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Figure 1
Cisco 7301 Series Router LAN Ports
Connectivity
The Cisco 7301 includes a single Cisco 7000 Series port adapter slot, which protects existing customer investment in interfaces and simplifies
sparing.
The Cisco 7301 offers scalable density with a wide range of interfaces including:
• Ethernet, Fast Ethernet, and Gigabit Ethernet
• Serial and multichannel T1/E1and T3/E3 interfaces and packet-over-SONET (POS) OC-3
• OC-3/STM-1 POS, T3/E3 and OC-3/STM-1 ATM, and T1/E1 Inverse Multiplexing over ATM (IMA)
• ISDN Primary Rate Interface (PRI), Basic Rate Interface (BRI), and High-Speed Serial Interface (HSSI)
• Support for hardware encryption and Layer 3 compression (VPN accelerator modules)
For a detailed listing of all port adapters supported on the Cisco 7301 Series Router, please contact your Cisco Sales Representative.
The Cisco 7301 architecture is based on a new memory architecture type called the double data rate (DDR) memory. This new form of memory
roughly doubles the speed of access to system memory. In a store-and-forward router such as the Cisco 7301, this provides a clear advantage
because each packet must be individually stored in memory, rewritten by the system CPU, and then transmitted out of memory to the outbound
interface.
The Cisco 7301 supports 256 MB (default), upgradable to 512 MB, or 1 GB of DRAM memory. There are two DRAM memory slots, so 256
MB of memory consists of two 128-MB memory SoDIMMs, 512 MB consists of two 256-MB memory SoDIMMs, and 1 GB consists of two
512-MB memory SoDIMMs.
