[ Just reposting as it was likely missed in the Holiday Extravaganza. --jdl ]
On Fri, Dec 28, 2018 at 9:21 AM Jon Loeliger <j...@netgate.com> wrote: > Folks, > > Is there a valid use for duplicate nodes in the node graph? > Specifically, if I type this command three times: > > vpp# set interface ip vxlan-bypass TenGigabitEthernet6/0/0 > vpp# set interface ip vxlan-bypass TenGigabitEthernet6/0/0 > vpp# set interface ip vxlan-bypass TenGigabitEthernet6/0/0 > > I end up with duplicate ip4-vxlan-nodes: > > vpp# show interface features TenGigabitEthernet6/0/0 > [ ...] > ip4-unicast: > ip4-not-enabled > ip4-vxlan-bypass > ip4-vxlan-bypass > ip4-vxlan-bypass > > In this case, I don't think it makes sense, and I think we should detect > the presence of the node and disallow multiple additions. > > If that is true for this case, but NOT true for other cases, we might > entertain > a flag (per interface per family) in the > function vnet_int_vxlan_bypass_mode() > to record its addition and prevent subsequent re-additions. > > On the other hand, if duplicate nodes is a Bad Thing for the whole graph, > perhaps the function vnet_feature_enable_disable() itself should be able > to detect and prevent duplicates? > > Thoughts? > jdl > >
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