3com 3031 Instruccion De Instalación

752

HAPTER

55: MPLS L2VPN C

ONFIGURATION

CAUTION: A remote CCC connection uses its LSP in an exclusive way.

Therefore, two static LSPs (with each in one direction) must be configured for each
remote CCC connection, rather than having two CCC connections share the same
static LSP. A static LSP that has been used by a remote CCC connection cannot be
used for other purposes like carrying IP or BGP/MPLS VPN data. For this reason,
when creating a static LSP for a CCC connection, you are recommended to assign
an IP address beyond the local network to the FEC of the CCC connection to
prevent the likelihood of selecting the LSP for routing.

Configuration of MPLS
L2VPN in SVC Mode

Perform the following tasks to configure SVC on a PE:

■

Configure interface

■

Enable MPLS, MPLS LDP

■

Enable MPLS L2VPN

■

Configure PE-PE tunnel

■

Create SVC connection

Refer to “Configuration of MPLS L2VPN in CCC Mode” on page 749 for the first
three steps.

Configuring PE-PE

Tunnel

Current two types of tunnels are available, GRE tunnel and LSP tunnel.

Configuring GRE tunnel

Configuring LSP tunnel

CAUTION: Since LSP is created by MPLS according to routing information, to
create a LSP to the destination address, first make sure host routing information of
every PE is transmitted to the peer by routing protocol.

Table 827 Configuring GRE tunnel

Operation

Command

Create a tunnel interface

Interface tunnel num

Configure tunnel source address (tunnel
interface view)

source X.X.X.X

Configure tunnel destination address
(tunnel interface view)

destination X.X.X.X

Table 828 Configuring LSP tunnel

Operation

Command

Configure LSP creation policy

lsp-trigger { all | ip-prefix

ip-prefix }