Nokia Lab | LAB 1 Basic |

Introduction 

Hi there!

I'm starting a series of notes focused on Nokia SR-OS labs. It's a part of my preparing for NRSII and SRA.

Some input points:

• Labs contain: tasks and questions, topology, final configs, useful debug commands, and different tips;

• It’s not a lab guide. it’s just my notes which may be useful for someone. I will try to give the right structure of labs and ask reasonable questions. But you can use them as a reference for your own labs. Change everything and have fun :)

• I make more emphasis on structure and coverage than explanation and step-by-step configuration. In my opinion, step-by-step guides or Youtube tutorials are unuseful for exam preparing or learning something. It's looking like entertainment content. So I don't provide answers,  CLI outputs, debug outputs, traffic dumps. I'm sure you should try it yourself.

• I use TiMOS-B-12.0.R6 (It’s temporary)

Topology example

Lab tasks and questions:

• card provisioning
• provision card and MDA
• examine card and MDA status
• examine card and MDA detail info

• ports configuration
• enable ports
• examine ports status
• What is a default port mode?
• What’s a default port MTU for every port mode?

• L3 interface configuration(ipv4 and ipv6)
• create and configure p2p interfaces and configure “system” interface
• check interface status
• What should we configure for ipv6 supporting?
• How do routers generate link-local addresses?
• check connectivity between nodes
• What's the difference between using ping for ipv4 and for ipv6?
• create and configure several loopbacks on every router
• check loopbacks status

• static-route configuration
• configure static-route toward neighbor's “system” interface (ipv4 and ipv6) on every router
• examine route table
• What’s the default route preference for static routes?
• check connectivity between system’s address

• float static-routes
• configure float static-routes toward neighbor's “system” interface on every router
• examine route table
• shutdown primary path and check reachability between “system” interfaces
• enable BFD on float static routes
• check BFD session
• What’s the main advantage of using BFD?

• blackhole static-route
• configure blackhole static route
• examine route table
• What are the main use cases for blackhole routes?

• ECMP and static-routes
• configure static-routes toward neighbor's “system” interface with default preference and enable ECMP (e.g. ecmp 2)
• examine route table and FIB
• How many entries for the target network do you see?
• What are the main use cases of ECMP?

Final configuration

Github project

Useful debug commands

show card {detail}
show mda {detail}
show router interface
show router route-table
show router fib 1
show router bfd session