Virtualization Satellite Mode on the Cisco ASR 903 Router
This document describes how to enable Network Virtualization
Satellite Mode on the Cisco ASR 903 Router and contains the following sections:
The Satellite Network
Virtualization (nV) feature allows you to configure remote routers to act as
remote virtual switch interfaces on the ASR 9000. IOS XE Release 3.8 introduces
support for nV mode on the Cisco ASR 903 Router, allowing it to act as a
satellite nV device, controlled by the ASR 9000 using the IOS XR CLI.
The following limitations
apply when enabling nV satellite mode on the Cisco ASR 903 Router.
An in-service software upgrade (ISSU) is not supported while the
router is acting as an nV satellite device.
RSP redundancy is not supported while the router is acting as a
satellite nV device.
Online Insertion and Removal (OIR) of interface modules (IMs) is
not supported when the router is operating in nV satellite mode.
Supported connections to the satellite host include
Gigabit Ethernet interfaces
Ethernet transported over optical interfaces
10 Gigabit Ethernet interfaces (slots 1 and 2 only)
Other connection types are not supported.
Local switching on the satellite device is not supported. The
packets are always sent to the host for layer 2 and layer 3 switching.
Network clocking is not supported when the router is operating
in nV satellite mode.
The system boots in nV mode and is detectable by the nV host.
You can use the show nv satellite status command to verify the image version.
Removing a Satellite Image from the Cisco ASR 903 Router
Restoring the Cisco ASR 903 Router to a normal IOS XE image requires that you load an image in ROMmon mode using trivial file transfer protocol (TFTP). For instructions on how to remove a satellite image from the Cisco ASR 903 Router, please contact Cisco support.
Satellite Mode Sequence
When booting to a satellite nV image, the
Cisco ASR 903 Router
enables Ethernet ports in IEEE mode.
enables inter-chassis links (IC links).
uses Satellite Discovery and Control (SDAC) to establish a
connection to the host nV device.
establishes a control path between the host nV device and the
Cisco ASR 903 Router.