Thanx Priscilla , Now It is cleared as Cisco documentation also says so,I checked on web site. Can You Please put some light on my other question which I posted to group regarding DLCI Values range with LMI dependency. Thanx once again Priscilla Oppenheimer wrote: > > Juntao gave you good answers, but I thought I'd comment on the > issue of whether you should shut down a serial interface before > changing the encapsulation. It is the "polite" thing to do, > although it's not necessary to get it to work. > > It sounds like you were using PPP before. Remember that the > Link Control Protocol (LCP) is connection-oriented, working in > the control plane. It would be nice if you gave it a chance to > gracefully shut down the connection with the router on the > other end. If you don't, you'll leave the other router > wondering what happened, until a timeout occurs and it closes > the connection. The router will waste resources trying to > figure out whether its partner is alive or dead. > > The same applies if you were changing from Frame Relay or > Cisco's HDCL. They also both have connection-oriented > components, working in the control plane, that will waste > resources trying to figure out whether the connection should be > closed. > > Of course, you're going to soon change the other router too, so > it's really not a big deal, but it's just a matter of letting > protcools behave in their intended way to hopefully not waste > router resources. > > To be honest, I doubt that most people working in the field > worry about such things, (not to say that operations types > aren't graceful. :-) > _______________________________ > > Priscilla Oppenheimer > www.troubleshootingnetworks.com > www.priscilla.com > > Simmi Singla wrote: > > > > Hi All, > > Problem 1) > > Can anybody explain me cofiguring IETF encap on the main > > interface and confguring ietf per dlci on the sub > > interface,what coul be implications. > > > > My Topology > > > > centrral > > router---->switch------remote-ends(non cisco)(many cisco > > & othervendors) > > 10 sub interfaces > > > > > > > > This router is in central site and have 10 subinterfaces > > point-point .The remote side can be cisco router or non cisco > > also. > > Will ietf if configured on main interface will work with cisco > > routers on remote side or only used for non cisco routers,or > > should I opt for ietf encap on per dlci basis on subinterface. > > Example > > Sub interface > > frame-relay interface-dlci 46 ietf > > > > or main interface > > as encap frame-relay ietf > > > > Problem 2) Is it necessary to shut the interface before > > changing encap on the main interface for example earlier i > have > > ppp encap,now i change to ietf is it I have to change my > > connection. > > Its mentioned in cisco documentation that > > Its recommeneded taht we need to shut the interface before > > switching between encapsulations on Main interface. > > Thanx in advance > > > > > > > > > >
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