vpp# show hardware-interfaces
Name Idx Link Hardware
local0 0 down local0
Link speed: unknown
local
memif1/0 1 up memif1/0
Link speed: unknown
Ethernet address 02:fe:70:81:0f:38
MEMIF interface
instance 0
vpp# show mem
memif memory
vpp# show memif
sockets
id listener filename
0 no /run/vpp/memif.sock
1 yes (1) /work/c/vpp/memif2

interface memif1/0
remote-name "VPP 21.01-rc0~395-g80ac72894~b2"
remote-interface "memif1/0"
socket-id 1 id 0 mode ethernet
flags admin-up connected
listener-fd 22 conn-fd 24
num-s2m-rings 1 num-m2s-rings 1 buffer-size 0 num-regions 2
region 0 size 33024 fd 25
region 1 size 41943040 fd 26
master-to-slave ring 0:
region 0 offset 16512 ring-size 1024 int-fd 28
head 1024 tail 0 flags 0x0001 interrupts 0
slave-to-master ring 0:
region 0 offset 0 ring-size 1024 int-fd 27
head 0 tail 0 flags 0x0001 interrupts 0
vpp# set interface state memif1/0 down
vpp# set interface state memif1/0 up
vpp# show hardware-interfaces
Name Idx Link Hardware
local0 0 down local0
Link speed: unknown
local
memif1/0 1 down memif1/0
Link speed: unknown
Ethernet address 02:fe:70:81:0f:38
MEMIF interface
instance 0
vpp# show interface
Name Idx State MTU (L3/IP4/IP6/MPLS) Counter Count
local0 0 down 0/0/0/0
memif1/0 1 up 9000/0/0/0
vpp# show memif
sockets
id listener filename
0 no /run/vpp/memif.sock
1 yes (1) /work/c/vpp/memif2

interface memif1/0
remote-name "VPP 21.01-rc0~395-g80ac72894~b2"
remote-interface "memif1/0"
socket-id 1 id 0 mode ethernet
flags admin-up connected
listener-fd 22 conn-fd 24
num-s2m-rings 1 num-m2s-rings 1 buffer-size 0 num-regions 2
region 0 size 33024 fd 25
region 1 size 41943040 fd 26
master-to-slave ring 0:
region 0 offset 16512 ring-size 1024 int-fd 28
head 1024 tail 0 flags 0x0001 interrupts 0
slave-to-master ring 0:
region 0 offset 0 ring-size 1024 int-fd 27
head 0 tail 0 flags 0x0001 interrupts 0
vpp#
vpp# show version
vpp v21.01-rc0~395-g80ac72894~b295 built by root on 8e1c97379f3d at 2020-11-15T08:59:09