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52 VIP-FE-TX/4E Installation and Configuration
VIP Port Adapter Functions
Figure 22 shows some of the slot port adapter and interface ports of a sample Cisco 7505 system.
For example, on a FE-TX/4E VIP in slot 3, the address of the first Fast Ethernet port adapter is 3/0/0
(chassis slot 3, port adapter slot 0, and interface port 0—see the section “Selecting Chassis Slot, Port
Adapter, and Fast Ethernet Interface Port Numbers” on page 38 for the Fast Ethernet numbering
scheme), and the addresses for the Ethernet 10BASE-T interface ports on the second port adapter
(which is a 4E) are 3/1/0 through 3/1/3 (chassis slot 3, port adapter slot 1, and interface ports 0
through 3).
The first port adapter slot number is always 0. The second port adapter slot number is always 1. The
individual interface port numbers always begin with 0. The number of additional ports depends on
the number of ports on a port adapter. For example, the four 10BaseT interface ports on a 4E port
adapter in the second port adapter slot in chassis slot 3, would have the following addresses: 3/1/0,
3/1/1, 3/1/2, and 3/1/3. (See Figure 31.)
Note If you remove the 4E-equipped VIP from slot 3 and install it in slot 2, the addresses of those
same 10BASE-T ports become 2/1/0 through 2/1/3.
Figure 31 10BASE-T Interface Port Number Example (Cisco 7505 Shown)
Note VIP configurations using only one 4E port adapter, and a port adapter blank, or two 4E port
adapters, are currently not supported.
You can identify interface ports by physically checking the slot/port adapter/interface 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 a specific interface, use the show interfaces command with the
interface type and port address in the format show interfaces [type slot/port adapter/port].
H4722
Slot 0
Slot 1
Slot 2
Slot 3
Interface
processor
slots
EJECT
SLOT 0
SLOT 1
NORMAL
CPU HALT
RESET
CONSOLE
ROUTE SWITCH PROCESSOR
MII
LINK
RJ-45
0
0
1
2
3
LINK
0
1
2
3
FAST ETHERNET
ETHERNET 10BT
4E port adapter
(port numbers 3/1/0, 3/1/1,
3/1/2, 3/1/3, from left to right)