[openstack-dev] [qa] Should it be allowed to attach 2 interfaces from the same subnet to a VM?
Danny Choi (dannchoi)
dannchoi at cisco.com
Tue Dec 2 02:04:27 UTC 2014
Hi,
When I attach 2 interfaces from the same subnet to a VM, there is no error returned and
both interfaces come up.
lab at tme211:/opt/stack/logs$ nova interface-attach --net-id e38dba4a-74ed-4312-ba21-2a04b5c5a5b5 cirros-1
lab at tme211:/opt/stack/logs$ nova list
+--------------------------------------+----------+--------+------------+-------------+-------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+----------+--------+------------+-------------+-------------------+
| 9d88d0b5-2453-4657-8058-987980ec7744 | cirros-1 | ACTIVE | - | Running | private=10.0.0.10 |
+--------------------------------------+----------+--------+------------+-------------+-------------------+
lab at tme211:/opt/stack/logs$ nova interface-attach --net-id e38dba4a-74ed-4312-ba21-2a04b5c5a5b5 cirros-1
lab at tme211:/opt/stack/logs$ nova list
+--------------------------------------+----------+--------+------------+-------------+------------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+----------+--------+------------+-------------+------------------------------+
| 9d88d0b5-2453-4657-8058-987980ec7744 | cirros-1 | ACTIVE | - | Running | private=10.0.0.10, 10.0.0.11 |
+--------------------------------------+----------+--------+------------+-------------+------------------------------+
$ ifconfig
eth0 Link encap:Ethernet HWaddr FA:16:3E:92:2D:2B
inet addr:10.0.0.10 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::f816:3eff:fe92:2d2b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:514 errors:0 dropped:0 overruns:0 frame:0
TX packets:307 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:48342 (47.2 KiB) TX bytes:41750 (40.7 KiB)
eth1 Link encap:Ethernet HWaddr FA:16:3E:EF:55:BC
inet addr:10.0.0.11 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::f816:3eff:feef:55bc/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:49 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3556 (3.4 KiB) TX bytes:1120 (1.0 KiB)
Should this operation be allowed?
Thanks,
Danny
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