Legacy 7750 SR and 7950 XRS Licensing 
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PAY-AS-YOU-GROW FP4 HARDWARE LICENSING
REFERENCE GUIDE
3HE 15453 AAAA TQZZA 01  Issue: 02
 
2.2 RTU System Feature and Scale Licenses
There are specific RTUs that cover the use of features and feature scale. These 
RTUs cover features such as MACsec, Telemetry, BNG server and feature scale for 
VPRN, VPLS, and ESM subscriber-hosts. The RTUs are required for any node that 
will activate the features.
2.3 FP3 Generation Card Licenses
For FP3 generation IOM, IMM, and XMA cards, originally there were RTUs covering 
VPRN scale on a per-card basis. These RTUs have been replaced by system-level 
VPRN scale RTUs. See RTU System Feature and Scale Licenses. 
There are also per-card RTUs covering functionality upgrades. These licenses still 
apply and are not monitored or enforced in a target node. Table 2 and Table 3 
describe the IMM software licenses.
Table 2 IOM and IMM Software License Descriptions
IMM Software License Description
Layer 3 High Queueing (L3HQ) Feature Set  Full service routing functionality, full queuing, 
hierarchical policing, IPv4/IPv6 routing services
Layer 3 Basic Queueing (L3BQ) Feature Set Full IPv4/IPv6 routing services (limited to 8 ingress 
and 8 egress queues per port)
Excludes use of hierarchical policers
Layer 2 High Queueing (L2HQ) Feature Set Full ESS functionality that includes the use of full 
queuing and policing with Layer 2 services
Excludes use of multicast routing protocol or 
services, IPv6 routing services, VPRN services 
(including IPv4 and IPv6 VPNs), and network 
interfaces