Chapter 1 Cisco 3200 Rugged Enclosures

I/O End Cap Port Signals

This section describes the ports and port signals on the Cisco 3200 Rugged Enclosure I/O end caps.

Gigabit Ethernet Signal Limitations

Due to CPU and memory bus limitations, a Gigabit Ethernet port transmits and receives packets below the line rate. The line rate is lower for small frames and higher for large frames.

Small packet streams on Gigabit Ethernet ports, such as 64-byte packet streams, support up to 24 percent of full duplex, bidirectional line rate traffic without experiencing packet drops.

The 512-byte packet streams support up to 78 percent of full duplex, bidirectional line rate traffic. The 1518-byte packet streams support up to 88 percent of full duplex bidirectional line rate traffic.

At higher frame rates the RDRP receive drop counter (displayed by using the show controller g0/0 command) increases indicating dropped packets.

At higher frame rates for packet sizes greater than 512 bytes, the transmit underruns1 counter (displayed by using the show int g0/0 or show int g0/1 command) increases. The transmit underruns might cause CRC errors on the peer router.

Fast Ethernet Signals

A Cisco router identifies a Ethernet port interfaces by slot number and port number in the format of slot/port. For example, the slot/port address of a Fast Ethernet interface on the Cisco 3230 Rugged Enclosure is 0/0.

The Cisco 3270 Router Ethernet port signals are in compliance with IEEE 802.3. The interfaces support the following:

Autonegotiation and parallel detection MII interface with extended register capability for 10/100BASE-TX or 10/100/1000BASE-TX connections.

Full-duplex and half-duplex modes.

3.3V operation low power consumption (300 mW typical).

Low-power sleep mode.

Robust baseline wander correction performance.

MDIX support (Fast Ethernet and Gigabit Ethernet copper only).

Jumbo Frame (4400 bytes) support on Gigabit Ethernet interfaces.

10BASE-T or 100BASE-TX using a single Ethernet connection.

10BASE-T, 100BASE-TX, or 1000BASE-TX using a Gigabit Ethernet copper connection.

100BAFX/100LX, 1000BASE-SX, 1000BASE-LX/LH for Gigabit Ethernet fiber-optic connections. (The speed is not configurable.)

Standard carrier signal multiple access collision detect (CSMA/CD) or full-duplex operation.

Integrated programmable LED drivers.

1.Transmit underrun–an error on interfaces when the data is not ready on the memory bus when the system attempts to transmit the data; a bad packet is transmitted.

Cisco 3200 Series Router Hardware Reference

 

OL-5816-10

1-15

 

 

 

Page 27
Image 27
Cisco Systems 3200 manual End Cap Port Signals, Gigabit Ethernet Signal Limitations, Fast Ethernet Signals

3200 specifications

Cisco Systems 3200 Series routers are designed to deliver high-performance, reliable networking solutions for enterprise and service provider environments. They are part of Cisco's extensive portfolio that addresses the challenges of modern networking, particularly in connecting remote offices and branch locations efficiently and securely.

One of the standout features of the Cisco 3200 Series is its scalability. The routers support a variety of modular interfaces, allowing organizations to tailor their network infrastructure according to specific needs. This modularity ensures that as businesses grow and their networking requirements evolve, the Cisco 3200 can adapt without necessitating a complete overhaul of existing hardware.

Security is another critical characteristic of the Cisco 3200 routers. They incorporate robust security features such as integrated firewall capabilities, advanced encryption standards, and Virtual Private Network (VPN) support. This ensures that sensitive data transmitted over the network is protected from potential threats, making them ideal for businesses that prioritize security, especially in regulated industries.

Performance-wise, the Cisco 3200 is equipped with advanced processing capabilities, enabling it to handle high data throughput even in demanding environments. This performance is bolstered by the use of Cisco's proprietary technologies, such as Quality of Service (QoS) and traffic shaping, which allow the prioritization of critical applications to ensure seamless connectivity.

The router series also benefits from Cisco's extensive software ecosystem, which includes Cisco IOS (Internetwork Operating System). IOS provides a familiar interface for network administrators, alongside a wealth of features for configuration and management. Furthermore, the Cisco 3200 Series is designed to integrate with Cisco's Application Policy Infrastructure Controller (APIC) and Software-Defined Networking (SDN) solutions, offering enhanced flexibility in managing network resources.

Connectivity options for the Cisco 3200 Series are extensive, offering support for various WAN technologies, including MPLS, LTE, and broadband internet. This versatility enables organizations to choose the best connectivity solutions according to their geographic and operational requirements.

Finally, the Cisco 3200 Series routers are built with reliability in mind. They are designed for high availability and redundancy, ensuring that network services remain uninterrupted in the event of hardware failures or maintenance activities.

In conclusion, Cisco Systems 3200 routers represent a comprehensive networking solution, combining scalability, security, performance, and reliability, making them a preferred choice for organizations looking to enhance their networking infrastructure in a dynamic digital landscape.