Bug 1303272 - quagga starts after networking but ospf6d doesn't use the autodetect MTU
quagga starts after networking but ospf6d doesn't use the autodetect MTU
Status: NEW
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: quagga (Show other bugs)
All Linux
unspecified Severity medium
: rc
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Assigned To: Michal Ruprich
Depends On:
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Reported: 2016-01-29 22:46 EST by Matyas Koszik
Modified: 2017-08-03 03:33 EDT (History)
3 users (show)

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Description Matyas Koszik 2016-01-29 22:46:59 EST
Description of problem:
ospf6d uses MTU seen during initialization, which happens before networking, so it ignores the one set in the configuration.

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

How reproducible:

Steps to Reproduce:
1. echo MTU=9000 >> /etc/sysconfig/network-scripts/ifcfg-enp7s0f0
2. echo -n 'router ospf6\ninterface enp7s0f0 area' > /etc/quagga/ospf6d.conf
3. reboot

Actual results:
sh ipv6 ospf int shows this:
Instance ID 0, Interface MTU 1500 (autodetect: 9000)
1500 is being used in the database description packets, making it impossible to peer with routers that check the mtu settings (which is the default, even in quagga).

Expected results:
Either the networking setup should occur before starting quagga, so changes like this are seen during initialization, or ospf6d should use the actual detected MTU.

Additional info:

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