Configuration Guide User guide

FastIron Configuration Guide 621
53-1002494-02
Metro Ring Protocol
How ring breaks are detected and healed
Figure 47 shows ring interface states following a link break. MRP quickly heals the ring and
preserves connectivity among the customer networks.
FIGURE 47 Metro ring – ring break
F
FF
Customer A
Switch B
Customer A
Customer A
Customer A
Switch A
Switch C
Switch D
Master
Node
F
F
F
F
F
F
F