The Cisco 2621XM is a modular Integrated Services Router (ISR) from the Cisco 2600XM series, designed for branch offices and enterprise WAN connectivity. It provides flexible LAN/WAN expansion, supporting routing, VPN services, and voice/data integration in a single platform.

The “XM” models are enhanced versions of the original 2600 series, offering higher performance, more memory, and improved packet throughput, making them popular for enterprise deployments and networking labs.

Key Features

Dual 10/100 Fast Ethernet interfaces
2 × WIC slots for WAN interface cards (DSL, serial, ISDN, etc.)
1 × Network Module (NM) slot for expansion
Modular architecture for WAN/LAN flexibility
Supports VPN, QoS, and security features via Cisco IOS
Ideal for branch office routing and lab environments
Supports voice/data integration modules
Compact enterprise router design for rack or desktop use

Technical Specifications

Model: Cisco 2621XM
Series: Cisco 2600XM ISR
LAN Interfaces: 2 × 10/100 Ethernet ports
Expansion Slots:
- 2 × WIC slots
- 1 × NM slot
AIM Slot: 1 × Advanced Integration Module slot
Performance: ~30 Kpps (higher than non-XM 2621)
Memory: Higher default RAM/Flash than base 2621 (XM upgrade class)
Routing OS: Cisco IOS (various feature sets: IP, IP Plus, Advanced IP Services)
Security: Supports IPsec VPN (IOS dependent)
Use Case: WAN edge, branch routing, CCNA/CCNP labs
Form Factor: Rack-mountable modular router