Cisco S49ES-12231SG= Manuel D’Utilisation
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sticky port security further extends the sticky port security to the voice-over-IP deployment. It locks a port and blocks access from a station with a
MAC address different from the IP phone and the workstation behind the IP phone.
Virtual Router Redundancy Protocol
Virtual Router Redundancy Protocol (VRRP) is a standard-based first-hop redundancy protocol. With VRRP, a group of routers functions as one
virtual router by sharing one virtual IP address and one virtual MAC address. The master router performs packet forwarding, while the backup
routers stay idle. VRRP is typically used in a multivendor first-hop gateway redundancy deployment.
Secure Copy Protocol
Secure Copy Protocol (SCP) provides a secure and authenticated way to transfer files between a switch and a network management station. It uses
the Secure Shell (SSH) Protocol as a transport mechanism for file copy operations. SCP is typically used for secure transfer of switch configurations
and images. Both client side and server side of SCP are supported.
CISCO IOS SOFTWARE PACKAGING FOR THE CISCO CATALYST 4900 SERIES
A new Cisco IOS Software package for the Cisco Catalyst 4900 Series switches was introduced in Cisco IOS Software Release 12.2(25)SG. It is a
new foundation for features and functionality and provides consistency across all Cisco Catalyst switches. The new Cisco IOS Software release train
is designated as 12.2SG.
Prior Cisco IOS Software images for the Cisco Catalyst 4900 Series, formally known as “Basic Layer 3” and “Enhanced Layer 3” images, now map
to “IP Base” and “Enterprise Services,” respectively. Border Gateway Protocol (BGP) is now included in the “Enterprise Services” image. Unless
otherwise specified, all currently shipping Cisco Catalyst 4900 software features based on Cisco IOS Software are supported in the IP Base image
of Release 12.2(31)SG, with a few exceptions:
The IP Base image does not support any enhanced routing related features (including BGP, EIGRP, OSPF, Intermediate System–to–Intermediate
System (IS-IS) Protocol, Internetwork Packet Exchange [IPX] Protocol, AppleTalk, VRF-lite, and PBR).
The IP Base image supports EIGRP-Stub for limited routing on Cisco Catalyst 4900 Series switches. For more information about EIGRP-Stub
functionality, go to
http://www.cisco.com/en/US/technologies/tk648/tk365/technologies_white_paper0900aecd8023df6f.shtml
The Enterprise Services image supports all Cisco Catalyst 4900 Series software features based on Cisco IOS Software, including enhanced routing.
BGP capability is included in the Enterprises Services package. Table 1 shows a more detailed description of the feature differences between the IP
Base and Enterprise Services (ES) images as they relate to the Cisco Catalyst 4900 Series switches.
Table 1.
Feature Comparison for Cisco IOS Software Release 12.2(31)SG IP Base and Enterprise Services
Feature
IP Base Image
Enterprise Services Image
NACv2.0
Yes
Yes
RIP and Static Route
Yes
Yes
NSF-aware
No
Yes
EIGRP
No
Yes
EIGRP-Stub
Yes
Yes
NSF-aware EIGRP-stub
Yes
Yes
OSPF/IS-IS
No
Yes
BGP
No
Yes