Specifications

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Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Chapter 1 Preparing for Configuration
Guidelines for Creating an IP Address Plan
Note Cisco MGX 8850 software releases prior to Release 2.0(12) supported unique addresses for the boot IP
addresses on the PXM45 cards in slots 7 and 8. This approach required three unique addresses per
switch. Beginning with Release 2.0(12), the boot IP addresses for both slots 7 and 8 must be set to the
same IP address.
When planning IP addresses for your switch, use the following guidelines:
• If the switch has one PXM45 card, set the boot and LAN IP addresses to the same address.
• If the switch has two PXM45 cards and you want to minimize the number of IP addresses used, set
both boot IP addresses and the LAN IP address to the same address.
• If the switch has two PXM45 cards and you want to maximize your control options from remote
locations, assign the same boot IP address to each PXM45 card, and assign a different IP address to
the LAN IP address.
• Be sure to define the default gateway IP address when defining the boot IP addresses.
• To minimize router configuration, choose boot, LAN, and default gateway IP addresses that are all
on the same subnet.
For instructions on setting boot and LAN IP addresses, see the “Setting the LAN IP Addresses” section
in Chapter 2, “Configuring General Switch Features.”