C2691-advipservicesk9-mz.124-17.image 〈2027〉

With FastEthernet ports, this router acted as a CPE for Metro Ethernet services, running 802.1q VLAN trunking, BGP for customer routes, and QoS to honor provider markings.

Cisco IOS image filenames are not arbitrary; they follow a strict naming convention that describes the platform, feature set, memory location, and version. Let’s dissect c2691-advipservicesk9-mz.124-17.image piece by piece. C2691-advipservicesk9-mz.124-17.image

Enables 3DES and AES encryption, crucial for VPN deployment. With FastEthernet ports, this router acted as a