Cisco ASR 1000 Series Software Configuration Guide

Configuring the Virtual Service Engine Interface
Configuration of the Cisco WebEx Node SPA begins with the setup of a virtual service engine interface. This
Cisco IOS XE virtual interface is created to allow services running on the Cisco WebEx Node SPA to
communicate through the Cisco ASR 1000 Series Router with the Internet. The interface simulates a 2.5-GB
Ethernet interface and facilitates the connection between the Cisco WebEx Data Center and Cisco WebEx
clients.
A service-engine interface on the Cisco WebEx Node SPA has two IP addresses:
• Router-side IP address—Configured with the ip address command. The IP address on the router side
acts like a gateway to the WebEx services running on the SPA side.
• Internal SPA interface IP address—Configured with the service-engine ip address command.
Virtual Service-Engine Interface Configuration Guidelines
To successfully configure the virtual service-engine interface, complete the following guidelines:
•
The Network Address Translation (NAT) must be configured to convert the private address of the service
engine to the public address.
•
The router-side IP address must be configured using the ip address command.
•
The service-engine IP address must be on the same subnet as the router-side IP address for the
service-engine interface (configured using the ip address command.)
•
The service-engine ip address command must be configured before you configure the service-engine
default-gateway command.
•
The service-engine default-gateway IP address must match the router-side IP address.
Before you can configure the Cisco WebEx Node SPA, you must shut down the service-engine interface
using the shutdown interface configuration command. To activate the service-engine interface, use the
no shutdown command.
Note
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
358 OL-14127-17
Configuring the Cisco WebEx Node for the ASR 1000 Series Aggregation Services Routers
Configuring the Virtual Service Engine Interface

Cisco ASR 1000 Series Specifications

General

Brand	Cisco
Model	ASR 1000 Series
Category	Network Router
Language	English