If you need an L2 switching image to complement it, use i86bi-linux-l2-adventerprisek9-15.2a.bin or similar.

. They are lightweight, start up in seconds, and have a "tried and true" reputation for passing exam-specific labs like the CCNP ENARSI Note for Users:

The 15.4(2)T version aligns closely with the software requirements for high-level certifications like the CCNP and CCIE . It supports complex features like DMVPN, advanced BGP configurations, and stateful firewalls.

: For managing network traffic, ensuring that critical applications receive sufficient bandwidth.