Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 455)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 431
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MPLS over GRE tunnel
2
Configuration example
To configure MPLS over a GRE tunnel, first enable an interface as an MPLS interface, and then
configure the MPLS tunnel and enable LDP.
Brocade(config)# router mpls
Brocade(config-mpls)# mpls-interface e1/1
Brocade(config-mpls-if-e1000-1/1)# ldp-enable
Brocade(config-mpls-if-e1000-1/1)# mpls-interface tunnel 200
Brocade(config-mpls-if-e1000-1/1)# ldp-enable
Syntax: mpls-interface tunnel tunnel-id
The tunnel-id variable is a number between 1 and 8192 (the default value is 256). The maximum
number of GRE tunnels for the system can be changed by entering the system-max gre-tunnels
command.
Syntax: system-max gre-tunnels number
Router A configuration
Router A is the LDP LSP ingress router. The user needs to configure a routing instance, which in this
example is OSPF. Next, the user configures the loopback address, the Ethernet interface, and then
the MPLS tunnel with LDP enabled. See
Figure 50 .