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Riverstone Networks RS Switch Router User Guide Release 8.0 17-61
MPLS Configuration Configuring L2 Tunnels
This section describes how to configure the ingress, transit, and egress LSRs for a static L2 LSP, as shown in
Figure 17-13.
Figure 17-13 Static L2 path (unidirectional)
Ingress LSR Configuration
To configure an L2 static path on R1:
1.
Use the
mpls create l2-policy
command to specify which L2 frames will be subject to label
mapping and forwarding. In addition to specifying the incoming and outgoing ports, you can also
specify the following:
-
destination MAC address or mask
-
source MAC address or mask
-
VLAN ID
-
802.1p priority of the incoming packet
2.
Use the
mpls create l2-static-path
command to configure the next hop MAC address and
one or more label values to be added (pushed) onto the top of the label stack.
3.
Use the
mpls set l2-static-path
command to apply the L2 policy to the L2 static path.
For example, the following commands create the static path TO-R3 for frames with the source MAC address
000000:01e000 received on port gi.2.1.
! Create policy P1 for frames with source MAC 000000:01e000 and VLAN ID 1
mpls create l2-policy P1 dst-mac any src-mac 000000:01e000 vlan 1 in-port-list gi.2.1
out-port-list gi.3.1
! Create static path TO-R3 to MAC a000285:057900 with label ‘100’ pushed onto the top of the label stack
mpls create l2-static-path TO-R3 next-hop-mac 000285:057900 push 100
! Apply L2 policy P1 to L2 static path TO-R3
mpls set l2-static-path TO-R3 policy P1
R1
R2 R3
gi.2.1
gi.3.1 gi.5.1 gi.6.1gi.4.1
gi.7.1
Label = 100
Label = 200
Label removed
Ingress LSR Transit LSR Egress LSR