22-4
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
Chapter 22 Configuring the Cisco WebEx Node for ASR 1000 Series
Configuration Tasks
Completing the Cisco WebEx Node SPA Configuration Prerequisites
Prior to configuring the Cisco WebEx Node SPA, you must ensure that the following tasks are
completed:
• A Cisco IOS XE software image is loaded on your Cisco ASR 1000 Series Router that is compatible
with the Cisco WebEx Node SPA. The Cisco WebEx Node SPA provides K9 encryption, and you
must also download and install the optional “sipspawmak9” sub-package.
For more information about Cisco IOS XE package compatibility and installation instructions, see
the
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide.
• A DNS entry for the IP address is assigned to each Cisco WebEx Node SPA.
• An IP address is assigned for the Cisco IOS XE interface configuration on the Cisco ASR 1000
Series Router side.
• An IP address is also assigned for the internal interface configuration on the Cisco WebEx Node SPA
side.
• A default gateway IP address is assigned for the SPA internal interface.
• The IP address that is assigned for the Cisco IOS XE interface configuration on the Cisco ASR 1000
Series Router side and the IP address that is assigned for the internal interface configuration on the
Cisco WebEx Node SPA side must be on the same subnet.
• Verify that certain WebEx Data Center servers (such as the Cisco WebEx Data Center SSL gateway
and the Cisco WebEx Node Management server) are reachable and not blocked from access by the
Cisco ASR 1000 Series Router. If access to these servers is blocked, then the Cisco WebEx Node
SPA might not activate properly.
Configuration Tasks
This section describes how to configure the Cisco WebEx Node for ASR 1000 Series and includes
information about verifying the configuration.
It includes the following topics:
• Specifying the Service Engine Interface Address on the Cisco WebEx Node SPA, page 22-4
(Required)
• Configuring the Virtual Service Engine Interface, page 22-5 (Required)
• Saving the Configuration, page 22-7 (Required)
• Shutting Down and Removing the Cisco WebEx Node SPA, page 22-8 (Optional)
Specifying the Service Engine Interface Address on the Cisco WebEx Node
SPA
To configure or monitor SPA interfaces, you need to specify the physical location of the SIP, SPA, and
interface in the CLI. The interface address format is slot/subslot/port, where:
• slot—Specifies the chassis slot number in the Cisco ASR 1000 Series Routers where the SIP is
installed.
• subslot—Specifies the subslot of the SIP where the SPA is installed.