Hello Friends
I would like to design a network given the topology and the source I use is
http://sndlib.zib.de/home.action
I have managed to read most of the important data in the xml onto lists. Now, I
have two lists, Source and Destination and I'd like to create bi-directional
links between them. My code is as below. And moreover, I'd like to assign some
kind of a bandwidth capacity to the links and similarly, storage and processing
capacity to the nodes. So, I generated some random integers for them. I don't
know how to proceed further to design the topology. I'd prefer to do the
topology design in another .py file probably. I'd be glad if you guys could
lend me a helping hand.
import sys
import xml.dom.minidom as dom
import string
#from xml.dom.minidom import getDOMimplementation
from xml.dom import minidom
from xml.dom.minidom import parse
import os
import random
class PHY_NODES:
def __init__(self, nodeID, x, y, capacity_proc, capacity_stor,
capacity_switch):
self.nodeID = nodeID
self.x = x
self.y = y
self.linklist = []
self.capacity_proc = capacity_proc
self.capacity_stor = capacity_stor
self.capacity_switch = capacity_switch
class PHY_LINKS:
def __init__(self, linkID, source, destination, capacity_bdw):
self.linkID = linkID
self.source = source
self.destination = destination
self.capacity_bdw = capacity_bdw
# Reading Nodes
Read_Data = minidom.parse("germany50.xml")
nodelist = Read_Data.getElementsByTagName("node")
corenodes = []
for node in nodelist :
corenodes.append(node.getAttribute("id"))
nodeid = node.getAttribute("id")
xCoordinates = node.getElementsByTagName("x") [0]
yCoordinates = node.getElementsByTagName("y") [0]
proc = random.randint(20, 40)
stor = random.randint(40, 80)
switch = random.randint(60, 90)
nodeobj = PHY_NODES(nodeid, xCoordinates, yCoordinates, proc, stor,
switch)
# Reading Links
linklist = Read_Data.getElementsByTagName("link")
links = []
sources = []
destinations = []
capacity_link = []
for link in linklist :
linkid = link.getAttribute("id")
Source = link.getElementsByTagName("source") [0]
Destination = link.getElementsByTagName("target") [0]
Capacity = link.getElementsByTagName("capacity") [0]
linkobj = PHY_LINKS(linkid, Source, Destination, Capacity)
sources.append(Source.firstChild.data)
destinations.append(Destination.firstChild.data)
capacity_link.append(Capacity.firstChild.data)
--
https://mail.python.org/mailman/listinfo/python-list
