Spa Interface Addresses On The Cisco 12000 Sip-401; Figure 1-11 Cisco 12000 Sip-401 With Spas Installed - Cisco 12000 - Series Chassis Modular Expansion Base Hardware Installation Manual

Chapter 1 Overview: Cisco 12000 Series Router SPA Interface Processors
Figure 1-11
the top rightmost SPA slot is subslot 1; the bottom leftmost SPA slot is subslot 2; the bottom rightmost
SPA slot is subslot 3.

Figure 1-11 Cisco 12000 SIP-401 with SPAs Installed

1
2

SPA Interface Addresses on the Cisco 12000 SIP-401

A Cisco 12000 Series Router identifies a SPA interface address by its SIP slot number, SPA subslot, and
port number on the SPA, in the format slot/subslot/port. Subslots and ports are numbered starting from
0, so each Cisco 12000 SIP-401 has four subslots. A 4-port SPA would have ports 0 to 3. For example,
the interface address of the second port on a 4-port SPA located in the first SIP subslot, where the SIP is
inserted into router line card slot 6 is 6/0/1.
Release 12.0(32)SY1, OL-8831-01, Rev. G6, July 19, 2007
shows a Cisco 12000 SIP-401 with 4 SPAs installed. The top leftmost SPA slot is subslot 0;
1
0
2
SP A-4
XT 3/E
3
SP A-4
XT 3/E
3
3
SPA subslot 0
SPA subslot 1
2
SP A-4
XT 3/E
3
1
SP A-4 3
XT 3/E
3
4
3 SPA subslot 2
4
SPA subslot 3
Cisco 12000 Series Router SIP and SPA Hardware Installation Guide
Cisco 12000 SIP-401 Overview
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