Metro ring protocol (mrp) – Brocade TurboIron 24X Series Configuration Guide User Manual
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Brocade TurboIron 24X Series Configuration Guide
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Metro Ring Protocol (MRP)
Metro Ring Protocol (MRP)
Metro Ring Protocol (MRP) was introduced in two phases:
•
MRP Phase 1 is supported in all TurboIron X Series devices. Refer to
shared interfaces (MRP Phase 1)”
•
MRP Phase 2 is supported in TurboIron X Series devices. Refer to
MRP protocol prevents Layer 2 loops and provides fast reconvergence in Layer 2 ring topologies. It
is an alternative to STP and is especially useful in Metropolitan Area Networks (MANs) where using
STP has the following drawbacks:
•
STP allows a maximum of seven nodes. Metro rings can easily contain more nodes than this.
•
STP has a slow reconvergence time, taking many seconds or even minutes. MRP can detect
and heal a break in the ring in sub-second time.
TABLE 52
CLI display of topology group information
This field...
Displays...
master-vlan
The master VLAN for the topology group. The settings for STP, MRP, or VSRP on
the control ports in the master VLAN apply to all control ports in the member
VLANs within the topology group.
member-vlan
The member VLANs in the topology group.
Common control ports
The master VLAN ports that are configured with Layer 2 protocol information.
The Layer 2 protocol configuration and state of these ports in the master VLAN
applies to the same port numbers in all the member VLANs.
L2 protocol
The Layer 2 protocol configured on the control ports. The Layer 2 protocol can
be one of the following:
•
MRP
•
STP
•
VSRP
Per vlan free ports
The ports that are not controlled by the Layer 2 protocol information in the
master VLAN.