u can use cisco encapsulation for cisco routers and ietf for all others. what encapsulation is to be configured on the main interface depends on how many non-cisco and cisco routers u have.
if you have, say, 7 cisco and 3 non cisco, u can use cisco encapsulation on the main interface and then use ietf encapsulation on the 3 subinterfaces to the non cisco routers, since the other subinterfaces will inherite the encapsulation of the main interface, that way u can save on typing a lot of the same commands. i just tried changing the encapsulations on a 2501, and it seems to not be necessary to shutdown the interface for the encapsulation to take effect, BUT, if cisco said that it is to be done their has to be a good reason that i do not know. end routers not using the same encapsulation will not talk to each other. if you change the encapsulation on the main interface, all subinterfaces that do not have a preset encapsulation type, will have their encapsulation type reflect to the changed one. hope the above helps, regards ""Simmi Singla"" a icrit dans le message de news: [EMAIL PROTECTED] > 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 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61591&t=61590 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
