: Provides hardware-based encryption on link layers to protect data integrity and confidentiality. 3. Voice and Video Optimization

: The image includes full IPv6 routing capabilities, including IPv6 static routing, OSPFv3, and EIGRP for IPv6. IPv6 Multicast Listener Discovery (MLD) snooping is also supported across all Catalyst 3560 and 3750 images, providing parity between IPv4 and IPv6 multicast capabilities.

: The "Advanced IP Services" feature set with strong encryption (K9). : Indicates the firmware runs from RAM and is compressed. 150-2.SE11