Cisco Systems 1000 Series Manual De Usuario

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Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-15
Chapter 10      Using the Management Ethernet Interface
  Gigabit Ethernet Management Interface VRF
Gigabit Ethernet Management Interface VRF
The Gigabit Ethernet Management interface is automatically part of its own VRF. This VRF, which is 
named “Mgmt-intf,” is automatically configured on the Cisco ASR 1000 Series Router and is dedicated 
to the Management Ethernet interface; no other interfaces can join this VRF. Therefore, this VRF does 
not participate in the MPLS VPN VRF or any other network-wide VRF.
Placing the management ethernet interface in its own VRF has the following effects on the Management 
Ethernet interface:
Many features must be configured or used inside the VRF, so the CLI may be different for certain 
Management Ethernet functions on the Cisco ASR 1000 Series Routers than on Management 
Ethernet interfaces on other routers.
Prevents transit traffic from traversing the router. Because all of the SPA interfaces and the 
Management Ethernet interface are automatically in different VRFs, no transit traffic can enter the 
Management Ethernet interface and leave a SPA interface, or vice versa.
Improved security of the interface. Because the Mgmt-intf VRF has its own routing table as a result 
of being in its own VRF, routes can only be added to the routing table of the Management Ethernet 
interface if explicitly entered by a user.
The Management Ethernet interface VRF supports both IPv4 and IPv6 address families.
Common Ethernet Management Tasks
Because users can perform most tasks on a router through the Management Ethernet interface, many 
tasks can be done by accessing the router through the Management Ethernet interface.
This section documents tasks that might be common or slightly tricky on the Cisco ASR 1000 Series 
Routers. It is not intended as a comprehensive list of all tasks that can be done using the Management 
Ethernet interface.
This section covers the following processes: