portKeepalive
PERLE-IOLAN-SDS-MIB ·
.1.3.6.1.4.1.1966.12.1.5.1.1.20
Object
column
r/w
OnOffValue
Enables a per-connection TCP keepalive feature; after approximately 3 minutes of network connection idle time, the connection will send a gratuitous ACK to the network peer, either ensuring the connection stays active OR causing a dropped connection condition to be recognized by the reverse raw service. Applications using this feature need to be aware that there might be some considerable delay between a network disconnection and the port being available for the next connection attempt; this is to allow any data sent on prior connections to be transmitted out of the serial port buffer. Application network retry logic needs to accommodate this feature.
Context
- MIB
- PERLE-IOLAN-SDS-MIB
- OID
.1.3.6.1.4.1.1966.12.1.5.1.1.20- Type
- column
- Access
- readwrite
- Status
- current
- Parent
- portEntry
- Table
- portTable
- Siblings
- 38
Syntax
OnOffValue
- Source
- OnOffValue
- Base type
Enumeration
Values & Constraints
Type Values
1 | off |
2 | on |
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| portIndex Serial Port Index. Valid values are 1 to maximum port number the
Device Server supports | column | PortNumber | .1.3.6.1.4.1.1966.12.1.5.1.1.1 |
| portPreDefinedUser For DSLogin line service, makes this a line that is dedicated
to the specified user. Only this user will be able to log in
on this line and they won't need to enter their login
na… | column | OctetString | .1.3.6.1.4.1.1966.12.1.5.1.1.10 |
| portDSPort The Device Server port number. | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.11 |
| portIdleTimer Enter a time period, in seconds, for which the Idle Timer will run.
Use this timer to close a connection because of inactivity. When the
Idle Timer expires, the Device Server will… | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.12 |
| portSessionTimer Enter a time, in seconds, for which the Session Timer will run. Use this
timer to forcibly close the session (connection). When the Session Timer
expires, the Device Server will e… | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.13 |
| portSecurity Enables/disables login/password authentication, locally or externally,
on reverse Telnet connections. The default is Off. | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.14 |
| portBreak Specifies how a break is interpreted:
None-The Device Server ignores the break key completely and
it is not passed through to the host. This is the default setting.
Local-The D… | column | Enumeration | .1.3.6.1.4.1.1966.12.1.5.1.1.15 |
| portInboundFlowControl Determines if input flow control is to be used.
Default is On. This is active only when Line Flow Control
is set to Soft, Hard, or Both. | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.16 |
| portOutboundFlowControl Determines if output flow control is to be used.
Default is On. This is active only when Line Flow Control
is set to Soft, Hard, or Both. | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.17 |
| portInitialMode Specifies the initial interface a user navigates when logging
into the line; either the Menu or a prompt for the CLI.
The default is CLI. | column | Enumeration | .1.3.6.1.4.1.1966.12.1.5.1.1.18 |
| portReset Resets the terminal type connected to the line when a user logs out. | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.19 |
| portStatus When you perform a GET on this variable, one of
the following values will be returned:
1-Indicates that the container folder is active with no changes.
2-Indicates that the contai… | column | ContainerStatus | .1.3.6.1.4.1.1966.12.1.5.1.1.2 |
| portMapCR Maps carriage returns (CR) to carriage return line feed (CRLF).
The default value is Off. | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.21 |
| portMOTD Enables/disables the message of the day on the line. | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.22 |
| portHotKeyPrefix The prefix that a user types to lock a line or redraw the Menu. The
default value is hex 01, which corresponds to Ctrl-a (^a) (hex value
02 would be Ctrl-b (^b), etc.):
^a l-(Lowe… | column | Hex8 | .1.3.6.1.4.1.1966.12.1.5.1.1.23 |
| portLock When enabled, the user can lock his terminal with a password using the
Hotkey Prefix (default Ctrl-a) ^a l (lowercase L). The Device Server
prompts the user for a password and a c… | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.24 |
| portEnable Is the Port Enabled. This field is not available on 1-port units. | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.25 |
| portMultiSession The number of Multisessions allowed on this port | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.26 |
| portDialRetries The number of Dial Retries. | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.27 |
| portDialTimeout The timeout value when dialing in seconds. | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.28 |
| portInternetAddress The Internet address of this port. | column | Ipv4v6Address | .1.3.6.1.4.1.1966.12.1.5.1.1.29 |
| portName Provide a name for the line so it can be easily identified. | column | OctetString | .1.3.6.1.4.1.1966.12.1.5.1.1.3 |
| portRawOption Defines the multihost Service and direct connection initiate mode | column | Enumeration | .1.3.6.1.4.1.1966.12.1.5.1.1.30 |
| portDirectTrigger Defines the direct connection initiate char | column | Hex8 | .1.3.6.1.4.1.1966.12.1.5.1.1.31 |
| portDataLogging When on, serial data will be buffered if the TCP connection is lost.
When the TCP connection is re-established, the buffered serial data will
be sent to its destination (this op… | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.32 |
| portSacSupport When on, a user can access SAC (the interface of the Microsoft
Emergency Management Systems utility) through EasyPort Web when the device server's
serial port is connected to a … | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.33 |
| portSendName Send the port name on connect. Applies to direct raw, silent raw,
and TruePort (server-initiated) srevice types. | column | OnOffValue | .1.3.6.1.4.1.1966.12.1.5.1.1.34 |
| portConnectInitiateString String to be sent when connection is initiated. | column | OctetString | .1.3.6.1.4.1.1966.12.1.5.1.1.35 |
| portConnectTerminateString String to be sent when connection is terminated. | column | OctetString | .1.3.6.1.4.1.1966.12.1.5.1.1.36 |
| portConnectStringDelay The delay after sending the connect or terminate string, in milliseconds | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.37 |
| portBreakLength Amount of time, in milliseconds, to send a break signal (tunnel service only) | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.38 |
| portBreakDelay The delay, in milliseconds, after sending a break signal (tunnel service only) | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.39 |
| portService Defines the Line Service, which determines how the
line will be used. USB ports can only be configured to
reverseraw(4),reversessh(11),,reversetelnet(8),
bidirectionalmodem(5), t… | column | Enumeration | .1.3.6.1.4.1.1966.12.1.5.1.1.4 |
| portDial Determines how a modem will work on the line. If your user
is remote and will be dialing in via modem or ISDN TA, set
this parameter to In; if the Device Server is being used as
a… | column | Enumeration | .1.3.6.1.4.1.1966.12.1.5.1.1.5 |
| portModem The name of the predefined modem that is used on this line. | column | OctetString | .1.3.6.1.4.1.1966.12.1.5.1.1.6 |
| portPhone The phone number to use when Dial is set to Out. | column | OctetString | .1.3.6.1.4.1.1966.12.1.5.1.1.7 |
| portTermType Specifies the type of terminal connected to the line:
Dumb, WYSE60, VT100, ANSI, TVI925, IBM3151TE,
VT320 (specifically supporting VT320-7),
HP700 (specifically supporting HP700/4… | column | Enumeration | .1.3.6.1.4.1.1966.12.1.5.1.1.8 |
| portPages For DSLogin line service, this is the number of video
pages the terminal supports. Valid values are 1-7.
The default is 5 pages. | column | Integer32 | .1.3.6.1.4.1.1966.12.1.5.1.1.9 |