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The second-generation CIP2 (see the following figure) provides a connection to IBM or IBM-compatible mainframes. It supports both IBM mainframe cabling standards: parallel channel (also called bus and tag) and ESCON architecture. To operate with the CIP2, Cisco 7000 series systems require Cisco IOS Release 10.2(13) or later, Release 10.3(13) or later, Release 11.0(10) or later, or Release 11.1(5) or later. Cisco 7500 series systems require Cisco IOS Release 10.3(13) or later, Release 11.0(10) or later, or Release 11.1(5) or later. By default, the CIP2 ships with 32 MB of memory; additional memory is available in 64 and 128 MB sizes.
Use the following table to determine a conservative session capacity for the CIP2 DRAM configurations. If a single feature is being deployed with a single session type, use this table. However, if multiple features are deployed concurrently, use the formulas listed in the table below.
|
Description |
Telnet Sessions |
Other TCP Sessions |
LLC Sessions |
|---|---|---|---|
|
CIP2 with 32 MB DRAM |
4,500 |
450 |
2,000 |
|
CIP2 with 64 MB DRAM1 |
10,000 |
950 |
4,000 |
1. A 128 MB DRAM option is also available for the CIP2; MEM-CIP-128M(=).
|
Description |
Formula |
|---|---|
|
TCP/IP offload feature only |
2.5 MB + (6 KB x number of Telnet sessions) + (64 KB x number of other TCP sessions) |
|
CSNA feature only |
5.0 MB + (12 KB x number of LLC sessions) |
|
TCP/IP offload and CSNA concurrently |
6.5 MB + (6 KB x number of telnet sessions) + (64 KB x number of other TCP sessions) + (12 KB x number of LLC sessions) |