yi
play

YI R alice bob Dha What nodes processeachpacket O to What nodes - PDF document

Modifiedflood the EO deactivated = Set() on recv(pkt, ifin): if ifin in deactivated: HI return for i in interfaces: if (i !=ifin and i not in deactivated): send(pkt, i) D consider 1 I alice bob 71 1ae R alice bob consider Tht


  1. Modifiedflood the EO deactivated = Set() on recv(pkt, ifin): if ifin in deactivated: HI return for i in interfaces: if (i !=ifin and i not in deactivated): send(pkt, i) D consider 1 I alice bob 71 1ae R alice bob consider Tht Is bob alice YI R alice bob Dha What nodes processeachpacket O to What nodes need to 1 each packet a process take

  2. have fewer This lecture nodes process eachpacket Why Scalability Each link has a limit on the rate at which it can carry packets Challenge switches to deliver without How to get flooding hey alicP Header p 4h17 DK 0 0 02 R alice 3 bob z iF EE R Eats

  3. if Learning u t table = dict() on recv(p, iface): table[p.src] = iface if p.dst in table: send(p, table[p.dst]) else: flood(p, iface) At eg i i 2 bob

  4. Et IN ME ME How to handle hosts moving I 2 2 tall diet 4 y Now for something different HK

  5. notified Enfield A I I I n.EE otefHeFLHoeHIf Bet 1 Number of nodes between Number of nodes between h3 h2 h2dh3 Capacity when hZsendsto Capacity when h2sendsto hosends to h34 hosends to h hs and hs and we forward packets better Can Generalized Forwarding table = dict() on recv(pkt, ifin): if pkt.dst in table: send(pkt, table[pkt.dst]) else: # Drop the packet His How to populate tablef Problem

  6. Q What paths to choose Shortest 11h11 destination iface Esl it Ht destination B I H A C B 0 42 B h3 12 X Y Z A X How to compute shortest paths Two options Use some extension to the spanning tree Lab 2 go over this later protocol graph and Get all nodes to learn the entire Go over this first use Dijkstra's

  7. Protocol learn the graph learn neighbors EH 9 Learn neighbors neighbor i Packet I id nbas FH El Oa on boot beast Cid E3 737 o 1 onreer A onbat n6ns C3 Cid A new kid A Hors 137,1 b

  8. C3 m.br SFI sendCA B it A yo TO I d X YXB A AC B B D c 2J C D P id adf.ES add basepcid ads Onboof onnectfdgq.dz.addCP idle Rada merge Cady

  9. Tf adz has changed beast Cid ada

Download Presentation
Download Policy: The content available on the website is offered to you 'AS IS' for your personal information and use only. It cannot be commercialized, licensed, or distributed on other websites without prior consent from the author. To download a presentation, simply click this link. If you encounter any difficulties during the download process, it's possible that the publisher has removed the file from their server.

Recommend


More recommend