Checking Hardware And Software Compatibility; Bandwidth Oversubscription - Cisco 7600 SIP 200 - SPA Interface Processor 200 Hardware Installation Manual

Checking Hardware and Software Compatibility

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Checking Hardware and Software Compatibility
To check the minimum software requirements of Cisco IOS software with the hardware installed on your
router, Cisco maintains the Software Advisor tool on Cisco.com. This tool does not verify whether SPA
interface processors (SIPs) or SPAs within a system are compatible, but it does provide the minimum
Cisco IOS requirements for individual hardware modules or components.
Access to this tool is limited to users with Cisco.com login accounts.
Note
To access Software Advisor, click Login at Cisco.com, type "Software Advisor" in the SEARCH box,
and click GO. Click the link for the Software Advisor tool.
Choose a product family or enter a specific product number to search for the minimum supported
software release needed for your hardware.

Bandwidth Oversubscription

Oversubscribing the bandwidth limit recommendations of a router can result in decreased or degraded
performance. For this reason, it is important to determine the amount of bandwidth used by the SPAs on
the router and verify that the total bandwidth used by all SPAs does not exceed the recommended
bandwidth limit of the router. It is also important not to exceed the bandwidth of the SIP. For information
on SIP bandwidth, see
Table 3-1
as the cumulative bandwidth (total bandwidth) for all ports available on the SPA.
Table 3-1
SPA
2-Port Channelized T3 SPA
4-Port Channelized T3 SPA
8-Port Channelized T1/E1 SPA
2-Port OC-3c/STM-1 ATM SPA
4-Port OC-3c/STM-1 ATM SPA
1-Port Channelized STM-1/OC-3 SPA 155.52 Mbps
1-Port Clear Channel OC-3 ATM SPA
V2
Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
3-2
1-Port Channelized OC-3 STM1 ATM CEoP SPA Overview, page 3-72
24-Port Channelized T1/E1 ATM CEoP SPA Overview, page 3-73
2-Port Channelized T3/E3 ATM CEoP SPA Overview, page 3-79
Chapter 2, "SIP Summary."
provides information about the bandwidth for each port (per-port bandwidth) on a SPA, as well
SPA Bandwidth Capacity
Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters
Number of
Per-Port Bandwidth Ports
44.736 Mbps 2
44.736 Mbps 4
1.544 Mbps (T1) 8
2.048 Mbps (E1)
155.52 Mbps 2
155.52 Mbps 4
1
155.52 Mbps 1
Total Bandwidth
89.47 Mbps
178.94 Mbps
12.35 Mbps (T1)
16.38 Mbps (E1)
311.04 Mbps
622.08 Mbps
155.52 Mbps
155.52 Mbps
OL-5052-14