This is a continuation from Part 1 9. ACME VPN RR’s Design: So the current total number of PE’s dedicated for VPN functionality is around 400 (2 PE’s in each POP x 200). A full iBGP mesh between 400 PE’s comes around 79,800 sessions ((400×399) /2). By introducing two VPN RR’s each PE will have only two iBGP sessions […]
The post BGP RR Design – Part 2 appeared first on Packet Pushers Podcast and was written by Diptanshu Singh.
1. Introduction In this post we will be looking at large scale RR design by using a fictional ISP ACME as a reference. As usual, I am assuming that the reader has familiarity with BGP and basic RR concepts. 2. Setting the Stage ACME is a communications company providing communications and data services to residential, business, governmental and wholesale customers. […]
The post BGP RR Design – Part 1 appeared first on Packet Pushers Podcast and was written by Diptanshu Singh.
Original content from Roger's CCIE Blog Tracking the journey towards getting the ultimate Cisco Certification. The Routing & Switching Lab Exam
The Cisco Access Point Default Password is – Cisco / Cisco You could probably have guessed that, but if you are configuring a cisco wireless access point out of the box for the first time you are going to want to know the default password and if you are reading this then you haven’t been... [Read More]
Post taken from CCIE Blog
Original post Cisco Access Point Default Password
Since I posted this article “Is VxLAN a DCI solution for LAN extension ?” clarifying why Multicast-based VxLAN was not suitable to offer a viable DCI solution, the DCI market (Data Center Interconnect) has become a buzz of activity around the evolution of VxLAN based on Control Plane (CP).
In this network overlay context, the Control Plane objective is to leverage Unicast transport while processing VTEP and host discovery and distribution processes. This method significantly reduces flooding for Unknown Unicast traffic within and across the fabrics.
The VxLAN protocol (RFC 7348) is aimed at carrying a virtualized Layer 2 network tunnel established over an IP network, hence from a network overlay point of view there is no restriction to transport a Layer 2 frame over an IP network, because that’s what the network overlays offers.
Consequently a question as previously discussed with MCAST-only transport in regard to a new DCI alternative solution, comes back again;
Consequently, this noise requires a clarification on how reliable a DCI solution can be when based on VxLAN Unicast transport using a Control Continue reading
cumulus@server1:~$ while true; do iperf -c 10.4.2.2 -t 20; sleep 20; done
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Client connecting to 10.4.2.2, TCP port Continue reading
