Enable ndisc_notify sysctl setting to notify of MAC changes
On RHEL/CentOS systems, ndisc_notify is disabled by default. When
OVS restarts or an internal port flaps, the MAC address may change.
Without ndisc_notify, neighbor hosts on the same network will not
know about the MAC change, and will lose connectivity until the MAC
timer expires.
This change sets net.ipv6.conf.all.ndisc_notify to 1, which will
cause a gratuitous neighbor discovery packet which will update MAC
address tables on neighboring hosts.
Change-Id: I89062275541d7c6bb6fb725f5283ba59feb38a94
Closes-bug: 1827927
(cherry picked from commit 4b113a7a12
)
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@ -168,6 +168,8 @@ outputs:
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value: 0
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net.ipv6.conf.all.accept_redirects:
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value: 0
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net.ipv6.conf.all.ndisc_notify:
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value: 1
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net.core.netdev_max_backlog:
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value: 10000
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kernel.pid_max:
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