I was asked early this week what the difference between configuring a routing policy matching on "traffic-engineering" and configuring one matching on "family traffic-engineering" is. I found this to be a very good question, so I decided to write a...
Category: SERVICE PROVIDER
JNCIE, JNCIP, JNCIS, ROUTING PROTOCOLS, SERVICE PROVIDER
SRX210 network configuration example
ylara@R1# show | display setset version 12.1X44-D35.5set system host-name R1set system time-zone America/New_Yorkset system root-authentication encrypted-password "$1$6gNz/e.a$3PwYertOAmvSXeWEYVkKF1"set system login user ylara uid 2000set system login user ylara class super-userset system login user ylara authentication encrypted-password "$1$tWTTA9FV$WTL22E4Hj2JKLEmbODI8i0"set system services ssh root-login...
ENTERPRISE, JNCIP, JNCIS, SERVICE PROVIDER
I am back + BGP next hop resolution using an LSP
Hello!!! It's been a long time! Life has been crazy in the last 2 years , and I know that is an understatement, and that every single one of you would agree 100% I for instance changed jobs, caught Covid...
CISCO SPCOR, JNCIP, SERVICE PROVIDER
Effect of Route Summarization and LDP updates
While studying for SPCORE I learned about this behavior: And I tested this in Junos using routing instances and lt interfaces: ylara@R1# show | display set relative set R1 instance-type virtual-router set R1 interface lt-0/0/0.1 set R1 interface lo0.1 set...
JNCIA, ROUTING PROTOCOLS, SECURITY, SERVICE PROVIDER
Commit check immediately followed by commit?
I am on mission to prevent people from getting into the habit of making configuration changes in Junos and, when the time comes to activating them, doing a commit check, immediately followed by a commit, if they don't get any...
JNCIE, SERVICE PROVIDER
JNCIE-SP References
NOTE: This is MY list of references to help you get started. It is not a Juniper official list, and it does not mean everything you need to know for the test is covered here. Also, if you find any...
ENTERPRISE, JNCIE, JNCIP, JNCIS, SECURITY, SERVICE PROVIDER
Junos Routing Tables – Part 1
Along the journey of learning Junos, you will run across different routing tables that are used for different purposes. Some tables make sense right away, but others take some digesting. I hope I can answer some questions that you might...
JNCIE, JNCIP, SERVICE PROVIDER
ISIS NARROW and WIDE METRICs
Today we will talk about ISIS narrow metrics and wide metrics, but as always, let me give you some background first. We start by looking at the ISIS PDUs (Packet Data Units), which is the term used to refer to...
ENTERPRISE, JNCIA, JNCIE, JNCIP, JNCIS, SERVICE PROVIDER
OSPF SUMMARY
OSPF PACKET TYPES HELLO PACKETS Adjacencies formation: An adjacency could fail if there is a mismatch of any of the following parameters: MTU (stuck in exstart) Network address Subnet mask Hello interval and/or dead interval Area typeAuthenticationArea idInterface type (broadcast,...
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