11/16/2018 0 Comments Cisco Serial Dcd Dsr Dtr Rts CtsIsolated High-Speed Serial Port Powered. RTS to CTS; DTR to DSR and DCD • Supports automatic RS-485 data direction control with no baudrate switch settings. Aug 20, 2006 Experts Exchange > Questions > CISCO Router Serial CRC Error. 1 How do I do a continuous ping on cisco serial ports. DCD=up DSR=up DTR=up RTS=up CTS=up. Dtr Rts SerialDtr DsrHi, Has anyone seen this in serial interfaces before? Link is UP and traffic is going through, however router shows CTS=down besides a lot CRCs/Input Errors. It doesn't make sense to me the parameter which should advise that the link is 'ready to go' is DOWN while there is traffic on it. Users are complaining some application are slow. The router is a Cisco 2811 IOS 12.4(15)T10. > -----Original Message----- > From: [email protected] [mailto:cisco-nsp- > [email protected]] On Behalf Of Marcelo Zilio > Sent: Thursday, December 17, 2009 10:04 AM > To: [email protected] > Subject: [c-nsp] Serial link CTS=down link UP > > Hi, > > Has anyone seen this in serial interfaces before?
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