Archive for 2020

BGP - [Part 22] - BGP CONFDERATION

BGP Confederations - BGP has two mechanism to reduce the number of IBGP peering - Confederations Route Reflector Basically BGP c...

There are 3 IBGP routers. As per Split Horizon rule Router R1 can send a route to R2, and R2 will receive the route from R1 but it will ...

BGP Route Reflector - As per BGP loop avoidance mechanism- Split Horizon Rule (Within IBGP), when a router learn routes from an IBGP pee...

Initially as per our topology, we will add some static routes. Router1(config)#ip route 2.2.2.2 255.255.255.255 192.167.23.2 ...

BGP Peer Groups - Sometimes, some of the BGP neighbors share the exact same configuration, so you will have to type exact same command f...

Without "update-source loopback" Command Configuration - R1 Configuration - interface Loopback1 ip address 1.1.1.1 2...

In EBGP, by default only two directly connected Cisco IOS router can establish a neighbor adjacency. So as per BGP requirement, the exter...

With Next Hop Self Now we will advertise the network for point to point r each-ability and will use "next-hop-self" com...

Before BGP Next Hop Self, we should know the "what is the next hop exactly ?". Next hop is IP to reach the next Autonomous Syste...

BGP uses two mechanism to prevent loops:- Split Horizon Rule As per BGP loop avoidance mechanism- Split Horizon Rule (Within IBGP), wh...

Step - 1 Initially we will create VDC NEXUS(config)# vdc ClientA We can verify via "Show vdc" command NEXUS(conf...

Question - 1 Explain the Control Plane in VDC ? When VDC is created, Nexus OS software will replicate Control plane processes to all...

Question - 1 What are the purpose and role of VDC in Nexus ? Cisco Nexus has a feature of VDC (Virtual Device Context), by which you can...

Default VDC When you will be first login into Nexus 7K Switch, then you will be in Default VDC . When Nexus 7K Series switch is booted f...

S.N. VLAN VRF VDC 1 Basically VLAN divides a single large broadcast domain into multiple smaller broadcas...

S.N. VDC VRF 1 Cisco Nexus has a feature of VDC (Virtual Device Context), by which you can divide a single physi...