2600 ASYNC Issue

Unanswered Question
Dec 5th, 2007
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Hi Gang,

We have about 900 2600 Cisco Routers which we use for Out-Of-Band Management Access to numerous Devices all across the states.

Recently one of our vendor warranties has reached the end of contract and with all the Remote Testing Units on Site we have come across a slight issue which i need a little 101 refresher course on.

router# > sho line 36

Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns

36 TTY 9600/9600 - - - - - 32 0 0/0

Line 36, Location: "", Type: ""

Length: 24 lines, Width: 80 columns

Baud rate (TX/RX) is 9600/9600, no parity, 2 stopbits, 8 databits

Status: Ready

Capabilities: EXEC Suppressed

Modem state: Ready

Modem hardware state: noCTS* DSR DTR RTS

Special Chars: Escape Hold Stop Start Disconnect Activation

^^x none - - none

Timeouts: Idle EXEC Idle Session Modem Answer Session Dispatch

00:10:00 00:02:00 none not set

Idle Session Disconnect Warning


Login-sequence User Response


Autoselect Initial Wait

not set

Modem type is unknown.

Session limit is not set.

Time since activation: never

Editing is enabled.

History is enabled, history size is 10.

DNS resolution in show commands is enabled

Full user help is disabled

Allowed transports are pad v120 telnet rlogin. Preferred is telnet.

No output characters are padded

No special data dispatching characters

My question is, I used to be able to determine whether the Hardware MODEM State (ex: noCTS* DSR DTR RTS) was physical or logical config issue. This was a LONG time ago. My memory escapes me now, but can anyone break it down as per how to differentiate noCTR, CTR* CTR and etc...

Thank you kindly,



"...a telecommunications company yet you lack communication..."

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