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Chapter 11
Miscellaneous SSG Features
The service translation mechanism then internally converts the services to the following sets:
Service Bronze_256
Set1
Service Silver_512
Set1 and set2
The service translation mechanism also provides for the translation of services that are complete subsets
of one another. For example, consider the following service definitions:
ssg bind service A_1 <next hop ssg>
10.58.253.0/255.255.255.0
ssg bind service B_256 <next hop ssg>
10.58.0.0/255.255.0.0
Based on the service definitions, service A_1 is a subset of service B_256. Therefore, the service
translation mechanism creates the following two sets and internally converts the services to sets:
Set1
10.58.253.0/255.255.255.0
Set2
10.58.0.0/255.255.0.0
Service A_1
Set1
Service B_256
Set1 and set2
Assume that user1 is subscribed to service B_256 at 256 Kbps and user2 is subscribed to service A_1 at
1 Mbps. Internally, user1 is subscribed to both set1 and set2. However, policing of the aggregate traffic
to either set1 or set2 is at an aggregate rate of 256 Kbps because policing of user traffic is based on the
service to which the user is assigned. User1 is subscribed to service B_256; therefore, policing is at a
rate of 256 Kbps.
Restrictions for Service Translation
Service translation has the following restrictions:
•
•
Prerequisites for Service Translation
Enable service translation before SESM downloads overlapping service definitions.
OL-4387-02
Network sets for services must be unique.
If the service definitions from SESM change, the user must be disconnected and then reconnected
before the service translation mechanism can properly translate the new service definitions.
Cisco 10000 Series Router Service Selection Gateway Configuration Guide
SSG Enhancements for Overlapping Services
11-9
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