Don, That is not necessarily true. If rp_filter is set to 2 for each network device on the same subnet, they can all be active at the same time. This is even addressed in the open-iscsi documentation.
Mike E. On Saturday, June 17, 2017 at 7:59:40 PM UTC-5, Donald Williams wrote: > > Hello, > I read over that thread. Once thing missing from that discussion is > how Linux routing works with multiple NICs on the same subnet. If you have > two NICs IP'd on same IP subnet, only one NIC will be active. That becomes > the default NIC for that subnet. Down that interface and the other will > become active. That's the default behavior. That's why the -I interface > option or creating interfaces files is needed, not just for offload > cards. On iSCSI SANs like the Equallogic where all interfaces are on the > same subnet, the iSCSI initiator must initiate iSCSI connections from each > interface desired for iSCSI traffic. iSCSI SANs like the MD and CML can > use different network subnets to get around how Linux networking works. > > Don > > > > > On Fri, Jun 16, 2017 at 4:04 PM, <[email protected] <javascript:>> wrote: > >> I have been facing an issue with kubernetes implementation here is the >> link if you care to look: >> >> >> https://github.com/kubernetes/kubernetes/issues/46041#issuecomment-308762723 >> >> The question I have is why does open-iscsi behave differently when you >> use the default interface in the first place? >> >> That is why does the behavior of these things differ: >> >> iscsiadm -m discovery -t st -p X.X.X.X >> vs >> iscsiadm -m discovery -t st -p X.X.X.X -I default >> >> and >> >> iscsiadm -m node -p XXXX -T >> iqn.2001-05.com.equallogic:X-XXXXXX-XXXXXXXXX-XXXXXXXXXXXXXXXX-kubetesting >> --login >> vs >> iscsiadm -m node -p XXXX -T >> iqn.2001-05.com.equallogic:X-XXXXXX-XXXXXXXXX-XXXXXXXXXXXXXXXX-kubetesting >> -I default --login >> >> Thanks, >> >> Mike E >> >> -- >> You received this message because you are subscribed to the Google Groups >> "open-iscsi" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at https://groups.google.com/group/open-iscsi. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.
