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VRRP
router
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A router that is running VRRP. It might participate in one or
more virtual router IDs (VRIDs). An IP redundancy instance can:
- Act as a master with associated addresses it owns at an
IP interface
- Act simultaneously as a backup for other routers with
additional VRID mappings and priorities for those routers
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Master router
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The VRRP router that takes the responsibility of forwarding
packets sent to the IP addresses associated with the virtual router,
and that answers ARP requests for these IP addresses. If the IP address
owner is available, it always becomes the master.
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Backup router
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The VRRP router available to take forwarding responsibility
if the current master router fails.
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IP address owner
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The IP interface–VRID pair instance that has the associated
IP addresses as real interface addresses. This router, when up, responds
to packets addressed to one of these IP addresses for Internet Control
Message Protocol (ICMP) pings or Transmission Control Protocol (TCP)
connections. The IP address owner is the primary router.
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Primary IP address
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An IP address configured as primary from the set of real interface
addresses. VRRP advertisements are always sent (by the master router)
using the primary IP address as the source of the IP packet.
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