Cisco Catalyst 4500 Series, Руководство по настройке программного обеспечения

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 1 Product Overview
Management Features
Cisco Network Assistant
Cisco Network Assistant manages standalone devices, clusters of devices, or federations of devices from
anywhere in your intranet. Using its graphical user interface, you can perform multiple configuration
tasks without having to remember command-line interface commands. Embedded CiscoView is a device
management application that can be embedded on the switch flash and provides dynamic status,
monitoring, and configuration information for your switch.
For more information on Cisco Network Assistant, see Chapter 16, “Configuring the Catalyst 4500
Series Switch with Cisco Network Assistant.”
Dynamic Host Control Protocol
The Catalyst 4500 series switch uses DHCP in the following ways:
•
Dynamic Host Control Protocol server—The Cisco IOS DHCP server feature is a full DHCP server
implementation that assigns and manages IP addresses from specified address pools within the
router to DHCP clients. If the Cisco IOS DHCP server cannot satisfy a DHCP request from its own
database, it can forward the request to one or more secondary DHCP servers defined by the network
administrator.
• Dynamic Host Control Protocol autoconfiguration—With this feature your switch (the DHCP client)
is automatically configured at startup with IP address information and a configuration file.
For DHCP server configuration information, refer to the chapter, “Configuring DHCP,” in the Cisco
IOS IP and IP Routing Configuration Guide at the following URL:
http://www.cisco.com/en/US/docs/ios/ipaddr/configuration/guide/iad_dhcp_rdmp_ps6350_TSD_P
roducts_Configuration_Guide_Chapter.html
Easy Virtual Network
Easy Virtual Network (EVN) is an IP-based virtualization technology that provides end-to-end
virtualization of the network. You can use a single IP infrastructure to provide separate virtual networks
whose traffic paths remain isolated from each other. Configure Easy Virtual Network to configure two
or more virtual IP networks.
For details on EVN, refer to the following URLs:
http://www.cisco.com/en/US/docs/ios-xml/ios/evn/configuration/xe-3s/evn-xe-3s-book.html
The following restrictions/feature interactions apply:
•
Multicast
When multicast traffic traverses VRFs, where source and receivers are in different VRFs, mulitcast
counters will not increment on receivers' VRFs.
•
NetFlow
When configured on an EVN trunk interface, NetFlow captures traffic information for all VRFs but
does not preserve the VRF information.
•
SPAN
– When an EVN trunk interface is configured as a SPAN source, traffic belonging to all VRFs
carried by the EVN trunk is spanned. By default, the VNET tag is not preserved. To preserve it,
configure SPAN destination with the
encapsulation dot1q option.