Hello
i need to explain my Network Operators how MPLS VPN Works.
but im at no way a good teacher, also i have learnt this stuff with books and labs.
so my first try was realy bad… ( i tried to explain how a VPNv4 Prefix is formed with the 32bit IPv4 Adress and the 64bits of the RD. but i forgot first of to explain them what a RD is…)
How would you explain this, in a easy way without confusing them with BGP MP capabilites,
vpnv4 Prefixes and so on.
like explain this question to someone with no deep know how of bgp.
- how does a route in a VRF go over the network to the other site VRF. (with RR in mind)
as for now they got how LDP Works. and how traffic is lable forwarded.
please help me… give me some hints.
The CCIE Candidate’s Introduction to MPLS L3VPN Networks - BRKCCIE-3345
Really simplified version: Routes are selected/filtered based on communities. VPN routes don’t have a “traditional” next-hop, instead using an MPLS Label.
Draw a diagram with two routers.
Draw a link between it.
Give the link IP addresses.
Draw an OSPF adjacency.
Add loopbacks.
Draw the iBGP adjacency.
Draw a customer network behind it.
Add it in layers to show the interactions. Found that the best way to explain it.
iBGP between loopbacks
+---------------------------------------------+
L2 Adjacency OSPF
lo0 lo0
+----------------------------------+
+------+ +------+
| | | |
| | | |
| | | |
+------+ +------+
Search Google for the juniper book “mpls for enterprise engineers”.
Get them to read that for homework. Job done
Thanks to you, i could do it.
Thank you, but that is not the point… i could also giv them the “MPLS Fundamentals” book from Cisco Press, which i used. but this are like 800 pages of MPLS.
Mpls for ee book is 70 pages mate. They can read it in a day