Link Redundancy Support
Starting from RPD v8.2, Link Redundancy is supported on RPD. RPD backhaul working modes include:
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Link-redundancy mode: there is only one virtual backhaul interface which always binds to active 10GE port.
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Daisy-chain mode: works for daisy-chain topology RPD, that is each RPD is daisy-chained with the next RPD, and the last RPD connects to the CIN.
Note |
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When you enable link-redundancy:
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Only one virtual backhaul interface VBH0 is available.
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Virtual backhaul interface always binds to active 10GE port. One 10G port works in active mode and the other one works in the standby mode.
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The first reachable 10GE port is the active port: the DHCP process gets the IP address and then determines the active 10GE port.
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Link state change triggers port switchover: when the active 10GE port is down, VBH0 binds to the standby 10GE port.
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Port selection occurs both at the boot-time and the run-time.
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Port switch causes 3-5 sec traffic interruption.