3com 3031 Instruccion De Instalación
750
C
HAPTER
55: MPLS L2VPN C
ONFIGURATION
For FR, you can use the main interface or sub-interface to connect the CE
interface.
interface.
Configuring ATM interface
For a VLAN sub-interface, you should perform the following configuration in the
interface view.
interface view.
CAUTION: L2VPN support these types of interfaces: Ethernet
interface/sub-interface, serial interface and ATM interface/sub-interface.
interface/sub-interface, serial interface and ATM interface/sub-interface.
For VLAN, only the Ethernet sub-interface can server as CE interface. If a main
Ethernet interface is used as CE interface, its encapsulation type is Ethernet, not
VLAN, by default.
Ethernet interface is used as CE interface, its encapsulation type is Ethernet, not
VLAN, by default.
In L2VPN, each sub-interface can only be configured with one VC. If multiple VCs
have been configured, only the first one is valid.
have been configured, only the first one is valid.
Enabling MPLS
MPLS underlies MPLS L2VPN. Therefore, you should enable MPLS before
configuring the MPLS L2VPN parameters.
configuring the MPLS L2VPN parameters.
Perform the following configuration in the System View.
Configuring Static LSP
CCC makes use of static LSP to transparently transmit L2 packets over an SP
network. Therefore, two static LSPs must be configured on the two PEs and all the
in-between P routers, with each in one direction.
network. Therefore, two static LSPs must be configured on the two PEs and all the
in-between P routers, with each in one direction.
Configure FR LMI protocol type
fr lmi type { ansi | nonstandard | q933a }
Configure static or dynamic FR
address mapping
address mapping
fr map ip { protocol-address [ ip-mask ] |
default } dlci [ broadcast ] [ nonstandard
| ietf ]fr inarp [ ip ] [ dlci ]
Allocate VC for the interface
fr dlci dlci
Table 822 Configuring VLAN sub-interface
Operation
Command
Configure encapsulation type and
associated VLAN ID for Ethernet or Gigabit
Ethernet sub-interface
associated VLAN ID for Ethernet or Gigabit
Ethernet sub-interface
vlan-type dot1q vid vid
Table 821 Configuring FR interface
Operation
Command
Table 823 Enabling MPLS
Operation
Command
Configure LSR ID
mpls lsr-id X.X.X.X
Enable MPLS
mpls