this is a temporary stage during migrate process .
we have two AS which are two independent AS, Each has exit point to internet, we want to merge AS2 to AS1, and remove AS2 completely at last.
but internet is running in a VPNãin AS2,global routing in AS2 is private address space. we want to establish a MP-EBGP,global routing neighbor , and exchange routing information in internet vpn in AS2 and internet routing within AS1 global routing.
so we want to use inter-as optin B,but we just have one GE interface,so we will create two sub interface, one for MP-EBGP,exchange mpls vpn routing and global routing(this is a lable interface,exchange vpn lable), one for AS2 internet vpn connect to AS1 global routing(this is vrf interface pure IP).
does MP-EBGP support run on sub interfae for GE interface,can we exchange lable informaion and lable forwarding on this sub interface.
we don't exchange full internet routing table ,just local AS and default routing.
another option is that we put mp-ebgp ,lable interface under physical interface. and internet vpn under sub interface.
However, IMO you really don't need this. The way I would do do it is, have the internet vrf in AS2 to connected directly to the global routing table of AS1 (either over a subinterface or main interface). Additionally, if you need to have visibility of AS1 GRT, for example for management purposes, you could add a subinterface connecting AS1 and AS2 global routing tables, in this case you could run eBGP + label if you require to have continuos LSPs between the two ASs.
1. Introduction Internet security is important with the increasing
attacks that are happening every day. Many internet and browsing
security solutions exist, but some are not very easy to use or maybe the
question is how can I enable them? In this referen...
Cisco Software Manager Server API Guide This document describes the
programmatic interfaces, RESTful APIs, which are supported by Cisco
Software Manager Server (CSM Server). Overview CSM Server supports a set
of finite RESTful APIs. The first step to use ...
If you are using Cisco's new linux-based Cisco Software Manager server,
then you probably want to make sure there is a startup service for
it.I'll assume that you've already installed the CSM server on a
systemd-based linux system. The commands given belo...