AnyBed: Design and implementation of experimental network building system with independence from specific cluster environments

Transcription

1 AnyBed: XML XML AnyBed: Design and implementation of experimental network building system with independence from specific cluster environments Mio SUZUKI Hiroaki HAZEYAMA Youki KADOBAYASHI Graduate School of Information Science, Nara Institute of Science and Technology Abstract Complexity of the physical resource assignment and numerous configurations makes it difficult for an experimenter to build an experimental network. Also, the differences of description among configuration files used on each software and hardware makes it difficult to reuse these files. In this paper, we propose the AnyBed: the experimental network building system using the logical and physical network topologies which are described in XML. Mapping these two topologies, AnyBed can build intended logical network topology on any PC clusters. We have also evaluated an implementation of AnyBed using two distinct clusters

2 IP VLAN CPU 2 2 VLAN syslog 2 2 StarBED[1] IP Traceback [2] 64 PC BGP 4 PC PC PC PC PC PC AnyBed AnyBed PC 2 AnyBed AnyBed AnyBed 1 AnyBed (designing layer) (assigning layer) (reflecting layer) XML AnyBed 3 2 2

3 = #. #. :;<; >@?ACB D@E@B EFDHG IJF?LK 4(576 ILAMA%B D@E$B E$DNG IJ@? K RTSVUW&YXC&(# &F+Z[) * "!$#%&('%) * +,)-* K?%O2G2?MPMQ2B E@DHG I JF? K / <nodes> <node name="mc12" os="freebsd"> <interface name="bge0" bandwidth="1000" dot1q="yes" purpose="management" managementip=" "> <interface name="bge1" bandwidth="1000" dot1q="yes" purpose="experiment"> <link tonode="mc1-sw2" toint="ethernet 1/2"/> <interface name="bge2" bandwidth="1000" dot1q="yes" purpose="experiment"> <link tonode="mc1-sw2" toint="ethernet 1/7"/> </node> </nodes> 2: 1: AnyBed 2.1 AnyBed 1 1. (logical network file) 2. (physical network file) XML XML (XML topology file) 3. XML (actual config file) 4. AnyBed AnyBed q <nodes> <nodes> <node> <node> <interface> <interface> <nodes> <node name="nodea"> <interface name="nodea-int1"> <network name="net1"/> <interface name="nodea-int2"> <network name="net2"/> </node> </nodes> 3: <link> 2 mc12 bge0 bge1 bge2 2 mc1-sw2 ethernet 1/2 ethernet 1/7 <nodes> <nodes> <node> <node> <interface> <interface> <network> 3 NodeA NodeA-Int1, NodeA-Int2 Net1, Net2 3

4 2.3 4(576 PC MAC 2 3 8:9;9%< =?>$< >$=A@ 8B?C D D C%E2@2C;F;G2< >?=H@ 8 BIC D UV W X:Y:Z [ \ ]^ JLKNMO&QPR&(# &I+ST) * #. [ _R`abV cdc;]i` ]^2Y Z2_^ "!$#%&('%) * +,)-* #. / : AnyBed IP VLAN 3 dispatcher XML node - interface - link node node - interface - network node dispatcher link network XML AnyBed AnyBed AnyBed 4 (dispatcher) (config generator) 3.1 Ruby XML XML 1 LAN 2 VLAN q 2 VLAN ID 4

5 # BedNodes nodes # BedPhysicalNodes pnodes # BedPhysicalInterface maxleftbwpint # sort(nodes) # sort(pnodes) # sort(nodes.int) # sort(pnodes.int) nodes.each { n p = pnodes.shift n.int.each { average_bandwidth = p.int.bandwidth_total / n.int.bandwidth_total p.int.bandwidth_left = p.int.bandwidth_total maxleftbwpint = search_max_max_bandwidth_left(p.int) assign_vlan(maxleftbwpint, n.int) maxleftbwpint.bandwidth_left -= average_bandwidth } } 5: VLAN ID /8 2 VLAN FreeBSD rc.conf, hosts, zebra.conf, ospfd.conf 2 2 DELL PowerEdge 1655MC Integrated Switch, ExtremeNetworks Summit48, Summit5i 5 1: PC CPU NIC 2 Intel Pentium3 1.4GHz 1024MB Broadcom BCM5703X 2 DELL PowerEdge1655MC Switch 4 AnyBed 4.1 PC PC PC AnyBed 1 1 DELL config reflector PXE boot[3] OS PXE FreeBSD TFTP kernel image disk image FTP 5

6 2: PC 1 CPU Intel Pentium3 450MHz 256MB 3 NIC Intel Pro 10/100B/100+ 3Com 3c905B-TX 4 CPU Intel Pentium3 900MHz 256MB 7 NIC 3Com 3c905B-TX Netgear GA620 FoundryNetworks EdgeIron4802F 2 ExtremeNetworks Summit48 ExtremeNetworks Summit5i 3: AnyBed 2 2 AnyBed PXE Boot NFS NFS OSPF Zebra OSPF telnet show ip ospf route 10, AnyBed AnyBed 1 rc.conf, zebra.conf, ospfd.conf, hosts = = 30 AnyBed AnyBed OSPF PC 6

7 4: 1000 Total Loading Topology File Assigning resources Generating configs CPU UltraSPARCIII 900MHz 24 64GB Solaris 8 Ruby XML REXML time(sec) number of nodes PC StarBED PC 512 VLAN 512 IEEE802.1Q VLAN 4096 VLAN VLAN 4000 VLAN : time(sec) Assigning resources number of nodes 7: () NetBed[4] [5] ModelNet[6] 7

8 MBytes Memory Consumption number of nodes 8: [3] Intel Corporation, Preboot Execution Environment (PXE) Specifiction Version 2.1, September [4] Brian White, Jay Lepreau, Leigh Stoller, Robert Ricci, Shashi Guruprasad, Mac Newbold, Mike Hibler, Chad Barb, and Abhijeet Joglekar. An integrated experimental environment for distributed systems and networks. In Proceedings of the Fifth Symposium on Operating Systems Design and Implementation, December [5] Robert Ricci, Chris Alfeld, and Jay Lepreau. A solver for the network testbed mapping problem. In ACM SIGCOMM Computer Communications Review 33(2), [6] Amin Vahdat, Ken Yocum, Kevin Walsh, Priya Mahadevan, Dejan Kostic, Jeff Chase, and David Becker. Scalability and accuracy in a large-scale network emulator. In Proceedings of 5th Symposium on Operating Systems Design and Implementation (OSDI), Dec AnyBed AnyBed [1] IT. [2],,. IP. 103, E