
Explore Junos routing concepts through practical Gns3 labs covering static routes, aggregates, routing instances, logical systems, and bgp/ospf with ipv6 and ipv4 redistribution for interview and certification prep.
Explore the Junos cli modes, distinguishing operational mode and configuration mode, and learn to navigate the edit hierarchy, commit changes, and manage interface and protocol configurations.
Learn to use Junos show commands to view configuration (show configuration, display set), check version and directory, inspect interfaces and routes, and monitor uptime and system processes.
Learn to safely apply Junos configuration changes using commit check, commit confirm with a timer, and commit to track changes while enabling rollback if needed.
Discover how Junos rollback reverts to a previous configuration and stores up to 49 configurations. Use show compare rollback, perform a rollback, and commit to restore the prior active configuration.
Learn how to factory reset a Junos device to its default configuration via CLI using the run request system zero command, erasing configuration and logs and rebooting into factory defaults.
Learn how to save and rollback Juniper rescue configurations to recover from a corrupted active config, using commands like request system configuration rescue save and rollback.
Learn to create Juniper users in configuration mode by setting a user name, full name, class, and a plaintext password, then commit and log in, noting password encryption after commit.
Learn how Junos distinguishes the active configuration from the candidate copy created when you enter configure, view with show configuration and show compare, then commit to overwrite the active configuration.
Learn how to rename an interface, replace an IP pattern or subnet mask, and copy interface configurations in Juniper Junos to manage network interfaces.
Explore how to use load merge and load patch in Juniper, including saving configurations, rolling back, and committing changes, with examples of loopback creation and IP replacement.
Learn to set up a vmx router by installing the image, configuring RAM, vCPUs, and ten paravirtualized network adapters, then assign the management and gigabit interfaces to verify connectivity.
Set up vqfx with routing and forwarding engines, connect via e1, use e0 for management, ensure ram above 1024 mb, vcpus, 14 adapters, and verify reachability between 169.254.0.2 and 169.254.0.1.
Learn to configure Junos static routes across three routers using directly connected interfaces and next-hop addresses to reach remote subnets, then verify with ping and show route.
Learn how Juniper aggregate routes summarize multiple networks into a single routing table entry, with a route preference of 130, reject or discard behavior, and at least one contributing route.
Explore Junos generate route concepts and how summary routes reduce routing table size. Learn differences between generate route and aggregate routes, including next hop, contributing route, and route preference.
Learn how Juniper ignores martian routes and never installs them in the routing table, and identify and control them with show root motions table and set routing options martians.
Use Junos RIB groups to import routes between customer one and customer two routing instances, sharing vlan ten and vlan twenty networks via virtual routers.
Learn how a static route with a default preference of five and a qualified next hop creates a floating static route that switches to a backup path when primary fails.
Configure a juniper virtual switch to split a network into multiple layer2 domains, enabling bridging and layer3 routing with bridge domains and irb interfaces (vlan ten and vlan 20).
Explore how to set up Juniper logical systems on a single physical router, enabling multiple virtual routers with own interfaces, bandwidth, and routing protocols via tunnel services.
Explore how to create and configure static routes within multiple Juniper logical systems, enabling tunnel services and assigning interfaces, then verify reachability with cross-system pings.
Discover how to partition a physical router into logical systems, create routing instances as virtual routers, assign interfaces, configure IPv4 addresses, and test connectivity with ping.
Configure GRE on Juniper routers by creating tunnel interfaces, assigning physical and loopback IP addresses, and setting tunnel source and destination. Enable OSPF and verify connectivity with ping.
Configure OSPF in Juniper logical systems by creating LS1 and LS2, setting up logical tunnel interfaces, assigning IP addresses, and enabling area zero with neighbor adjacency.
Configure OSPF using routing instances to create virtual routing tables and isolate customer traffic, then assign interfaces and verify with show commands.
Explore configuring a Junos OSPF stub area to block external networks while preserving intra area and inter area routes, using area zero and area one on specific interfaces.
Configure OSPF with backbone area zero and area one, enable an ABR, and apply a totally stubby area to block external and inter-area routes, keeping only intra-area routes.
Learn how not so stubby area redistributes external routes in OSPF using type seven LSAs, which convert to type five LSAs at the ABR, and verify neighbors and route databases.
Learn how OSPF totally NSA blocks inter-area routes with no summaries, redistributes external routes as type seven LSA, and converts them to type five.
Configure OSPF simple authentication on Juniper routers, set interfaces and area zero, apply matching simple password keys, and verify full neighbor establishment with show commands and encrypted config.
Configure OSPF with MD5 authentication on two Juniper routers, define interfaces 192.168.1.1/24 and 192.168.1.2/24, enable OSPF area 0, and set MD5 keys (id 1, value 123) to secure neighbor adjacency.
Learn to configure OSPF hello and dead intervals on two routers, ensure they match to establish a neighbor relationship, then verify with show OSPF neighbor and ping.
Configure OSPF internal summarization on the ABR between area zero and area one, using area range to summarize 192.168.0.0/16 and verify the summarized routes in the OSPF database.
discover how to perform OSPF external route summarization in Juniper by redistributing non-OSPF routes into OSPF, using a not-so-stubby area, and summarizing on an ABR.
Configure BFD for OSPF on Juniper routers, enabling OSPF. Then set BFD liveness parameters (minimum interval 300 ms, multiplier 4, full neighbors) and verify with show commands.
Configure OSPF3 on Juniper routers by assigning IPv6 addresses to loopback and interfaces, and setting the router ID. Advertise remote networks with policy options and verify with show and ping.
Configure bgp across logical systems on Juniper routers by partitioning a physical router into ls1 and ls2, fifteen logical systems, and assigning interfaces, ip addresses, and neighbor relationships.
Configure Juniper IBGP by creating internal BGP groups, setting local and neighbor addresses on interfaces, and advertising networks via a policy option within a single autonomous system.
Learn to configure Juniper eBGP among three routers, establish external and internal BGP neighbors, and advertise networks via a policy export, verified with BGP summary and routes.
Configure BGP local preference on Juniper to influence outbound paths within the same autonomous system, by setting local preference values via policy and applying it to neighbors.
Understand BGP MED and how to influence inbound paths in a three-router autonomous system using policy statements and metrics to advertise routes.
Configure BGP neighbors and AS path prepend to outbound routes, influencing inbound paths, and use policies to advertise networks while prepending the AS number to steer toward the shortest path.
Learn to configure BGP confederation on Juniper devices to prevent loops and avoid full-mesh neighbors by dividing the AS into sub ASes, defining the parent and members.
Learn to configure a Juniper BGP route reflector with clients to avoid the full mesh ibgp, using loopback, cluster identifiers, and policy-based route advertising.
Secure the external BGP neighbor by configuring MD5 authentication between router one and router two, using a hello keychain with a secret and synchronized start time, yielding an established neighbor.
Secure the BGP session with IPsec by creating a bidirectional security association in transport mode using ESP for encryption and authentication between neighbors.
Explore how BGP next hop self in a Juniper network updates routing when routes traverse multiple autonomous systems, using internal and external neighbor policies to advertise 3.3.3/32.
Juniper eBGP using routing instances to isolate customer traffic with virtual router instances, assign interfaces, and configure BGP within each instance, verifying with show bgp summary and ping.
Configure Juniper ebgp multihop to establish an external bgp neighbor session between two routers using loopback addresses, set ttl, and add a static route to reach the remote network.
Configure IS-IS on Juniper to learn how link-state routing advertises state via LSPs, builds topology, neighbor, and routing tables, and supports intra- and inter-area routing.
Configure is-is routing to enable intra area routing with L1 and L2 adjacencies, using different area IDs and unique system IDs.
Configure and verify is-is authentication on Juniper routers by enabling level one authentication, disabling level two, setting a simple hello key, and verifying adjacencies.
Configure is-is routing with l1 and l2 routers, designate a router as the designated router for intra-area routing, adjust priority, and enable interfaces and loopback addresses.
Configure is-is for ipv6 on two routers by assigning ipv6 addresses to physical and loopback interfaces, enabling iso, and establishing ipv6 unicast topology and intra-area routing.
Learn to redistribute routes between IS-IS and OSPF on Juniper devices by configuring a border router with two policies that export and import between IS-IS and OSPF across both interfaces.
Learn to configure IPv6 SLAAC in Juniper by advertising a /64 prefix, enabling auto address configuration, and assigning interfaces to security zones for client reachability.
configure ipv6 router advertisement on juniper to enable slaac and auto configure host ipv6 addresses from the router prefix, using the 48-bit mac to form the interface id.
Configure ipv6 router advertisements in juniper to enable hosts to auto-configure addresses using a /64 prefix and a 48-bit mac-based interface id (eui-64).
Configure IPv6 addresses on Juniper interfaces with a /64, where the interface ID is auto-derived, then create a static route with the next hop and verify connectivity with ping.
Configure IPv6 addresses on Juniper interfaces and establish an IPv6 BGP neighbor to create an EBGP session between two Juniper routers, then verify with show bgp summary and ping.
Configure IPv6 redistribution between RIPng and OSPFv3 across three routers, with Vm2 as the border router implementing two policies to redistribute from RIP to OSPFv3 and back.
Learn to redistribute between OSPF and BGP on Juniper by configuring OSPF on router 1 and BGP on router 2-3, and applying two policy options for OSPF-to-BGP and BGP-to-OSPF.
Discover how to redistribute between RIP and OSPF on Juniper, using a border router with two policies to export RIP to OSPF and OSPF to RIP, and verify connectivity.
Configure PIM dense mode on Juniper routers to flood multicast traffic and prune unused receivers, using bridge domains, IRB gateways, VLAN 100, and trunking.
Configure Juniper PIM sparse mode on routers and enable it on all interfaces. Set a rendezvous point at 2.2.2, register source with ARP, and verify with show commands and OSPF.
Establish an ebgp session between Cisco and Juniper by configuring directly connected interfaces, setting 192.168.1.125/24 on Cisco and 192.168.1.2/24 on Juniper, then configure bgp neighbors and advertise a loopback network.
Learn to establish ibgp neighbor relationships between Cisco and Juniper within the same autonomous system, configure interfaces and loopbacks, advertise networks, and verify with ping and show commands.
Configure PIM dense mode on Juniper and Cisco to enable multicast forwarding using s,g notation. Learn to verify neighbors and routes with show commands and a test ping to 239.1.1.1.
Configure a GRE tunnel between Juniper and Cisco, using a loopback as tunnel source, setting up tunnel interfaces and IP addresses, and enabling OSPF for router communication.
Configure a route reflector between Juniper and Cisco to avoid full mesh and loops, reflecting routes between clients via BGP.
Configure bgp confederation between Juniper and Cisco to prevent loops and avoid full mesh by dividing the as into subareas 11 and 12 and establishing neighbor relationships.
Configure an IPv6 static route between Juniper and Cisco devices, assigning IPv6 addresses to connected interfaces and enabling IPv6 unicast routing. Verify connectivity with ping and by inspecting IPv6 routes.
Configure IPv6 connectivity and BGP between Juniper and Cisco using IPv6 addresses, enable IPv6 unicast routing, set neighbor relationships, and verify with ping and show commands.
Configure a static route between juniper and cisco to reach remote subnets using the correct next-hop addresses. Verify connectivity with ping and show route commands.
Configure vrp between Juniper as master and Cisco as backup, using virtual address 192.168.1.1 and a high priority. Verify with show vrp and test reachability via ping.
This lecture demonstrates configuring MPLS between Cisco and Juniper, using LDP and OSPF, with VRF routing, route distinguishers and VPNv4 BGP to exchange labeled and unlabeled packets.
Learn how a Juniper MPLS backbone uses LDP for label distribution, OSPF routing, and BGP VPNv4 to exchange L3 VPN routes between customer edges and provider edges.
Learn how MPLS uses label push, swap, and pop across core routers, and configure LDP, OSPF, VRFs with route distinguishers and targets to enable MPLS VPNs and AS-override.
This is Selvajegan here. Have a very good understanding of networking Fundamentals.
and having 12 + experience in my Networking Domain with good experience in Cisco and Juniper
Completed my CCNA, CCNP and CCIE. Planning to cover from basic to advanced networking.
Completed my JNCIA and JNCIP Enterprise Switching and Routing Certifications
so will cover all the networking topics including the latest networking technologies.
This Course covers all the Juniper Basics, Juniper Switching and Routing Concepts
and i will be covering all the juniper basics and Juniper Routing and for a better understanding, added
more lab videos
The below course will find the answers for the below questions.
Junos Basics
Junos Rollback and Commit Operations and its benefits
Junos CLI Modes
Usage of Juniper replace, rename and copy commands.
Usage of Load merge and load patch commands
How to factory reset the Juniper Device?
How to Configure s Static Route, Aggregate and Generate Route?
what is Martian Route and how to configure?
What is RIB Groups and How to Configure?
How to Configure EBGP and IBGP ?
what is Route Reflector and How to configure?
What is Confederation and how to configure?
How to Configure OSPF and areas like stubby, totally stubby and NSSA ?
what is ISIS and How to Configure ?