On Fri, 10 Oct 2014 16:48:36 +0800 Wei-Li Tang <[email protected]> wrote:
> Signed-off-by: Wei-Li Tang <[email protected]> > --- > ryu/lib/bfdlib.py | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) Applied, thanks. > diff --git a/ryu/lib/bfdlib.py b/ryu/lib/bfdlib.py > index 21bfd6f..465ea9a 100644 > --- a/ryu/lib/bfdlib.py > +++ b/ryu/lib/bfdlib.py > @@ -535,9 +535,10 @@ class BFDPacket(object): > pkt.add_protocol(eth_pkt) > > # IPv4 encapsulation > - # ToS sets to 192 (Network control/CS6) > + # set ToS to 192 (Network control/CS6) > + # set TTL to 255 (RFC5881 Section 5.) > ipv4_pkt = ipv4.ipv4(proto=inet.IPPROTO_UDP, src=src_ip, dst=dst_ip, > - tos=192, identification=ipv4_id) > + tos=192, identification=ipv4_id, ttl=255) > pkt.add_protocol(ipv4_pkt) > > # UDP encapsulation > @@ -861,6 +862,10 @@ class BFDLib(app_manager.RyuApp): > > ip_pkt = pkt.get_protocols(ipv4.ipv4)[0] IIRC, you could write a bit simpler like: ip_pkt = pkt.get_protocol(ipv4.ipv4) > + # Discard it if TTL != 255 for single hop bfd. (RFC5881 Section 5.) > + if ip_pkt.ttl != 255: > + return > + > # Parse BFD packet here. > bfd_pkt = BFDPacket.bfd_parse(data) > > -- > 1.7.9.5 > > > ------------------------------------------------------------------------------ > Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer > Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports > Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper > Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer > http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk > _______________________________________________ > Ryu-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ryu-devel ------------------------------------------------------------------------------ Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
