Month: June 2026
Internet Router Redundancy Example 1
We have a topology above. I will tell about it from left to right. I have a PC. Its gateway is R0 that has 50.0.0.0/24 subnet and R0 do SNAT from fa0/1 (inside) to fa0/0 (outside). R0 has a default route to virtual address of 10.130.0.1. R1 is VRRP master and R2 is VRRP backup.…
Read MoreJuniper QFX Multichassis Link Aggregation Example
In this post, I will show you a basic MC-LAG topology and configure it on Juniper devices. Here is the topology as below; Here are the QFX configurations; There are some points to be carefull. 1- We use same service-id on both QFX switches2- We use MC-AE mode active-active on both QFX switches. 3- QFX1’s…
Read MoreBGP 001 – Route Advertisement from Indirect Sources
We have a topology like below. R1 and R2 have BGP neighborship. R1 have 1 static route to R3 and 1 OSPF route to R4. We want to see the prefixes on R2. Configurations on R1 like below; I want to talk about ALC_001 and MAP_001. In the neighborship between R1 and R4, I also…
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