Cisco 3700 series Посібник з монтажу - Сторінка 7

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Cisco 3700 series Посібник з монтажу
Chapter 1
Overview of Cisco 3700 Series Routers
Cisco 3745 Interfaces
Each individual interface (port) on a Cisco 3745 router is identified by number as described in the
following sections.
WAN and LAN Interface Numbering
The Cisco 3745 router chassis contains the following WAN and LAN interface types:
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The numbering format is interface-type slot-number/interface-number. Two examples are:
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The slot numbers are as follows:
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If double-wide network modules are installed, the network module slots are numbered as follows:
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Interface (port) numbers begin at 0 for each interface type, and continue from right to left and from
bottom to top.
Figure 1-4
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The slot number for all WIC interfaces is always 0. (The W0, W1, and W2 slot designations are for
physical slot identification only.) Interfaces in the WICs are numbered from right to left, starting with
0/0 for each interface type, regardless of which physical slot the WICs are installed in. Some examples
are:
If physical slot W0 is empty and physical slot W1 contains a 1-port serial WIC, the serial interface in
the WIC is numbered Serial 0/0.
If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port serial WIC, the serial interfaces in
physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the serial interface in physical slot W1 is
numbered Serial 0/2.
If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port BRI WIC, the serial interfaces in
physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the BRI interface in physical slot W1 is
numbered BRI 0/0.
OL-2180-08
Two built-in FastEthernet LAN interfaces
Three slots in which you can install WAN or voice interface cards
Four network module slots
FastEthernet 0/0
Serial 1/2
0 for all built-in interfaces
0 for all WIC interfaces
1 for the lower-right network module slot
2 for the lower-left network module slot
3 for the upper-right network module slot
4 for the upper-left network module slot
2 for the lower double-wide slot
4 for the upper double-wide slot
shows the rear panel of the Cisco 3745 with:
A WIC in each of the three WAN interface card slots
A single-wide network module in each of the four network module slots
Two AC power supplies
Cisco 3700 Series Routers Hardware Installation Guide
Interface Numbering
1-7