Configuring the Satellite Network Virtualization (nV) System on the Cisco ASR 9000 Series Router
Overview of Satellite nV Switching System
HC-709
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide
OL-26061-03
This type of architecture can be realized in a carrier Ethernet transport network, with the satellite
switches used as either access switches, or pre-aggregation and aggregation switches. These switches
feed into an edge router, such as the Cisco ASR 9000 Series Router or Cisco CRS-3 Router where more
advanced L2, L3 services are provisioned.
You can also utilize this model in a FTTB (Fiber To The Business) network application, where business
internet and VPN services are offered on a commercial basis. Further, it can also be used in other
networks, such as wireless/ RAN backhaul aggregation networks.
Benefits of Satellite nV System
The Cisco ASR 9000 Series satellite nV system offers these benefits:
1. Extended port scalability and density - You can create a virtual line card with more than 400
physical Gigabit Ethernet ports. There is a significant increase of ethernet port density in the
resulting logical Cisco ASR 9000 Series Router. For example, a single 24-port TenGigE line card
on the Cisco ASR 9000 Series Router could integrate up to 24 satellite switches each with 44 GigE
ports; this results in an effective port density of 1056 Gigabit Ethernet ports for each Cisco ASR
9000 Series line card slot. In other configurations, even higher port density can be achieved. This is
beneficial because the Cisco ASR 9000 Series Router has a per-slot non blocking capacity of up to
400 Gbps (with appropriate RSPs) and there is no other way of physically fitting hundreds of gigabit
ethernet ports/ SFPs on the face plate of a single Cisco ASR 9000 Series line card. As a result, in
order to utilize the full capacity of an Cisco ASR 9000 Series line card, it is necessary to physically
separate out the ethernet ports, while maintaining logical management control. This would appear
as if all ports were physically on a single large line card of the Cisco ASR 9000 Series Router.
2. Reduced cost - All the edge-routing capabilities and application features of the Cisco IOS XR
software are available on low cost access switches.
3. Reduced operating expense - You can seamlessly upgrade software images, and also manage the
chassis and services from a common point. This includes a single logical router view, single point
of applying CLI or XML interface for the entire system of switches, a single point of monitoring the
entire system of switches and a single point of image management and software upgrades for the
entire system.
4. Enhanced feature consistency - All the features on the regular GigE ports of
Cisco ASR 9000 Series Router are also available on the access ports of a satellite access switch in
a functionally identical and consistent manner. The typical application of a satellite system would
be in the access and aggregation layers of a network. By integrating the access switches along with
the aggregation or core switch, you can ensure that there are no feature gaps between the access
switch and the aggregation or core switch. All features, such as carrier ethernet features, QoS and
OAM, function consistently, from access to core, because of this integrated approach.
5. Improved feature velocity - With the satellite solution, every feature that is implemented on the
Cisco ASR9000 Series Router becomes instantly available at the same time in the access switch,
resulting in an ideal feature velocity for the edge switch.
6. Better resiliency - The nV satellite solution enables better multi-chassis resiliency, as well as better
end-to-end QoS. For more information on QoS capabilities, see Cisco ASR 9000 Series Aggregation
Services Router QoS Configuration Guide.
To Next Page
Loading...
