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NOTE: This product is no longer being sold and might not be supported.

View the End-of-Life Notice to learn: 

  • End-of-sale and end-of-life dates
  • What replacement products are available
  • Information about product support

Recommended Migration: The Cisco Catalyst 6503-E Switch replaces this end-of sale product.

The 3- slot Catalyst 6503 chassis offers a compact 4 rack-unit height that is ideally suited for multi-Gbps secure data centers, remote access, e-commerce, and converged network solutions. Supports Catalyst 6500 series end-to-end operational consistency benefits.

Key Features:

Supports all Catalyst 6500 modules, including all,

  • Supervisor engines
  • Switch fabric modules
  • Fast Ethernet modules
  • Gigabit Ethernet modules
  • Voice modules
  • Flex Wan Modules
  • ATM modules
  • Multi Gigabit services modules (content services ,firewall, intrusion detection, IPSec/VPN, network analysis, and SSL acceleration)

Supports both CatOS and IOS software

Provides maximum uptime with redundancy and rapid 2-3 second failover across supervisor engine.

The Cisco Catalyst 6503 Firewall Security System is a three-slot model providing a turnkey solution that integrates a Cisco Catalyst 6000 Supervisor 2 (with integrated Policy and Multilayer Switch Feature cards [PFC2/MFC2] for system control, routing services, and dual-Gigabit-Ethernet ports); a Cisco Catalyst Firewall Service Module providing 5 Gbps of firewall services; and a single open slot for site customization.

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