To determine the image and version of Cisco IOS software running on your Cisco ASR 901S router, log in to the router and enter the sh ver command in the EXEC mode:
Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.4(0.19)S0.11, EARLY DEPLOYMENT ENGINEERING WEEKLY BUILD, synced to BASE_FOR_V154_1_S_XE311_THROTTLE
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Wed 06-Nov-13 13:54 by alnguyen
ROM: System Bootstrap, Version 15.4(1r)S2, RELEASE SOFTWARE (fc1)
Agora#P4-FD-1 uptime is 2 days, 22 hours, 2 minutes
System returned to ROM by power-on
System restarted at 10:22:22 UTC Mon Nov 18 2013
System image file is "tftp://10.105.33.136//auto/tftp-blr-users1/anoopkum/asr901-universalk9-mz.154-0.19.S"
Last reload reason: Reload Command
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
If you require further assistance please contact us by sending email to
License Level: AdvancedMetroIPAccess
License Type: Permanent
Next reload license Level: AdvancedMetroIPAccess
Cisco A901S-4SG-F-D (P2020) processor (revision 1.0) with 393216K/131072K bytes of memory.
Processor board ID FOC1738N74L
P2020 CPU at 800MHz, E500v2 core, 512KB L2 Cache
1 FastEthernet interface
6 Gigabit Ethernet interfaces
1 terminal line
256K bytes of non-volatile configuration memory.
98304K bytes of processor board System flash (Read/Write)
Configuration register is 0x0