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Fixed little mistake #205

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Fixed little mistake #205

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12 changes: 6 additions & 6 deletions book-2nd/principles/dv.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@ A router that uses distance vector routing regularly sends its distance vector o
v.add(Pair(d,R[d].cost))
for i in interfaces
# send vector v on this interface
send(v,interface)
send(v,i)


When a router boots, it does not know any destination in the network and its routing table only contains itself. It thus sends to all its neighbours a distance vector that contains only its address at a distance of `0`. When a router receives a distance vector on link `l`, it processes it as follows.
Expand Down Expand Up @@ -124,8 +124,8 @@ This count to infinity problem occurs because router `A` advertises to router `D
v=Vector()
for d in R[]:
if (R[d].link != l) :
v=v+Pair(d,R[d.cost])
send(v)
v.add(Pair(d,R[d].cost))
send(v,l)
# end for d in R[]
#end for l in interfaces

Expand All @@ -140,10 +140,10 @@ This technique is called `split-horizon`. With this technique, the count to infi
v=Vector()
for d in R[]:
if (R[d].link != l) :
v=v+Pair(d,R[d.cost])
v.add(Pair(d,R[d].cost))
else:
v=v+Pair(d,infinity);
send(v)
v.add(Pair(d,infinity))
send(v,l)
# end for d in R[]
#end for l in interfaces

Expand Down