On Sun, 2010-02-21 at 00:36 -0800, Julian Elischer wrote: > Jim Sifferle wrote: > > Hi, > > > > I've used ipfw and Dummynet as well as ipfw + DSCP recognition patch and > > pf/altq to simulate Internet and MPLS WAN environments for several > > years. All of my setups have run under VMWare, which for many reasons > > isn't ideal. I would like to collapse all of these VMs into one FreeBSD > > box using jails and vimages. > > > > Does any FreeBSD branch / vimage release combination support separate pf > > AND ipfw configurations per jail? I need ipfw+pf/altq for HFSC queuing > > to simulate the queueing effects of MPLS provider edge and core > > routers. > > -current (9) should be close, with patches for pf supplied by ceri. > > 8 can do separate ipfw but pf is not changed. > 9 has bugs fixed. but I'm not sure if the changes for pf went in.. > they do exis tif they are not in already.
Hmmm... I think I need separate pf instances. I apply pf/altq QoS queues to both interfaces of the VM that simulates the MPLS provider edge router. The customer facing interface is a VLAN, and the QoS queues for this interface could be applied using the system-wide pf instance. The provider facing interface would be an eiface attached to the vimage and I don't believe available to pf at boot time. I will have to look around to see if the changes to support multiple pf instances have made it into 9-CURRENT. Where in the source tree should I look, or which mailing list would be best to ask this question on? > > I'm hoping the latest 7.2-STABLE-201001 snapshot will work. The DSCP > > recognition patch for ipfw that I rely on doesn't seem to work with > > 8.0. > > > > If 7.2 won't work for my needs, but 8 or 9-CURRENT will, is anyone aware > > of an updated ipfw DSCP patch? I haven't seen anything on Google or the > > freebsd-ipfw mailing list. > > what is DSCP? DSCP stands for Differentiated Services Code Point, a six byte field in the IP header used to differentiate between Classes of Service, and commonly used for CoS/QoS provisioning on MPLS WAN networks. The DSCP IP header field superceded the IP TOS field as of RFC 2474. Here's a pretty lightweight overview of how DSCP can be used: http://www.cisco.com/en/US/tech/tk543/tk757/technologies_tech_note09186a00800949f2.shtml For those who are interested, I've attached a simple ASCII diagram of the vimage layout I envision (and currently have using VMWare). Thanks for your help... Jim
--------------------------------------------------------------------------------------------------------------------------------------------- | Cisco 2950 48 Port Switch: Site 1: Vlan 100: LAN, Vlan 101: Internet, Vlan 102: MPLS | | Site 2: Vlan 200: LAN, Vlan 201: Internet, Vlan 202: MPLS | | Site 3: Vlan 300: LAN, Vlan 301: Internet, Vlan 302: MPLS | | Site 4: Vlan 400: LAN, Vlan 401: Internet, Vlan 402: MPLS | | | | Trunk Trunk Trunk Trunk | --------------------|-------------------------------|-------------------------------|-------------------------------|------------------------ | | | | / \ / \ / \ / \ / \ / \ / \ / \ / \ / \ / \ / \ --------------------------------------------------------------------------------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | ---------------------- | ---------------------- | ---------------------- | ---------------------- | | | | | | | | | | | | | | | | | | MPLS PE RTR Vimage | | | MPLS PE RTR Vimage | | | MPLS PE RTR Vimage | | | MPLS PE RTR Vimage | | | | | x2 Interfaces | | | x2 Interfaces | | | x2 Interfaces | | | x2 Interfaces | | | | | (Vlan 102, eiface) | | | (Vlan 202, eiface) | | | (Vlan 302, eiface) | | | (Vlan 302, eiface) | | | | | IPFW+DSCP/ALTQ | | | IPFW+DSCP/ALTQ | | | IPFW+DSCP/ALTQ | | | IPFW+DSCP/ALTQ | | | | | Quagga bgpd | | | Quagga bgpd | | | Quagga bgpd | | | Quagga bgpd | | | | ---------------------- | ---------------------- | ---------------------- | ---------------------- | | | | | | | | | | | | | | | | | | | | | | | ---------------------------------------------------------------------------------------------------------------------- | | | | : : : | | | | | : : : | | | | | MPLS Cloud RTR Vimage: x4 Interfaces (Via MPLS PE Router Vimages); IPFW + Dummynet Pipes / Quagga bgpd | | | | | : : : | | | | | : : : | | | | ---------------------------------------------------------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | -------------------------------------------------------------------------------------------------------------------------- | | | | | | | | | | | Internet Cloud RTR Vimage: x4 Interfaces (Vlan 101, 201, 301, 401); IPFW + Dummynet Pipes; Static routing | | | | | | | | | | | -------------------------------------------------------------------------------------------------------------------------- | | | |--------------------------------------------------------------------------------------------------------------------------------------------
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