a Multi-VRF CE is a device that has multiple VRFs and is shared between different customers and is generally owned and managed by the service provider.
From a technical point of view the multi-VRF CE has a subset of the features of an MPLS PE.
It has the capability to segregate traffic of different customers and to support address overlapping but:
there is no support of MPLS forwarding so there are only VRF access links both to the customer both to the real MPLS PE.
There is no support/need of the MP-BGP for address-family Vpnv4.
The uplink is usually made with an high speed 802.1Q trunk where each vlan carried is mapped to a different VRF/Customer.
The customer benefits are the sharing of the CE device and of the high speed uplink(s).
Scalability is the issue in comparison with a real PE:
a PE with N VRFs can use N+1 interfaces (N access links + 1 MPLS backbone link)
a multi VRF CE with N VRFs needs 2*N interfaces (for each VRF one link towards the customer and one towards the SP PE)
The same is true for the routing relationships: on each VRF a different routing relationship exist with PE (it can be eBGP in VRF or IGP OSPF or EIGRP in VRF) while a real PE has one/two BGP relationships with the RRS and this is enough for all defined VRFs.
Often a Multi-VRF CE is a multilayer switch that can offer high port density at a cheap price.
With XR 4.2.0 the ASR9000 is releasing a new line of hardware models. This amongst others is the RSP440, the next generation RSP with faster switch fabric along with Typhoon based Linecards, the next generation network processor.
The Cisco EPN system incorporates a network architecture designed to consolidate multiples services on a single Multiprotocol Label Switching (MPLS) transport network. This network is designed primarily based on...
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?