Hi i have a 6500 terminating frame-relay. Recently we consolidated some T1 frame circuits from one T3 to another. While moving these circuits to the new interface on the new T3, we made sure to configure the new interface excatly like the old interface and nothing changed with the CPE on the other end, some circutis moved over with no issue to the new T3/interface while others didn't. I would say for every 8 to 10 moved 2 gave been giving us issues.
The issue/strangeness is as follows, the interface appears to be physically up and protocol is up, so its in up/up state however it never passes traffic. When i looked at this closely i notice that LMI was being recieved but not sent from the show int command, see below for output. Then i also notice that inverse arp was not working and there was no dynamic dlci map on my end. To troubleshoot i manually added the map with the frame-relay map ip command but this didn't help, i couldn't ping the remote side and no traffic was passed on that interface while again showin up/up. I did a shut/no shut on the interface and nothing. I did notice that when i removed then added frame-relay intf-type dce it would start to send lmi but again it would no pass traffic. Now when i called Verizon to move that T1 back to the old interface which i left intact aside from the ip address statement it worked great, the interface showed up/up the dynamic dlci mapping was there and it passed traffic.
On my end these frame-relay lines terminate on flexwans and the issue happened on more than one flexwan. The only way i could get these problematic circutis to work was to changed them to PPP on the new interface/T3 which caused it to pass traffic with no issues.
This is a strange one and im really not sure what the issue is, below is the output related to the problem with some debug info.
thanks for any help, paul
8 0 2 port adapter FlexWAN WS-X6182-2PA SAD0651041B
9 0 2 port adapter FlexWAN WS-X6182-2PA SAD063002DK
10 0 2 port adapter FlexWAN WS-X6182-2PA SAD07100045
11 0 2 port adapter FlexWAN WS-X6182-2PA JAB080209QR
12 0 2 port adapter FlexWAN WS-X6182-2PA SAD071703E7
Customer router config:
interface Serial9/0/0/8:1
bandwidth 1536
ip address x.x.x.249 255.255.255.252
encapsulation frame-relay IETF
fair-queue
frame-relay interface-dlci 500
frame-relay lmi-type ansi
frame-relay intf-type dce
interface Serial0
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
frame-relay lmi-type ansi
!
interface Serial0.1 point-to-point
ip address x.x.x.250 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 500 IETF
6500 terminating interface:
interface Serial9/0/0/8:1
ip address x.x.x..249 255.255.255.252
encapsulation frame-relay IETF
no fair-queue
frame-relay interface-dlci 500
frame-relay lmi-type ansi
frame-relay intf-type dce
!
Serial9/0/0/8:1 is up, line protocol is up
Hardware is CT3
Internet address is x.x.x.249/30
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY IETF, crc 16, loopback not set
Keepalive set (10 sec)
LMI enq sent 0, LMI stat recvd 0, LMI upd recvd 0 ß not sending lmi
LMI enq recvd 710, LMI stat sent 710, LMI upd sent 0, DCE LMI up
LMI DLCI 0 LMI type is ANSI Annex D frame relay DCE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 12/0, interface broadcasts 0
Last input 00:00:03, output 00:00:03, output hang never
Last clearing of "show interface" counters 3w0d
Input queue: 0/75/4/0 (size/max/drops/flushes); Total output drops: 55916
Queueing strategy: VIP-based fair queuing
debug frame-relay lmi int ser9/0/0/8:1
SLOT 9/0: Mar 15 11:26:03: %SYS-2-MALLOCFAIL: Memory allocation of 65592 bytes failed
from 0x6031FEAC, alignment 32
Pool: Processor Free: 84904 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool
-Process= "VIP Encap IPC Background", ipl= 0, pid= 32
-Traceback= 6017FA60 601849B8 6031FEB4 6032017C 603BF524 603BF8E0
Mar 15 11:26:05: %LINK-3-UPDOWN: Interface Serial9/0/0/8:1, changed state to up
Mar 15 11:26:06: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial9/0/0/8:1, cha
nged state to up
Mar 15 11:26:58: %SYS-5-CONFIG_I: Configured from console by pastaff onvty2 (209.213.
64.46)
Mar 15 11:27:17: %SYS-5-CONFIG_I: Configured from console by pastaff onvty2 (209.213.
64.46)
Mar 15 11:28:23: Serial9/0/0/8:1(in): StEnq, myseq 13
Mar 15 11:28:23: RT IE 1, length 1, type 1
Mar 15 11:28:23: KA IE 3, length 2, yourseq 33, myseq 13
Mar 15 11:28:23: Serial9/0/0/8:1(out): Status, myseq 14, yourseen 33, DCE up
Mar 15 11:28:33: Serial9/0/0/8:1(in): StEnq, myseq 14
Mar 15 11:28:33: RT IE 1, length 1, type 1
Mar 15 11:28:33: KA IE 3, length 2, yourseq 34, myseq 14
Mar 15 11:28:33: Serial9/0/0/8:1(out): Status, myseq 15, yourseen 34, DCE up
Mar 15 11:28:43: Serial9/0/0/8:1(in): StEnq, myseq 15
Mar 15 11:28:43: RT IE 1, length 1, type 1
Mar 15 11:28:43: KA IE 3, length 2, yourseq 35, myseq 15
Mar 15 11:28:43: Serial9/0/0/8:1(out): Status, myseq 16, yourseen 35, DCE up
Mar 15 11:28:53: Serial9/0/0/8:1(in): StEnq, myseq 16
Mar 15 11:28:53: RT IE 1, length 1, type 1
Mar 15 11:28:53: KA IE 3, length 2, yourseq 36, myseq 16
Mar 15 11:28:53: Serial9/0/0/8:1(out): Status, myseq 17, yourseen 36, DCE up
Debug packet
Mar 15 12:05:46: broadcast dequeue
Mar 15 12:05:49: broadcast dequeue
Mar 15 12:05:52: broadcast dequeue
Cisco Internetwork Operating System Software
IOS (tm) s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(18)SXF14,
RELEASE SOFTWARE (fc1)
The issue/strangeness is as follows, the interface appears to be physically up and protocol is up, so its in up/up state however it never passes traffic. When i looked at this closely i notice that LMI was being recieved but not sent from the show int command, see below for output. Then i also notice that inverse arp was not working and there was no dynamic dlci map on my end. To troubleshoot i manually added the map with the frame-relay map ip command but this didn't help, i couldn't ping the remote side and no traffic was passed on that interface while again showin up/up. I did a shut/no shut on the interface and nothing. I did notice that when i removed then added frame-relay intf-type dce it would start to send lmi but again it would no pass traffic. Now when i called Verizon to move that T1 back to the old interface which i left intact aside from the ip address statement it worked great, the interface showed up/up the dynamic dlci mapping was there and it passed traffic.
On my end these frame-relay lines terminate on flexwans and the issue happened on more than one flexwan. The only way i could get these problematic circutis to work was to changed them to PPP on the new interface/T3 which caused it to pass traffic with no issues.
This is a strange one and im really not sure what the issue is, below is the output related to the problem with some debug info.
thanks for any help, paul
8 0 2 port adapter FlexWAN WS-X6182-2PA SAD0651041B
9 0 2 port adapter FlexWAN WS-X6182-2PA SAD063002DK
10 0 2 port adapter FlexWAN WS-X6182-2PA SAD07100045
11 0 2 port adapter FlexWAN WS-X6182-2PA JAB080209QR
12 0 2 port adapter FlexWAN WS-X6182-2PA SAD071703E7
Customer router config:
interface Serial9/0/0/8:1
bandwidth 1536
ip address x.x.x.249 255.255.255.252
encapsulation frame-relay IETF
fair-queue
frame-relay interface-dlci 500
frame-relay lmi-type ansi
frame-relay intf-type dce
interface Serial0
no ip address
no ip directed-broadcast
encapsulation frame-relay IETF
frame-relay lmi-type ansi
!
interface Serial0.1 point-to-point
ip address x.x.x.250 255.255.255.252
no ip directed-broadcast
frame-relay interface-dlci 500 IETF
6500 terminating interface:
interface Serial9/0/0/8:1
ip address x.x.x..249 255.255.255.252
encapsulation frame-relay IETF
no fair-queue
frame-relay interface-dlci 500
frame-relay lmi-type ansi
frame-relay intf-type dce
!
Serial9/0/0/8:1 is up, line protocol is up
Hardware is CT3
Internet address is x.x.x.249/30
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY IETF, crc 16, loopback not set
Keepalive set (10 sec)
LMI enq sent 0, LMI stat recvd 0, LMI upd recvd 0 ß not sending lmi
LMI enq recvd 710, LMI stat sent 710, LMI upd sent 0, DCE LMI up
LMI DLCI 0 LMI type is ANSI Annex D frame relay DCE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 12/0, interface broadcasts 0
Last input 00:00:03, output 00:00:03, output hang never
Last clearing of "show interface" counters 3w0d
Input queue: 0/75/4/0 (size/max/drops/flushes); Total output drops: 55916
Queueing strategy: VIP-based fair queuing
debug frame-relay lmi int ser9/0/0/8:1
SLOT 9/0: Mar 15 11:26:03: %SYS-2-MALLOCFAIL: Memory allocation of 65592 bytes failed
from 0x6031FEAC, alignment 32
Pool: Processor Free: 84904 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool
-Process= "VIP Encap IPC Background", ipl= 0, pid= 32
-Traceback= 6017FA60 601849B8 6031FEB4 6032017C 603BF524 603BF8E0
Mar 15 11:26:05: %LINK-3-UPDOWN: Interface Serial9/0/0/8:1, changed state to up
Mar 15 11:26:06: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial9/0/0/8:1, cha
nged state to up
Mar 15 11:26:58: %SYS-5-CONFIG_I: Configured from console by pastaff onvty2 (209.213.
64.46)
Mar 15 11:27:17: %SYS-5-CONFIG_I: Configured from console by pastaff onvty2 (209.213.
64.46)
Mar 15 11:28:23: Serial9/0/0/8:1(in): StEnq, myseq 13
Mar 15 11:28:23: RT IE 1, length 1, type 1
Mar 15 11:28:23: KA IE 3, length 2, yourseq 33, myseq 13
Mar 15 11:28:23: Serial9/0/0/8:1(out): Status, myseq 14, yourseen 33, DCE up
Mar 15 11:28:33: Serial9/0/0/8:1(in): StEnq, myseq 14
Mar 15 11:28:33: RT IE 1, length 1, type 1
Mar 15 11:28:33: KA IE 3, length 2, yourseq 34, myseq 14
Mar 15 11:28:33: Serial9/0/0/8:1(out): Status, myseq 15, yourseen 34, DCE up
Mar 15 11:28:43: Serial9/0/0/8:1(in): StEnq, myseq 15
Mar 15 11:28:43: RT IE 1, length 1, type 1
Mar 15 11:28:43: KA IE 3, length 2, yourseq 35, myseq 15
Mar 15 11:28:43: Serial9/0/0/8:1(out): Status, myseq 16, yourseen 35, DCE up
Mar 15 11:28:53: Serial9/0/0/8:1(in): StEnq, myseq 16
Mar 15 11:28:53: RT IE 1, length 1, type 1
Mar 15 11:28:53: KA IE 3, length 2, yourseq 36, myseq 16
Mar 15 11:28:53: Serial9/0/0/8:1(out): Status, myseq 17, yourseen 36, DCE up
Debug packet
Mar 15 12:05:46: broadcast dequeue
Mar 15 12:05:49: broadcast dequeue
Mar 15 12:05:52: broadcast dequeue
Cisco Internetwork Operating System Software
IOS (tm) s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(18)SXF14,
RELEASE SOFTWARE (fc1)
