• Cisco SD WAN Notes

    Cisco SD WAN Cisco SD WAN Pillars Secure Elastic Connectivity Provide Secure and Easy to manage connectivity between sites. Application Quality of Experience How can we facilitate a better application quality of experience. For and by Cloud Enablign the cloud transformation for IAAS (AWS , Google) and SAAS App (Office...


  • CCIE Security v5 Notes

    VPN (Policy based) - Key Exchange Protocol GRE Tunnel - Step 1 - Step 2 GRE over IPSec - Tunnel Mode GRE / IPSec - Transport Mode - Configuration - Native IPSec Tunnel [S-VTI] - MGRE (Multipoint GRE) - A Multipoint GRE Full Configuration Snippet DMVPN (Dynamic Multipoint VPN) -...


  • Basic MPLS L3 VPN Configuration Example

    Step1. Configure OSPF between the SP Routers (SP and PE Routers) SP2 interface Loopback0 ip ospf network point-to-point ! router ospf 1 network 3.3.3.0 0.0.0.255 area 0 network 192.168.23.0 0.0.0.255 area 0 network 192.168.34.0 0.0.0.255 area 0 ! SP1 interface Loopback0 ip ospf network point-to-point ! router ospf 1 network...


  • Learning YANG

    Modules YANG Base Types Typedef Type Restrictions Union Statement Common YANG types Grouping Statement Grouping Statement with Refine YANG Data Definitions Leaf Statement Container Statement Leaf-list Statement List Statements Attributes of list an leaf-lists Keys Multiple Keys Leafref Multiple Key Leafref Deref() XPATH Operator Another DEREF() Example YANG Part 2...


  • Cisco NSO Learnings

    NCS Installation This lab exercise was conducted with nso-4.6.linux.x86_64.installer.bin It is advisable to use the same while following this document. Make sure Java 10 (not Open JDK) Installed java -version and ant are installed. Install NCS root@mininet-vm:/home/mininet# chmod +x nso-4.6.linux.x86_64.installer.bin root@mininet-vm:/home/mininet# ./nso-4.6.linux.x86_64.installer.bin /opt/ncs Setup NCS root@mininet-vm:/home/mininet# source /opt/ncs/ncsrc root@mininet-vm:/home/mininet# ncs-setup...