Avaya Configuring Interface and Router Redundancy Manuel d'utilisateur Page 25

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 80
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 24
Interface Redundancy Overview
114079 Rev. A 1-3
During normal data transfer, if the active interface fails, the following interfaces
become active, in this order:
1. Redundant interfaces on the slot that is processing the routing/bridging table
for this circuit
2. Redundant interfaces on other slots
Role Change Speed on Ethernet
To increase the speed of detecting failed interfaces and changing roles on Ethernet
connectors, set the BOFL Timeout parameter to a short interval, such as one
second. The cost is LAN bandwidth and CPU overhead. To access the BOFL
Timeout parameter, select Line > Edit Lines in the Circuit Definition window. For
further information, refer to Configuring Line Services.
Hot and Warm Standby
When a redundant interface takes over for a failed interface without interruption
in service, it does so under one of two conditions: hot standby or warm standby.
Hot Standby
When the active interface fails, but the circuit is still up, the new active interface
retains access to the routing/bridging tables, and can continue transmission
immediately.
Only if the routing/bridging tables are on another slot from the new active
interface is there any loss in performance. The priority rules for interfaces to
become active operate to avoid this situation whenever possible.
Warm Standby
When the active interface fails and the circuit has gone down, the CPU module
processing the routing/bridging table is at fault, and the router loses the
routing/bridging tables.
Transmission continues, but is slower than in the case of hot standby, because the
new active interface must relearn the routing/bridging tables.
Vue de la page 24
1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 79 80

Commentaires sur ces manuels

Pas de commentaire