Enterasys Networks CSX7000 Manuel d'utilisateur télécharger pdf (Page 126)

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USER’S GUIDE

126 CyberSWITCH

decibel value of 0.0 (meaning no attenuation). If the distance is much closer (for example, 1000 ft.),

the decibel value may be -15.0 (i.e., the signal is strong enough that it needs a certain amount of

attenuation).

INE TYPE

For V.35 and RS232 lines only. This parameter differentiates the network connections from

connections to local computing devices. The network line type should be specified for lines that will

be used by a Dedicated, Frame Relay, or X.25 Access.

ATA LINE IDLE CHARACTER

This identifies the idle character which is transmitted by the CyberSWITCH between the HDLC

frames. The character choices are marks (all ’1’s) or HDLC flags (hexadecimal ’7E’), with marks

being the default. In most situations, the default value is acceptable, as the receiving side should

able to identify the start of a new frame after reception of either idle character. However, there may

be some receiving devices which cannot properly make this determination with the default of idle

marks. If communication cannot be established with the receiving device, you may need to take

care that the idle character is set to a value that the receiving device will understand. For example,

CISCO devices require the flag data line idle character.

COMMPORT I

NFORMATION

For systems using the asynchronous management port (COMMPORT) for out-of-band

management. These elements control how the port will function. Elements include:

•modem name

•baud rate

•data bits

• stop bits

• parity value

• flow control type

• mode of operation

Mode of operation determines whether this port operates in autosense mode or terminal mode.

Autosense mode offers the flexibility to use this port for console access, or to send PPP-async data.

For console access, the remote user must press <Enter> or <Return> four times upon call

connection. If no carriage returns are detected, the CyberSWITCH assumes it will receive PPP data.

Terminal mode requires no interaction. It automatically sends the attached device a login prompt

for console access.

LINE BACKGROUND INFORMATION

Lines are communication facilities from the carriers. These lines directly attach to the system. From

the system perspective, lines provide the physical connection to switched networks. Lines are not

required for LAN connections.

Lines must be configured for BRI resources and PRI resources. For PRI resources, the

CyberSWITCH supports both T1 lines (used in North America, Australia and Japan) and E1 lines

(used in Europe, Mexico, South America, Korea). To specify the type of line as either T1 or E1, you

need to set a hardware switch on the PRI resource itself. (See PRI adapter settings in the Hardware

Installation chapter.)

When configuring PRI lines, you will need to specify framing type, line coding type, and T1

signaling method. Refer to the Configuration Elements section, which describes these characteristics.

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Enterasys Networks CSX7000 Manuel d'utilisateur Page 126

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