Specifications

26 Ethernet Interface Processor (EIP) Installation and Configuration
Configuring the Interfaces
Interface ports maintain the same address regardless of whether other interface processors are
installed or removed. However, when you move an interface processor to a different slot, the first
number in the address changes to reflect the new slot number. For example, on a six-port EIP in slot
1, the address of the first port (on the left) is 1/0 and that of the right-most port is 1/5. If you remove
the EIP from slot 1 and install it in slot 2, the addresses of those same ports become 2/0 and 2/5.
Figure 15 shows some of the port numbers of a sample system.
Figure 15 Interface Port Address Examples
Note Although the processor slots in the Cisco 7000, Cisco 7507, and Cisco 7513 are vertically
oriented, and those in the Cisco 7010 and Cisco 7505 are horizontally oriented, all models use the
same slot and port addressing method. (See Figure 6, Figure 7, Figure 8, Figure 9, or Figure 10,
depending on your chassis type.)
Interface slots are numbered 0 to 2 from the bottom slot up (in the orientation shown in Figure 15).
The port numbers always begin at 0 and are numbered from left to right. The number of additional
ports (1, 2, and so on) depends on the number of ports available on an interface. FDDI interfaces are
always n/0, because each FIP supports one interface. Ethernet interfaces can be numbered from 0
through 5 because EIPs support up to six Ethernet ports.
You can identify interface ports by physically checking the slot/port location on the back of the
router or by using software commands to display information about a specific interface or all
interfaces in the router. To display information about every interface, use the show interfaces
command (interfaces is plural) without variables. To display information about a specific interface,
use the show interface command (interface is singular) with the interface type and port address in
the format show interface [type slot/port]. If you abbreviate the command (sho int) and do not
include variables, the system interprets the command as show interfaces and displays the status of
all interfaces.
H2041
Interface processor slot 0
Interface processor slot 1
Interface processor slot 2
SP slot
RP slot
2/0
1/0
0/2 0/5