ovs vtep 源码

 

 

 

 

 

 

 

    def add_tunnel(self, tunnel, tunnel_key):
        global tun_id
        vlog.info("adding tunnel %s" % tunnel)
        encap, ip = tunnel.split("/")

        if encap != "vxlan_over_ipv4":
            vlog.warn("unsupported tunnel format %s" % encap)
            return

        tun_id += 1
        tun_name = "vx" + str(tun_id)

        ovs_vsctl("add-port %s %s -- set Interface %s type=vxlan "
                  "options:key=%s options:remote_ip=%s"
                  % (self.short_name, tun_name, tun_name, tunnel_key, ip))

        for i in range(10):
            port_no = ovs_vsctl("get Interface %s ofport" % tun_name)
            if port_no != "-1":
                break
            elif i == 9:
                vlog.warn("couldn't create tunnel %s" % tunnel)
                ovs_vsctl("del-port %s %s" % (self.short_name, tun_name))
                return

            # Give the system a moment to allocate the port number
            time.sleep(0.5)

        self.tunnels[tunnel] = (port_no, tun_name, ip)

        add_bfd(ip)

        ovs_ofctl("add-flow %s table=0,priority=1000,in_port=%s,"
                  "actions=resubmit(,1)"
                  % (self.short_name, port_no))

 

[root@kunpeng82 scripts]# ./ovs-vtep -h
usage: ovs-vtep [-h] [--root-prefix DIR] [--version] [--log-file [LOG_FILE]]
                [-v [VERBOSE [VERBOSE ...]]] [--detach] [--no-chdir]
                [--monitor] [--pidfile [PIDFILE]] [--overwrite-pidfile]
                PS-NAME

positional arguments:
  PS-NAME               Name of physical switch.

optional arguments:
  -h, --help            show this help message and exit
  --root-prefix DIR     Use DIR as alternate root directory (for testing).
  --version             show program's version number and exit

Logging Options:
  --log-file [LOG_FILE]
                        Enables logging to a file. Default log file is used if
                        LOG_FILE is omitted.
  -v [VERBOSE [VERBOSE ...]], --verbose [VERBOSE [VERBOSE ...]]
                        Sets logging levels, see ovs-vswitchd(8). Defaults to
                        dbg.

Daemon Options:
  --detach              Run in background as a daemon.
  --no-chdir            Do not chdir to '/'.
  --monitor             Monitor ovs-vtep process.
  --pidfile [PIDFILE]   Create pidfile (default /var/run/ovs-vtep.pid).
  --overwrite-pidfile   With --pidfile, start even if already running.
[root@kunpeng82 scripts]# 

 

[root@kunpeng82 scripts]#  vtep-ctl -h
vtep-ctl: VTEP configuration utility
usage: vtep-ctl [OPTIONS] COMMAND [ARG...]

VTEP commands:
  show                        print overview of database contents

Manager commands:
  get-manager                 print the managers
  del-manager                 delete the managers
  [--inactivity-probe=MSECS]
  set-manager TARGET...       set the list of managers to TARGET...

Physical Switch commands:
  add-ps PS                   create a new physical switch named PS
  del-ps PS                   delete PS and all of its ports
  list-ps                     print the names of all the physical switches
  ps-exists PS                exit 2 if PS does not exist

Port commands:
  list-ports PS               print the names of all the ports on PS
  add-port PS PORT            add network device PORT to PS
  del-port PS PORT            delete PORT from PS

Logical Switch commands:
  add-ls LS                   create a new logical switch named LS
  del-ls LS                   delete LS and all of its ports
  list-ls                     print the names of all the logical switches
  ls-exists LS                exit 2 if LS does not exist
  bind-ls PS PORT VLAN LS     bind LS to VLAN on PORT
  unbind-ls PS PORT VLAN      unbind logical switch on VLAN from PORT
  list-bindings PS PORT       list bindings for PORT on PS
  set-replication-mode LS MODE  set replication mode on LS
  get-replication-mode LS       get replication mode on LS

Logical Router commands:
  add-lr LR                   create a new logical router named LR
  del-lr LR                   delete LR
  list-lr                     print the names of all the logical routers
  lr-exists LR                exit 2 if LR does not exist

MAC binding commands:
  add-ucast-local LS MAC [ENCAP] IP   add ucast local entry in LS
  del-ucast-local LS MAC              del ucast local entry from LS
  add-mcast-local LS MAC [ENCAP] IP   add mcast local entry in LS
  del-mcast-local LS MAC [ENCAP] IP   del mcast local entry from LS
  clear-local-macs LS                 clear local mac entries
  list-local-macs LS                  list local mac entries
  add-ucast-remote LS MAC [ENCAP] IP  add ucast remote entry in LS
  del-ucast-remote LS MAC             del ucast remote entry from LS
  add-mcast-remote LS MAC [ENCAP] IP  add mcast remote entry in LS
  del-mcast-remote LS MAC [ENCAP] IP  del mcast remote entry from LS
  clear-remote-macs LS                clear remote mac entries
  list-remote-macs LS                 list remote mac entries

Database commands:
  list TBL [REC]              list RECord (or all records) in TBL
  find TBL CONDITION...       list records satisfying CONDITION in TBL
  get TBL REC COL[:KEY]       print values of COLumns in RECord in TBL
  set TBL REC COL[:KEY]=VALUE set COLumn values in RECord in TBL
  add TBL REC COL [KEY=]VALUE add (KEY=)VALUE to COLumn in RECord in TBL
  remove TBL REC COL [KEY=]VALUE  remove (KEY=)VALUE from COLumn
  clear TBL REC COL           clear values from COLumn in RECord in TBL
  create TBL COL[:KEY]=VALUE  create and initialize new record
  destroy TBL REC             delete RECord from TBL
  wait-until TBL REC [COL[:KEY]=VALUE]  wait until condition is true
Potentially unsafe database commands require --force option.
Database commands may reference a row in each table in the following ways:
  ACL:
    by UUID
  ACL_entry:
    by UUID
  Arp_Sources_Local:
    by UUID
  Arp_Sources_Remote:
    by UUID
  Global:
    by UUID
    as "."
  Logical_Binding_Stats:
    by UUID
  Logical_Router:
    by UUID
    by "name"
  Logical_Switch:
    by UUID
    by "name"
  Manager:
    by UUID
    by "target"
  Mcast_Macs_Local:
    by UUID
  Mcast_Macs_Remote:
    by UUID
  Physical_Locator:
    by UUID
  Physical_Locator_Set:
    by UUID
  Physical_Port:
    by UUID
    by "name"
  Physical_Switch:
    by UUID
    by "name"
  Tunnel:
    by UUID
  Ucast_Macs_Local:
    by UUID
  Ucast_Macs_Remote:
    by UUID

Options:
  --db=DATABASE               connect to DATABASE
                              (default: unix:/var/run/openvswitch/db.sock)
  -t, --timeout=SECS          wait at most SECS seconds
  --dry-run                   do not commit changes to database
  --oneline                   print exactly one line of output per command

Output formatting options:
  -f, --format=FORMAT         set output formatting to FORMAT
                              ("table", "html", "csv", or "json")
  -d, --data=FORMAT           set table cell output formatting to
                              FORMAT ("string", "bare", or "json")
  --no-headings               omit table heading row
  --pretty                    pretty-print JSON in output
  --bare                      equivalent to "--format=list --data=bare --no-headings"

Logging options:
  -vSPEC, --verbose=SPEC   set logging levels
  -v, --verbose            set maximum verbosity level
  --log-file[=FILE]        enable logging to specified FILE
                           (default: /var/log/openvswitch/vtep-ctl.log)
  --syslog-method=(libc|unix:file|udp:ip:port)
                           specify how to send messages to syslog daemon
  --syslog-target=HOST:PORT  also send syslog msgs to HOST:PORT via UDP
  --no-syslog                 equivalent to --verbose=vtep_ctl:syslog:warn

Active database connection methods:
  tcp:HOST:PORT           PORT at remote HOST
  ssl:HOST:PORT           SSL PORT at remote HOST
  unix:FILE               Unix domain socket named FILE
Passive database connection methods:
  ptcp:PORT[:IP]          listen to TCP PORT on IP
  pssl:PORT[:IP]          listen for SSL on PORT on IP
  punix:FILE              listen on Unix domain socket FILE
PKI configuration (required to use SSL):
  -p, --private-key=FILE  file with private key
  -c, --certificate=FILE  file with certificate for private key
  -C, --ca-cert=FILE      file with peer CA certificate
SSL options:
  --ssl-protocols=PROTOS  list of SSL protocols to enable
  --ssl-ciphers=CIPHERS   list of SSL ciphers to enable

Other options:
  -h, --help                  display this help message
  -V, --version               display version information
[root@kunpeng82 scripts]#

 

vtep-ctl add  Logical_Switch ls2 tunnel_key=44

 

vs-vsctl add-port vtep_bfd  bfd192.168.16.83 -- set interface bfd192.168.16.83 type=vxlan options:remote_ip=192.168.16.83  options:key=44

 

[root@kunpeng82 scripts]# ovs-vsctl show
ec7f002f-352c-476c-8348-5f2c86c8194f
    Bridge "br1"
        Port "br1"
            Interface "br1"
                type: internal
    Bridge "br0_vtep_ls1"
        Port "br0_vtep_ls1"
            Interface "br0_vtep_ls1"
                type: internal
        Port "vx1"
            Interface "vx1"
                type: vxlan
                options: {key="33", remote_ip="192.168.16.81"}
        Port "0100-tortap2-l"
            Interface "0100-tortap2-l"
                type: patch
                options: {peer="0100-tortap2-p"}
        Port "0000-tortap1-l"
            Interface "0000-tortap1-l"
                type: patch
                options: {peer="0000-tortap1-p"}
    Bridge "br0_vtep_ls2"
        Port "0100-tortap3-l"
            Interface "0100-tortap3-l"
                type: patch
                options: {peer="0100-tortap3-p"}
        Port "br0_vtep_ls2"
            Interface "br0_vtep_ls2"
                type: internal
    Bridge vtep_bfd
        Port vtep_bfd
            Interface vtep_bfd
                type: internal
        Port "bfd192.168.16.81"
            Interface "bfd192.168.16.81"
                type: vxlan
                options: {remote_ip="192.168.16.81"}
        Port "bfd192.168.16.83"
            Interface "bfd192.168.16.83"
                type: vxlan
                options: {key="44", remote_ip="192.168.16.83"}
    Bridge "br0"
        Port "0100-tortap2-p"
            Interface "0100-tortap2-p"
                type: patch
                options: {peer="0100-tortap2-l"}
        Port "br0"
            Interface "br0"
                type: internal
        Port "0100-tortap3-p"
            Interface "0100-tortap3-p"
                type: patch
                options: {peer="0100-tortap3-l"}
        Port "tortap1"
            tag: 0
            Interface "tortap1"
        Port "tortap3"
            Interface "tortap3"
        Port "0000-tortap1-p"
            Interface "0000-tortap1-p"
                type: patch
                options: {peer="0000-tortap1-l"}
        Port "tortap2"
            tag: 0
            Interface "tortap2"
    ovs_version: "2.12.0"

 

[root@kunpeng82 scripts]# vtep-ctl list-remote-macs ls0
ucast-mac-remote

mcast-mac-remote
  unknown-dst -> vxlan_over_ipv4/192.168.16.81

[root@kunpeng82 scripts]# vtep-ctl list-local-macs ls0
ucast-mac-local

mcast-mac-local
  unknown-dst -> vxlan_over_ipv4/192.168.16.81

[root@kunpeng82 scripts]# vtep-ctl add-ucast-remote ls0 d2:40:3e:24:38:f6 192.168.16.83 ----------------------添加一个单播地址
[root@kunpeng82 scripts]# ovs-vsctl show
ec7f002f-352c-476c-8348-5f2c86c8194f
    Bridge "br1"
        Port "br1"
            Interface "br1"
                type: internal
    Bridge "br0_vtep_ls1"
        Port "br0_vtep_ls1"
            Interface "br0_vtep_ls1"
                type: internal
        Port "vx1"
            Interface "vx1"
                type: vxlan
                options: {key="33", remote_ip="192.168.16.81"}
        Port "0100-tortap2-l"
            Interface "0100-tortap2-l"
                type: patch
                options: {peer="0100-tortap2-p"}
        Port "vx2"
            Interface "vx2"
                type: vxlan
                options: {key="33", remote_ip="192.168.16.83"}                    ------------------加进来了 key 不是44
        Port "0000-tortap1-l"
            Interface "0000-tortap1-l"
                type: patch
                options: {peer="0000-tortap1-p"}
    Bridge "br0_vtep_ls2"
        Port "0100-tortap3-l"
            Interface "0100-tortap3-l"
                type: patch
                options: {peer="0100-tortap3-p"}
        Port "br0_vtep_ls2"
            Interface "br0_vtep_ls2"
                type: internal
    Bridge vtep_bfd
        Port vtep_bfd
            Interface vtep_bfd
                type: internal
        Port "bfd192.168.16.81"
            Interface "bfd192.168.16.81"
                type: vxlan
                options: {remote_ip="192.168.16.81"}
        Port "bfd192.168.16.83"
            Interface "bfd192.168.16.83"
                type: vxlan
                options: {key="44", remote_ip="192.168.16.83"}
    Bridge "br0"
        Port "0100-tortap2-p"
            Interface "0100-tortap2-p"
                type: patch
                options: {peer="0100-tortap2-l"}
        Port "br0"
            Interface "br0"
                type: internal
        Port "0100-tortap3-p"
            Interface "0100-tortap3-p"
                type: patch
                options: {peer="0100-tortap3-l"}
        Port "tortap1"
            tag: 0
            Interface "tortap1"
        Port "tortap3"
            Interface "tortap3"
        Port "0000-tortap1-p"
            Interface "0000-tortap1-p"
                type: patch
                options: {peer="0000-tortap1-l"}
        Port "tortap2"
            tag: 0
            Interface "tortap2"
    ovs_version: "2.12.0"
[root@kunpeng82 scripts]# 

 

 

[root@kunpeng82 scripts]# vtep-ctl del-ucast-remote ls0 d2:40:3e:24:38:f6
[root@kunpeng82 scripts]# ovs-vsctl show
ec7f002f-352c-476c-8348-5f2c86c8194f
    Bridge "br1"
        Port "br1"
            Interface "br1"
                type: internal
    Bridge "br0_vtep_ls1"
        Port "br0_vtep_ls1"
            Interface "br0_vtep_ls1"
                type: internal
        Port "vx1"
            Interface "vx1"
                type: vxlan
                options: {key="33", remote_ip="192.168.16.81"}
        Port "0100-tortap2-l"
            Interface "0100-tortap2-l"
                type: patch
                options: {peer="0100-tortap2-p"}
        Port "0000-tortap1-l"
            Interface "0000-tortap1-l"
                type: patch
                options: {peer="0000-tortap1-p"}
    Bridge "br0_vtep_ls2"
        Port "0100-tortap3-l"
            Interface "0100-tortap3-l"
                type: patch
                options: {peer="0100-tortap3-p"}
        Port "br0_vtep_ls2"
            Interface "br0_vtep_ls2"
                type: internal
    Bridge vtep_bfd
        Port vtep_bfd
            Interface vtep_bfd
                type: internal
        Port "bfd192.168.16.81"
            Interface "bfd192.168.16.81"
                type: vxlan
                options: {remote_ip="192.168.16.81"}              // 另外一个192.168.16.83删了
    Bridge "br0"
        Port "0100-tortap2-p"
            Interface "0100-tortap2-p"
                type: patch
                options: {peer="0100-tortap2-l"}
        Port "br0"
            Interface "br0"
                type: internal
        Port "0100-tortap3-p"
            Interface "0100-tortap3-p"
                type: patch
                options: {peer="0100-tortap3-l"}
        Port "tortap1"
            tag: 0
            Interface "tortap1"
        Port "tortap3"
            Interface "tortap3"
        Port "0000-tortap1-p"
            Interface "0000-tortap1-p"
                type: patch
                options: {peer="0000-tortap1-l"}
        Port "tortap2"
            tag: 0
            Interface "tortap2"
    ovs_version: "2.12.0"
[root@kunpeng82 scripts]# 

 

[root@kunpeng82 scripts]# vtep-ctl add-ucast-remote ls2 d2:40:3e:24:38:f6 192.168.16.83
[root@kunpeng82 scripts]# ovs-vsctl show
ec7f002f-352c-476c-8348-5f2c86c8194f
    Bridge "br1"
        Port "br1"
            Interface "br1"
                type: internal
    Bridge "br0_vtep_ls1"
        Port "br0_vtep_ls1"
            Interface "br0_vtep_ls1"
                type: internal
        Port "vx1"
            Interface "vx1"
                type: vxlan
                options: {key="33", remote_ip="192.168.16.81"}
        Port "0100-tortap2-l"
            Interface "0100-tortap2-l"
                type: patch
                options: {peer="0100-tortap2-p"}
        Port "0000-tortap1-l"
            Interface "0000-tortap1-l"
                type: patch
                options: {peer="0000-tortap1-p"}
    Bridge "br0_vtep_ls2"
        Port "vx3"
            Interface "vx3"
                type: vxlan
                options: {key="44", remote_ip="192.168.16.83"} ---------------------------vxlan44 
        Port "0100-tortap3-l"
            Interface "0100-tortap3-l"
                type: patch
                options: {peer="0100-tortap3-p"}
        Port "br0_vtep_ls2"
            Interface "br0_vtep_ls2"
                type: internal
    Bridge vtep_bfd
        Port vtep_bfd
            Interface vtep_bfd
                type: internal
        Port "bfd192.168.16.81"
            Interface "bfd192.168.16.81"
                type: vxlan
                options: {remote_ip="192.168.16.81"}
        Port "bfd192.168.16.83"
            Interface "bfd192.168.16.83"
                type: vxlan
                options: {remote_ip="192.168.16.83"}
    Bridge "br0"
        Port "0100-tortap2-p"
            Interface "0100-tortap2-p"
                type: patch
                options: {peer="0100-tortap2-l"}
        Port "br0"
            Interface "br0"
                type: internal
        Port "0100-tortap3-p"
            Interface "0100-tortap3-p"
                type: patch
                options: {peer="0100-tortap3-l"}
        Port "tortap1"
            tag: 0
            Interface "tortap1"
        Port "tortap3"
            Interface "tortap3"
        Port "0000-tortap1-p"
            Interface "0000-tortap1-p"
                type: patch
                options: {peer="0000-tortap1-l"}
        Port "tortap2"
            tag: 0
            Interface "tortap2"
    ovs_version: "2.12.0"
[root@kunpeng82 scripts]# 

[root@kunpeng82 scripts]# vtep-ctl show
7ad71c45-a370-4718-89cd-c15d142f1fce
    Physical_Switch "br0"
        tunnel_ips: ["192.168.16.81"]            ----还是只有一个
        Physical_Port "tortap1"
            vlan_bindings:
                0="ls0"
        Physical_Port "tortap2"
            vlan_bindings:
                100="ls0"
        Physical_Port "tortap3"
            vlan_bindings:
                100="ls2"

 

 

 vtep-ctl set Physical_Switch br0 tunnel_ips=192.168.16.81

 vtep-ctl add-ps br0 
  vtep-ctl set Physical_Switch br0 tunnel_ips=192.168.16.81，…………
 vtep只能绑定一个bridge
 可以添加多个logic switch
vtep-ctl add-ls ls0
 vtep-ctl bind-ls br0 p0 100 ls0
 vtep-ctl set Logical_Switch ls0 tunnel_key=33
 vtep-ctl add-ucast-remote ls0 d2:40:3e:24:38:f6 192.168.16.83 
 添加一个单播地址,每添加一个形成一个Port "vx"