Specifications

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Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
New and Changed Information
New Features in Cisco IOS Release 12.0(5)S
Many of the new features in Cisco IOS Release 12.0 S were originally introduced in other Cisco IOS
releases. For more complete information, refer to the original release.
ATM PVC Trap Support
Platforms: Cisco 7200 series, Cisco 7500/RSP series, Cisco 12000 series
The ATM PVC Trap Support feature provides Simple Network Management Protocol (SNMP)
notification for permanent virtual circuit (PVC) failures, and it provides SNMP access to PVC status
tables.
Normally, a management station is not notified when an ATM PVC goes down. The ATM PVC Trap
Support feature enables an agent to send the required PVC traps for this notification. It also provides
support for these PVC status tables: atmCurrentlyFailingPVclTable and atmInterfaceExtTable.
Available Bit Rate Servicing and Virtual Path Shaping on PA-A3 Port Adapters
Platforms: Cisco 7200 series, Cisco 7500/RSP series
The PA-A3 ATM port adapters (PA-A3-T3, PA-A3-E3, PA-A3-OC3MM, PA-A3-OC3SMI, and
PA-A3-OC3SML) available on Cisco 7500 series routers now support the following new features:
• Available bit rate (ABR)—The ABR service category is specified in the ATM Forum Traffic
Management Specification Version 4.0.
• Virtual Path Shaping—A virtual path (VP) is a logical association or bundle of virtual circuits
(VCs).
The PA-A3 ATM port adapters support multiplexing of one or more VCs over a VP that is shaped at a
constant bandwidth. To use this feature, you configure a permanent virtual path (PVP) with a specific
virtual path identifier (VPI). Any VCs that are created subsequently with the same VPI are multiplexed
onto this VP; the traffic parameters of individual VCs are ignored.
Cisco 7576 Router
Platforms: Cisco 7500/RSP series
The Cisco 7576 router is the newest member of the Cisco 7500 series of routers, which consists of the
5-slot Cisco 7505, 7-slot Cisco 7507, and the 13-slot Cisco 7513. The Cisco 7576 router supports
multiprotocol and multimedia routing and bridging with a wide variety of protocols and any
combination of available electrical interfaces and media.
The Cisco 7576 router consists of two independent routers configured on a single backplane. This
system is housed within the chassis footprint of a Cisco 7513 router. The dual independent router design
effectively doubles the system bandwidth that exists in the Cisco 7513 router.
Network interfaces reside on interface processors that provide a direct connection between the two
independent dual CyBuses located on the backplane of the Cisco 7576 router and your external
networks. The two independent dual CyBuses facilitate the configuration of two independent routers on
a single backplane.