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This document describes the available system requirements for Cisco IOS Release XE 3S releases and includes the following sections:
The system requirements for the Cisco ASR 1000 Series Aggregation Services Routers are available here: http://www.cisco.com/c/en/us/td/docs/routers/asr1000/release/notes/asr1k_rn_rel_notes/asr1k_rn_sys_req.html
The system requirements for the Cisco ASR 4000 Series Aggregation Services Routers are available here: http://www.cisco.com/c/en/us/td/docs/routers/access/4400/release/notes/isr4451rn.html
The system requirements for the Cisco ASR 903 Series Aggregation Services Routers are available here:
http://www.cisco.com/c/en/us/td/docs/routers/asr903/release/notes/asr903_3S_rel_notes.html
The system requirements for the Cisco CSR 1000V Series Cloud Services Router are available here:
http://www.cisco.com/c/en/us/td/docs/routers/csr1000/release/notes/csr1000v_3Srn.html