Cisco 3845 Quick Start Guide - Page 29

Verify the Hardware Configuration, 7 Port Numbering, Built-In Ports, Network Module Ports - modules

Page 29 highlights

Verify the Hardware Configuration To display and verify the hardware features, enter the following commands: • show version-Displays the system hardware version; the installed software version; the names and sources of configuration files; the boot images; and the amount of installed DRAM, NVRAM, and flash memory. • show diag-Lists and displays diagnostic information about the installed controllers, interface processors, and port adapters. Typical examples are network modules, interface cards (VICs, WICs, HWICs, and AIMs) and PVDMs. 7 Port Numbering Each built-in networking port on a Cisco 3800 series router, and each port on a network module or interface card, is identified in Cisco IOS software by an interface type and a number or series of numbers separated by forward slashes (/). Port numbers for Cisco 3800 series routers follow the rules in this section. Note The interface numbering for Cisco 3800 series routers is different from the numbering in Cisco 3700 series routers. Built-In Ports The Gigabit Ethernet ports built into the router's rear panel are numbered 0/0 and 0/1. These numbers are used with the interface-type keyword gigabitethernet to identify these ports in Cisco IOS software commands-gigabitethernet 0/0 and gigabitethernet 0/1. Network Module Ports Ports on network modules inserted into a router slot are numbered slot/port, where slot is the slot number and port is the port number. The Cisco 3825 router has two network module slots. The lower slot is numbered 1; the upper slot is numbered 2. The Cisco 3845 router has four slots: 1 at lower right, 2 at lower left, 3 at upper right, and 4 at upper left. Note Double-wide or extended double-wide network modules use slot numbers 2 and 4. Ports in a network module are normally numbered from right to left and bottom to top, starting at 0. See the Cisco Network Modules Hardware Installation Guide for more information. Table 6 summarizes the interface numbering. Table 6 Port Numbering Port Location Port Numbering Scheme Examples1 Built into the chassis rear panel In an interface card plugged directly into a chassis slot In an interface card plugged into a slot in a network module Interface-type 0 / port Interface-type 0 / interface-card-slot2 / port Interface-type network-module-slot3 / interface-card-slot / port interface gigabitethernet 0/1 interface serial 0/1/1 voice-port 1/1/0 Built into a network module Interface-type network-module-slot / port interface gigabitethernet 1/0 1. The interfaces listed are examples only; other possible interface types are not listed. 2. Interface card slot numbers for double-width interface-card slots are 1 and 3 only. 3. Network module slot numbers are 1 and 2 for the Cisco 3825 router; 1, 2, 3, and 4 for the Cisco 3845 router. 29

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Verify the Hardware Configuration
To display and verify the hardware features, enter the following commands:
show version
—Displays the system hardware version; the installed software version; the names and sources of configuration
files; the boot images; and the amount of installed DRAM, NVRAM, and flash memory.
show diag
—Lists and displays diagnostic information about the installed controllers, interface processors, and port
adapters. Typical examples are network modules, interface cards (VICs, WICs, HWICs, and AIMs) and PVDMs.
7
Port Numbering
Each built-in networking port on a Cisco 3800 series router, and each port on a network module or interface card, is identified
in Cisco IOS software by an interface type and a number or series of numbers separated by forward slashes (/). Port numbers
for Cisco 3800 series routers follow the rules in this section.
Note
The interface numbering for Cisco 3800 series routers is different from the numbering in Cisco 3700 series routers.
Built-In Ports
The Gigabit Ethernet ports built into the router’s rear panel are numbered 0/0 and 0/1. These numbers are used with the
interface-type keyword
gigabitethernet
to identify these ports in Cisco IOS software commands—
gigabitethernet 0/0
and
gigabitethernet 0/1
.
Network Module Ports
Ports on network modules inserted into a router slot are numbered
slot/port
, where slot is the
slot
number and
port
is the port
number.
The Cisco 3825 router has two network module slots. The lower slot is numbered 1; the upper slot is numbered 2. The
Cisco 3845 router has four slots: 1 at lower right, 2 at lower left, 3 at upper right, and 4 at upper left.
Note
Double-wide or extended double-wide network modules use slot numbers 2 and 4.
Ports in a network module are normally numbered from right to left and bottom to top, starting at 0. See the
Cisco Network
Modules Hardware Installation Guide
for more information.
Table 6 summarizes the interface numbering.
Table 6
Port Numbering
Port Location
Port Numbering Scheme
Examples
1
1.
The interfaces listed are examples only; other possible interface types are not listed.
Built into the chassis rear panel
Interface-type
0
/
port
interface gigabitethernet 0/1
In an interface card plugged directly
into a chassis slot
Interface-type
0
/
interface-card-slot
2
/
port
2.
Interface card slot numbers for double-width interface-card slots are 1 and 3 only.
interface serial 0/1/1
In an interface card plugged into a slot
in a network module
Interface-type
network-module-slot
3
/
interface-card-slot
/
port
3.
Network module slot numbers are 1 and 2 for the Cisco 3825 router; 1, 2, 3, and 4 for the Cisco 3845 router.
voice-port 1/1/0
Built into a network module
Interface-type
network-module-slot
/
port
interface gigabitethernet 1/0