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Cisco SDA Part IX – need for duplicate IPs on fabric borders
In this post, we look at why SD-Access borders have the anycast IP addresses configured as loopback addresses.
Cisco SDA Part VIII – DHCP challenges in SDA
In this post, we look at various DHCP challenges in Cisco’s SD-Access fabric and how it is solved.
Cisco SDA Part VII – multi-instance LISP
In this post, we look at multi-instance LISP, which is another core construct for Cisco’s SD-Access.
Cisco SDA Part V – LISP mobility – roaming hosts
In this post, we look at an actual LISP host mobility event and what happens behind the scenes to make this work.
Cisco SDA Part VI – LISP mobility – Solicit Map Requests (SMRs)
In this post, we look at SMRs and how these are essential for a host mobility event, within the LISP architecture.
Cisco SDA Part IV – LISP mobility – dynamic EIDs
In this post, we look at LISP dynamic EID - a core construct of LISP host mobility.
Cisco SDA Part III – LISP and non-LISP sites
In this post, we look at how a LISP site talks to non-LISP sites.
Cisco SDA Part II – basic LISP configuration and operation
In this post, we introduce basic LISP configuration and operation using packet captures and packet walks.
Cisco SDA Part I – Introduction to LISP and its basic terminology
This is a new series that will cover Cisco’s Software Defined Access architecture/solution over time. There are several moving pieces to this - in this post, we’re going to start with a key component, which is LISP.
Cumulus Part X – VXLAN EVPN and MLAG
In this post, we take a look at the interaction of MLAG with an EVPN based VXLAN fabric on Cumulus Linux.
Cumulus Part IX – Understanding VXLAN EVPN Route-Target control
In this post, we look at how route-targets extended communities can be used to control VXLAN BGP EVPN routes in Cumulus Linux.
Cumulus Basics Part VIII – VXLAN symmetric routing and multi-tenancy
In this post, we look at VXLAN routing with symmetric IRB and multi-tenancy on Cumulus Linux.
Cumulus Basics Part VII – VXLAN routing – asymmetric IRB
In this post, we look at VXLAN routing with asymmetric IRB on Cumulus Linux.
Cumulus Basics Part VI – VXLAN L2VNIs with BGP EVPN
In this post, we introduce BGP EVPN and a VXLAN fabric in Cumulus Linux, with L2VNIs.
Cumulus Basics Part V – BGP unnumbered
In this post, we’ll look at BGP unnumbered on Cumulus Linux.
Cumulus Basics Part IV – BGP introduction
In this post, we introduce BGP on Cumulus Linux.
Cumulus Basics Part III – static routing and OSPF
In this post, we will look at an introduction to routing on Cumulus Linux, with static routing and OSPF.
Cumulus Basics Part II – bridging
This second blog on Cumulus looks at basic layer2 functionality in Cumulus Linux.
Cumulus Basics Part I – navigating the OS
This first blog on Cumulus introduces the reader to the basics of the operating system and Cumulus' NCLU.