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Cisco 7200 VXR Installation and Configuration Guide
OL-5013-09
Chapter 1 Cisco 7200 VXR Product Overview
Functional Overview
Figure 1-32 Port Adapter Slot Numbering—Cisco 7206VXR
The Media Access Control (MAC) address or hardware address is a standardized data link layer address
that is required for certain network interface types. These addresses are not used by other devices in the
network; they are specific and unique to each port. The Cisco
7200 VXR routers use a specific method
to assign and control the MAC addresses of its port adapters. For a description of the MAC
address, see
the
“MAC Address” section on page 1-57.
Port adapter slots maintain the same slot number regardless of whether other port adapters are installed
or removed. However, when you move a port adapter to a different slot, the port adapter slot number
changes to reflect the new slot number.
You can identify port adapter slots by using software commands. To display information about all port
adapter slots, use the show interfaces command. To display information about a specific port adapter
slot, use the show interfaces command with the port adapter type and slot number in the format
show
interfaces port-adapter-type slot-number/port-number. If you abbreviate the command (sh int)
and do not specify port adapter type and slot number (or arguments), the system interprets the command
as show interfaces and displays the status of all port adapters and ports.
To identify port adapter slots and the Port Adapter Jacket Card and to obtain information about the port
adapters, use the show diag command.
The following example shows how the show interfaces command, used without arguments, displays
status information (including the physical port adapter number) for each port adapter in a
Cisco
7206VXR.
In the following example, most of the status information for each interface is omitted.
1 Blank port adapter 5 Port adapter slot 5
2 Port adapter slot 6 6 Port adapter slot 3
3 Port adapter slot 4 7 Port adapter slot 1
4 Port adapter slot 2 8 Port adapter slot 0 (Reserved for the Fast
Ethernet port on the I/O controller. With the
NPE-G1 or NPE-G2 and the Port Adapter
Jacket Card installed, the slot becomes port
adapter slot 7.)
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