Cisco 880 Series Integrated ServicesRouter

Cisco 880 Series Integrated Services Router

The Cisco 880 Series Integrated Services Router is engineered to deliver robust, high‑performance routing and security capabilities for enterprise networks of all sizes. Built on Cisco’s proven IOS platform, this router seamlessly integrates advanced routing protocols, VPN technologies, and comprehensive threat protection into a single, compact chassis.

Core Routing Features

The 880 Series supports both IPv4 and IPv6 multicast, ensuring efficient distribution of data across large networks. Key routing protocols include:

• Open Shortest Path First (OSPF) – dynamic link-state routing for fast convergence.
• Border Gateway Protocol (BGP) – scalable inter‑domain routing with extensive policy control.
• Enhanced Interior Gateway Routing Protocol (EIGRP) – rapid route updates and load balancing.
• Virtual Route Forwarding (VRF) Lite – logical segmentation of routing tables without requiring separate hardware.
• Next Hop Resolution Protocol (NHRP) – essential for dynamic tunneling in DMVPN deployments.
• Layer 2 Tunneling Protocol Version 3 (L2TPv3) – supports multicast and broadcast traffic over VPN tunnels.

Advanced VPN and Security Capabilities

The router excels in secure connectivity with a suite of VPN technologies:

• Dynamic Multipoint Virtual Private Network (DMVPN) – simplifies hub‑and‑spoke architectures.
• Tunnel‑less Group Encrypted Transport VPN – eliminates the need for explicit tunnel configuration while maintaining encryption.
• IPsec stateful failover – ensures continuous secure communication during link or device failures.
• VRF‑aware IPsec – isolates encrypted traffic within distinct VRFs.
• IPsec over IPv6 – native support for the next generation of Internet protocols.

Security is further reinforced by Cisco’s IOS Firewall, featuring:

• Stateful failover – maintains firewall integrity during redundancy events.
• VRF‑aware firewalling – applies security policies within isolated routing domains.
• Content filtering – subscription‑based Trend Micro integration, with support for Websense and SmartFilter.
• Integrated threat control – includes Intrusion Prevention System (IPS) and Control Plane Policing.

Quality of Service (QoS) and Traffic Management

The 880 Series implements a comprehensive QoS framework to prioritize mission‑critical traffic:

• Differentiated Services (DiffServ) – marks packets for priority handling.
• Hierarchical QoS (HQoS) – allows granular bandwidth allocation across multiple service classes.
• Class‑Based Weighted Random Early Detection (CBWRED) – mitigates congestion by early packet dropping based on class weights.
• Network‑Based Application Recognition (NBAR) – identifies and classifies application traffic for precise QoS enforcement.

Adaptive Control Technology

This feature dynamically adjusts routing decisions based on real‑time network conditions, ensuring optimal path selection even under fluctuating loads or link failures. It enhances overall network resilience and performance without manual intervention.

SIP Application Layer Gateway

The router’s SIP ALG (Application Layer Gateway) intelligently manages Session Initiation Protocol traffic, facilitating VoIP deployments by handling NAT traversal, header rewriting, and media stream routing. This ensures high call quality and reliable connectivity for voice services.

Link Fragmentation and Interleaving (LFI)

LFI improves the efficiency of large packet transmission over networks with varying MTU sizes by fragmenting and interleaving packets, reducing latency and improving throughput for bulk data transfers.

Resource Reservation Protocol (RSVP) and Real‑Time Transport Protocol (RTP)

The router supports RSVP for bandwidth reservation on a per‑flow basis, essential for real‑time applications such as video conferencing. RTP header compression (cRTP) further reduces overhead, enabling smoother media delivery.

Integrated Threat Control Suite

• IPS (Intrusion Prevention System) – actively monitors traffic for malicious patterns and blocks threats in real time.
• Control Plane Policing – protects the router’s control plane from excessive or malicious routing updates.
• Flexible Packet Matching – allows administrators to define custom packet inspection rules across multiple layers.
• Network Foundation Protection – safeguards core network services such as DHCP, DNS, and NTP against attacks.

Hardware and Connectivity Options

The 880 Series is available in various models, including the C886VAJ-K9, which offers:

• 10/100Base‑T(X) Ethernet ports for high‑speed LAN connectivity.
• ADSL/VDSL interfaces compliant with G.922.3, G.992.1, G.992.3, G.992.5, G.993.2, and G.994.1 standards.
• RJ‑11 connectors for traditional ADSL lines.
• Support for IEEE 802.1D (Spanning Tree), IEEE 802.1Q (VLAN tagging), IEEE 802.3 (Ethernet), IEEE 802.3ah (Power over Ethernet), and IEEE 802.3u (Fast Ethernet).

Deployment Scenarios

The versatility of the Cisco 880 Series makes it suitable for a wide range of environments:

• Enterprise Edge – connects branch offices to the corporate backbone with secure VPN tunnels.
• Service Provider Access – delivers high‑bandwidth ADSL/VDSL services to residential and small business customers.
• Data Center Interconnect – provides reliable, low‑latency links between data centers using IPsec and DMVPN.
• Campus Networks – supports VLAN segmentation, QoS for VoIP and video, and robust security policies.

Software Flexibility

The router runs Cisco IOS, offering extensive command‑line interface (CLI) support, modular software images, and the ability to upgrade features without replacing hardware. This ensures that organizations can adapt to evolving network requirements with minimal disruption.

Conclusion

The Cisco 880 Series Integrated Services Router delivers a powerful combination of routing intelligence, secure connectivity, and traffic management in a single, scalable platform. Its rich feature set—ranging from advanced VPNs and stateful firewalls to adaptive QoS and comprehensive threat protection—makes it an ideal choice for enterprises seeking reliable performance, robust security, and future‑proof scalability.