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Cell-mode MPLS

I tried to implement cell-mode MPLS by connecting 3 routers with ATM interfaces. The traceroute shows label switching rather than VPI/VCI switching (atleast I was expecting to see that).

R0---R3---R2

R0 router:

interface Loop 0

ip add 1.1.1.1 255.255.255.255

ip ospf 1 area 0

!

int atm 1/0

no ip add

!

int atm 1/0.10 mpls

ip unnumbered Loop 0

mpls ip

ip ospf 1 area 0

!

R3 router:

interface Loop 0

ip add 2.2.2.2 255.255.255.255

ip ospf 1 area 0

!

int atm 1/0

no ip add

!

int atm 1/0.10 mpls

ip unnumbered Loop 0

mpls ip

ip ospf 1 area 0

!

int atm 2/0

no ip add

!

int atm 2/0.20 mpls

ip unnumbered Loop 0

mpls ip

ip ospf 1 area 0

R2 router:

interface Loop 0

ip add 3.3.3.3 255.255.255.255

ip ospf 1 area 0

!

int atm 1/0

no ip add

!

int atm 1/0.20 mpls

ip unnumbered Loop 0

mpls ip

ip ospf 1 area 0

!

2 REPLIES
Cisco Employee

Re: Cell-mode MPLS

Amit,

According to the following documents you are missing a few commands:

interface ATM1/0.10 mpls

ip unnumbered Loopback0

mpls atm control-vc 10 32

mpls atm vpi 10 vci-range 33-65535

mpls ip

end

http://www.cisco.com/en/US/tech/tk436/tk798/technologies_tech_note09186a008017492a.shtml#topic2

Regards

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
Community Member

Re: Cell-mode MPLS

Thank you for your reply but I think you can leave the control VC to 0/32 (by default,which is used for control).Also, VPI/VCI range can also be left to default.

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