Information About Profiles
Information About Scale Profiles
A scale profile is a user-configurable setting that tunes the router to perform more efficiently depending on
how the router is being used. You should configure a scale profile before deploying the router to production
use.
Your router can be used for different market segments on the service provider edge space. Because different
customers have different network architectures, which can place different scale demands on the router, it is
important to configure the scale profile so that your router works as efficiently as possible within the architecture
that you are using.
Possible scenarios that are taken into account by the scale profile are:
•
Use of the router as a Layer 2 transport device, thus requiring the support of high Layer 2 scale numbers.
•
Use of the router primarily as a Layer 3 box that provides Layer 3 virtual private network (VPN) services,
thus requiring the support of a high number of Layer 3 routes.
There are three scale profiles available on your router:
•
The default scale profile that supports deployments that require large Layer 2 MAC tables (up to 512,000
entries) and a relatively small number of Layer 3 routes (less than 512,000).
•
The Layer 3 scale profile that supports deployments that require more Layer 3 routes (up to 1 million)
and smaller Layer 2 MAC tables (less than 128,000 entries).
•
The Layer 3 XL scale profile that supports deployments that require a very large number of Layer 3
routes (up to 1.3 million) and minimal Layer 2 functionality. Note that the support for up to 1.3 million
routes is split into IPv4 scaled support and IPv4/IPv6 scaled support. You can configure up to 1.3 million
IPv4 routes, or up to 1 million IPv4 routes with 128,000 IPv6 routes. The layer 3 XL scale profile does
not support video monitoring.
You can increase the memory available for BGP by configuring the Layer 3 XL profile on the Cisco
ASR9000 Series Router using the hw-module profile scale l3xl command. However, this reduces the
memory available for some other processes. To activate the new profile, you need to manually reboot
the system.
The memory for BGP and the other processes can be verified by using the following commands before
and after the configuration:
•
show processes memory detail
•
show bgp process performance-statistics | include RLIMIT : This command is available only
from Cisco IOS-XR release 6.1.x onwards.
Information About Feature Profiles
To allow sufficient computation capabilities within the router, the available features within the Cisco IOS XR
software image are bundled. A feature profile determines which bundle of features is available for you to use.
Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide, Release 5.1.x
4
Configuring Profiles
Information About Profiles
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