Cisco交换机配置入门2--帮助与注意事项
Cisco交换机配置入门
输入"S?"，就可以获得以S开头的所有字母。
2、命令帮助
如果对某个命令的用法不熟悉时，也可以使用“?”来获取其详细的帮助，如想对show的命令作一个具体的了解，可以使用：“show ?”
3、显示完整的命令
再一个部分命令的后面直接加上“?”就可以显示其输出结果，如例子：
AITG_FrontekCoreSW#show interface ?
Async Async interface
BVI Bridge-Group Virtual Interface
CTunnel CTunnel interface
Dialer Dialer interface
Filter Filter interface
Filtergroup Filter Group interface
GigabitEthernet GigabitEthernet IEEE 802.3z
Loopback Loopback interface
Null Null interface
Port-channel Ethernet Channel of interfaces
Portgroup Portgroup interface
Pos-channel POS Channel of interfaces
Tunnel Tunnel interface
Vif PGM Multicast Host interface
Virtual-Template Virtual Template interface
Virtual-TokenRing Virtual TokenRing
Vlan Catalyst Vlans
accounting Show interface accounting
capabilities Show interface capabilities information
counters Show interface counters
crb Show interface routing/bridging info
dampening Show interface dampening info
debounce Show interface debounce time info
description Show interface description
etherchannel Show interface etherchannel information
fair-queue Show interface Weighted Fair Queueing (WFQ) info
fcpa Fiber Channel
flowcontrol Show interface flowcontrol information
irb Show interface routing/bridging info
mac-accounting Show interface MAC accounting info
mpls-exp Show interface MPLS experimental accounting info
mtu Show interface mtu
precedence Show interface precedence accounting info
private-vlan Show interface private vlan information
pruning Show interface trunk VTP pruning information
random-detect Show interface Weighted Random Early Detection (WRED) info
rate-limit Show interface rate-limit info
stats Show interface packets & octets, in & out, by switching
path
status Show interface line status
summary Show interface summary
switchport Show interface switchport information
transceiver Show interface transceiver
trunk Show interface trunk information
vlan Show interface vlan information
| Output modifiers
<cr>
以上是帮助选项，我们再来看看其他的快捷方式：
1、使用TAB键
当输入命令的一部分字母时，按下TAB键，系统就可以自动输入此命令的剩余字母，如：
AITG_FrontekCoreSW#sh －－－TAB键
AITG_FrontekCoreSW#show
2、命令缩写
有些命令没有必要将所有的字母输入完全，输入一部分就可以了，如：
AITG_FrontekCoreSW#sh int ＝show interface
Vlan1 is up, line protocol is up
Hardware is EtherSVI, address is 0019.aa89.dd40 (bia 0019.aa89.dd40)
.........
建议大家最好将命令记全。
机型：Cisco 3750
现在我们来继续讲解关于输入Cisco命令时注意的一些事项与帮助
1、关于帮助
直接使用“?”，可以获得相应模式下的所支持的命令列表，如果再问号前面加上一些命令的开头的字母，就可以获得一些以此字母开头的命令，如：
AITG_FrontekCoreSW#s?
*s=show send session set setup
show systat
直接使用“?”，可以获得相应模式下的所支持的命令列表，如果再问号前面加上一些命令的开头的字母，就可以获得一些以此字母开头的命令，如：
AITG_FrontekCoreSW#s?
*s=show send session set setup
show systat
输入"S?"，就可以获得以S开头的所有字母。
2、命令帮助
如果对某个命令的用法不熟悉时，也可以使用“?”来获取其详细的帮助，如想对show的命令作一个具体的了解，可以使用：“show ?”
AITG_FrontekCoreSW#show ?
aaa Show AAA values
access-lists List access lists
accounting Accounting data for active sessions
adjacency Adjacent nodes
aliases Display alias commands
archive Archive functions
arp ARP table
auto Show Automation Template
auto Show Automation Template
boot show boot attributes
buffers Buffer pool statistics
cable-diagnostics Show Cable Diagnostics Results
cca CCA information
cdp CDP information
cef CEF address family independent status
class-map Show QoS Class Map
clock Display the system clock
cluster Cluster information
cns CNS agents
configuration Configuration details
controllers Interface controller status
dampening Display dampening information
debugging State of each debugging option
derived-config Derived operating configuration
dhcp Dynamic Host Configuration Protocol status
diagnostic Show command for diagnostic
dot1q-tunnel Display dot1q tunnel ports
dot1x Dot1x information
dtp DTP information
eap Shows EAP registration/session information
env Environmental facilities
eou EAPoUDP
errdisable Error disable
etherchannel EtherChannel information
exception exception informations
file Show filesystem information
flash1: display information about flash1: file system
flash: display information about flash: file system
flowcontrol show flow control information
history Display the session command history
hosts IP domain-name, lookup style, nameservers, and host table
html HTML helper commands
idb List of Hardware Interface Descriptor Blocks
identity Identity profiles and policies
idprom show IDPROMs for interfaces
interfaces Interface status and configuration
inventory Show the physical inventory
ip IP information
ipc Interprocess communications commands
ipv6 IPv6 information
key Key information
kron Kron Subsystem
l2protocol-tunnel Display L2PT status and configurations
lacp Port channel information
line TTY line information
link Show Link
location Display the system location
logging Show the contents of logging buffers
login Display Secure Login Configurations and State
mac MAC configuration
mac-address-table MAC forwarding table
memory Memory statistics
mls mls global commands
monitor Monitoring different system events
mvr Show mvr global parameters
ntp Network time protocol
pagp Port channel information
parser Show parser commands
platform platform specific show commands
pm Show Port Manager commands
policy-manager Policy Manager
policy-map Show QoS Policy Map
port-security Show secure port information
post Show the results of the system POST
power Switch Power
privilege Show current privilege level
processes Active process statistics
protocols Active network routing protocols
queue Show queue contents
queueing Show queueing configuration
radius Shows radius information
region Region Manager Status
registry Function registry information
reload Scheduled reload information
resource Resource group statistics
rhosts Remote-host+user equivalences
rmon rmon statistics
route-map route-map information
rtr Service Assurance Agent (SAA)
running-config Current operating configuration
scp SCP commands
sdm Switch database management
service-module Service Module commands
sessions Information about Telnet connections
setup Show express setup settings
snmp snmp statistics
spanning-tree Spanning tree topology
stacks Process stack utilization
standby Hot Standby Router Protocol (HSRP) information
startup-config Contents of startup configuration
storm-control Show storm control configuration
subsys Show subsystem information
switch show information about the stack ring
system Show the system configuration
table-map Show Table Map
tacacs Shows tacacs+ server statistics
tcp Status of TCP connections
tech-support Show system information for Tech-Support
template Template information
terminal Display terminal configuration parameters
time-range Time range
track Tracking information
udld UDLD information
users Display information about terminal lines
version System hardware and software status
vlan VTP VLAN status
vmps VMPS version information
vtp VTP information
xdr Show details about XDR
aaa Show AAA values
access-lists List access lists
accounting Accounting data for active sessions
adjacency Adjacent nodes
aliases Display alias commands
archive Archive functions
arp ARP table
auto Show Automation Template
auto Show Automation Template
boot show boot attributes
buffers Buffer pool statistics
cable-diagnostics Show Cable Diagnostics Results
cca CCA information
cdp CDP information
cef CEF address family independent status
class-map Show QoS Class Map
clock Display the system clock
cluster Cluster information
cns CNS agents
configuration Configuration details
controllers Interface controller status
dampening Display dampening information
debugging State of each debugging option
derived-config Derived operating configuration
dhcp Dynamic Host Configuration Protocol status
diagnostic Show command for diagnostic
dot1q-tunnel Display dot1q tunnel ports
dot1x Dot1x information
dtp DTP information
eap Shows EAP registration/session information
env Environmental facilities
eou EAPoUDP
errdisable Error disable
etherchannel EtherChannel information
exception exception informations
file Show filesystem information
flash1: display information about flash1: file system
flash: display information about flash: file system
flowcontrol show flow control information
history Display the session command history
hosts IP domain-name, lookup style, nameservers, and host table
html HTML helper commands
idb List of Hardware Interface Descriptor Blocks
identity Identity profiles and policies
idprom show IDPROMs for interfaces
interfaces Interface status and configuration
inventory Show the physical inventory
ip IP information
ipc Interprocess communications commands
ipv6 IPv6 information
key Key information
kron Kron Subsystem
l2protocol-tunnel Display L2PT status and configurations
lacp Port channel information
line TTY line information
link Show Link
location Display the system location
logging Show the contents of logging buffers
login Display Secure Login Configurations and State
mac MAC configuration
mac-address-table MAC forwarding table
memory Memory statistics
mls mls global commands
monitor Monitoring different system events
mvr Show mvr global parameters
ntp Network time protocol
pagp Port channel information
parser Show parser commands
platform platform specific show commands
pm Show Port Manager commands
policy-manager Policy Manager
policy-map Show QoS Policy Map
port-security Show secure port information
post Show the results of the system POST
power Switch Power
privilege Show current privilege level
processes Active process statistics
protocols Active network routing protocols
queue Show queue contents
queueing Show queueing configuration
radius Shows radius information
region Region Manager Status
registry Function registry information
reload Scheduled reload information
resource Resource group statistics
rhosts Remote-host+user equivalences
rmon rmon statistics
route-map route-map information
rtr Service Assurance Agent (SAA)
running-config Current operating configuration
scp SCP commands
sdm Switch database management
service-module Service Module commands
sessions Information about Telnet connections
setup Show express setup settings
snmp snmp statistics
spanning-tree Spanning tree topology
stacks Process stack utilization
standby Hot Standby Router Protocol (HSRP) information
startup-config Contents of startup configuration
storm-control Show storm control configuration
subsys Show subsystem information
switch show information about the stack ring
system Show the system configuration
table-map Show Table Map
tacacs Shows tacacs+ server statistics
tcp Status of TCP connections
tech-support Show system information for Tech-Support
template Template information
terminal Display terminal configuration parameters
time-range Time range
track Tracking information
udld UDLD information
users Display information about terminal lines
version System hardware and software status
vlan VTP VLAN status
vmps VMPS version information
vtp VTP information
xdr Show details about XDR
3、显示完整的命令
再一个部分命令的后面直接加上“?”就可以显示其输出结果，如例子：
AITG_FrontekCoreSW#show interface ?
Async Async interface
BVI Bridge-Group Virtual Interface
CTunnel CTunnel interface
Dialer Dialer interface
Filter Filter interface
Filtergroup Filter Group interface
GigabitEthernet GigabitEthernet IEEE 802.3z
Loopback Loopback interface
Null Null interface
Port-channel Ethernet Channel of interfaces
Portgroup Portgroup interface
Pos-channel POS Channel of interfaces
Tunnel Tunnel interface
Vif PGM Multicast Host interface
Virtual-Template Virtual Template interface
Virtual-TokenRing Virtual TokenRing
Vlan Catalyst Vlans
accounting Show interface accounting
capabilities Show interface capabilities information
counters Show interface counters
crb Show interface routing/bridging info
dampening Show interface dampening info
debounce Show interface debounce time info
description Show interface description
etherchannel Show interface etherchannel information
fair-queue Show interface Weighted Fair Queueing (WFQ) info
fcpa Fiber Channel
flowcontrol Show interface flowcontrol information
irb Show interface routing/bridging info
mac-accounting Show interface MAC accounting info
mpls-exp Show interface MPLS experimental accounting info
mtu Show interface mtu
precedence Show interface precedence accounting info
private-vlan Show interface private vlan information
pruning Show interface trunk VTP pruning information
random-detect Show interface Weighted Random Early Detection (WRED) info
rate-limit Show interface rate-limit info
stats Show interface packets & octets, in & out, by switching
path
status Show interface line status
summary Show interface summary
switchport Show interface switchport information
transceiver Show interface transceiver
trunk Show interface trunk information
vlan Show interface vlan information
| Output modifiers
<cr>
以上是帮助选项，我们再来看看其他的快捷方式：
1、使用TAB键
当输入命令的一部分字母时，按下TAB键，系统就可以自动输入此命令的剩余字母，如：
AITG_FrontekCoreSW#sh －－－TAB键
AITG_FrontekCoreSW#show
AITG_FrontekCoreSW#show int －－－TAB键
AITG_FrontekCoreSW#show interfaces
AITG_FrontekCoreSW#show interfaces
2、命令缩写
有些命令没有必要将所有的字母输入完全，输入一部分就可以了，如：
AITG_FrontekCoreSW#sh int ＝show interface
Vlan1 is up, line protocol is up
Hardware is EtherSVI, address is 0019.aa89.dd40 (bia 0019.aa89.dd40)
.........
建议大家最好将命令记全。