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Bug 1887333

Summary:	Too many resubmits for IPv6 RS coming from "external" network
Product:	Red Hat Enterprise Linux Fast Datapath	Reporter:	Dumitru Ceara <dceara>
Component:	ovn2.13	Assignee:	OVN Team <ovnteam>
Status:	CLOSED WONTFIX	QA Contact:	Jianlin Shi <jishi>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	FDP 20.E	CC:	ctrautma, jishi, ralongi
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2024-02-14 21:11:29 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Dumitru Ceara 2020-10-12 07:13:52 UTC

Description of problem:

Currently OVN limits forwarding ARP/IPv6 NS packets only to router ports that own the target IP.

This should be extended for other types of BUM (broadcast/unknown/multicast) traffic as follows:

1. send ARP/NS packets only to router ports that own the target IP address.
2. flood IPv6 ND RS packets only to router ports with IPv6 addresses
configured and ipv6_ra_configs.address_mode set.
3. according to the logical switch multicast configuration either flood
unkown IP multicast or forward it only to hosts that registered for the
IP multicast group.
4. flood all other BUM traffic on all logical ports of a logical switch except router ports.

Version-Release number of selected component (if applicable):
any

Additional info:
Reported upstream: - https://mail.openvswitch.org/pipermail/ovs-discuss/2020-September/050715.html

Comment 1 Mark Michelson 2023-10-05 15:46:32 UTC

*** Bug 1896993 has been marked as a duplicate of this bug. ***

Comment 2 OVN Bot 2024-02-14 21:11:27 UTC

This issue is being closed as an automatic process due to the issue's age. If you wish to re-open this issue, please do so in Jira (https://issues.redhat.com) in the 'FDP' project. Please be sure to set the component to the latest OVN version where this issue is known to occur. If this is a feature request or improvement, please set the component to 'OVN'.