619 EAPS: Fast protection switching to Layer 2 switches interconnected in an Ethernet ring topology Transit node Faster than Fast STP in a ring: Transit node < 50 Milliseconds Traffic can flow in both directions on the ring. Transit node Gigabit Ethernet Fiber EAPS MAN Ring Transit node Recovery should be approx 1 second Works specifically in a ring topology Master node No set limit on number of switches in a ring Can run separate instances in separate rings. A VLAN can span multiple rings The topology and primary and backup path per VLAN are pre-defined for the switch Upon failure traffic is redirected and appropriate forwarding databases are flushed. Will want a provisioning tool for all the configuration information required page 26

27 How it works? Control Vlan (802.1Q) Key Components: Data Vlan = Protected Vlans (802.1Q) Domain Master Node Transit Node Primary Port Secondary Port Control VLAN Data VLAN If the ring is complete, the master node logically blocks all data traffic in the transmit and receive directions on the secondary port to prevent a loop. If the master node detects a break in the ring, it page 27 unblocks its secondary port and allows data traffic to be transmitted and received through it. EAPS - RFC 3619

28 How failover works? Control Vlan (802.1Q) Data Vlan = Protected Vlans (802.1Q) page 28 EAPS - RFC 3619

29 Domínios de EAPS Domain-3 Domain-1 Domain-2 The physical link between two nodes in a multiple EAPS domain state is the common link. Each node is configured with a shared port to another node in an EAPS domain to create the common link. To prevent a superloop from occurring if the common link between the multiple EAPS domains fails, the switches on either end of the common link must be configured as controller and a partner. page 29 EAPS - RFC 3619

30 Exemplos de Topologias page 30 EAPS - RFC 3619

31 Mantendo a Simplicidade... Core / Backbone Anel de Acesso VLAN Tunnel Customer 1 Customer 2 Customer 1 Customer 2 Anel de Acesso * Tunelamento (801.1Q) * Failover (STP, EAPS) * Escalonamento (Q in Q, Vlan Translation) Core / Backbone * Tunelamento (VPN, MPLS/VPLS) * Failover (MPLS, EAPS) * Escalonamento (MPLS) RESPOSTA : Simplicidade e Custo competitivo!!!!!! page 31

32 O que é VLAN Translation?? Core / Backbone Anel de Acesso VLAN Tunnel Customer 1 Customer 2 Customer 1 Customer 2 Anel de Acesso * Tunelamento (801.1Q) * Failover (STP, EAPS) * Escalonamento (Q in Q, Vlan Translation) Core / Backbone * Tunelamento (VPN, MPLS/VPLS) * Failover (MPLS, EAPS) * Escalonamento (MPLS) page 32 Necessidades : * Tunelamento * Failover * Escalonamento

33 PC1 VLAN Translation VLAN 101 PC4 PH1 VLAN 201 IAD VLAN 101 (Data) VLAN 201 (Voice) PC2 PH2 VLAN 102 VLAN 202 IAD VLAN 102 (Data) VLAN 202 (Voice) VLAN Translation Switch VLAN 1 (Data) VLAN 2 (Voice) MAN MAN Core Core Router Router VLAN 103 (Data) VLAN 203 (Voice) PC3 VLAN 103 IAD page 33 PH3 VLAN 203

34 VLAN 101 VLAN Translation IAD VLAN 101 (Data) VLAN 201 (Voice) VLAN 201 VLAN 102 L2 Switch VLAN 202 IAD VLAN 102 (Data) VLAN 202 (Voice) VLAN 101,102 (Data) VLAN 201,202 (Voice) VLAN 103 VLAN 203 VLAN 104 IAD IAD VLAN 103 (Data) VLAN 203 (Voice) VLAN 104 (Data) VLAN 204 (Voice) L2 Switch VLAN 103,104 (Data) VLAN 203,204 (Voice) L2 Switch Lots of 100 VLANs (Data) Lots of 200 VLANs (Voice) Extreme Switch with VLAN Translation VLAN 1 (Data) VLAN 2 (Voice) Backbone VLAN 204 VLAN 111 O O O IAD VLAN 111 (Data) VLAN 211 (Voice) VLAN 111,112 (Data) VLAN 211,212 (Voice) IAD to backbone traffic: Extreme switch rewrites all 1xx VLAN IDs to 1 and all 2xx VLAN IDs to 2 for all destination MAC addresses Backbone to IAD traffic: For unicast traffic destined to a known MAC address, the Extreme switch rewrites VLAN 1 or 2 to the appropriate 1xx or 2xx ID VLAN 211 VLAN 112 L2 Switch When the destination MAC address is unknown, the packet is flooded to all 1xx and 2xx VLANs based upon the source ID page 34 VLAN 212 IAD O O O VLAN 112 (Data) VLAN 212 (voice)

35 page 35 Wholesale Residential Internet Access With Vlan Translation

36 page 36 Converged Services Wholesale Model with Vlan Translation

37 l1 l2 l4 l5 l7 l8 l3 l6 l9 l* l8 l# l1 l2 l3 l4 l5 l6 l7 l8 l9 l* l8 l# Converged Services Layer 3 Model lvod or Streaming Video lvideo Services lpstn linternet Access lvoice Services lvoip Gateway lthree services on one access VLAN lisp lcolocation Facility llayer-2 Distribution Ring lip DSLAM lip DSLAM lip DSLAM lip DSLAM llayer-2 Access Ring lcomputer lvoip lgw lsetltop lbox llayer-2 Access Ring page 37 lresidential or business ladsl subscribers lroute Boundaries lresidential or business ldirect Ethernet lcomputer lvoip lgw lsetltop lbox

38 O que é vman?? Core / Backbone Anel de Acesso VLAN Tunnel Customer 1 Customer 2 Customer 1 Customer 2 Anel de Acesso * Tunelamento (801.1Q) * Failover (STP, EAPS) * Escalonamento (Q in Q, Vlan Translation) Core / Backbone * Tunelamento (VPN, MPLS/VPLS) * Failover (MPLS, EAPS) * Escalonamento (MPLS) page 38 Necessidades : * Tunelamento * Failover * Escalonamento

39 Extensions for Scaling: vmans Multi-site customer needing VPN ISP interconnect Cust 2 Cust 1 Internet 48 i 48 i Sub-POP Cust 2 48 i ISP B Summit48 48 i 48 i Sub-POP 48 i 48 i 48 i ISP A Sub-POP Cust 1 48 i POP page 39 LX & 70Km GBICs and Red. Phys for sub-second fail-over

40 vmans: Virtual Private Metropolitan Area Networks Data Link.1Q Tag Header VLAN ID = 10 Data Link.1Q Tag Header VLAN ID = 30 page 40 Customer Date ( Bytes) Data Link.1Q Tag Header VLAN ID = 10 Data Link Header vman Tag Domain = 50.1Q Tag VLAN ID = 10 Customer Date ( Bytes) Data Link Header vman Tag Domain = 60.1Q Tag VLAN ID = 30 Customer Date ( Bytes) Customer Date ( Bytes) Data Link.1Q Tag Header VLAN ID = 30 Customer Date ( Bytes) Customer Date ( Bytes)

41 Metro solutions and Services Internet Access Point to Point Connection page 41

42 Serviço de Acesso Internet Anel de Acesso Core / Backbone Internet Customer 1 Customer 2 page 42

43 Metro solutions and Services Internet Access Point to Point Connection page 43

44 Point to Point connection VLAN Tunnel Customer 1 Customer 2 Customer 1 Customer 2 page 44 Necessidades Básicas : * Tunelamento (VPN, MPLS, etc) * Failover * Escalonamento

45 Extending L2 VPNs over the WAN EAPS Ingress LSR MPLS Backbone Egress LSR EAPS VLAN Tunnel page 45 Customer 2 Customer 1 VLANs tunneled into MPLS LSPs QoS mapped into MPLS COS Black Diamond / Alpine / Summits Customer 1 Customer 2

46 Metro Solution EAPS Ingress LSR MPLS Backbone Egress LSR EAPS MPLS NETWORK VLAN Tunnel Customer 1 Customer 2 VLANs/Vmans tunneled into MPLS LSPs QoS mapped into MPLS COS Customer 1 Customer 2 page 46 Tunnels usando Vlans 802.1Q / Vman - Proteção do anel (Failover) usando EAPS

47 Extending L2 VPNs over the WAN vman Ingress LSR Egress LSR vman MPLS NETWORK VLAN Tunnel Customer Customer Customer Customer page 47 VLANs tunneled to HVPLS QoS mapped into MPLS COS Juniper M20/M40 Black Diamond/Alpine/Summit ï

48 MAN with Layer 2 and 3 utilizing OSPF/STP/vMAN Layer-2 and Layer-3 Service on the same physical port Subscriber needs a device capable of routing an untagged vlan while supporting tagged traffic for TLS /EAPS page 48

49 Conclusions Trends in Local Area Networks Cycling back to a multi-technology, multi-protocol environment requiring very flexible, feature rich switches in the network core. Trends in Metro Ethernet Networks Extending Ethernet and L2/L3 switching to enable very large scale, resilient, secure delivery of Ethernet services Standards The vast majority of all Ethernet related standards activity is focused on the demands of Metro Ethernet Networking page 49

50 Quem é o cliente?? page 50

51 O que as Corporaçõ ções pensam sobre Tecnologia? page 51

52 page 52 Ou uma grande dor de Cabeça!

53 Renier Edward Souza SE Manager Muito Obrigado!!!!!!

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