Re: Serial Line is up and line protocol is up ANSWER [7:27930]
yes, correct - Original Message - From: anil To: Sent: Saturday, December 01, 2001 4:32 PM Subject: Serial Line is up and line protocol is up ANSWER [7:27930] The answer given by CISCO is A Is this really correct?! I hate to doubt the experts, but I just need re-assurance. Thanks --- If the show interface serial 0 command is executed and the message Serial Line is up and line protocol is up appears then the exact correct interpretation of this is A) The frame relay connection is active B) The connection is sending and receiving data - _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28547t=27930 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Serial Line is up and line protocol is up ANSWER [7:27930]
Gregg, Who said anything about frame relay (except for the answer).. What about PPP or any other encap? Does your explanation hold for *all* encaps? Confused.. -Anil -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Sunday, December 02, 2001 1:36 AM To: [EMAIL PROTECTED] Subject: RE: Serial Line is up and line protocol is up ANSWER [7:27930] Maybe this will explain it..Just because a serial int is UP/UP, it doesn't necessarily mean that data is able to be xfered. The serial int could be connected to a CSU/DSU which might give the int the correct control signal states to make the serial int appear to be up (example would be that the remote CSU/DSU is broken but carrier signal is up on local int). In this case, since it's frame relay, the 2nd up would not occur unless LMI keepalives were occuring. What cisco is saying is UP/UP is just the int status. Doesn't mean that data is being xfered. The most popular way to know that an interface is in use is to watch in/out stats (via sh int). Clear counters is another usefull cmd. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=27946t=27930 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Serial Line is up and line protocol is up ANSWER [7:27930]
Maybe this will explain it..Just because a serial int is UP/UP, it doesn't necessarily mean that data is able to be xfered. The serial int could be connected to a CSU/DSU which might give the int the correct control signal states to make the serial int appear to be up (example would be that the remote CSU/DSU is broken but carrier signal is up on local int). In this case, since it's frame relay, the 2nd up would not occur unless LMI keepalives were occuring. What cisco is saying is UP/UP is just the int status. Doesn't mean that data is being xfered. The most popular way to know that an interface is in use is to watch in/out stats (via sh int). Clear counters is another usefull cmd. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=27932t=27930 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
