01-25-2012 06:42 AM - edited 03-04-2019 03:01 PM
Hi
I have two frame-relay link configured as MFR on cisco 2821 with IOS c2800nm-advipservicesk9-mz.124-19.bin.On CE end its showig UP/Down but at PE end its showing down/down, Searched cisco site but found only one document but even could help me out.
CE End Config :
Links connected on WIC-2T
!
interface MFR1
no ip address
ip flow ingress
encapsulation frame-relay IETF
frame-relay lmi-type ansi
!
interface MFR1.101 point-to-point
ip address x.x.x.x 255.255.255.252
ip flow ingress
snmp trap link-status
frame-relay interface-dlci 101 IETF
!
interface Serial0/1/0
no ip address
ip flow ingress
encapsulation frame-relay MFR1
no arp frame-relay
!
interface Serial0/1/1
no ip address
ip flow ingress
encapsulation frame-relay MFR1
no arp frame-relay
============
AT CE END
sh frame-relay multilink detailed
Bundle: MFR1, State = down, class = A, fragmentation disabled
BID = MFR1
No. of bundle links = 2, Peer's bundle-id =
Rx buffer size = 12000, Lost frag timeout = 200
Bundle links:
Serial0/1/1, HW state = up, link state = Add_sent, LID = Serial0/1/1
Cause code = bundle link idle, Ack timer = 4, Hello timer = 10,
Max retry count = 2, Current count = 0,
Peer LID = , RTT = 0 ms
Statistics:
Add_link sent = 30346, Add_link rcv'd = 0,
Add_link ack sent = 0, Add_link ack rcv'd = 0,
Add_link rej sent = 0, Add_link rej rcv'd = 0,
Remove_link sent = 4, Remove_link rcv'd = 0,
Remove_link_ack sent = 0, Remove_link_ack rcv'd = 0,
Hello sent = 0, Hello rcv'd = 0,
Hello_ack sent = 0, Hello_ack rcv'd = 0,
outgoing pak dropped = 0, incoming pak dropped = 0
Serial0/1/0, HW state = up, link state = Add_sent, LID = Serial0/1/0
Cause code = bundle link idle, Ack timer = 4, Hello timer = 10,
Max retry count = 2, Current count = 0,
Peer LID = , RTT = 0 ms
Statistics:
Add_link sent = 30359, Add_link rcv'd = 0,
Add_link ack sent = 0, Add_link ack rcv'd = 0,
Add_link rej sent = 0, Add_link rej rcv'd = 0,
Remove_link sent = 6, Remove_link rcv'd = 0,
Remove_link_ack sent = 0, Remove_link_ack rcv'd = 0,
Hello sent = 0, Hello rcv'd = 0,
Hello_ack sent = 0, Hello_ack rcv'd = 0,
outgoing pak dropped = 0, incoming pak dropped = 0
====================================================================================================
PE Config
interface MFR996
no ip address
encapsulation frame-relay IETF
logging event subif-link-status
logging event dlci-status-change
frame-relay multilink bandwidth-class c 1
frame-relay lmi-type ansi
frame-relay intf-type dce
!
interface MFR996.101 point-to-point
ip vrf forwarding V224:xxx_A_1138xxx
ip address x.x.x.x 255.255.255.252
frame-relay interface-dlci 101 IETF
!
interface Serial8/0/16:0
no ip address
encapsulation frame-relay MFR996
no arp frame-relay
!
interface Serial8/0/18:0
no ip address
encapsulation frame-relay MFR996
no arp frame-relay
============
AT PE END
show frame-relay multilink MFR996 detailed
Bundle: MFR996, State = down, class = C (threshold 1), fragmentation disabled
BID = MFR996
No. of bundle links = 2, Peer's bundle-id =
Rx buffer size = 24096, Lost frag timeout = 200
Bundle links:
Serial8/0/18:0, HW state = down, link state = Down, LID = Serial8/0/18:0
Cause code = bundle link idle, Ack timer = 4, Hello timer = 10,
Max retry count = 2, Current count = 0,
Peer LID = , RTT = 0 ms
Statistics:
Add_link sent = 0, Add_link rcv'd = 0,
Add_link ack sent = 0, Add_link ack rcv'd = 0,
Add_link rej sent = 0, Add_link rej rcv'd = 0,
Remove_link sent = 0, Remove_link rcv'd = 0,
Remove_link_ack sent = 0, Remove_link_ack rcv'd = 0,
Hello sent = 0, Hello rcv'd = 0,
Hello_ack sent = 0, Hello_ack rcv'd = 0,
outgoing pak dropped = 0, incoming pak dropped = 0
Serial8/0/16:0, HW state = down, link state = Down, LID = Serial8/0/16:0
Cause code = bundle link idle, Ack timer = 4, Hello timer = 10,
Max retry count = 2, Current count = 0,
Peer LID = , RTT = 0 ms
Statistics:
Add_link sent = 0, Add_link rcv'd = 0,
Add_link ack sent = 0, Add_link ack rcv'd = 0,
Add_link rej sent = 0, Add_link rej rcv'd = 0,
Remove_link sent = 0, Remove_link rcv'd = 0,
Remove_link_ack sent = 0, Remove_link_ack rcv'd = 0,
Hello sent = 0, Hello rcv'd = 0,
Hello_ack sent = 0, Hello_ack rcv'd = 0,
outgoing pak dropped = 0, incoming pak dropped = 0
hope to get some soution from cisco technocrats
01-25-2012 06:58 AM
Hello,
I am not very familiar with MFR but what I find odd is this output on your PE:
Serial8/0/18:0, HW state = down, link state = Down, LID = Serial8/0/18:0
Serial8/0/16:0, HW state = down, link state = Down, LID = Serial8/0/16:0
This looks as if the interfaces or the subinterfaces themselves were not operational, and hence the MFR bundle also cannot work. Are the corresponding physical interfaces activated and properly configured? Is this running some T or E line?
Best regards,
Peter
01-25-2012 07:02 AM
Thanks Peter for jumping in ,Even I have noticed the same thing and informed service provider and got follwoing reply from SP :
"The only way we can get the PE interfaces to come up, is when loops are applied. Once the circuit is patched through to the CE, both Serial interfaces stay down. I've no idea why the CE interfaces are up/down, and the PE interfaces are down/down. I've check the controllers for both interfaces, and they both are showing "Receiver has loss of frame". Any ideas what might be causing this? The controllers are configured with Internal clock source, and no-crc4. I've already changed these settings, but it doesn't make any difference"
01-25-2012 07:06 AM
Hello,
The logical question is whether the CSU/DSU at the PE site is correctly connected and operating. At least the interface should be in up/down - a Serial interface in the down/down state means that there is most probably a physical layer fault.
Do you have an overview of how the physical interconnection between CE and PE exactly looks like? Would it be possible to post it here as a picture?
Thanks!
Best regards,
Peter
01-27-2012 01:59 AM
The link is come up and it was the problem with the service provider modem settings .
01-27-2012 02:14 AM
Hello,
So you're saying it is working now? Great!
Best regards,
Peter
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