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Chapter 14
Managing the SCMP
SCMP Peer Devices
An SCMP peer device is a Cisco device running IOS with the ISG module enabled. The SCE platform
supports the ability to communicate with several SCMP peer devices at the same time. However, each
peer device manages its own subscribers and the corresponding subscriber network IDs. The SCE
platform recognizes which subscribers belong to which peer device. There are two mechanisms that
accomplish this:
•
•
One SCE platform supports a maximum of 20 SCMP peer devices.
Connection Management
The SCMP attempts to maintain an open connection to each peer device.
Figure 14-5
Figure 14-5
Keep-alive timeout
Keep-alive timeout
The loss-of-sync timeout prevents the SCE platform from retaining sessions that are obsolete and whose
identity-keys have been replaced or moved to other sessions thus miss-classification risk is limited.
OL-7827-12
Login operation
Each SCMP peer device is assigned a unique ID called the Manager-Id. This ID is attached to each
subscriber from the moment it is created in the subscriber database, based on the SCMP peer that
logged-in the subscriber.
Anonymous groups
An anonymous group is a specified IP range, possibly assigned a subscriber template (see
Anonymous Groups and Subscriber Templates, page
SCMP associates each SCMP peer device with at least one anonymous group. SCMP generates
subscribers for this anonymous group when it detects traffic from the SCMP peer device that is not
mapped to any subscriber. SCMP assigns the SCMP peer manager-Id to this generated
anonymous-subscriber. If you have assigned a subscriber template to the group, the anonymous
subscribers generated have properties as defined by that template. If you have not assigned a
subscriber template, the default template is used.
illustrates the SCMP connection state functionality.
SCMP Connection State Functionality
Loss-of synch timeout/
Remove peer sessions
Not
connected
Connection establishment/
Connection establishment/
Re-query all anonymous
Re-query all anonymous
and all introduced
and all introduced
subscribers
subscribers
Connected
9-7).
Not-in-
synch
Connection establishment/
Connection establishment/
Re-query all anonymous
Re-query all anonymous
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
About SCMP
14-7
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