高價值波長、專線服務 – 了解客戶和提供商的觀點.pdf

1、#CiscoLive#CiscoLiveChristian Schmutzer,Distinguished EngineerBRKOPT-1005Understanding the Customer and Provider PerspectiveHigh Value Wavelength/Private Line Services 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveEnter your personal notes hereCisco Webex App Questions?U

2、se Cisco Webex App to chat with the speaker after the sessionFind this session in the Cisco Live Mobile AppClick“Join the Discussion”Install the Webex App or go directly to the Webex spaceEnter messages/questions in the Webex spaceHowWebex spaces will be moderated by the speaker until June 9,2023.12

3、343https:/ 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBRKOPT-10053 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWavelengths(Private Lines)are Premium Services High bandwidthHigh availabilityDiverse payloads9 99 99 99 99 9BRKOPT-10054 2023 Cisco and

4、/or its affiliates.All rights reserved.Cisco Public#CiscoLiveFibre Channel to build your fault tolerant SANDedicated WAN pipes for your topologyWhen Only the Very Best will DoTransport providerCustomerPublic cloudEnterprise private cloudCloud connectFabric AFabric BDatacenter1Datacenter 2Co-location

5、SAN Storage Area NetworkBRKOPT-10055 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWavelengths,TDM have been the Gold StandardDedicated resourcesEmbedded OAMPayload agnosticPoint to pointROADMOTNAZSite 1Site 2Site 4Site 3AZSite 1Site 2Site 4Site 3AZSite 1Site 2Site 4Site

6、 3Trans-or muxponderROADMOTN switchBRKOPT-10056 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveMeanwhile the Reality in Packet NetworksOne network for L2 and L3 servicesEfficient use of network bandwidthSimple and scalablePROsEthernet payloads onlyOAMBandwidth commitmentL

7、oad-balancingCONs&CONCERNSAttachment circuitL2PDUL2PDUL2PDUMPLSProvider Edge(PE)routerAttachment circuitBrilliant Idea back in 2001(RFC3985 and RFC3915)PseudowireTransport L2 payload over packet networks using a“pseudo”wire service BRKOPT-10057 2023 Cisco and/or its affiliates.All rights reserved.Ci

8、sco Public#CiscoLivePacket is Like Driving in LA Wavelength is a Private JetAlways reserved for your teamRuns on a schedulePut whoever you want in those seatsAsymmetric routes&latencyShared Bandwidth(rush hour)Source:SeatguruSource:google mapsBRKOPT-10058 2023 Cisco and/or its affiliates.All rights

9、reserved.Cisco Public#CiscoLiveMassive Shifts in Economics of RoutingCoherent transceivers eliminate the need for DWDM transponders05,00010,00015,00020,00025,0002013 2015 2017 2019 2020 2021 2022Chipset Bandwidth in GbpsSONETOTNPacketAdvances in siliconBRKOPT-10059 2023 Cisco and/or its affiliates.A

10、ll rights reserved.Cisco Public#CiscoLiveAnd there are challenges todayBRKOPT-1005Provider ACustomersXOperating 2 networks is hard&expensiveWhat if I only have an IP network?Provider ACustomersTransponders/muxpondersOTN cross connectIP/MPLSIP/MPLSNon-ethernet deviceNon-ethernet device?10Agenda 2023

11、Cisco and/or its affiliates.All rights reserved.Cisco PublicBit-transparency&Non-etherent payloadsClockingInband OAMMTU and overheadCo-routed,bidirectional pathsDedicated bandwidth+some extra thoughtsBRKOPT-1005It is time for a Change,but.11Non-Ethernet Payloads 2023 Cisco and/or its affiliates.All

12、rights reserved.Cisco Public#CiscoLiveVirtual Private Wire Service(Pseudowire)Emulation of a“Telecommunications service”Initially defined by IETF PWE3 working group via RFC 3985T-LDP for pseudowire signalingFrame Relay,ATM,Ethernet and TDMModernized by IETF BESS working group via RFC 8214MP-BGP for

13、pseudowire signaling EVPN-VPWSBRKOPT-1005PseudowireAttachment circuitProvider edge(PE)routerAttachment circuit13 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRouters do look for Frames on an Ethernet PortIncoming bit stream is de-serializedClock is recoveredAlign to PCS

14、 stream8B10B,64B/66B or 256B/257BIdentify MAC framesDst MACSrc MACVLANetypeFCSpayloadEthernet frameBits on the wire0101010111010101BRKOPT-100514 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhat if we(want to)stop much earlier?We just process bitsWe are unaware of ether

15、net frames and their boundariesWe can carry what we want(However)we need special hardware to do thatBRKOPT-1005Bits on the wire010101011101010115 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveSolving the Control Protocol Challenge finallyMost products can tunnel/process

16、spanning tree,LACP and OAM properlyBut there is always something new likeMACSEC uses EAPOL(IEEE 802.1X-2010)for key exchangeEtherType 0 x888e and destination MAC 01-80-C2-00-00-03MEF 45.1 is only“recommending”to pass those frames for ethernet private lines(EPLs)BRKOPT-100516 2023 Cisco and/or its af

17、filiates.All rights reserved.Cisco Public#CiscoLivePrivate Line Emulation(PLE)=Bits over PacketsEncapsulation of bit-stream into packetsExtend idea from RFC 4553(SATOP)beyond T1/E1 to Ethernet,Fibre Channel,OCn/STMn,anythingStandardization at IETF underwaydraft-schmutzer-pals-ple0 1 2 30123456789012

18、3456789012345678901+-+|PSN and VPWS Demux|(MPLS/SRv6)|+-+|0000|L|R|RSV|LEN|sequence nr|+-+|RTP Header|+-+|Bit Stream|Payload|+-+Figure 3:PLE Encapsulation LayerPSN Packet Switched NetworkSource:draft-schmutzer-pals-pleAttachment circuitProvider Edge(PE)routerAttachment circuitPseudowireBRKOPT-100517

19、 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveConverting Packets back to BitsDCRDecapTx clockBit-stream de-packetizationCommon clock50%Store packets in a de-jitter bufferPacket Delay Variation(PDV)Packet reorderingBit from the packet payloads are transmitted using the r

20、ecovered clockBRKOPT-100518 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePLE payload typesSONET/SDHSONET/SDHOTNOTNEthernetEthernetFibre ChannelFibre ChannelODU01GE1GFCOC48/STM16ODU12GFC4GFC8GFCOC192/STM64ODU2/ODU2e10GE16GFC32GFC64GFCODU4100GE128GFC200GE400GE1Gbps+100Gbp

21、sBRKOPT-1005Supported today 19 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveEmulation is independent of the physical InterfaceSimilar to SAToP(RFC 4553)the structure agnostic attachment circuit is independent from the physical port typeIt can either be a physical ethern

22、et port or ODU2e mapped“logical”10GE port inside a 100Gbps OTU4 interface extracted by the native service processing(NSP)functionBRKOPT-1005PE1PE2CE1CE210GBASE-ROTU4AC(10GBASE-R)AC(10GBASE-R)Emulation pseudowireMPLSOTNODU2ODU410GBASE-RODU2e XCNSP20 2023 Cisco and/or its affiliates.All rights reserve

23、d.Cisco Public#CiscoLiveIt is Not about Latency,but about Jitter!BRKOPT-1005Port APort BtimetimeAZDelay of packet XDelay of packet X+1Delay of packet X+2Delay of packet X+3Router transfer latencyOptical propagation delayNetwork Packet Delay Variation(PDV)50%21Source:google mapsAZ 2023 Cisco and/or i

24、ts affiliates.All rights reserved.Cisco Public#CiscoLiveLets quantify this a bitBRKOPT-1005Port APort BRouter transfer latencyOptical propagation delay5 s/kmSource:google mapsAZ22 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveLets quantify this a bitBRKOPT-1005Port APort

25、 BRouter transfer latencyOptical propagation delay5 s/km3-10 sSource:google mapsAZDepening on NPU type and router architecture(number of NPUs passed)23 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveNo Oversubscription,buffering can still happenBRKOPT-1005RX110110%average

26、 load per portRXTXRX2RX3Packets arrives at the same time 100%average loadpackets get serialized out on the egress portDelay for each packet depends on scheduling order24 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveGrowing Interface Speed does help usBRKOPT-100512.1601.

27、2160.1220.0300.00010.00020.00030.00040.00050.00060.00070.00080.0006412825651215009200Time sPacket size Bytes1GE10GE100GE400GESub-microseconds for 100GE and 400GE!25 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveLets quantify this a bitBRKOPT-1005Port APort BRouter transf

28、er latencyOptical propagation delay5 s/kmSource:google mapsAZ3-10 sMax 10 s variance Depening on NPU type and router architecture(number of NPUs passed)26 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveHow much Buffer for our Network?Per router hop jitter 10 sMaximum 30 h

29、ops30*10=300 s PDVBRKOPT-1005timetimeAZDelay of packet XDelay of packet X+1Delay of packet X+2Delay of packet X+3Network Packet Delay Variation(PDV)50%Requires 100s of s of dejitter buffer!27 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveConfiguring a PLE PseudowireDefin

30、e client interfaceEnable L2VPN on the emulation interfaceConfigure EVPN-VPWS28BRKOPT-1005controller Optics0/0/2/2port-mode FC framing cem-packetize rate FC8interface CEM0/0/2/2l2transportl2vpnxconnect group PLEp2p ple_fc8interface CEM0/0/2/2neighbor evpn evi 103 target 16022 source 11022pw-class unp

31、rotected_circuitpw-class unprotected_circuitencapsulation mplspreferred-path sr-te policy srte_c_1_ep_1.0.0.6For your ReferenceAgenda 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBit-transparency&Non-etherent payloadsClockingInband OAMMTU and overheadCo-routed,bidirectional paths

32、Dedicated bandwidth+some extra thoughtsBRKOPT-1005It is time for a Change29Clocking 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveThe Foundation is a Common ClockThe two PLE endpoint routers must have synchronous system clocksCan be achieved by SyncE or BITS(or PTP)PRCPs

33、eudowireSyncE/PTPBITSBITSBRKOPT-100531 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveIndicating Client Clock to the EgressInsert RTP timestamps(counter)Counter frequency=common clockCounter values=how long it takes to fill a packet(depends on client clock)EncapCommon clo

34、cktimestampRX clock0 1 2 301234567890123456789012345678901+-+|PSN and VPWS Demux|(MPLS/SRv6)|+-+|0000|L|R|RSV|LEN|sequence nr|+-+|RTP Header|+-+|Bit Stream|Payload|+-+Figure 3:PLE Encapsulation LayerPSN Packet Switched NetworkSource:draft-schmutzer-pals-pleBRKOPT-100532 2023 Cisco and/or its affilia

35、tes.All rights reserved.Cisco Public#CiscoLiveRecover the Client Clock on EgressDCRDecapTx clockBit-stream de-packetizationCommon clock50%Differential clock recovery(DCR)The RTP timestamp indicates the”difference”between the client and the common clockBRKOPT-100533 2023 Cisco and/or its affiliates.A

36、ll rights reserved.Cisco Public#CiscoLiveCarrier Ethernet merges SyncE Clock DomainsBRKOPT-1005PRC of AWholesale carrier ACustomer BDevices synchronize to Carriers PRC SyncESyncE“classic”EVPN-VPWS34 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCarrier Ethernet merges Sy

37、ncE Clock DomainsBRKOPT-1005PRC of AWholesale carrier ACustomer BDevices can synchronize to customers PRC PLE VPWSSyncEPRC of B35 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveIt is time for a Change,but Bit-transparency&Non-etherent payloadsClockingInband OAMMTU and ove

38、rheadCo-routed,bidirectional pathsDedicated bandwidthBRKOPT-100536Agenda 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBit-transparency&Non-etherent payloadsClockingInband OAMMTU and overheadCo-routed,bidirectional pathsDedicated bandwidth+some extra thoughtsBRKOPT-100537It is tim

39、e for a Change,but.Inband OAM 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhat does OTN do in Case of a Client Failure?OTN(1)o1OTN(1)OTN(2)ODULFLOSc2c1o2o3o4o5OTN(2)Client layerServer layerODUClient layerServer layero1o3o4o5o6OPU CSFc2c1XCSFBRKOPT-1005RFRF39 2023 Cisco

40、 and/or its affiliates.All rights reserved.Cisco Public#CiscoLive what in case of a Network Failure?OTN(1)failureAISo1XOTN(1)OTU BDIOTN(2)ODULFODU BDILOSRFc2c1o2o3o4o5OTN(2)Client layerServer layerODUClient layerServer layero1o3o4o5o6ODU AISc2c1RFBRKOPT-100540 2023 Cisco and/or its affiliates.All ri

41、ghts reserved.Cisco Public#CiscoLiveOAM during Encapsulation(Ingress)Embedded OAM via PW control wordClient faults L bit setRx pseudowire network fault R bit set0 1 2 301234567890123456789012345678901+-+|PSN and VPWS Demux|(MPLS/SRv6)|+-+|0000|L|R|RSV|LEN|sequence nr|+-+|RTP Header|+-+|Bit Stream|Pa

42、yload|+-+Figure 3:PLE Encapsulation LayerPSN Packet Switched NetworkSource:draft-schmutzer-pals-pleBRKOPT-1005Encap41 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveOAM during Decapsulation(Egress)DecapBit-stream de-packetization50%XAIS,LFAIS Alarm Indication SignalLF Loc

43、al FaultNSP.Native Service ProcessingClient fault indicationToo many packets lostIf L bit is set in PW Control wordService specific by structure aware NSPsee section 4 of draft-schmutzer-pals-pleBRKOPT-1005IWFNSP42 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePLE OAM fo

44、r a Client FailurePLE(1)L bitm1PLE(1)PLE(2)PLE pseudowirem2m3m4m5PLE(2)PLE pseudowirem1m2m3m4m5Client layerServer layerClient layerServer layerc2c1LFc2c1LOSXBRKOPT-1005RFRF43 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePLE OAM for a MPLS Network FailurePLE(1)failurePLO

45、Sm1XPLE(1)RFPLE(2)PLE pseudowireR bitLFm2m3m4m5PLE(2)PLE pseudowirem1m2m3m4m5Client layerServer layerClient layerServer layerc2c1LFRFRFc2c1PLOS packet loss of signal state(X consecutive packets lost)BRKOPT-100544 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveVerifying PL

46、E OAM Statistics45BRKOPT-1005RP/0/RP0/CPU0:peyto#show controllers cem 0/0/2/2.Detected Alarms :NoneStatistics Info-Ingress packets :569295050,Ingress packets drop :0Egress packets :409658267,Egress packets drop :0Total error :0Missing packets :0,Malformed packets :0Jitter buffer underrun :0,Jitter b

47、uffer overrun :0Misorder drops :0Reordered packets :0,Frames fragmented :0Error seconds :0,Severely error seconds :0Unavailable seconds :0,Failure counts :0Generated L bits :409658183,Received L bits :409658267Generated R bits :0,Received R bits :2541For your ReferenceWe also have“ITU-style”Performa

48、nce MonitoringAgenda 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBit-transparency&Non-etherent payloadsClockingInband OAMMTU and overheadCo-routed,bidirectional pathsDedicated bandwidth+some extra thoughtsBRKOPT-100546It is time for a Change,but.MTU and Overhead 2023 Cisco and/o

49、r its affiliates.All rights reserved.Cisco Public#CiscoLiveEthernet PW Overhead reduces Customer MTUFor a carrier MTU of 9216,customer MTU must be 9176 or lessOverhead%is frame size dependentWholesale carrier ACustomer B“classic”EVPN-VPWSETH L2+18BpayloadETH L120BETH L2+18BpayloadETH L120BETH L2+18B

50、MPLS/PW+12BETH L2+18BpayloadETH L120BBRKOPT-100548 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePLE VPWS Overhead is just OverheadCustomer MTU can still be 9216(actually anything)6-10%overhead(frame independent)Wholesale carrier ACustomer B“classic”EVPN-VPWSETH L120BETH

51、 L2+18BMPLS/PW24-60BBRKOPT-100549 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveDealing with Overhead is Easy NowadaysBRKOPT-100510GENx10GE10GE100GE10GE/25GE25GE/50GE-Link bundle/ECMP-5-tuple hashing?-100GE expensive-limited router choice-more than enough bandwidth-Good

52、reach varietyPastPresent100GE400ZR/ZR+-Pluggable coherent optics-Open ecosystem100GE?50Agenda 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBit-transparency&Non-etherent payloadsClockingInband OAMMTU and overheadCo-routed,bidirectional pathsDedicated bandwidth+some extra thoughtsB

53、RKOPT-100551It is time for a Change,but.Co-routed,bidirectional Paths&Guaranteed Bandwidth 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveClassic View:Two very different ModelsNative packet transportBandwidth only consumed when customer is sending dataAllows for multiple

54、traffic classes and forwarding behaviorsEmulationBit transparencyConstant network loadTDM transportStatic timeslot allocationBRKOPT-1005TDMTDMCircuit=switched timeslots10GE10GE10GE10GEPktPktCircuit=just a pseudowire10GE10GEEmuEmuCircuit=pseudowire with guaranteed BW53 2023 Cisco and/or its affiliate

55、s.All rights reserved.Cisco Public#CiscoLiveCircuit Emulation=Constant Traffic Load!Native packet transportBandwidth only consumed when customer is sending dataAllows for multiple traffic classes and forwarding behaviorsEmulationBit transparencyConstant network loadTDM transportStatic timeslot alloc

56、ationBRKOPT-1005TDMTDMCircuit=switched timeslots10GE10GE10GE10GEPktPktCircuit=just a pseudowire10GE10GEEmuEmuCircuit=pseudowire with guaranteed BW54 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePremium Transport for Premium ServicesZAWorking path1Protect path2Bandwidth

57、reservation on links3BRKOPT-100555 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhy do protection schemes matter?ZAXZAXMPLS-TE FRRLocal bypass protection,without bandwidth allocatedLoop Free Alternate(LFA)Post convergence path,without bandwidth allocatedBRKOPT-1005Only

58、with path protection you know“a priori”that there wont be congestionZAXPath Protectionpre-allocated bandwidth end2end56 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCircuit-Style Segment Routing(CS-SR)Traffic engineered paths-bidirectional-co-routed-persistentStrict ban

59、dwidth commitment End-to-end path protection&restorationPath OAMBRKOPT-100557 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePath protected,co-routed,bi-directional SR policyZASR policyEndpoint ZColor CCandidate pathPreference 100Candidate pathPreference 50Working LSPProt

60、ect LSPSR policyEndpoint ZColor CCandidate pathPreference 100Candidate pathPreference 50Bi-directional associationFwd SID listrev SID listFwd SID listrev SID listBRKOPT-100558 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveDeterministic and persistent SR pathsStrict list

61、of adjacency SIDs no ECMPManual adjacency SIDs persistent across node reloadsUnprotected adjacency SIDs no traffic rerouting due to TI-LFABRKOPT-10051ZA3245150A1150A3150121501415013150241503415045150Z2150Z5segment list150A1,15012,150Z2router isis core.interface HundredGigE0/0/2/0.address-family ipv4

62、 unicast.adjacency-sid absolute 1501259 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePersistency ignore newly added Resources1ZA3245NEW Working LSP1Protect LSP2Classic TE behavior1ZA3245Working LSP(stays where it was)1Protect LSP2Transport expectationBRKOPT-100560 2023

63、Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePersistency dont adjust to Network Changes1ZA3245NEW Working LSP1Protect LSP2XClassic TE behavior1ZA3245Working LSP(stays DOWN)1Protect LSP2XTransport expectationBRKOPT-100561 2023 Cisco and/or its affiliates.All rights reserved.C

64、isco Public#CiscoLiveConfiguring a“static”CS-SR Policy62BRKOPT-1005segment-routingtraffic-engpolicy protected_manualcolor 2 end-point ipv4 1.0.0.6path-protection!candidate-pathspreference 50explicit segment-list via_three_eightreverse-path segment-list via_eight_three!preference 100explicit segment-

65、list via_two_fourreverse-path segment-list via_four_twoFor your Referencesegment-list via_four_twoindex 10 mpls label 15004index 20 mpls label 15002index 30 mpls label 15001!segment-list via_two_fourindex 10 mpls label 15002index 20 mpls label 15004index 30 mpls label 15006!segment-list via_eight_th

66、reeindex 10 mpls label 15008index 20 mpls label 15003index 30 mpls label 15001!segment-list via_three_eightindex 10 mpls label 15003index 20 mpls label 15008index 30 mpls label 15006SR policyEndpoint ZColor CCandidate pathPreference 100Candidate pathPreference 50“working”“protect”2023 Cisco and/or i

67、ts affiliates.All rights reserved.Cisco Public#CiscoLivePCC-initated CS-SR policy creationZAPCE1)Path knowledge and bandwidth book keepingPCEPPCEP1)Cisco Crosswork Optimization Engine(COE)A SR policy is configured on both endpointsEach endpoint requests a path via PCEP from a central PCECommon bi-di

68、rectional associationRequired bandwidthPath constraintsThe central PCE maintains a real time view ofThe network topology(BGP-LS)All path/bandwidth requests(PCEP)BRKOPT-100563 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveConfiguring a“dynamic”CS-SR Policy64BRKOPT-1005For

69、 your Referencesegment-routingtraffic-engpolicy protected_dynamicbandwidth 8000000color 3 end-point ipv4 1.0.0.6path-protection!candidate-pathspreference 100dynamicpcep!metrictype latency!constraintssegmentsprotection unprotected-onlyadjacency-sid-only!disjoint-path group-id 16 type link!bidirection

70、alco-routedassociation-id 10preference 50dynamicpcep!metrictype latency!lockduration 60!constraintssegmentsprotection unprotected-onlyadjacency-sid-only!disjoint-path group-id 16 type link!bidirectionalco-routedassociation-id 11!preference 10dynamicpcep!metrictype igp!lockduration 60!backup-ineligib

71、le!constraintssegmentsprotection unprotected-onlyadjacency-sid-only!bidirectionalco-routedassociation-id 12 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCS-SR PCE is in CNC5.0BRKOPT-1005Tip:Check out our demo World of Solutions65 2023 Cisco and/or its affiliates.All rig

72、hts reserved.Cisco Public#CiscoLiveHow to Guarantee Bandwidth?Two simple rules1.Traffic of CS-SR is limited(policed)to requested bandwidth2.During congestion only other traffic is dropped,not CS-SRTo adhere to 2)Dont commit what you dont haveTreat CS-SR at highest data priorityBRKOPT-1005Link Capaci

73、tyNetwork ControlPriority X+1Priority X+2CS-SR poolPriority XNon-priorityQueuesAll other traffic66XAgenda 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBit-transparency&Non-etherent payloadsClockingInband OAMMTU and overheadCo-routed,bidirectional pathsDedicated bandwidth+some ext

74、ra thoughtsBRKOPT-100567It is time for a Change,but.2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCS-SR with STAMP adds OAM to TransportBidirectional Liveness and performance measurement via a single protocol(STAMP)Loopback probes with exact reverse path encoded providin

75、g bidirectional detection1ZA324513AA3142341125454Z2Z2521ASTAMP probe12ZProbe looped in data planeSTAMP probeFor more see draft-ietf-spring-stamp-srpmBRKOPT-100568 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveEnabling Candidate Path Liveness69BRKOPT-1005segment-routingtr

76、affic-engpolicy protected_manual.performance-measurementliveness-detectionliveness-profile backup name cs_protectliveness-profile name cs_workingFor your Referenceperformance-measurementliveness-profile name cs_protectliveness-detectionmultiplier 3!probetx-interval 100000!liveness-profile name cs_wo

77、rkingliveness-detectionmultiplier 3!probetx-interval 3300!npu-offloadenableAgenda 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBit-transparency&Non-etherent payloadsClockingInband OAMMTU and overheadCo-routed,bidirectional pathsDedicated bandwidth+some extra thoughtsBRKOPT-100570

78、It is time for a Change,but.So far so good lets try to deploy this 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePLE is real since XR 7.7.1(July 2022)!Supported client types1GE,10GEOC48/STM16,OC192/STM64Fibre channel(1,2,4,8,10,16 and 32G)OTU2,OTU2eAny mix of client type

79、s supportedSupported in NCS-55A2(peyto)and NCS-57C3(Eryie)BRKOPT-1005NCS-55A2NCS-57C3NC55-OIP-0272 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveApplying PLE to Storage Area NetworksPLEPLEPLEPLER1R2Fabric AFabric BR1R2PLE PWs over CS-SRPLE PWs over CS-SRSite 1Site 2Tip:C

80、heck out our demo World of SolutionsBRKOPT-100573 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveEasy”Pay-as-you-grow”Insertion for Carriers Customer premisesCentral office/POPR1R2Customer premisesCentral office/POPR1R2Converged packet networkPLE pseudowireNIDCPENIDCPEPLE

81、 hardwareBRKOPT-100574 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveAt Customer Premise or in Central OfficeCentral office/POPR1R2Central office/POPR1R2Converged packet networkPLE pseudowiresNIDCPECPENIDNIDCPENIDCPEPLE hardwareCPENIDNIDCPECustomer premisesCustomer premi

82、sesBRKOPT-100575 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveConnecting a Customer more DetailsOne fiber pair to customer premiseGenerally there is a pair of routers in the CO/POPThe challenge:How to connect the NID to two routers via a single fiber pair?PLENIDCustomer

83、 premiseCentral office/POPR1Shared MPLS networkR21x fiber pairBRKOPT-100576 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive25GE BiDi TransceiversAllows for a 25GE link over a single strand of single-mode fiberTwo SFP28 variantsSFP-10/25G-BX40D-I(1330nm TX)SFP-10/25G-BX40U

84、-I(1270nm TX)Achievable distance18dB power budget40km reach(CD limited)Last mile fibre pair2x SFP-10/25G-BXU-I2x SFP-10/25G-BXD-INo extra passive components needed!BRKOPT-100577 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive10G PLE at Customer Premise0100010G PLE NIDPLE

85、UNIRouter 1Router 2SFP-10/25G-BXU-ISFP-10/25G-BXD-ICustomer premiseCentral officeSFP56Last mile fibre pairCustomernetworkNo extra passive components needed!BRKOPT-100578 ah there is one more thing 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWorking pathProtect pathCS-S

86、R,Dynamic Recovery from Double FailuresSR policyEndpoint ZColor CCandidate pathPreference 100Candidate pathPreference 50Candidate pathPreference 10SR policyEndpoint ZColor CCandidate pathPreference 100Candidate pathPreference 50Candidate pathPreference 10Bi-directional associationFwd SID listrev SID

87、 listFwd SID listrev SID listFwd SID listrev SID listZRestore pathAXXPCEPCEPPCEPBRKOPT-100580Key take aways 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveEVPN-VPWS“basic”ethernet servicesEVPN-VPWSEthernet onlyNo special hardware required“classic”SRScale&simplicityService

88、 overlayUnderlay transportconnection-lessCircuit-style SR(CS-SR)bi-directional path with bandwidth guaranteesEnd-to-end path protection and restorationconnection-orientedCS-SR a new Transport BehaviorBRKOPT-100582 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCS-SR is br

89、inging Order onto“Planet Packet”BRKOPT-100583 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveEVPN-VPWS“basic”ethernet servicesEVPN-VPWSEthernet onlyNo special hardware required“classic”SRScale&simplicityService overlayUnderlay transportconnection-lessCircuit-style SR(CS-S

90、R)bi-directional path with bandwidth guaranteesEnd-to-end path protection and restorationconnection-orientedPLEBit transparentOther payloads:FibreChannel,PLE completes the Service PortfolioBRKOPT-100584 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveFrom Closed Optical to

91、 Open Packet Private LinesBig Routers with standard interfacesdraft-schmutzer-pals-pledraft-schmutzer-spring-cs-sr-policydraft-sidor-pce-circuit-style-pcep-extensionsCost-efficient,standards-based solutionBRKOPT-100585 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveFill o

92、ut your session surveys!Attendees who fill out a minimum of four session surveys and the overall event survey will get Cisco Live-branded socks(while supplies last)!BRKOPT-1005These points help you get on the leaderboard and increase your chances of winning daily and grand prizesAttendees will also

93、earn 100 points in the Cisco Live Challenge for every survey completed.86 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicContinue your educationVisit the Cisco Showcase for related demosBook your one-on-oneMeet the Engineer meetingAttend the interactive education with DevNet,Captur

94、e the Flag,and Walk-in LabsVisit the On-Demand Library for more sessions at www.CiscoL out related sessions by searching for“BRKOPT-”in the session catalog87Thank you#CiscoLive 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive89Gamify your Cisco Live experience!Get points G

95、et points for attending this session!for attending this session!Open the Cisco Events App.Click on Cisco Live Challenge in the side menu.Click on View Your Badges at the top.Click the+at the bottom of the screen and scan the QR code:How:123489 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBRKOPT-1005#CiscoLive