Tag: CISCO

EDGE Data centers gearing up for the future : A case study with CDN, Netflix and Cisco.

Introduction The essence of today’s technological progress is the explosive growth in data transfer, with global internet traffic projected to double within the next 3–5 years. Almost daily, we hear about new data centers being deployed — from industry giants to smaller players — all investing heavily to expand capacity. But simply building more infrastructure… Read More EDGE Data centers gearing up for the future : A case study with CDN, Netflix and Cisco.

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Application Centric Networking has a new address in Cisco Data Center.

Coming from the traditional routing and switching world, stepping into Cisco ACI felt like entering an entirely new universe. If you’ve ever worked with ACI, you probably know exactly what I mean. The questions that always lingered in my mind were: Why application-centric networking? Why is it important? And how is it achieved? In the… Read More Application Centric Networking has a new address in Cisco Data Center.

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Cisco Nexus(NXOS) : Seamless handoff (Interworking) between BGP EVPN based VxLAN fabric and SR-MPLS network.

Introduction Segment Routing has now gained significant traction, with many greenfield ISP core deployments leaning towards SR-MPLS or even SRv6. While traditional MPLS networks are still in operation, data centers can no longer avoid interfacing with SR-MPLS-based transport networks. One of the key advantages of adopting an SR-MPLS handoff — instead of a pure Inter-AS… Read More Cisco Nexus(NXOS) : Seamless handoff (Interworking) between BGP EVPN based VxLAN fabric and SR-MPLS network.

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Cisco Nexus DC : Seamless Handoff between BGP EVPN based DC fabric to SRv6 based transport.

INTRODUCTION TO SRv6 The SP core networking landscape has undergone significant transformation—from early forwarding models based on ATM and Frame Relay, to MPLS label switching, to SR-MPLS source routing, and now to native IPv6-based forwarding with SRv6. Historically, routing was seen as lower performance compared to switching; however, SRv6 changes this narrative. It combines routing… Read More Cisco Nexus DC : Seamless Handoff between BGP EVPN based DC fabric to SRv6 based transport.

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Cisco ACI: Port VLAN , how to configure same encap VLAN for two EPGs.

Recently in ACI we have come across a situation where the same vlan has to be configured on two ports in two different EPG. Generally if we try to configure a same encap vlan for two different EPGs(static binding) we get error like below. But certainly there can be some use cases where we need… Read More Cisco ACI: Port VLAN , how to configure same encap VLAN for two EPGs.

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GNS3 LAB Cisco : Nexus 9000v Control-plane based VxLAN BGP-EVPN Bridging Config and Verification.

I wrote few blogs on BGP EVPN and also on VxLAN earlier. My previous blogs were focused on IOS-XE and IOS-XR devices, recently I have started my Data Center journey and hence I wanted to do some labs on Nexus devices as well and what better place than GNS3 for this ? I got to… Read More GNS3 LAB Cisco : Nexus 9000v Control-plane based VxLAN BGP-EVPN Bridging Config and Verification.

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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.

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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

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