My xen bridge was working fine before a USB/SATA cable got moved. None of my xen clients can ping the www.
root@NewInspiron15:/etc/xen# xl list
Name ID Mem VCPUs State Time(s)
Domain-0 0 32145 8 r----- 403.3
hvm-debian01.tradercoin 2 8024 1 ------ 7.5
root@NewInspiron15:/etc/xen# ip route show
default via 192.168.1.1 dev wlp0s20f3 proto dhcp metric 600
169.254.0.0/16 dev virbr0 scope link metric 1000 linkdown
192.168.1.0/24 dev wlp0s20f3 proto kernel scope link src 192.168.1.123 metric 600
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown
root@NewInspiron15:/etc/xen# ifconfig virbr0 up
root@NewInspiron15:/etc/xen# ip route show
default via 192.168.1.1 dev wlp0s20f3 proto dhcp metric 600
169.254.0.0/16 dev virbr0 scope link metric 1000 linkdown
192.168.1.0/24 dev wlp0s20f3 proto kernel scope link src 192.168.1.123 metric 600
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown
root@NewInspiron15:/etc/xen# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.000000000000 yes
virbr0 8000.525400f8f62c yes virbr0-nic
root@NewInspiron15:/etc/xen# brctl showstp
Incorrect number of arguments for command
Usage: brctl showstp <bridge> show bridge stp info
root@NewInspiron15:/etc/xen# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: wlp0s20f3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 40:1c:83:fb:2f:48 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.123/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp0s20f3
valid_lft 69036sec preferred_lft 69036sec
inet6 fe80::f285:75ec:cbfc:756/64 scope link noprefixroute
valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 52:54:00:f8:f6:2c brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel master virbr0 state DOWN group default qlen 1000
link/ether 52:54:00:f8:f6:2c brd ff:ff:ff:ff:ff:ff
10: vif2.0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 32
link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
inet6 fe80::e36d:8047:18b9:81ed/64 scope link noprefixroute
valid_lft forever preferred_lft forever
11: br0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether c6:59:27:29:20:7b brd ff:ff:ff:ff:ff:ff
inet6 fe80::c459:27ff:fe29:207b/64 scope link
valid_lft forever preferred_lft forever
How do I restart xen bridge so that my clients can surf?