diff options
| author | ISHIDA Wataru <ishida.wataru@lab.ntt.co.jp> | 2016-08-02 16:11:59 +0000 |
|---|---|---|
| committer | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2017-04-04 22:07:46 +0900 |
| commit | 6f102593b71931226d78a9f592173c4742859549 (patch) | |
| tree | 9a0d41f9210f3148ea91690a910785a2631b6f57 /table | |
| parent | e80b6ece00bec96ec331c839f9a61cf19027295e (diff) | |
table: handle paths with IPv4 NLRI and IPv6 nexthop properly
when a path has IPv4 NLRI and IPv6 nexthop, handle it in MPBGP manner.
(use mp-reach-nlri path attribute instead of nexthop path attibute)
Signed-off-by: ISHIDA Wataru <ishida.wataru@lab.ntt.co.jp>
Diffstat (limited to 'table')
| -rw-r--r-- | table/message.go | 8 | ||||
| -rw-r--r-- | table/path.go | 6 |
2 files changed, 12 insertions, 2 deletions
diff --git a/table/message.go b/table/message.go index 07c15511..af4affa6 100644 --- a/table/message.go +++ b/table/message.go @@ -257,9 +257,13 @@ func UpdatePathAggregator4ByteAs(msg *bgp.BGPUpdate) error { } func createUpdateMsgFromPath(path *Path, msg *bgp.BGPMessage) *bgp.BGPMessage { - rf := path.GetRouteFamily() + family := path.GetRouteFamily() + v4 := true + if family != bgp.RF_IPv4_UC || !path.IsWithdraw && path.GetNexthop().To4() == nil { + v4 = false + } - if rf == bgp.RF_IPv4_UC { + if v4 { nlri := path.GetNlri().(*bgp.IPAddrPrefix) if path.IsWithdraw { if msg != nil { diff --git a/table/path.go b/table/path.go index 82af18c1..c31d6cc6 100644 --- a/table/path.go +++ b/table/path.go @@ -394,6 +394,12 @@ func (path *Path) GetNexthop() net.IP { } func (path *Path) SetNexthop(nexthop net.IP) { + if path.GetRouteFamily() == bgp.RF_IPv4_UC && nexthop.To4() == nil { + path.delPathAttr(bgp.BGP_ATTR_TYPE_NEXT_HOP) + mpreach := bgp.NewPathAttributeMpReachNLRI(nexthop.String(), []bgp.AddrPrefixInterface{path.GetNlri()}) + path.setPathAttr(mpreach) + return + } attr := path.getPathAttr(bgp.BGP_ATTR_TYPE_NEXT_HOP) if attr != nil { path.setPathAttr(bgp.NewPathAttributeNextHop(nexthop.String())) |