IP Addressing Overview
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When you assign subnet addresses internally and have more than one engine, all ISSs and IXSs
on the left side of the rear of the engine are on one subnet, while all ISSs and IXSs on the right
side of the rear of the engine are on the other subnet.
See the following tables provide an example of the address assignments described in the
following bullets.
•
Then two static IP addresses are assigned to the upper left-most ISB slot in the engine when
looking at the engine from the front. The addresses are 192.168.10.10 on subnet 10 and
192.168.20.10 on subnet 20. You are assigning the address to the slot, not the blade. The ISB
can be physically moved, but the IP address remains with the slot.
•
As the slots go sequentially from top left to right, over a row and starting at the left again,
each slot is assigned a static IP address that is incremented by one until you reach the
right-most bottom slot that contains addresses of 192.168.10.25 and 192.168.20.25.
•
At this point, each ISS or IXS is assigned a base address. One ISS is assigned a subnet 10
address of 192.168.10.26 and the other a subnet 20 address of 192.168.20.26 (unless the you
want to change the IP scheme or subnet mask). Each side of the engine is assigned 17
addresses on each network for a total of 34 addresses per engine.
•
You then increment the subnet 10 and subnet 20 addresses by one and assign them to the
switch blades in the next engine.
•
The ISB slots and switches are again incremented.
First Engine Internal Static IP Address Assignments
ISB 0
192.168.10.10 (left side)
192.168.20.10 (right side)
ISB 1
192.168.10.11 (left side)
192.168.20.11 (right side)
ISB 2
192.168.10.12 (left side)
192.168.20.12 (right side)
ISB 3
192.168.10.13 (left side)
192.168.20.13 (right side)
ISB 4
192.168.10.14 (left side)
192.168.20.14 (right side)
ISB 5
192.168.10.15 (left side)
192.168.20.15 (right side)
ISB 6
192.168.10.16 (left side)
192.168.20.16 (right side)
ISB 7
192.168.10.17 (left side)
192.168.20.17 (right side)
ISB 8
192.168.10.18 (left side)
192.168.20.18 (right side)
ISB 9
192.168.10.19 (left side)
192.168.20.19 (right side)
ISB 10
192.168.10.20 (left side)
192.168.20.20 (right side)
ISB 11
192.168.10.21 (left side)
192.168.20.21 (right side)
ISB 12
192.168.10.22 (left side)
192.168.20.22 (right side)
ISB 13
192.168.10.23 (left side)
192.168.20.23 (right side)
ISB 14
192.168.10.24 (left side)
192.168.20.24 (right side)
ISB 15
192.168.10.25 (left side)
192.168.20.25 (right side)
Switch (ISS or IXS)
192.168.10.26
Switch (ISS or IXS)
192.168.20.26
