Separation of Duties: Control Plane & Data Plane: Part 1

17th Jul 2022

Introduction In traditional networking Inside our router or multilayer switch there is a separation of duties. In order to fully understand these different duties one needs to understand, what happens when a packet enters our ingress and exits the egress interfaces? We must also get a dynamic overview between forwarding and routing. However before we … More Separation of Duties: Control Plane & Data Plane: Part 1

How to allow CLI (SSH & Telnet access) on NetGear Prosafe smart switches

26th Jun 2022

I manage and look after the entire infrastructure at a small higher education campus all by my self. This includes the network Infrastructure, server admin and end-point support. Our network devices are diverse and it’s a complete multivendor environment. It’s really important for me to automate tasks to save on crucial time. Nearly all our … More How to allow CLI (SSH & Telnet access) on NetGear Prosafe smart switches

BGP: Create non-existent entry in CP RIB to advertise entire subnet.

13th Aug 2022

Introduction The way BGP advertises routes to peers is via network command. However unlike other IGP(e.g OSPF , EIGRP etc) which summerises the entire network. For example to advertise and summarise an entire /16 network in an IGP (ospf in our example) you would use the following network command: 255.255.255.255 – 255.255.0.0 = 0.0.255.255 RouterA(config-router): … More BGP: Create non-existent entry in CP RIB to advertise entire subnet.

Control Plane Routing: PBR Policy Based Routing Part 1

24th Jul 2022

Even though the control plane isn’t effective at forwarding, can it still used to route? Under special circumstances Yes! such as control plane policing(QoS). A better example and my favourite is PBR. Let’s dive into a CCIE EL topic- PBR(Policy Based Routing) All forwarding is done by data plane however, under some circumstances, the control … More Control Plane Routing: PBR Policy Based Routing Part 1