IBM Switch 9077 - Manual (Page 317)

Hardware and Software Information 299
Figure 73. The SP Switch Board
C.6 Updating Router Software
This part provides general information about obtaining and installing new
operating software (hereafter referred to as machine code) for the SP Switch
Router.
C.6.1 The SP Switch Router as an IBM Product
As is noted in this Redbook, the SP Switch Router is based on a product from
Ascend Communications, Inc. IBM customers order and receive the SP
Switch Router from IBM. IBM provides all support for this product for IBM
customers.