Cisco IOS Software for the Cisco Catalyst 4500 Series Supervisor Engines S45IPBK9-12244SG= User Manual
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Product codes
S45IPBK9-12244SG=
Product Bulletin
© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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HTTPS: HTTP with Secure Sockets Layer(SSL) 3.0
HTTPS infrastructure for Cisco IOS Software applications.
Embedded Syslog Manager (ESM)
The ESM provides enhanced system message logging (syslog) services for Cisco IOS Software,
including device-level syslog message filtering, and reliable delivery of syslog messages to the
syslog message receiving server. The ESM includes a programmable framework that allows
customization of messages and delivery options using Tool Command Language (TCL) scripts.
Configuration Utilities
Configuration Replace and Rollback, Including Configuration Versioning (Archive) and Timed
Rollback
Provides mechanism to roll back configuration changes or replace the current running
configuration with any stored configuration. Rollback capability is also a prerequisite for
transactional handling of configuration changes by the Cisco IOS Software programmatic interface.
Configuration Change Notification and Logging
Provides a way to track configuration changes made by users, on a per-session and per- user
basis. System logging notifications can be enabled [(config-archive-log-config) # logging enable]
for when changes are made, and the log files (record of changes) can be sent to a remote syslog
server [(config-archive-log- config)# notify syslog].
Contextual Configuration Diff Utility
This utility will allow users to view the differences between any two Cisco IOS Software
configuration files, located locally or remotely, including the startup or running configs. The output
includes the sub mode information to provide the context for the command differences.
Cisco IOS Software Scripting with TCL
This feature provides the ability to run TCL Version 8.3.4 commands from the Cisco IOS Software
command-line interface (CLI). TCL 8.3.4 provides scripting capability in Cisco IOS Software. TCL
is used by Voice's Interactive Voice Response, Test Tools, Embedded Event Manager, and
Embedded Syslog manager, and is also exposed via TCL.sh at the Cisco IOS Software CLI.
MIBs
CEF-MIB
Support in Cisco IOS Software for managing Cisco Express Forwarding using SNMP. Introduces
the Cisco CEF-MIB, CEF-TC-MIB , and CEF-PROVISION-MIB.
URPF-MIB (Cisco Catalyst 4500 Supervisor Engine 6-E Only)
The IP Unicast Reverse Path Forwarding (uRPF) feature is used to avert security attacks. uRPF is
a security feature that verifies the validity of the source IP of an incoming packet. When enabled
on an interface, uRPF drops packets received on an interface if the source IP is unknown in the
routing table or if it is a known bad source address. This is done to detect and remedy denial-of-
service (DoS)attacks by making some attempt to detect problems with the packets. This (uRPF)
feature is operationally challenging to deploy without some automated monitoring capability.
Cisco IOS Software supports monitoring IP uRPF using SNMP. Also includes an SNMP notification
for when URPF drop rate for IPv4 packets on the interface exceeds the drop-rate threshold.
IP Tunnel MIB per RFC 4087