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| author | Don Slice <dslice@cumulusnetworks.com> | 2019-11-22 18:31:29 +0100 |
|---|---|---|
| committer | Don Slice <dslice@cumulusnetworks.com> | 2019-11-22 19:40:20 +0100 |
| commit | adee8f216498b1e7e8798bf96189786328095010 (patch) | |
| tree | cba4460b72cea4df7c47fff06044d4db0344cc06 /doc | |
| parent | Merge pull request #5406 from lkrishnamoor/advertise-routes-bug2 (diff) | |
| download | frr-adee8f216498b1e7e8798bf96189786328095010.tar.xz frr-adee8f216498b1e7e8798bf96189786328095010.zip | |
zebra: knob to make ra retransmit interval rfc compliant
Problem reported by testing facility that our sending of Router
Advertisements more frequently than once very three seconds is not
compliant with rfc4861. Added a knob to turn off fast retransmits
in order to meet the requirement of the RFC.
Ticket: CM-27063
Signed-off-by: Don Slice <dslice@cumulusnetworks.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/user/ipv6.rst | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/user/ipv6.rst b/doc/user/ipv6.rst index cc8fd18fe..f3f064b85 100644 --- a/doc/user/ipv6.rst +++ b/doc/user/ipv6.rst @@ -77,6 +77,20 @@ Router Advertisement Default: ``600000`` .. index:: + single: ipv6 nd ra-fast-retrans + single: no ipv6 nd ra-fast-retrans +.. clicmd:: [no] ipv6 nd ra-fast-retrans + + RFC4861 states that consecutive RA packets should be sent no more + frequently than three seconds apart. FRR by default allows faster + transmissions of RA packets in order to speed convergence and + neighbor establishment, particularly for unnumbered peering. By + turning off ipv6 nd ra-fast-retrans, the implementation is + compliant with the RFC at the cost of slower convergence + and neighbor establishment. + Default: enabled + +.. index:: single: ipv6 nd ra-lifetime (0-9000) single: no ipv6 nd ra-lifetime [(0-9000)] .. clicmd:: [no] ipv6 nd ra-lifetime [(0-9000)] |