Brocade Multi-Service IronWare Switching Configuration Gui Manuel d'utilisateur télécharger pdf (Page 510)

480 Multi-Service IronWare Switching Configuration Guide

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How ring breaks are detected and healed

Figure 109 shows ring interface states following a link break. MRP quickly heals the ring and

preserves connectivity among the customer networks.

FIGURE 109 MRP ring – ring break

If a break in the ring occurs, MRP heals the ring by changing the states of some of the ring

• Blocking interface – When the secondary interface on the master node transitions to a

blocking state it sets a timer defined by the preforwarding time configured. If the timer expires

before the interface receives a ring RHP, the interface changes state to preforwarding. Once

the secondary interface state is preforwarding:

• If the interface receives an RHP, the interface changes back to the blocking state and

resets the timer.

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Brocade Multi-Service IronWare Switching Configuration Gui Manuel d'utilisateur Page 510