Multilink frame relay

March 25, 2008 @ 5:09 pm · Filed under CCIE Study

Hi ccietester55
You need to configure the frame-relay switch for multilink frame-relay as well.
Example:
R1 = = = =Frame-relay ——R3
R1 is connected to the frame-relay switch with a “bundle” (ser 3/3 and 4/3 on the frame-relay switch) R3 is connected only once (ser 3/0 on the frame-relay switch)
! Frame-relay Switch

int ser3/0 no ip address encaps frame-relay frame-relay dce
!
interface mfr0 no ip address frame-relay intf-type dce
int ser 3/3 no ip addr encaps frame-relay mfr0
int ser 4/3 no ip addr encaps frame-relay mfr0
connect mfr mfr0 103 ser 3/0 301
HTH,
Pierre-Alex
—– Original Message —– From: “ccietester55 ccietester55″ To: Sent: Tuesday, March 25, 2008 3:25 AM Subject: Multilink frame relay
> I’ve been having a lot of trouble getting multilink frame relay to > work. I’ve set my test lab up as follows > R2 —DLCI 205— Frame Switch —DLCI 502— R5 > > In order to make sure I have the frame switch and DLCIs configured > correctly I first configure simple frame relay as follows: > > R2: > interface Serial0/1 > ip address 10.1.1.2 255.255.255.0 > encapsulation frame-relay > frame-relay interface-dlci 205 > > R5: > interface Serial0/1 > ip address 10.1.1.5 255.255.255.0 > encapsulation frame-relay > frame-relay interface-dlci 502 > > > This works fine. R2 can ping R5 and vice versa. So now I convert the > configuration to use multilink frame relay: > > R2: > interface MFR1 > ip address 10.1.1.2 255.255.255.0 > frame-relay interface-dlci 205 > ! > interface Serial0/1 > no ip address > encapsulation frame-relay MFR1 > > R5: > interface MFR1 > ip address 10.1.1.5 255.255.255.0 > frame-relay interface-dlci 502 > ! > interface Serial0/1 > no ip address > encapsulation frame-relay MFR1 > > As soon as I type in “encapsulation frame-relay MFR1″ on the physical > interface on each router the interface goes down and does not come > back up: > R2#sh int se0/1 > Serial0/1 is up, line protocol is down > > Just as an extra test I removed the frame relay switch from the middle > and connected the two routers via dual back-to-back serial cables. I > can get frame relay multilink working without a problem over the > back-to-back cables. > > Has anybody been able to get multilink frame relay working over a frame > switch? > > > > TIA, > > Ash. > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html

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