Cannot establish frame relay connection

[drbk563]

I have a frame relay switch setup. Which is setup with a four router network. One of the routers is not establishing a connection to the frame relay switch. This router is Router2. Router2 is connected to the Frame Relay Switch on Serial 1. Below is a copy of the configuration of the frame relay switch and Router2's configuration. What is wrong in the configuration?

Thank You

!
interface Serial1
no ip address
encapsulation frame-relay
logging event subif-link-status
logging event dlci-status-change
clockrate 56000
frame-relay intf-type dce
frame-relay route 112 interface Serial3 211
frame-relay route 197 interface Serial0 791
frame-relay route 532 interface Serial2 235
!
interface Serial2
no ip address
encapsulation frame-relay
clockrate 56000
frame-relay intf-type dce
frame-relay route 235 interface Serial1 532
frame-relay route 602 interface Serial3 206
frame-relay route 691 interface Serial0 196
!
interface Serial3
no ip address
encapsulation frame-relay
clockrate 56000
frame-relay intf-type dce
frame-relay route 206 interface Serial2 602
frame-relay route 211 interface Serial1 112
frame-relay route 297 interface Serial0 792
!
interface TokenRing0
no ip address
shutdown
!
interface TokenRing1
no ip address
shutdown
!
ip classless
no ip http server
!
!
!
line con 0
exec-timeout 0 0
login
line aux 0
transport input all
line vty 0 4
login
!
end

Router2 Config

Current configuration : 1022 bytes
!
version 12.2
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router2
!
logging rate-limit console 10 except errors
!
ip subnet-zero
no ip finger
no ip domain-lookup
!
no ip dhcp-client network-discovery
!
!
!
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface Ethernet0
ip address 172.12.23.2 255.255.255.0
!
interface Serial0
ip address 172.12.123.2 255.255.255.0
encapsulation frame-relay
no fair-queue
frame-relay map ip 172.12.123.1 112 broadcast
frame-relay map ip 172.12.123.3 532 broadcast
frame-relay map ip 172.12.123.7 197 broadcast
!
interface Serial1
no ip address
shutdown
!
interface BRI0
no ip address
shutdown
isdn x25 static-tei 0
cdapi buffers regular 0
cdapi buffers raw 0
cdapi buffers large 0
!
ip kerberos source-interface any
ip classless
ip http server
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
transport input none
line aux 0
line vty 0 4
login
!
end

 

[plshlpme]

what state is the interface ? Up / Down ?
have you tried an alternate cable?

also is r2 showing dte side when you do a show controller?

 

[doktor]

Please post these printouts:

Router2#show frame-relay pvc interface serial 0
Router2#show frame-relay map
Router2#show frame-relay lmi
Router2#show interface serial 0

///doktor

 

[drbk563]

The status of the interface is UP/DOWN.
I have not tried another cable. However, since the status of the interface is UP/DOWN it's not a physical problem. Also when I issue a sh controller on R2. It does show DTE side.

Router2#sh controllers serial 0
HD unit 0, idb = 0x2B507C, driver structure at 0x2BC640
buffer size 1524 HD unit 0, V.35 DTE cable
cpb = 0xE2, eda = 0x4140, cda = 0x4000
RX ring with 16 entries at 0xE24000

 

[drbk563]

Thank You

show frame-relay pvc interface serial 0 (Router2)

PVC Statistics for interface Serial0 (Frame Relay DTE)

Active Inactive Deleted Static
Local 0 0 3 0
Switched 0 0 0 0
Unused 0 0 0 0

DLCI = 112, DLCI USAGE = LOCAL, PVC STATUS = DELETED, INTERFACE = Serial0

input pkts 10 output pkts 0 in bytes 484
out bytes 0 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 0 out bcast bytes 0
pvc create time 4d05h, last time pvc status changed 2d10h

DLCI = 197, DLCI USAGE = LOCAL, PVC STATUS = DELETED, INTERFACE = Serial0

input pkts 0 output pkts 0 in bytes 0
out bytes 0 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 0 out bcast bytes 0
pvc create time 4d05h, last time pvc status changed 2d10h

DLCI = 532, DLCI USAGE = LOCAL, PVC STATUS = DELETED, INTERFACE = Serial0

input pkts 0 output pkts 0 in bytes 0
out bytes 0 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 0 out bcast bytes 0
pvc create time 4d05h, last time pvc status changed 2d10h


Router2#show frame-relay map
Serial0 (up): ip 172.12.123.1 dlci 112(0x70,0x1C00), static,
broadcast,
CISCO, status deleted
Serial0 (up): ip 172.12.123.3 dlci 532(0x214,0x8440), static,
broadcast,
CISCO, status deleted
Serial0 (up): ip 172.12.123.7 dlci 197(0xC5,0x3050), static,
broadcast,
CISCO, status deleted

Router2#show frame-relay lmi

LMI Statistics for interface Serial0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 36514 Num Status msgs Rcvd 7
Num Update Status Rcvd 0 Num Status Timeouts 36506

Router2#show interface serial 0
Serial0 is up, line protocol is down
Hardware is HD64570
Internet address is 172.12.123.2/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY, loopback not set
Keepalive set (10 sec)
LMI enq sent 36517, LMI stat recvd 7, LMI upd recvd 0, DTE LMI down
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 1023 LMI type is CISCO frame relay DTE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0
Last input 2d10h, output 00:00:04, output hang never
Last clearing of "show interface" counters 4d05h
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
17 packets input, 647 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
54775 packets output, 718161 bytes, 0 underruns
0 output errors, 0 collisions, 12163 interface resets
0 output buffer failures, 0 output buffers swapped out
24356 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

 

[doktor]

It seems that the PVC's (Permanent Virtual Circuits)have been deleted in the Frame Relay Switch.
The DLCI gives the connection from the CPE router to the Frame Relay service providers first switch. The PVC is the connection all way through to the other site of your company.

The DLCI's are staically mapped to the IP addresses of the sites "in the other end" (OK).
frame-relay map ip 172.12.123.1 112 broadcast
frame-relay map ip 172.12.123.3 532 broadcast
frame-relay map ip 172.12.123.7 197 broadcast

It seem that the Frame Relay service provider has a problem.

DLCI = 532, DLCI USAGE = LOCAL, PVC STATUS = DELETED, INTERFACE = Serial0

///doktor

 

[drbk563]

I do not have a Frame Relay provider I am using my own Router as a Frame Relay switch. What can I do to correct the problem?


Thank You

 

[doktor]

I also need these prinouts from the "other" end :


show frame-relay map
show frame-relay lmi

Maybe you can also post the part of the config with
"frame-relay map ip 172.12.123.1 112 broadcast"
from one of the router that works!
///

 

[drbk563]

I did some testing and I believe that the physical serial interface might not be working. However, what I do not understand is that it was working before and then it just stops working. I connected another router to the suspicious interface and I got the same problem with protocol down. What do you all think?

Thanks

 

[drbk563]

The only way that the protocol goes up is if I shutdown the interface and then renable it again. However, after a few minutes the protocol goes down.

 

[doktor]

Maybe a clocking issue??

Also the keep-alive timing should be equally set in both ends.(10 sec).

///doktor

 

[drbk563]

The keep-alives ar set for every 10 sec on both ends. What else do you suggest?

 

[plshlpme]

well rotuer 2 is sending alot of packets towards the frame switch and not getting much back...
look at the output packet cound and LMI enq sent vs the received

what do those stats look like on the frame switch?
does the frame switch have one more serial available?

 

[plshlpme]

hae you run any debug?

debug frame-relay lmi

 

[drbk563]

Ok. I changed somethings around to see if the serial interface on the Frame Relay switch was the problem. Currently, Router1 is connected to S3 on FRS. Router2 is connected to S2 on FRS. Router3 is connected to S0 on FRS. Router7 is connected S1 on FRS. Router7 now cannot communicate with the FRS. I believe that something is wrong with S1. Below are all the configs for the Routers and FRS.

Router1

Serial0 is up, line protocol is up
Hardware is HD64570
Internet address is 172.12.123.1/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY, loopback not set
Keepalive set (10 sec)
LMI enq sent 8832, LMI stat recvd 8800, LMI upd recvd 0, DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 1023 LMI type is CISCO frame relay DTE
Broadcast queue 0/64, broadcasts sent/dropped 20/0, interface broadcasts 4
Last input 00:00:10, output 00:00:10, output hang never
Last clearing of "show interface" counters 1d00h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue :0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
8898 packets input, 149966 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
8975 packets output, 127230 bytes, 0 underruns
0 output errors, 0 collisions, 23 interface resets

Router2

Router2#sh int s0/0
Serial0/0 is up, line protocol is up
Hardware is PowerQUICC Serial
Internet address is 172.12.123.2/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY, loopback not set
Keepalive set (10 sec)
LMI enq sent 52894, LMI stat recvd 52897, LMI upd recvd 0, DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 1023 LMI type is CISCO frame relay DTE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 98/0, interface broadcasts 0
Last input 00:00:06, output 00:00:06, output hang never
Last clearing of "show interface" counters 6d03h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
126374 packets input, 4982145 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
53057 packets output, 694624 bytes, 0 underruns

Router3

Router3#sh int s0
Serial0 is up, line protocol is up
Hardware is HD64570
Internet address is 172.12.123.3/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY, loopback not set
Keepalive set (10 sec)
LMI enq sent 4644, LMI stat recvd 4304, LMI upd recvd 0, DTE LMI up
LMI enq recvd 14, LMI stat sent 0, LMI upd sent 0
LMI DLCI 1023 LMI type is CISCO frame relay DTE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 4/11, interface broadcasts 0
Last input 00:00:06, output 00:00:06, output hang never
Last clearing of "show interface" counters 1w2d
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
4405 packets input, 71378 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
4911 packets output, 67644 bytes, 0 underruns
0 output errors, 0 collisions, 148 interface resets

Router7

Router7#sh frame-relay lmi

LMI Statistics for interface Serial0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 1060 Num Status msgs Rcvd 0
Num Update Status Rcvd 0 Num Status Timeouts 1059

Router7#sh int s0
Serial0 is up, line protocol is down
Hardware is HD64570
Internet address is 172.12.123.7/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY, loopback not set
Keepalive set (10 sec)
LMI enq sent 1057, LMI stat recvd 0, LMI upd recvd 0, DTE LMI down
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 1023 LMI type is CISCO frame relay DTE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0
Last input 12:28:29, output 00:00:10, output hang never
Last clearing of "show interface" counters 02:57:52
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1158 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer

 

[drbk563]

When I run debug frame-relay int s1 which is the problematic interface. I get this >>>>>>>>

Frame_Relay_Switch#
12:31:59: Serial1(in): StEnq, myseq 229
12:31:59: RT IE 1, length 1, type 0
12:31:59: KA IE 3, length 2, yourseq 6 , myseq 0
12:31:59: Serial1(out): Status, myseq 230, yourseen 6, DCE down
12:32:09: Serial1(in): StEnq, myseq 230
12:32:09: RT IE 1, length 1, type 0
12:32:09: KA IE 3, length 2, yourseq 7 , myseq 0
12:32:09: Serial1(out): Status, myseq 231, yourseen 7, DCE down

 

[plshlpme]

and what does sh int s1 look like on your switch ?

 

[drbk563]

Frame_Relay_Switch#sh int s1
Serial1 is up, line protocol is down
Hardware is HD64570
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY, loopback not set
Keepalive set (10 sec)
LMI enq sent 0, LMI stat recvd 0, LMI upd recvd 0
LMI enq recvd 1993, LMI stat sent 1993, LMI upd sent 0, DCE LMI down
LMI DLCI 1023 LMI type is CISCO frame relay DCE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0
Last input 00:00:07, output 00:00:07, output hang never
Last clearing of "show interface" counters 14:00:35
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/2/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1158 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
2567 packets input, 33658 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

 

[helpdeskdan]

Was that a debug-frame-relay or a debug frame-relay lmi?

 

[drbk563]

That was a debug frame-relay.