Platform Considerations; References; Table 18: Vrrp Definitions - Juniper SERVICE AVAILABILITY - CONFIGURATION GUIDE V 11.1.X Configuration Manual

JUNOSe 11.1.x Service Availability Configuration Guide

Table 18: VRRP Definitions

Platform Considerations

For information about modules that support VRRP on ERX14xx models, ERX7xx
models, and the ERX310 Broadband Services Router:
For information about modules that support VRRP on the E120 and E320 Broadband
Services Routers:

References

For more information about VRRP, see:
106
Platform Considerations
Term Definition
VRRP router 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
Master router 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.
Backup router The VRRP router available to take forwarding responsibility if the current
master router fails.
IP address owner 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.
Primary IP address 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.
See ERX Module Guide, Table 1, Module Combinations for detailed module
specifications.
See ERX Module Guide, Appendix A, Module Protocol Support for information about
the modules that support VRRP.
See E120 and E320 Module Guide, Table 1, Modules and IOAs for detailed module
specifications.
See E120 and E320 Module Guide, Appendix A, IOA Protocol Support for information
about the modules that support VRRP.
RFC 2787 Definitions of Managed Objects for the Virtual Router Redundancy
Protocol (March 2000)