RE: MFR interface - frame-relay encapsulation

From: CCIE 19999 (ccie@iprimus.com.au)
Date: Fri Aug 10 2007 - 04:07:14 ART


Hi Tom,

What are you trying to say? If two routers are connected back to back over
serial ports, the encapsulation cannot be frame relay? If this is what you
are saying, it's wrong.

You can connect 2 routers back to back and use the frame relay encapsulation
as the sample config provided by Bit will work.

I suppose, the config you have pasted does have the 'no keepalive' command
missing.

My 2c,
Shine

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of tom
sun
Sent: Friday, 10 August 2007 4:25 PM
To: Bit Gossip
Cc: ccielab@groupstudy.com
Subject: Re: MFR interface - frame-relay encapsulation

hi,gossip

     if you want to use frame-relay encapsulation ,between both routers must
be frame-relay switch !!because frame routed in frame-relay switch,routers
must learn dlci from frame-relay switch !

R1#show run int s1
Building configuration...

Current configuration : 76 bytes
!
interface Serial1
 ip address 1.1.1.1 255.255.255.0
 clockrate 64000

R2#show run int s1
Building configuration...

Current configuration : 59 bytes
!
interface Serial1
 ip address 1.1.1.2 255.255.255.0
end

R2#

R1#ping 1.1.1.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/32 ms

R1#show run int s1
Building configuration...

Current configuration : 173 bytes
!
interface Serial1
 ip address 1.1.1.1 255.255.255.0
 encapsulation frame-relay
 clockrate 64000
 frame-relay map ip 1.1.1.2 555 broadcast
 no frame-relay inverse-arp
end

Serial1 (up): ip 1.1.1.2 dlci 555(0x22B,0x88B0), static,
              broadcast,
              CISCO, status deleted

R2#show run int s1
Building configuration...

Current configuration : 156 bytes
!
interface Serial1
 ip address 1.1.1.2 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 1.1.1.1 555 broadcast
 no frame-relay inverse-arp
end
R2#show frame-relay map
Serial1 (up): ip 1.1.1.1 dlci 555(0x22B,0x88B0), static,
              broadcast,
              CISCO, status deleted
  above config ,first i use dhlc to encapsulation ,confirm my netwok it ok
.,then change to frame-relay encapsulation !!!!!

On 8/9/07, Bit Gossip <bit.gossip@chello.nl> wrote:
>
> Hi Tom,
> back-to-back frame-relay in the simplest possible form:
>
> R4#show running-config int s0/1
> Building configuration...
>
> Current configuration : 180 bytes
> !
> interface Serial0/1
> ip address 155.55.55.4 255.255.255.0
> encapsulation frame-relay
> no keepalive
> frame-relay map ip 155.55.55.5 555 broadcast
> no frame-relay inverse-arp
> end
>
> R5#show frame-relay map
> Serial0/1 (up): ip 155.55.55.4 dlci 555(0x22B,0x88B0), static,
> broadcast,
> CISCO
> R5#show run int s0/1
> Building configuration...
>
> Current configuration : 199 bytes
> !
> interface Serial0/1
> ip address 155.55.55.5 255.255.255.0
> encapsulation frame-relay
> no keepalive
> clock rate 128000
> frame-relay map ip 155.55.55.4 555 broadcast
> no frame-relay inverse-arp
> end
>
> R5#ping 155.55.55.4
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 155.55.55.4, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 1
>
> ----- Original Message -----
> From: "tom sun" <tomsun2007@gmail.com>
> To: "Antonio Soares" <amsoares@netcabo.pt>
> Cc: "Gadad, Milind" <m-gadad1@ti.com>; <ccielab@groupstudy.com>
> Sent: Friday, August 10, 2007 6:00 AM
> Subject: Re: MFR interface - frame-relay encapsulation
>
>
> >i think ,if 2 routers use back-to-back mode to connect themselves .it
> does
> > not support frame-relay encapsulation ,maybe you can select hdlc or ppp
> > !!!
> >
> >
> > On 8/9/07, Antonio Soares <amsoares@netcabo.pt> wrote:
> >>
> >> I have here a working config. I used dynamips:
> >>
> >> +++++++++++++++++++++++++++++
> >> R1:
> >> !
> >> interface MFR12
> >> no ip address
> >> frame-relay intf-type dce
> >> !
> >> interface MFR12.1 point-to-point
> >> ip address 12.12.12.1 255.255.255.0
> >> frame-relay interface-dlci 102
> >> !
> >> interface Serial1/0
> >> no ip address
> >> encapsulation frame-relay MFR12
> >> serial restart-delay 0
> >> no arp frame-relay
> >> !
> >> interface Serial1/1
> >> no ip address
> >> encapsulation frame-relay MFR12
> >> serial restart-delay 0
> >> no arp frame-relay
> >> !
> >> +++++++++++++++++++++++++++++
> >> R2:
> >> !
> >> interface MFR12
> >> no ip address
> >> !
> >> interface MFR12.1 point-to-point
> >> ip address 12.12.12.2 255.255.255.0
> >> frame-relay interface-dlci 102
> >> !
> >> interface Serial1/0
> >> no ip address
> >> encapsulation frame-relay MFR12
> >> serial restart-delay 0
> >> no arp frame-relay
> >> !
> >> interface Serial1/1
> >> no ip address
> >> encapsulation frame-relay MFR12
> >> serial restart-delay 0
> >> no arp frame-relay
> >> !
> >> +++++++++++++++++++++++++++++
> >> R1#
> >> R1#ping 12.12.12.2
> >>
> >> Type escape sequence to abort.
> >> Sending 5, 100-byte ICMP Echos to 12.12.12.2, timeout is 2 seconds:
> >> !!!!!
> >> Success rate is 100 percent (5/5), round-trip min/avg/max = 92/122/192
> ms
> >> R1#
> >> +++++++++++++++++++++++++++++
> >> R1#sh frame multi
> >> Bundle: MFR12, State = up, class = A, fragmentation disabled
> >> BID = MFR12
> >> Bundle links:
> >> Serial1/1, HW state = up, link state = Up, LID = Serial1/1
> >> Serial1/0, HW state = up, link state = Up, LID = Serial1/0
> >>
> >> R1#
> >> +++++++++++++++++++++++++++++
> >>
> >>
> >> Regards,
> >>
> >> Antonio Soares
> >> CCIE #18473, CCNP, CCIP
> >>
> >> -----Original Message-----
> >> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> >> Gadad, Milind
> >> Sent: quinta-feira, 9 de Agosto de 2007 18:05
> >> To: ccielab@groupstudy.com
> >> Subject: MFR interface - frame-relay encapsulation
> >>
> >> Can we connect 2 routers back to back with frame-relay encapsulation? I
> >> don't have a frame-rely switch in between the two routers.
> >>
> >> _______________________________________________________________________
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> >>
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> >
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