Specifications

33
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
New and Changed Information
Per-VC Queueing
Platforms: Cisco 12000 series
The per-virtual circuit (VC) queueing enhancements for the Quad OC-3c/STM-1c ATM line card
provide additional control of traffic management on the line card. Within limits, you can adjust queuing
priorities for each VC defined on a line card interface. This feature lessens traffic congestion and
improves quality of service (QoS).
Two-Port Multichannel DS1/PRI and Multichannel E1/PRI Port Adapters
Platforms: Cisco 12000 series
Two-port versions of the Multichannel DS1/PRI and Multichannel E1/PRI port adapters are now
available. See the following documents for further information:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/4815ds1p/index.htm
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/5083e1p/index.htm
New Features in Cisco IOS Release 12.0(6)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.
1OC-12/STM-4 SRP Line Card
Platforms: Cisco 12000 series
The 1OC-12/STM-4 spatial reuse protocol (SRP) line card equips the Cisco series 12000 Gigabit
Switch Router with a total of two OC-12c, fiber-optic SC duplex ports. The line card provides two
duplex SC connections for either the single-mode or multimode version. The Service Processing
Element (SPE) payload is concatenated, which increases efficiency by eliminating the need to partition
the bandwidth. The 1OC-12/STM-4 SRP line card is slot independent. See the following document for
further information:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis12012/bfrcfig/5929srp.htm
6DS3-SMB Line Card
Platforms: Cisco 12000 series
The 6DS3-SMB line card consist of high-density DS3 service through six T3 interfaces.
The 6-port line card is a partially depopulated version of the 12-port line card. The 6-port line card
consists of a total of 12 connectors. A single port consists of one coaxial connector for receiving (Rx)
and one coaxial connector for sending (Tx). The ports on the 6-port line card are numbered 0 to 5.
The 6DS3-SMB line card supports serial encapsulation protocols, Gigabit Switch Router (GSR)
standard line card packet switching, and DS3 support. See the following document for further
information:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis12012/bfrcfig/6587ds3.htm