Description

On many DPDK computes, a number of strange "veth" interfaces have been created.

Symptoms

Sample output


1vethaxxxxxx7-d@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000

Error: Peer netns reference is invalid.

link/ether XX:XX:XX brd ff:ff:ff:ff:ff:ff link-netnsid 0

inet6 XX:XX:XX/64 scope link

valid_lft forever preferred_lft forever


Logs


/var/log/containers/contrail/dpdk/vrouter-agent-dpdk/console.log:date,714 VROUTER: eth dev veth1xxxx now use vif MAC XXX

Solution

These interfaces may be linked to resources i.e. neutron networks, subnets, ports.

Kindly review and manage the interface from openstack neutron as applicable.


Modification History

2025-08-01 : Article Created