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authorAlexander Chernavin <achernavin@netgate.com>2021-12-13 13:03:56 +0000
committerMatthew Smith <mgsmith@netgate.com>2022-03-07 19:45:39 +0000
commit7e647358af812d207004be00eef1d0396ab9f138 (patch)
tree83a7864ba5c8be38dea1feb8677f83f68273cecc /docs/interfacing
parentec5371e3e31b7860d6b3996fd10420566a4377f2 (diff)
linux-cp: handle ipv4 routes when interface is disabled
Type: improvement Currently, when an interface is brought down administratively, IPv4 routes that resolve through that interface remain in the FIB. However, the kernel removes those routes but doesn't send any notifications about that. Desynchronization between the kernel and VPP happens. With this change, when a notification received from the kernel indicating that an interface was brought down, in addition to bringing the VPP interface down, walk the IPv4 FIB bound to that interface and remove any entries that resolve through that interface and were added with one of the linux-cp FIB sources. Signed-off-by: Alexander Chernavin <achernavin@netgate.com> Change-Id: I0cd14bb63c9e6616ae1c5739b17c3bf33b186bc2
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