On May 27, 2013, at 12:35 , ext Lorand Jakab wrote: > Since commit 0ad90c8 it is possible to set tunnel destination IP address > in the flow. This allows creating a LISP "map-cache" in the flow table. > Update the LISP documentation to reflect these possibilities. > > Signed-off-by: Lorand Jakab <loja...@cisco.com> > --- > README-lisp | 18 +++++++++++------- > 1 file changed, 11 insertions(+), 7 deletions(-) > > diff --git a/README-lisp b/README-lisp > index 7c9071a..5bf44ac 100644 > --- a/README-lisp > +++ b/README-lisp > @@ -6,11 +6,12 @@ not carry Ethernet headers, and ARP requests shouldn't be > sent over the > tunnel. Because of this, there are some additional steps required for setting > up LISP tunnels in Open vSwitch, until support for L3 tunnels will improve. > > -This guide assumes a point-to-point tunnel between two VMs connected to OVS > -bridges on different hypervisors connected via IPv4. Of course, more than > one > -VM may be connected to any of the hypervisors, using the same LISP tunnel, > and > -a hypervisor may be connected to several hypervisors over different LISP > -tunnels. > +This guide assumes tunneling between two VMs connected to OVS bridges on > +different hypervisors reachable over IPv4. Of course, more than one VM may > be > +connected to any of the hypervisors, and a hypervisor may communicate with > +several different hypervisors over the same lisp tunneling interface. A LISP > +"map-cache" can be implemented using flows, see example at the bottom of this > +file. > > There are several scenarios: > > @@ -58,11 +59,14 @@ bridge instance, and become numbered 1, 2, and 3 > respectively: > ovs-vsctl add-br br0 > ovs-vsctl add-port br0 tap0 > ovs-vsctl add-port br0 eth0 > - ovs-vsctl add-port br0 lisp0 -- set Interface lisp0 type=lisp > options:remote_ip=<OVSx_IP> > + ovs-vsctl add-port br0 lisp0 -- set Interface lisp0 type=lisp > options:remote_ip=flow options:out_key=flow options:in_key=flow >
This can be simplified a bit by using "options:key=flow", which implies both "out_key=flow" and "in_key=flow", so it would become: + ovs-vsctl add-port br0 lisp0 -- set Interface lisp0 type=lisp options:remote_ip=flow options:key=flow > Flows on br0 are configured as follows: > > priority=3,dl_dst=02:00:00:00:00:00,action=mod_dl_dst:<VMx_MAC>,output:1 > priority=2,in_port=1,dl_type=0x0806,action=NORMAL > - > priority=1,in_port=1,dl_type=0x0800,vlan_tci=0,nw_src=<EID_prefix>,action=output:3 > + > priority=1,in_port=1,dl_type=0x0800,vlan_tci=0,nw_src=<EID_prefix>,action=set_field:<OVSx_IP>->tun_dst,output:3 > priority=0,action=NORMAL > + > +Optionally, if you want to use Instance ID in a flow, you can set it with > +"action=set_tunnel=<IID>". The syntax here should be: +"action=set_tunnel:<IID>". Jarno _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
