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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 2 Licensing
License Types
License Types
Cisco ASR 901 router supports the following types of licenses:
• Image Level License
• Feature Based License
Image Level License
An Image level license corresponds to the level of the IOS image that comes up based on the licenses
present on the router. This license is enforced while booting and it uses a universal image. It activates
all the subsystems corresponding to the license that you purchased. Image based licenses (SL-A901-A
and SL-A901-B) need rebooting of the router.
Features Supported
In Cisco ASR 901, IPBase (SL-A901-B) and AdvancedMetroIPAccess (SL-A901-A) are permanent;
once installed they do not expire. Trial or temporary licenses are not supported on the Cisco ASR 901
router.
Feature Based License
Feature based licenses are licenses used to activate individual features once the image level licenses are
used. Once the image level license is used and the appropriate subsystems are activated. Individual
feature licenses are used to activate individual features. These include:
• Port based license
License Features
IPBase / SL-A901-B
• L2, EVC, 802.1Q, 802.1ad, QinQ, 802.3ah,
H-Qos, IPv4 static routes, routing protocols,
host connectivity, ACL, REP, VRF-Lite
• E-OAM—CFM (BD, port level), IPSLA
(barring LSP)
• Clocking—SyncE, 1588-OC Slave, 10M,
1PPS/ToD, G.781 Priority based Clock
Selection (no ESMC/SSM)
Note Time-division multiplexing (TDM) is
unavailable.
AdvancedMetroIPAccess / SL-A901-A
• All IPBase license features
• MPLS—MPLS, L2VPN (EoMPLS), L3VPN,
MPLS OAM, PW redundancy
• E-OAM—IPSLA(LSP)
• TDM —IPoPPP/HDLC, QoS,
CESoPSNoMPLS, PPP/HDLCoMPLS, Clock
Recovery from TDM interfaces, Y.1731PM