Delete the NIC, port, and bridge associated with a virtual machine from the openstack host.

Delete the NIC, port, and bridge associated with a VM on the host.

1) run the ovs-vsctl command to view all the bridge information of the host.

[[Email protected] ~] # Ovs-vsctl show

169dc0d6-0c44-42df-9bd5-5e1f380a8704

Bridge Br-int

Port int-Br-int

Interface int-Br-int

Port phy-Br-int

Interface phy-Br-int

Port "EM2"

Interface "EM2"

Port Br-int

Interface Br-int

Type: Internal

Port "qvo2bb4fd90-f1"

Tag: 1

Interface qvo2bb4fd90-f1"

Ovs_version: "1.11.0"

2) Delete the qvo2bb4fd90-f1 port under the Br-int Bridge

[[Email protected] ~] # Ovs-vsctl del-port Br-int qvo2bb4fd90-f1

3) view the bridge information again. The port just deleted

[[Email protected] ~] # Ovs-vsctl show

169dc0d6-0c44-42df-9bd5-5e1f380a8704

Bridge Br-int

Port int-Br-int

Interface int-Br-int

Port phy-Br-int

Interface phy-Br-int

Port "EM2"

Interface "EM2"

Port Br-int

Interface Br-int

Type: Internal

Ovs_version: "1.11.0"

 

3) Use ifconfig to view global interface information

[[Email protected] ~] # Ifconfig | grep hwaddr

Br-int link encap: Ethernet hwaddr 74: 86: 7A: D9: 05: 19

Em1 link encap: Ethernet hwaddr 74: 86: 7A: D9: 05: 18

EM2 link encap: Ethernet hwaddr 74: 86: 7A: D9: 05: 19

INT-Br-int linkencap: Ethernet hwaddr 42: D4: 65: 7c: EE: 5E

Phy-Br-int linkencap: Ethernet hwaddrae: 70: 7f: C8: 4E: 53

The qbr2bb4fd90-f1Link encap: Ethernet hwaddrf2: 6e: 69: E9: 7b: 62.

The qvb2bb4fd90-f1Link encap: Ethernet hwaddrf2: 6e: 69: E9: 7b: 62.

Qvo2bb4fd90-f1Link encap: Ethernet hwaddr F2: 12: 9A: D9: 85: 58

Tap2bb4fd90-f1Link encap: Ethernet hwaddrfe: 16: 3E: 0f: 72: 20

Virbr0 link encap: Ethernet hwaddr 52: 54: 00: 07: 56: A2

4), the virtual machine associated with the 4 port qbr2bb4fd90-f1qvb2bb4fd90-f1 qvo2bb4fd90-f1 tap2bb4fd90-f1 are down

[[Email protected] ~] # Ifconfig qbr2bb4fd90-f1 down

[[Email protected] ~] # Ifconfig qvb2bb4fd90-f1 down

[[Email protected] ~] # Ifconfig qvo2bb4fd90-f1 down

[[Email protected] ~] # Ifconfig tap2bb4fd90-f1 down

5) view the port information globally.

[[Email protected] ~] # Ifconfig | grep hwaddr

Br-int link encap: Ethernet hwaddr 74: 86: 7A: D9: 05: 19

Em1 link encap: Ethernet hwaddr 74: 86: 7A: D9: 05: 18

EM2 link encap: Ethernet hwaddr 74: 86: 7A: D9: 05: 19

INT-Br-int linkencap: Ethernet hwaddr42: D4: 65: 7c: EE: 5E

Phy-Br-int linkencap: Ethernet hwaddrae: 70: 7f: C8: 4E: 53

Virbr0 link encap: Ethernet hwaddr 52: 54: 00: 07: 56: A2

6) run the brctl command to view all bridge information.

[[Email protected] ~] # Brctl show

Bridge name bridge id stp enabled Interfaces

Qbr2bb4fd90-f1 8000. f26e69e97b62 no qvb2bb4fd90-f1

Tap2bb4fd90-f1

Virbr0 8000.5254000756a2 Yes virbr0-nic

[[Email protected] ~] #

7), delete the Virtual Machine bridge qbr2bb4fd90-f1

[[Email protected] ~] # Brctl delbr qbr2bb4fd90-f1

[[Email protected] ~] # Brctl show

Bridge name bridge id stp enabled Interfaces

Virbr0 8000.5254000756a2 Yes virbr0-nic

[[Email protected] ~] #

8) restart the server Nic if possible.

[[Email protected] ~] # Service network restart

This article is from the "zhanguo1110" blog, please be sure to keep this source http://zhanguo1110.blog.51cto.com/5750817/1543027