JNCIE-SP study plan

Build a three-router Junos lab (two PE, one RR) and verify iBGP full-mesh versus route reflection convergence with show bgp summary and show route receive-protocol bgp

Configure and compare a BGP confederation against route reflection in the same lab, documenting cluster-id and confederation-id behavior in traceroute output

Manipulate and verify each major BGP attribute (local-preference, MED, AS-path prepend, origin, next-hop) with explicit policy statements and confirm selection order using show route detail

Configure BGP route damping and graceful restart, then trigger a session flap and record damped-path timers and GR helper state

Harden the base platform: user classes, login classes, syslog to a remote host, NTP authentication, and a commit-confirmed configuration rollback test

Scale the BGP lab to at least four peers per router and apply prefix-lists, route-filters, and as-path regex policy to enforce a documented peering policy

Configure BGP-IGP interaction: next-hop resolution, IGP shortcuts, and a labeled-unicast session, and verify recursive next-hop behavior with show route resolution

Tune OSPF (areas, virtual link, stub and NSSA) and IS-IS (levels, wide metrics, LSP flooding) across the lab and confirm adjacency and database synchronization

Redistribute between OSPF, IS-IS, and BGP with route tags and a policy chain, verifying loop prevention with show route protocol output

Diagnose a deliberately broken adjacency (MTU mismatch and area mismatch) using traceoptions and log output

Configure LDP across the core and verify label bindings, LIB/LFIB entries, and PHP behavior with show ldp database and show route table inet.3

Build an RSVP-TE signaled LSP with bandwidth reservation, verify CSPF path selection, and force a secondary path with admin-groups

Configure and test FRR for an LSP, then compare make-before-break behavior against a hard tear-down

Tune LSP parameters: auto-bandwidth, priority and preemption, and load balancing across parallel LSPs

Explain and verify label stacking by pushing a service label over a transport label and reading the resulting stack in show route detail

Configure a full Layer 3 VPN with MP-BGP VPNv4, VRFs, and route targets, verifying the VPN label and route-target community end to end

Build a hub-and-spoke topology with per-VRF route targets and confirm spoke-to-spoke traffic is forced through the hub

Implement VRF route leaking with a shared route-target import/export policy and verify with show route table .inet.0

Configure an extranet VPN where two VRFs share a single customer route and confirm export/import target symmetry

Compare inter-AS option B and option C in the lab and document the label operations each requires at the ASBR

Configure carrier-of-carriers where the customer manages its own internal label space over an inter-AS link and verify label exchange

Build a VPLS instance with BGP multihoming and verify designated-forwarder election and MAC learning

Configure an EVPN-MPLS fabric with Type 2 and Type 3 routes and confirm MAC mobility and aliasing behavior

Extend the EVPN fabric to EVPN-VXLAN and verify the data-plane encapsulation change with show evpn instance extensive

Test a multihoming failover event and record convergence time and MAC flush behavior

Configure IGMP and PIM-SM with a static RP and verify shared-tree to shortest-path-tree switchover using show pim join extensive

Configure PIM-SSM and confirm source-specific joins with no RP dependency

Build an MSDP peering between two PIM domains and verify source discovery

Configure a multicast VPN (draft-rosen) with provider tunnels and verify the MDT and data MDT switchover

Configure mLDP point-to-multipoint LSPs and compare in-band signaling against RSVP-TE P2MP

Configure BFD for OSPF, IS-IS, BGP, and RSVP and measure failure detection time with and without BFD

Enable NSR, NSB, and GRES, then perform a routing-engine switchover and record session and forwarding impact

Build a CoS configuration with classifiers, schedulers, and rewrite rules, and verify queue behavior with show interfaces queue

Write firewall filters for control-plane protection and verify counters increment under a generated traffic load

Perform a Junos software upgrade with a validated alternate boot set and document the rollback procedure

Run a full timed mock lab integrating BGP, MPLS, L3VPN, and multicast under a two-hour limit

Isolate and repair five pre-injected faults using only show, monitor, and traceoptions output

Re-verify the weakest three domains identified by mock scoring and close each gap with a targeted configuration drill

Write a one-page troubleshooting checklist mapping common symptoms to first-check commands across all eight domains