GNS3 LAB Cisco : EVPN (BGP/MPLS) IRB (integrated routing and bridging) Configuration and Verification.

So far we have seen EVPN single home and EVPN multihome setup and configuration with Cisco csr1000v router. You can find the links for those posts below. EVPN -Single home GNS3 LAB Cisco : BGP-EVPN Single Home Configuration EVPN -Multi homeGNS3 Lab Cisco : EVPN Multihome Concept and Configurations Note : As per Cisco docs… Read More GNS3 LAB Cisco : EVPN (BGP/MPLS) IRB (integrated routing and bridging) Configuration and Verification.

GNS3 Lab Cisco : EVPN Multihome Concept and Configurations

Introduction: This article is focused on multi-homed EVPN setup that I have prepared in below network topology. One of the biggest advantage with EVPN that we get is multi-homing with it. Earlier with VPLS we did not have multi-homing integrated with the protocol. With multi-homing we can have one CE connected to two PE router… Read More GNS3 Lab Cisco : EVPN Multihome Concept and Configurations

GNS3-Cisco Configuration: Inter-vrf Routing with MP-BGP

Address-Family in BGP has given immense power to bgp, the most important thing is simplicity of the solutions. One example of this is inter-vrf routing with the help of address family. Following is the configuration. Tools : GNS3, Router: IOSv Router. In the above diag Cus1 and Cus2 are two separate vrfs on PE router.… Read More GNS3-Cisco Configuration: Inter-vrf Routing with MP-BGP

Cisco ASR 903 Series router ISSU upgrade

Cisco ASR900 series is a popular platform in service provider domain. If you remember the famous 7600 platform,  ASR 900(ASR903/907and 914) is next generation to it. Majorly these devices are classified as SP access platforms. ASR 903 routers are known for high speed data plane(forwarding) because of the ASIC based data plane architecture. In this… Read More Cisco ASR 903 Series router ISSU upgrade

Question : Why all other areas must be connected to ospf area 0(backbone)?

What I have read and know till now is since ospf behaves like distance vector protocol for inter area communication hence it is vulnerable to routing loops that’s why all the ABRs must be connected to ospf area0 and interarea communication happens through backbone area ….but you may ask that how distance vector in inter… Read More Question : Why all other areas must be connected to ospf area 0(backbone)?