V.110 Support for Cisco 3600 Series Digital Modems

show modem

Table 2 describes the fields in the previous four displays, which were created using the show modem slot/port command. This table applies to all modem module types.

 

Table 2

show modem slot/port Field Descriptions

Field

Description

 

 

Mdm

Slot and modem number.

 

 

Typ

Modulation type, which can be any of the following values: Bel103, Bel212,

 

V110, V21, V22, V22bis, V23, V32, V32bis, VFC, V34, V17, V27, V33

 

and K56Flx

 

 

Status

Current status of the modem. Possible values include:

 

Conn—Modem is connected to a remote host.

 

B—Inoperable state, which is configured by the modem bad command.

 

B*—Inoperable state, which is configured by the modem startup-test

 

command during initial power-up testing.

 

b—Modem is busied out. This can be manually configured by the modem

 

busyout line configuration command.

 

Reset—Modem is in reset mode.

 

D/L—Modem is downloading firmware.

 

Bad FW—Downloaded modem firmware is not operational.

 

Busy—Modem is out of service and not available for calls.

 

Idle—Modem is ready for incoming and outgoing calls.

 

 

Tx/Rx

Transmission and receiving speed for the most recently connected call.

 

 

G

Modem group number assigned to the modem. The group number 0 means

 

that the modem is not part of any group.

 

 

Duration

Time duration of the current call or the last call.

 

 

Modem functions

The following modem functions are displayed on manageable modems. A

 

field that is available and turned on is marked with an x. An unavailable

 

field is marked with a dash (-).

 

TX—Transmit Data. The DTE device transmits data to the DCE device.

 

RX—Receive Data. The DCE device receives data from the DTE

 

 

device.

 

RTS—Request To Send. The DTE device signals to the DCE device

 

 

that the DTE device accepts data into its buffers.

 

CTS—Clear To Send. The DCE device signals to the DTE device that

 

 

the DCE device accepts data into its buffers.

 

DSR—Data Set Ready. The modem is ready to start communication.

 

DCD—Data Carrier Detect. The DCE device indicates to the DTE

 

 

device that a call is present and established with a remote modem.

 

 

Dropping the DCD function terminates the session.

 

DTR—Data Terminal Ready. The DTE device indicates to the DCE

 

 

device that it accepts calls.

 

 

Firmware

Installed modem firmware.

 

 

 

Cisco IOS Release 12.1(5)T

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Cisco Systems 3600 manual Show modem slot/port Field Descriptions

3600 specifications

Cisco Systems 3600 is a high-performance modular router series designed for small to medium-sized enterprises and branch offices. Launched in the late 1990s, it has been widely recognized for its flexibility, scalability, and reliability. The series is part of Cisco's extensive networking portfolio and has played a vital role in delivering various services and applications while enhancing operational efficiency.

One of the main features of the Cisco 3600 series is its modular architecture, allowing organizations to customize the router according to their specific needs. The system supports various interface modules that can accommodate different types of connections, including serial, Ethernet, and DSL, which helps in building versatile network solutions. The modularity not only increases the router’s lifespan by enabling upgrades as technology changes but also supports future expansion as the organization grows.

The Cisco 3600 series routers utilize advanced routing protocols, such as RIP, OSPF, EIGRP, BGP, and IS-IS, to ensure efficient data transmission and optimal network performance. This capability allows the routers to adapt to varying traffic demands and complexities, thereby optimizing bandwidth utilization and reducing latency in communications. With extensive memory options, including Flash and DRAM, the 3600 series can handle robust data processing and support intricate routing environments.

Security is another critical feature of the Cisco 3600 series. It includes support for VPNs, firewalls, and other security protocols, providing a secure environment for data transfer. The implementation of features like Access Control Lists (ACLs) and Intrusion Detection Systems (IDS) enhances the overall security posture, making it suitable for organizations looking to protect their sensitive information.

In terms of scalability, Cisco 3600 routers can easily accommodate increased workloads and network growth. This is done through the provision of additional modules and cards to increase capacity and performance. The series can also support multiple WAN connections, enabling seamless integration with various telecommunication services.

Additionally, the Cisco 3600 series is designed for ease of management. Utilizing Cisco's IOS software, network administrators can manage and configure the routers efficiently, thanks to a user-friendly interface and extensive command capabilities. This makes troubleshooting simpler and ensures network availability remains high.

In conclusion, Cisco Systems 3600 series routers combine robust performance, security features, and scalability, making them an invaluable asset for businesses looking to maintain a reliable and efficient networking solution.