yahoo-eng-team team mailing list archive

[Jakub Libosvar <libosvar@xxxxxxxxxx>]

Public bug reported:

Keepalived doesn't send gratuitous ARP on receiving SIGHUP. This makes
floating IP, which was previously associated with a port on different HA
router, inaccesible until local ARP cache is invalidated.

Steps to reproduce:
  Have two networks and two HA routers
  Associate floating IP to port on first router
  Ping the floating IP from a different node than the node hosting router (this creates arp entry on local machine)
  Disassociate floating ip and associate it to the second router

- floating ip is not pingable as it contains wrong destination ip
address

** Affects: neutron
     Importance: Undecided
     Assignee: Jakub Libosvar (libosvar)
         Status: New


** Tags: l3-ha

** Tags added: l3-ha

** Changed in: neutron
     Assignee: (unassigned) => Jakub Libosvar (libosvar)

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https://bugs.launchpad.net/bugs/1639315

Title:
  Gratuitous ARP is not sent when floating IP is added to HA router

Status in neutron:
  New

Bug description:
  Keepalived doesn't send gratuitous ARP on receiving SIGHUP. This makes
  floating IP, which was previously associated with a port on different
  HA router, inaccesible until local ARP cache is invalidated.

  Steps to reproduce:
    Have two networks and two HA routers
    Associate floating IP to port on first router
    Ping the floating IP from a different node than the node hosting router (this creates arp entry on local machine)
    Disassociate floating ip and associate it to the second router

  - floating ip is not pingable as it contains wrong destination ip
  address

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