Frame Relay Back to Back + End to End KeepAlive EEK

FRAME RELAY BACK TO BACK

• 2 routers directly connected over the serial link running encap frame relay with no fr switch in between
• As there is no switch advertising dlci numbers the the listing will keep appearing as disabled
• The way to get around this is to disable the lmi probe

Commands

int s0/1
encap frame-relay
no keep-alive
frame-relay interface ( if you want to discover the other side via inverse arp)
or
frame-relay map ip 10.1.1.1 'dlci no'

note the dlci number will be the same both side as there is only the one dlci.
The config is the exact both side apart from ip.


EEK

• EEK (end to end keepalives)It is an add on that checks the status of link end to end so from dte to dte not just  to dce on the frame-relay switch.
• This feature is supported natively in LMi but is not supported in situation for example in non standard frame-relay setups for example your frame-relay is being encapsulated over the service provider. 
• LMI also runs over there control specified signalling channels while EEK runs on the dlci
• Encapsulation of keepalive packets is proprietary; therefore, the feature is available only on Cisco devices 

 MODES

•In bidirectional mode, both the send side and receive side are enabled, and the device sends out and waits for replies to keepalive requests, and also waits for and replies to keepalive requests.

•In request mode, only the send side is enabled, and the device sends out and waits for replies to its keepalive requests.

•In reply mode, only the receive side is enabled, and the device waits for and replies to keepalive requests.

•In passive-reply mode, the device only responds to keepalive requests, but does not set any timers or keep track of any events.

COMMANDS

 map-class frame-relay EEK
 frame-relay end-to-end keepalive mode request
!
to apply you can use the
interface Serial0/0/0
 ip address 10.229.254.1 255.255.255.0
 encapsulation frame-relay
 no fair-queue
 frame-relay class EEK
end
frame-relay class command this will apply to the interface and to all subinterface if
you only want it on a particular dlci
go to the dlci and enter the command
frame-relay class 'name'
this will apply it just to the dlci.

now on the sh frame-relay pvc you see the addess eek up. The monitor is on the dlci

DLCI = 405, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE (EEK UP), INTERFACE = Serial0/0/0
  input pkts 1             output pkts 2            in bytes 34
  out bytes 41             dropped pkts 0           in pkts dropped 0
  out pkts dropped 0                out bytes dropped 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 1         out bcast bytes 34
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
  pvc create time 00:00:04, last time pvc status changed 00:00:04