cvs commit: src/sys/conf files options src/sys/net radix.c
radix.h route.c route.h rtsock.c src/sys/netinet in_proto.c
ip_output.c src/sys/netinet6 in6_proto.c in6_src.c nd6_nbr.c
cokane at FreeBSD.org
Mon Apr 14 13:48:47 UTC 2008
On Mon, 2008-04-14 at 09:33 +0900, Pyun YongHyeon wrote:
> On Sun, Apr 13, 2008 at 05:45:14AM +0000, Qing Li wrote:
> > qingli 2008-04-13 05:45:14 UTC
> > FreeBSD src repository
> > Modified files:
> > sys/conf files options
> > sys/net radix.c radix.h route.c route.h rtsock.c
> > sys/netinet in_proto.c ip_output.c
> > sys/netinet6 in6_proto.c in6_src.c nd6_nbr.c
> > Log:
> > This patch provides the back end support for equal-cost multi-path
> > (ECMP) for both IPv4 and IPv6. Previously, multipath route insertion
> > is disallowed. For example,
> > route add -net 22.214.171.124/24 10.9.44.1
> > route add -net 126.96.36.199/24 10.9.44.2
> > The second route insertion will trigger an error message of
> > "add net 188.8.131.52/24: gateway 10.2.5.2: route already in table"
> > Multiple default routes can also be inserted. Here is the netstat
> > output:
> > default 10.2.5.1 UGS 0 3074 bge0 =>
> > default 10.2.5.2 UGS 0 0 bge0
> > When multipath routes exist, the "route delete" command requires
> > a specific gateway to be specified or else an error message would
> > be displayed. For example,
> > route delete default
> > would fail and trigger the following error message:
> > "route: writing to routing socket: No such process"
> > "delete net default: not in table"
> > On the other hand,
> > route delete default 10.2.5.2
> > would be successful: "delete net default: gateway 10.2.5.2"
> > One does not have to specify a gateway if there is only a single
> > route for a particular destination.
> > I need to perform more testings on address aliases and multiple
> > interfaces that have the same IP prefixes. This patch as it
> > stands today is not yet ready for prime time. Therefore, the ECMP
> > code fragments are fully guarded by the RADIX_MPATH macro.
> > Include the "options RADIX_MPATH" in the kernel configuration
> > to enable this feature.
> > Reviewed by: robert, sam, gnn, julian, kmacy
> Nice work!
Congrats! Thank you for this.
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