Specifications

38
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
New and Changed Information
There are bays for up to two AC-input or DC-input power supplies. The Cisco 7576 router will operate
with one power supply. Although a second power supply is not required, a second power supply allows
load sharing and increased system availability. See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis7576/index.htm
Command Line Interface String Search
Platforms: Cisco 7200 series, Cisco 7500/RSP series, Cisco 12000 series
The command line interface (CLI) string search feature allows you to search or filter the output of any
show or more command, which is useful for sorting through large amounts of output, or if you want to
exclude output that you do not need to see. CLI string search also allows for searching and filtering at
--More-- paging prompts.
With the search function, you can begin unfiltered output at the first line that contains a regular
expression you specify. You can specify a maximum of one filter per command to either include or
exclude output lines that contain the specified regular expression.
A regular expression is any word, phrase, number, and the like that appears in show or more command
output.
Frame Relay Enhancements for K2 Scalability
Platforms: Cisco 7200 series, Cisco 7500/RSP series
The logging event command has been enhanced to enable or disable logging data-link connection
identifier (DLCI) Change and subinterface UPDOWN console messages on Cisco 7200 and Cisco 7500
series routers. The logging event dlci-status-change and logging event subif-link-status commands
are used to enable logging.
The display on the show frame-relay pvc command has been enhanced on Cisco 7200 and Cisco 7500
series routers to include a table showing the number of permanent virutal connections (PVCs) in their
various states.
Gigabit Ethernet Interface Processor
Platforms: Cisco 7500/RSP series
The Gigabit Ethernet Interface Processor (GEIP) is a single-port fixed configuration interface processor
that, when combined with the appropriate fiber optic cable, provides one 1000-Mbps Gigabit Ethernet
interface that complies with IEEE 802.032 standards.
The Gigabit Ethernet interface operates in full-duplex mode at 1000 Mbps in each direction: transmit
(TX) and receive (RX).
The GEIP is available on all Cisco 7500 series routers and Cisco 7000 series routers with the 7000
Series Route Switch Processor (RSP7000) and 7000 Series Chassis Interface (RSP7000CI).
An increased maximum Ethernet packet size of 1500 takes advantage of increased bandwidth and the
full-duplex point-to-point link.
An interface command MTU (maximum transmission unit) allows users to specify an MTU size up to
16K (maximum supported by FX1000). The minimum allowable MTU size is 1500 bytes.
If the interface is configured with a fall-back option, the other port will be reconfigured to support a
large packet when a switchover occurs. See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis7000/7000cfig/5350geip.htm