In this guide, I will show how to implement basic Policy Based Routing on a Layer 3 Switch. Here is the topology we will work on: In this scenario, we have two routers connected to a core switch. We then have some clients in Vlan 30 attached to the switch. Read more…
When using BGP and peering with multiple ISPs at the edge, you can use a feature within BGP that allows you to advertise networks to a neighbour dependent on the existence of a route in the BGP RIB. This is called conditional route advertisement. In this guide, we will be Read more…
When you peer with a Service Provider using BGP. They will likely ask you if you want the full BGP table, a partial table or just a default route. Most devices you have on your companies edge, will not be able to handle the full BGP table. As even just Read more…
When you peer with a Service Provider using BGP. They will likely ask you if you want the full BGP table, a partial table or just a default route. Most devices you have on your companies edge, will not be able to handle the full BGP table. As even just Read more…
VRFs are an excellent tool for Layer 3 separation on a router. Allowing you to separate routing domains and control where traffic can be routed, much like VLANs on a Switch. VRFs are also required for MPLS L3VPN deployments. There may be a requirement for you to leak routes from Read more…
VRFs are an excellent tool for Layer 3 separation on a router. Allowing you to separate routing domains and control where traffic can be routed, much like VLANs on a Switch. VRFs are also required for MPLS L3VPN deployments. There may be a requirement for you to leak routes from Read more…
I am going to walk through how the LSP (Label Switched Path) is found on Cisco devices running LDP and go through a practical demonstration. First, lets look at our topology: In this demonstration we are looking at the path for traffic originating from CE_CUSTA_2 to CE_CUSTA_1. Let’s look at Read more…
You should have heard about BGP when learning about more advanced Networking Topics. It’s commonly called the ‘routing protocol of the internet’. BGP is an amazing tool as it is so versatile. It’s sometimes called slow. However, the feature-set it presents to service providers and large enterprises makes it incredibly Read more…