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20-19
Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 20 Configuring L2 Virtual Private Networks
Configuration Tasks for L2VPN
Example 20-9 configures OAM cell emulation for ATM AAL5 SDU support over MPLS in VC class
configuration mode. The VC class is then applied to an interface.
Example 20-9 OAM Cell Emulation for ATM AAL5 SDU Support over MPLS in VC Class Configuration
Mode—VC Class Applied to an Interface
vc-class atm oamclass
encapsulation aal5
oam-ac emulation-enable 30
oam-pvc manage
interface atm1/0
class-int oamclass
pvc 1/200 l2transport
xconnect 13.13.13.13 100 encapsulation mpls
Example 20-10 shows how to configure OAM cell emulation for ATM AAL5 over MPLS in VC class
configuration mode. The VC class is then applied to a PVC.
Example 20-10 OAM Cell Emulation for ATM AAL5 SDU Support over MPLS in VC Class Configuration
Mode—VC Class Applied to a PVC
vc-class atm oamclass
encapsulation aal5
oam-ac emulation-enable 30
oam-pvc manage
interface atm1/0
pvc 1/200 l2transport
class-vc oamclass
xconnect 13.13.13.13 100 encapsulation mpls
Example 20-11 shows how to configure OAM cell emulation for ATM AAL5 over MPLS in VC class
configuration mode. The VC class is then applied to an interface. One PVC is configured with OAM cell
emulation at an AIS rate of 10. That PVC uses the AIS rate of 10 instead of 30.
Example 20-11 OAM Cell Emulation for ATM AAL5 SDU Support over MPLS in VC Class Configuration
Mode—VC Class Applied to an Interface
vc-class atm oamclass
encapsulation aal5
oam-ac emulation-enable 30
oam-pvc manage
interface atm1/0
class-int oamclass
pvc 1/200 l2transport
oam-ac emulation-enable 10
xconnect 13.13.13.13 100 encapsulation mpls
Configuring Ethernet over MPLS
Ethernet over MPLS works by encapsulating Ethernet protocol data units (PDUs) in MPLS packets and
forwarding them across the MPLS network. Each PDU is transported as a single packet. Several methods
exists for configuring Ethernet over MPLS:
• VLAN mode—Transports Ethernet traffic from a source 802.1Q VLAN to a destination 802.1Q
VLAN over a core MPLS network.