DTE/DCE has meaning at Layer 2 Frame Relay where DCE refers to the Frame Switch. DTE/DCE also has meaning at Layer 1 where we determine which end provides clocking to the line. They are two seperate configuration points. At layer one the DCE end could be the switch or the router. If you are using a back-to-back serial cable, issue a show controllers s 0 (or whatever your serial interface is named) (put a space between the word serial and the number). The output should tell you whether you have the DCE or DTE end of the cable. Configure a clock rate on the DCE end.
> -----Original Message----- > From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED] > Sent: Thursday, February 27, 2003 11:56 AM > To: [EMAIL PROTECTED] > Subject: Re: some question about frame-relay configuration! [7:63973] > > > The Long and Winding Road wrote: > > > > the frame-relay intf-type command is used on a frame relay > > switch, as part > > of the switch to switch config. it should not be used on a > > customer edge > > device. > > He set R1 and R3 to intf-type dte. That should work, > shouldn't it? I tried > it on my "customer edge" routers and it takes the command but > doesn't put it > in the config since it's the default. They are connected with > serial xo > cables to a router in the middle that has "frame-relay switching" and > "intf-type dce" configured. > > In other words, the same config as this fellow's, although my > routers don't > leave the default config line in. > > I would say check the cables. Are you sure you really have > the dte end at > the dte router and the dce end at the dce router for both cables? > > On some routers "show controler" will tell you. > > Priscilla > > > > > > if you were to enter the "frame-relay switching" commands on R1 > > and R3, the > > interfaces would come up and the routers would engage in > > frame-relay switch > > signaling. > > > > You probably want to remove the frame-relay intf-type commands > > from R1 and > > R3, making them customer edge devices, at which point they will > > communicate > > with R2 > > > > > > ""tigers zheng"" wrote in message > > news:[EMAIL PROTECTED] > > > I have a question about frame-relay!Please tell me why it > > happened? > > > the topolofy :r1(s0)---(s0/0)r2(s0/1)---(s0/0)r3 > > > r1:2511,r2:2620,r3:2621 > > > > > > the configuration: > > > r1: > > > interface s0 > > > ip address 10.10.10.1 255.255.255.0 > > > encapsulation frame-relay > > > frame-relay lmi-type ansi > > > frame-relay intf-type dte > > > frame-relay interface-dlci 100 > > > ! > > > r3: > > > interface s0/0 > > > ip address 10.10.10.2 255.255.255.0 > > > encapsulation frame-relay > > > frame-relay lmi-type ansi > > > frame-relay intf-type dte > > > frame-relay interface-dlci 101 > > > ! > > > r2: > > > frame-relay switching > > > int s0/0 > > > no ip address > > > encapsulation frame-relay > > > clockrate 64000 > > > frame-relay route 100 interface s0/1 101 > > > frame-relay lmi-type ansi > > > frame-relay intf-type dce > > > ! > > > int s0/1 > > > no ip address > > > encapsulation frame-relay > > > clockrate 128000 > > > frame-relay route 101 interface s0/0 100 > > > frame-relay lmi-type ansi > > > frame-relay intf-type dce > > > ! > > > But the serial of all of the router is shutdown,line protocol > > is also > > down! > > > I want to know what happen! > > > Thanks very much! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=64015&t=63973 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
