Inter-Rack Links On Cisco Asr 9000 Series Nv Edge System - Cisco ASR 9000 Series System Configuration Manual

Inter-Rack Links on Cisco ASR 9000 Series nV Edge System

All combinations of Cisco ASR 9000 Series chassis types such as Cisco ASR 9010, Cisco ASR 9006,
Note
Cisco ASR 9922, and Cisco ASR 9001 are supported. But you can only connect similar chassis types to
create an nV Edge System.
Figure 20: EOBC Links on a Cisco ASR 9000 nV Edge System
As illustrated in the figure, the two physical chasses are linked using a Layer 1 1-Gbps connection, with RSPs
communicating using a Layer 1 or Layer 2 Ethernet out-of-band channel (EOBC) extension to create a single
virtual control plane. Each RSP has 2 EOBC ports and with redundant RSPs there will be 4 connections
between the chassis.
The Cisco Virtualized Network Architecture combines the nV Edge system with the satellite devices to offer
the Satellite nV architecture. For more information on Satellite nV models, see Configuring the Satellite
Network Virtualization (nV) System on the Cisco ASR 9000 Series Router chapter.
Inter-Rack Links on Cisco ASR 9000 Series nV Edge System
The IRL (Inter-Rack Link) connections are required for forwarded traffic going from one chassis out of
interface on the other chassis part of the nV edge system. The IRL has to be 40 and 100 GigE link and L2
EOBC connections are supported in a cluster system. QoS is also not supported. The IRLs are used for
forwarding packets whose ingress and egress interfaces are on separate racks. There can be a maximum of
16 such links between the chassis. All the IRLs must be in the same speed. A minimum of two links are
required and they should be on two separate line cards, for better resiliency in case one line card goes down
due to any fault. See
Note For more information on QoS on IRLs, see Cisco ASR 9000 Series Aggregation Services Router Modular
QoS Configuration Guide.
Cisco ASR 9000 Series Aggregation Services Router nV System Configuration Guide, Release 5.3.x
136
Cisco ASR 9000 nV Edge Architecture
Configuring the nV Edge System on the Cisco ASR 9000 Series Router
for more details.