Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide - Manual (Page 85)

If you use a topology group:
• The master VLAN must contain the ring interfaces. The ports must be tagged, since they will be
shared by multiple VLANs.
• The member VLAN for a customer must contain the two ring interfaces and the interfaces for the
customer. Since these interfaces are shared with the master VLAN, they must be tagged. Do not add
another customer interfaces to the VLAN.
For more information about topology groups, refer to Topology groups on page 69.
Refer to MRP CLI example on page 91 for the configuration commands required to implement the
MRP configuration shown in Figure 10 .
Metro Ring Protocol configuration
To configure Metro Ring Protocol (MRP), perform the following tasks. You need to perform the first task
on only one of the nodes. Perform the remaining tasks on all the nodes.
NOTE
There are no new commands or parameters to configure MRP with shared interfaces (MRP Phase 2).
• Disable one of the ring interfaces. This prevents a Layer 2 loop from occurring while you are
configuring the devices for MRP.
• Add an MRP ring to a port-based VLAN. When you add a ring, the CLI changes to the configuration
level for the ring, where you can perform the following tasks.
‐ Optionally, specify a name for the ring.
‐ On the master node only, enable the device to be the master for the ring. Each ring can
have only one master node.
‐ Specify the MRP interfaces. Each device has two interfaces to an MRP ring.
‐ Optionally, change the hello time and the preforwarding time. These parameters control how
quickly failover occurs following a change in the state of a link in the ring.
‐ Enable the ring.
• Optionally, add the ring VLAN to a topology group to add more VLANs to the ring. If you use a
topology group, make sure you configure MRP on the group master VLAN. Refer to Topology groups
on page 69.
• Re-enable the interface you disabled to prevent a Layer 2 loop. Once MRP is enabled, MRP will
prevent the Layer 2 loop.
• On FCX devices, when configuring MRP-1 or MRP-2 rings on a VLAN, using the metro-rings
command in addition to the metro-ring command is highly recommended. Since these devices do
not support mac-range filtering, the metro-rings command greatly reduces the number of FDB
entries.
Adding an MRP ring to a VLAN
To add an MRP ring to a VLAN, enter commands such as the following.
NOTE
If you plan to use a topology group to add VLANs to the ring, make sure you configure MRP on the
topology group master VLAN.
device(config)#vlan 2
device(config-vlan-2)#metro-ring 1
device(config-vlan-2-mrp-1)#name CustomerA
Metro Ring Protocol configuration
FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide 85
53-1003086-04