Hi, Dear all, Q1 When I was doing the WAN monitoring. I found the link between Router A and B is down. I checked the router A interface is up and protocol is down modem status is DCD=up DSR=up DTR=up RTS=up CTS=up but at the router B, the interface is down and protocol is down, the modem status is DCD=down DSR=up DTR=up RTS=up CTS=down. What is likely the cause of the problem? Is that the modem of router B got problem or serial port of router B got problem or the link within the service provider got problem Pls enlight me Q2 What is sniffer? how to use it? Q3 Can HDLC be the encapsulation type of ISDN link? Thank you Tong ================================================================== De informatie opgenomen in dit bericht kan vertrouwelijk zijn en is uitsluitend bestemd voor de geadresseerde. Indien u dit bericht onterecht ontvangt wordt u verzocht de inhoud niet te gebruiken en de afzender direct te informeren door het bericht te retourneren. ================================================================== The information contained in this message may be confidential and is intended to be exclusively for the addressee. Should you receive this message unintentionally, please do not use the contents herein and notify the sender immediately by return e-mail. ================================================================== ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
