add switch s1 between routers r4, r5, r6

Author: plungaroni

nets/exp-8routers-isis-ipv6/isis8d.py

@@ -118,6 +118,8 @@ def create_topo(my_net):
     r7 = my_net.addHost(name='r7', cls=Router)
     r8 = my_net.addHost(name='r8', cls=Router)
 
+    s1 = my_net.addHost(name='s1', cls=Router)
+
     #note that if the interface names are not provided,
     #the order of adding link will determine the
     #naming of the interfaces (e.g. on r1: r1-eth0, r1-eth1, r1-eth2...)
@@ -142,16 +144,16 @@ def create_topo(my_net):
     add_link(h33,r3)
     #r3 - r4
     add_link(r3,r4)
-    #r4 - r5
-    add_link(r4,r5)
-    #r4 - r6
-    add_link(r4,r6)
+    #r4 - s1
+    add_link(r4,s1)
+    #r6 - s1
+    add_link(r6,s1)
     #hosts of r5
     add_link(h51,r5)
     add_link(h52,r5)
     add_link(h53,r5)
-    #r5 - r6
-    add_link(r5,r6)
+    #r5 - s1
+    add_link(r5,s1)
     #r6 - r7
     add_link(r6,r7)
     #r6 - r8

nets/exp-8routers-isis-ipv6/nodeconf/r4/isisd.conf

@@ -7,12 +7,7 @@ ipv6 router isis FOO
  ip router isis FOO
  isis hello-interval 5
 !
-interface r4-r5
-ipv6 router isis FOO
- ip router isis FOO
- isis hello-interval 5
-!
-interface r4-r6
+interface r4-s1
 ipv6 router isis FOO
  ip router isis FOO
  isis hello-interval 5

nets/exp-8routers-isis-ipv6/nodeconf/r4/zebra.conf

@@ -10,11 +10,8 @@ debug zebra rib
 interface r4-r3
  ipv6 address fcf0:0:3:4::2/64
 !
-interface r4-r5
- ipv6 address fcf0:0:4:5::1/64
-!
-interface r4-r6
- ipv6 address fcf0:0:4:6::1/64
+interface r4-s1
+ ipv6 address fcf0:0:d1::4/64
 !
 interface lo
  ipv6 address fcff:4::1/32

nets/exp-8routers-isis-ipv6/nodeconf/r5/isisd.conf

@@ -17,12 +17,7 @@ log file nodeconf/r5/isisd.log
 ! ip router isis FOO
 ! isis hello-interval 5
 !
-interface r5-r4
-ipv6 router isis FOO
- ip router isis FOO
- isis hello-interval 5
-!
-interface r5-r6
+interface r5-s1
 ipv6 router isis FOO
  ip router isis FOO
  isis hello-interval 5

nets/exp-8routers-isis-ipv6/nodeconf/r5/zebra.conf

@@ -16,11 +16,8 @@ interface r5-h52
 interface r5-h53
  ipv6 address fd00:0:53::1/64
 !
-interface r5-r4
- ipv6 address fcf0:0:4:5::2/64
-!
-interface r5-r6
- ipv6 address fcf0:0:5:6::1/64
+interface r5-s1
+ ipv6 address fcf0:0:d1::5/64
 !
 interface lo
  ipv6 address fcff:5::1/32

nets/exp-8routers-isis-ipv6/nodeconf/r6/isisd.conf

@@ -2,12 +2,7 @@ hostname r6
 password zebra
 log file nodeconf/r6/isisd.log
 !
-interface r6-r4
- ipv6 router isis FOO
- ip router isis FOO
- isis hello-interval 5
-!
-interface r6-r5
+interface r6-s1
  ipv6 router isis FOO
  ip router isis FOO
  isis hello-interval 5

nets/exp-8routers-isis-ipv6/nodeconf/r6/zebra.conf

@@ -7,11 +7,8 @@ log file nodeconf/r6/zebra.log
 debug zebra events
 debug zebra rib
 !
-interface r6-r4
- ipv6 address fcf0:0:4:6::2/64
-!
-interface r6-r5
- ipv6 address fcf0:0:5:6::2/64
+interface r6-s1
+ ipv6 address fcf0:0:d1::6/64
 !
 interface r6-r7
  ipv6 address fcf0:0:6:7::1/64

nets/exp-8routers-isis-ipv6/nodeconf/s1/start.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+BASE_DIR=nodeconf
+NODE_NAME=s1
+
+#enable creating bridge
+ip link add br0 type bridge
+ip link set br0 up
+
+# add all interfaces to bridge br0
+for dev in $(ip -o -6 a | awk '{ print $2 }' | grep -v "lo")
+do
+ip link set $dev master br0
+done