1. CCIE TIPS
CREATING THE VLAN
PROPAGATION DIAGRAM
John Berry
CCIE 3162

3. COUNT THE
NUMBER OF NON
LOOPBACK SUBNET
40
20
10
999
50 30
150
FR1
FR2
Rtd
Better ..

4. COUNT THE
NUMBER OF NON
LOOPBACK SUBNET
LANs
10 20
40
999
30
50 150
Rtd
WANs
FR1
FR2

5. COUNT THE
NUMBER OF NON
LOOPBACK SUBNET
LANs
10 20
40
999
30
50 150
Rtd
8 LAN
WANs
FR1
FR2
2 WAN

6. 19

7. Router - Interface - Vlan Vlan - Router
19
•
•
•
•
•
•
•
Draw one
dot per
VLAN
Write this
on the left
hand side
Take a clean
sheet of paper
Write this
on the right
hand side

8. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19

9. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
Check the
diagram again

10. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
Check the
diagram again

11. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
Check the
diagram again
For each Router,
identify each
interface and
the VLAN its
connected to

12. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
For each Router,
identify each
interface and
the VLAN its
connected to

13. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
For each Router,
identify each
interface and
the VLAN its
connected to

14. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
For each Router,
identify each
interface and
the VLAN its
connected to

15. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
For each Router,
identify each
interface and
the VLAN its
connected to

16. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
For each Router,
identify each
interface and
the VLAN its
connected to

17. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
For each Router,
identify each
interface and
the VLAN its
connected to

18. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
R1 F0/1 20
R1 F0/1 10
For each Router,
identify each
interface and
the VLAN its
connected to

19. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19

20. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
Ok now do this
for the rest of
the links

21. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
Ok now do this
for the rest of
the links

22. Router - Interface - Vlan Vlan - Router
•
•
•
•
•
•
•
•
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
Ok now do this
for the rest of
the links

23. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
•
•
•
•
•
•
•
•

24. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
20
10
40
Rtd
30
150
50
999
•
•
•
•
•
•
•
•
Identify each
VLAN

25. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
•
•
•
•
•
•
•
•
10
20
30
40
50
150
999
Rtd

26. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
•
•
•
•
•
•
•
•
10
20
30
40
50
150
999
Rtd
Now using the
left hand table
write down
each device the
VLAN is
attached to

27. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
10
20
30
40
50
150
999
Rtd

28. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
10
20
30
40
50
150
999
Rtd

29. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
10
20
30
40
50
150
999
Rtd
Now using the
left hand table
write down
each device the
VLAN is
attached to

31. Now. Consult
the physical
diagram to
check how the
routers are
connected

32. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
10
20
30
40
50
150
999
Rtd

33. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
10
20
30
40
50
150
999
Rtd
So we have 6
routers and 4
switches.
lets draw them

34. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW1
SW2
SW3
SW4
R1
R2
R3
R4
R5
R6
R3
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
10
20
30
40
50
150
999
Rtd
So we have 6
routers and 4
switches.
lets draw them

35. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW1
SW2
SW3
SW4
R1
R2
R3
R4
R5
R6
R3
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
10
20
30
40
50
150
999
Rtd

36. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW1
SW2
SW3
SW4
R1
R2
R3
R4
R5
R6
R3
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
10
20
30
40
50
150
999
Rtd
Lets now lay
them out

37. Router - Interface - Vlan Vlan - Router
19
SW4 SW3
SW2
SW1
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
R2
R3
R4 R1
R5
R6
R3
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2

38. Router - Interface - Vlan Vlan - Router
19
SW4 SW3
SW2
SW1
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
R2
R3
R4 R1
R5
R6
R3
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
So using the
information
from the tables
lets start
joining them up

39. Router - Interface - Vlan Vlan - Router
SW4 SW3
0/2 0/3 0/4 0/5 0/6 0/1 0/3
Access
Trunk
Routed
SVI
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW2
SW1
R2
R3
R4 R1
R5
R6
R3
0/0
0/0
0/0
0/0
0/0 0/1
0/1
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2

40. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW4 SW3
SW2
SW1
0/2 0/3 0/4 0/5 0/6 0/1 0/3
R2
R3
R4 R1
R5
R6
R3
0/0
0/0
0/0
0/0
0/0 0/1
0/1
40
30,50
40
50,150
20,40 10,20
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
Access
Trunk
Routed
SVI

41. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW4 SW3
0/22 0/21 0/22
SW2
SW1
0/19 0/19
0/2 0/3 0/4 0/5 0/6 0/1 0/3
R2
R3
10,20
R4 R1
R5
R6
R3
0/22 0/21 0/22
0/19 0/19
0/23 0/23
0/24 0/24
0/0
0/0
0/0
0/0
0/0 0/1
0/1
40
30,50
40
50,150
20,40 10
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
Access
Trunk
Routed
SVI

42. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW4 SW3
0/22 0/21 0/22
SW2
SW1
0/19 0/19
0/2 0/3 0/4 0/5 0/6 0/1 0/3
R2
R3
10,20
R4 R1
R5
R6
R3
0/22 0/21 0/22
0/19 0/19
0/23 0/23
0/24 0/24
0/0
0/0
0/0
0/0
0/0 0/1
0/1
10
10
999
40
30,50
40
50,150
20,40
50 150,199
10,20
20
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
Access
Trunk
Routed
SVI

43. Lets look at the steps
again

44. Router - Interface - Vlan Vlan - Router
19
SW4 SW3
SW2
SW1
•
•
•
•
•
•
•
•

45. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW4 SW3
SW2
SW1
•
•
•
•
•
•
•
•

46. Router - Interface - Vlan Vlan - Router
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 50
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW4 SW3
SW2
SW1
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2

47. Router - Interface - Vlan Vlan - Router
SW4 SW3
0/19 0/19
0/22 0/21 0/22
0/2 0/3 0/4 0/5 0/6 0/1 0/3
10,20
19
R1 F0/1 20
R1 F0/1 10
R2 F0/0 40
R3 F0/1 Route
R3 F0/0 30
R3 F0/0 40
R4 F0/0 40
R5 F0/0 150
R5 F0/0 50
R6 F0/0 20
R6 F0/0 40
SW1 RTR/
SVI
999
SW1 RTR/
SVI
10
SW2 RTR/
SVI
RTR
SW3 RTR/
SVI
10
SW2
SW1
R2
R3
R4 R1
R5
R6
R3
0/22 0/21 0/22
0/19 0/19
0/23 0/23
0/24 0/24
0/0
0/0
0/0
0/0
0/0 0/1
0/1
10
10
999
40
30,50
40
50,150
20,40
50 150,199
10,20
20
•10 - R1,SW1,SW3
•20 - R1,R6
•30 - R3
•40 - R6, R2,R4
•50 - R3, R5
•150 - R5 BB1
•999- BB2, SW2
•Rtd - R3,SW2
Access
Trunk
Routed
SVI

48. John Berry
With thanks to
Andrew Bruce Caslow