From nobody@cse.Buffalo.EDU Wed Jun 30 17:01 EDT 1999 From: Nobody Date: Wed, 30 Jun 1999 17:01:41 -0400 (EDT) To: techreps@cse.Buffalo.EDU Subject: techrep: POST request Content-Type: text Content-Length: 1441 Comments: the file is on castor. wonder if/when I'll get a report number for future reference. ContactPerson: qiao@computer.org Remote host: photon.cse.buffalo.edu Remote ident: qiao ### Begin Citation ### Do not delete this line ### %R 99-05 %U /ftp/pub/WWW/faculty/qiao/mcast.ps %A Qiao, C. %A Jeong, M. %A Guha, A. %A Zhang, X. %A Wei, J. %T WDM Multicasting in IP over WDM Networks %D May 1, 1999 %I Department of Computer Science and Engineering, SUNY Buffalo %K multicasting, Wavelength division multiplexing (WDM), Internet Protocol (IP), DVMRP, optical burst switching, %X Supporting WDM multicasting in an IP over WDM network poses interesting problems because some WDM switches may be incapable of switching an incoming signal to more than one output interface. An approach to WDM multicasting based on wavelength-routing, which constructs a multicafor each multicast session so that multicast-incapable WDM switches do not need to multicast, was proposed and evaluated in one of our previous study. Such an approach requires global knowledge of the WDM layer. In this paper, we study WDM multicasting in an IP over WDM network under the framework of Multiprotocol Label Switching (MPLS) using optical burst/label switching (OBS/OLS). We propose a protocol which modifies a multicast tree constructed by distance vector multicast routing protocol (DVMRP) into a multicast forest based on the local information only.