CHAPTER
9-1
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-10
9
Using the Management Ethernet Interface
This chapter covers the following topics:
• Gigabit Ethernet Management Interface Overview, page 9-1
• Gigabit Ethernet Port Numbering, page 9-2
• Gigabit Ethernet Port Numbering, page 9-2
• IP Address Handling in ROMmon and the Management Ethernet Port, page 9-2
• Gigabit Ethernet Management Interface VRF, page 9-2
• Common Ethernet Management Tasks, page 9-3
Gigabit Ethernet Management Interface Overview
The Cisco ASR 1000 Series Routers have one Gigabit Ethernet Management Ethernet interface on each
Route Processor.
The purpose of this interface is to allow users to perform management tasks on the router; it is basically
an interface that should not and often cannot forward network traffic but can otherwise access the router,
often via Telnet and SSH, and perform most management tasks on the router. The interface is most useful
before a router has begun routing, or in troubleshooting scenarios when the SPA interfaces are inactive.
The following aspects of the Management Ethernet interface should be noted:
• Each RP has a Management Ethernet interface, but only the active RP has an accessible Management
Ethernet interface (the standby RP can be accessed using the console port, however).
• IPv4, IPv6, and ARP are the only routed protocols supported for the interface.
• The interface provides a method of access to the router even if the SPA interfaces or the IOS
processes are down.
• The Management Ethernet interface is part of its own VRF. This is discussed in more detail in the
“Gigabit Ethernet Management Interface VRF” section on page 9-2.
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