CCIE SPv5.1 Labs
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  • Intro
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  • MVPN
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    • Topology
    • Profile 0
    • Profile 0 with data MDTs
    • Profile 1
    • Profile 1 w/ Redundant Roots
    • Profile 1 with data MDTs
    • Profile 6
    • Profile 7
    • Profile 3
    • Profile 3 with S-PMSI
    • Profile 11
    • Profile 11 with S-PMSI
    • Profile 11 w/ Receiver-only Sites
    • Profile 9 with S-PMSI
    • Profile 12
    • Profile 13
    • UMH (Upstream Multicast Hop) Challenge
    • Profile 13 w/ Configuration Knobs
    • Profile 13 w/ PE RP
    • Profile 12 w/ PE Anycast RP
    • Profile 14 (Partitioned MDT)
    • Profile 14 with Extranet option #1
    • Profile 14 with Extranet option #2
    • Profile 14 w/ IPv6
    • Profile 17
    • Profile 19
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  • MVPN SR
    • Start
    • Topology
    • Profile 27
    • Profile 27 w/ Constraints
    • Profile 27 w/ FRR
    • Profile 28
    • Profile 28 w/ Constraints and FRR
    • Profile 28 w/ Data MDTs
    • Profile 29
  • Segment Routing
    • Start
    • Topology
    • Basic SR with ISIS
    • Basic SR with OSPF
    • SRGB Modifcation
    • SR with ExpNull
    • SR Anycast SID
    • SR Adjacency SID
    • SR LAN Adjacency SID (Walkthrough)
    • SR and RSVP-TE interaction
    • SR basic inter-area with ISIS
    • SR basic inter-area with OSPF
    • SR basic inter-IGP (redistribution)
    • SR basic inter-AS using BGP
    • SR BGP Data Center (eBGP)
    • SR BGP Data Center (iBGP)
    • LFA
    • LFA Tiebreakers (ISIS)
    • LFA Tiebreakers (OSPF)
    • Remote LFA
    • RLFA Tiebreakers?
    • TI-LFA
    • Remote LFA or TILFA?
    • TI-LFA Node Protection
    • TI-LFA SRLG Protection
    • TI-LFA Protection Priorities (ISIS)
    • TI-LFA Protection Priorities (OSPF)
    • Microloop Avoidance
    • SR/LDP Interworking
    • SR/LDP SRMS OSPF Inter-Area
    • SR/LDP Design Challenge #1
    • SR/LDP Design Challenge #2
    • Migrate LDP to SR (ISIS)
    • OAM with SR
    • SR-MPLS using IPv6
    • Basic SR-TE with AS
    • Basic SR-TE with AS and ODN
    • SR-TE with AS Primary/Secondary Paths
    • SR-TE Dynamic Policies
    • SR-TE Dynamic Policy with Margin
    • SR-TE Explicit Paths
    • SR-TE Disjoint Planes using Anycast SIDs
    • SR-TE Flex-Algo w/ Latency
    • SR-TE Flex-Algo w/ Affinity
    • SR-TE Disjoint Planes using Flex-Algo
    • SR-TE BSIDs
    • SR-TE RSVP-TE Stitching
    • SR-TE Autoroute Include
    • SR inter-IGP using PCE
    • SR-TE PCC Features
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    • SR-TE PCE Redundancy
    • SR-TE PCE Redundancy w/ Sync
    • SR-TE Basic BGP EPE
    • SR-TE BGP EPE for Unified MPLS
    • SR-TE Disjoint Paths
    • SR Converged SDN Transport Challenge
    • SR OAM DPM
    • SR OAM Tools
    • Performance-Measurement (Interface Delay)
  • EVPN
    • Start
    • Topology
    • EVPN VPWS
    • EVPN VPWS Multihomed
    • EVPN VPWS Multihomed Single-Active
    • Basic Single-homed EVPN E-LAN
    • EVPN E-LAN Service Label Allocation
    • EVPN E-LAN Ethernet Tag
    • EVPN E-LAN Multihomed
    • EVPN E-LAN on XRv
    • EVPN IRB
    • EVPN-VPWS Multihomed IOS-XR (All-Active)
    • EVPN-VPWS Multihomed IOS-XR (Port-Active)
    • EVPN-VPWS Multihomed IOS-XR (Single-Active)
    • EVPN-VPWS Multihomed IOS-XR (Non-Bundle)
    • PBB-EVPN (Informational)
  • VPWS
    • Start
    • Topology
    • Basic VPWS
    • VPWS with Tag Manipulation
    • Redundant VPWS
    • Redundant VPWS (IOS-XR)
    • VPWS with PW interfaces
    • Manual VPWS
    • VPWS with Sequencing
    • Pseudowire Logging
    • VPWS with FAT-PW
    • MS-PS (Pseudowire stitching)
    • VPWS with BGP AD
  • VPLS
    • Start
    • Topology
    • Basic VPLS with LDP
    • VPLS with LDP and BGP
    • VPLS with BGP only
    • Hub and Spoke VPLS
    • Tunnel L2 Protocols over VPLS
    • Basic H-VPLS
    • H-VPLS with BGP
    • H-VPLS with QinQ
    • H-VPLS with Redundancy
    • VPLS with Routing
    • VPLS MAC Protection
    • Basic E-TREE
    • VPLS with LDP/BGP-AD and XRv RR
    • VPLS with BGP and XRv RR
    • VPLS with Storm Control
  • BGP Multi-Homing (XE)
    • Start
    • Topology
    • Lab1 ECMP
    • Lab2 UCMP
    • Lab3 Backup Path
    • Lab4 Shadow Session
    • Lab5 Shadow RR
    • Lab6 RR with Add-Path
    • Lab7 MPLS + Add Path ECMP
    • Lab8 MPLS + Shadow RR
    • Lab9 MPLS + RDs + UCMP
  • BGP Multi-Homing (XR)
    • Start
    • Topology
    • Lab1 ECMP
    • Lab2 UCMP
    • Lab3 Backup Path
    • Lab4 “Shadow Session”
    • Lab5 “Shadow RR”
    • Lab6 RR with Add-Path
    • Lab7 MPLS + Add Path ECMP
    • Lab8 MPLS + “Shadow RR”
    • Lab9 MPLS + RDs + UCMP
    • Lab10 MPLS + Same RD + Add-Path + UCMP
    • Lab11 MPLS + Same RD + Add-Path + Repair Path
  • BGP
    • Start
    • Conditional Advertisement
    • Aggregation and Deaggregation
    • Local AS
    • BGP QoS Policy Propagation
    • Non-Optimal eBGP Routing
    • Multihomed Enterprise Challenge
    • Provider Communities
    • Destination-Based RTBH
    • Destination-Based RTBH (Community-Based)
    • Source-Based RTBH
    • Source-Based RTBH (Community-Based)
    • Multihomed Enterprise Challenge (XRv)
    • Provider Communities (XRv)
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  1. Segment Routing

SR/LDP Design Challenge #1

PreviousSR/LDP SRMS OSPF Inter-AreaNextSR/LDP Design Challenge #2

Last updated 20 days ago

An operator wants to build their network so that the core uses SR-only, and the edges use LDP-only. The edges are running on older hardware that does not support SR. Is an SRMS needed in this case?

Answer

Yes, an SRMS mapping server is needed within the SR-only domain. An LSP that has a destination of an LDP-only node must have an SR prefix SID within the SR-only domain. So the SRMS will advertise mappings for all LDP-only nodes.