ISP Peering with BGP Traffic Steering Policy – Nokia SR and Cisco XR

Introduction BGP is the glue to interconnect Internet Service Providers (ISPs) all over the world to form the Internet. There are about 15 tier-1 ISPs such as AT&T and Telefonica etc... providing end-to-end Internet traffic transit service for thousands of tier-2 ISPs and large corporations such as Google using the BGP protocol. Among the tier-2 ISPs and … Continue reading ISP Peering with BGP Traffic Steering Policy – Nokia SR and Cisco XR

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Seamless MPLS – Nokia SR and Juniper MX

Since 2000, carriers all over the world have been unifying their multi-technology (e.g., ATM, TDM etc...) WAN networks into a single MPLS-based WAN network to take advantages of the MPLS technology that can support different traffic types with QoS, traffic engineering, and fast network failure restoration of less than 50ms etc... The initial MPLS network … Continue reading Seamless MPLS – Nokia SR and Juniper MX

VPRN (L3VPN) Inter-AS Model C – Nokia SR and Cisco XR

In one of my previous blogs, I showed how to setup VPRN (or L3VPN) among Nokia 7750 and Cisco 7200 routers so that hosts (e.g., PCs) on different IP subnets can communicate over a carrier's shared IP/MPLS network (https://clcnetwork.wordpress.com/2017/03/23/nokia-7750-and-cisco-7200-interop-mpls-vprn-on-gns3/). The control plane of the VPRN PEs uses Multi-Protocol Internal Border Gateway Protocol (MP-iBGP) with vpn-ipv4 … Continue reading VPRN (L3VPN) Inter-AS Model C – Nokia SR and Cisco XR

Residential Broadband TV and IP Multicast – Nokia SR and Juniper MX

For anyone who had attended any broadband networking conferences in 2000s, triple-play and MPLS were the buzzwords at that time similar to today's NFV and SDN. Triple-play means carrying video, voice and data traffic on a common network platform such as MPLS to take advantage of its QoS capability to satisfy the bandwidth, latency and jitter requirements of the traffic. … Continue reading Residential Broadband TV and IP Multicast – Nokia SR and Juniper MX

MPLS Network Services – Traffic Engineering, Resilience and MTU

In the previous blogs, I showed how to interop among Nokia, Cisco and Juniper routers for different MPLS layers 2 and 3 network services such as ePipe, VPLS and VPRN using GNS3 and EVE-NG network emulators on a PC. The blogs demonstrate the flexibility and cost-effectiveness of network service design and interop using a PC. In … Continue reading MPLS Network Services – Traffic Engineering, Resilience and MTU

Docker Container and VM Networking

Many network equipment vendors offer virtualized version of their equipment (i.e., Network Function Virtualization) using Linux KVM. Virtual Machines (VMs) running under KVM run as individual process sharing the same Linux root namespace and thus inter-VM networking is relatively straight forward. Normally, Linux Ethernet bridges or Openvswitches are used to interconnect VMs in a Hypervisor (e.g., KVM) of a x86 PC. Docker containers are lightweight and … Continue reading Docker Container and VM Networking

MPLS VPLS Interop – Nokia 7750 and Juniper MX on EVE-NG

In the previous blogs, I showed how to interop MPLS ePipe and VPRN network services between Nokia 7750 and Cisco 7200 routers on GNS3 (http://www.gns3.com) on a Windows PC. In this blog, I will show how to config and verify Nokia 7750 and Juniper MX routers for MPLS VPLS (Virtual Private LAN Service) network service interop … Continue reading MPLS VPLS Interop – Nokia 7750 and Juniper MX on EVE-NG