H.6.1 Accidentally deleted the virtual interface

Symptom:

Unable to recover the virtual interface (sha) deleted with the ifconfig command or the ip command by accident.

Corrective action:

After the virtual interface (sha) is disabled by the ifconfig command or the ip command in Fast switching mode, the behavior of the strhanet/stphanet command cannot be guaranteed. Follow the procedure below to recover the virtual interface if it is disabled by mistake.

[Example 1]

Accidentally executing "ifconfig sha0 down" against the virtual interface sha0 for Fast switching mode.

If IPv4 address is being used:
# ifconfig sha0 IPv4 address netmask network mask broadcast broadcast address arp up

If IPv6 address is being used:
# ifconfig sha0 up
# ifconfig sha0 add IPv6 address/prefixlen

[Example 2]

Accidentally executing "ip link set sha0 down" against the virtual interface sha0 for Fast switching mode.

If IPv4 address is being used:
# ip link set sha0 up

If IPv6 address is being used:
# ip link set sha0 up
# ip -f inet6 addr add IPv6 address/prefixlen dev sha0

[Example 3]

Accidentally deleting the IP address against the virtual interface sha0 for Fast switching mode.

If IPv4 address is being used:
# ip -f inet addr add IPv6 address/prefixlen dev sha0

If IPv6 address is being used:
# ip -f inet6 addr add IPv6 address/prefixlen dev sha0

See

In the case of a cluster system, a virtual interface is restored automatically. In addition, please refer to "2.7.1 Interface status monitoring feature" automatically about the virtual interface which can be restored.