CISCO Switch Commands: Difference between revisions
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= Clock = | |||
== Set == | |||
<pre> | |||
enable | |||
! | |||
clock set 18:56:00 10 Feb 2017 | |||
! | |||
configure terminal | |||
clock timezone GMT 10 | |||
</pre> | |||
== NTP == | |||
<pre> | |||
???? | |||
</pre> | |||
== Show == | |||
<pre> | |||
enable | |||
show clock | |||
</pre> | |||
= Interfaces = | = Interfaces = | ||
| Line 122: | Line 144: | ||
</pre> | </pre> | ||
== | == Trunk Port == | ||
<pre> | <pre> | ||
enable | enable | ||
configure terminal | configure terminal | ||
! | ! | ||
interface FastEthernet 0/1 | |||
switchport mode trunk | |||
exit | exit | ||
</pre> | |||
== VLAN's Show == | |||
<pre> | |||
show vlan brief | |||
! | ! | ||
show vlan id 10 | |||
! | ! | ||
show vlan id 20 | |||
! | ! | ||
exit | exit | ||
</pre> | </pre> | ||
== | = Channels = | ||
== LAG == | |||
<pre> | <pre> | ||
interface fa0/14 | |||
channel-protocol lacp | |||
channel-group 1 mode active | |||
! | ! | ||
interface | interface fa0/15 | ||
channel-protocol lacp | |||
channel-group 1 mode active | |||
exit | exit | ||
! | |||
interface port-channel 1 | |||
switchport mode access | |||
switchport access vlan 10 | |||
</pre> | </pre> | ||
= | |||
== Trunk == | |||
<pre> | <pre> | ||
enable | |||
configure terminal | |||
! | ! | ||
interface range FastEthernet 0/21-24 | |||
channel-protocol lacp | |||
channel-group 1 mode active | |||
! | ! | ||
interface port-channel 11 | |||
switchport mode trunk | |||
</pre> | </pre> | ||
| Line 209: | Line 230: | ||
! | ! | ||
show cdp entry NAME | show cdp entry NAME | ||
</pre> | |||
= Spanning Tree = | |||
== Change Root == | |||
<pre> | |||
spanning-tree vlan 1 root primary | |||
</pre> | |||
or set priority level (multiple of 4096) | |||
<pre> | |||
spanning-tree vlan1 priority xxxxxx | |||
</pre> | |||
== Disable/Portfast == | |||
At a global level | |||
<pre> | |||
enable | |||
configure terminal | |||
! | |||
spanning-tree portfast default | |||
</pre> | |||
On a particular interface | |||
<pre> | |||
enable | |||
configure terminal | |||
! | |||
interface FastEthernet 0/11 | |||
spanning-tree portfast default | |||
exit | |||
</pre> | |||
== Rapid Spanning Tree == | |||
On all switches | |||
<pre> | |||
spanning-tree mode rapid-pvst | |||
</pre> | |||
== Show == | |||
<pre> | |||
show spanning-tree | |||
show spanning-tree summary | |||
show spanning-tree detail | |||
</pre> | |||
= Syslog = | |||
<pre> | |||
logging host 192.168.1.1 | |||
</pre> | |||
= SNMP = | |||
<pre> | |||
enable | |||
configure terminal | |||
! | |||
snmp-server community test ro | |||
exit | |||
</pre> | </pre> | ||
[[Category : CISCO]] | [[Category : CISCO]] | ||
Latest revision as of 01:31, 11 February 2017
Factory Reset
enable erase startup-config
or
enable write erase
Switch IP Address
Default IP
enable configure terminal ! interface vlan 1 ip address 192.168.1.111 255.255.255.0 no shutdown exit
Default Gateway
enable configure terminal ! ip default-gateway 192.168.1.254 exit
Default Name Servers
enable configure terminal ! ip default-name 8.8.8.8 exit
Clock
Set
enable ! clock set 18:56:00 10 Feb 2017 ! configure terminal clock timezone GMT 10
NTP
????
Show
enable show clock
Interfaces
Show
Interfaces
show interface FastEthernet 0/1 ! show ip interface brief
MAC Address
show mac-address ! show mac-address interfaces fastEthernet 0/1
VLAN's
Creation
There are two type of VLANs. Interface and non Interface. Interface VLANs mean the switch can pass traffic between VLANs otherwise a router will be required.
enable configure terminal ! vlan 10 name Corporate ! vlan 20 name Test exit
VLAN IP
enable configure terminal ! interface vlan 10 ip address 192.168.11.100 255.255.255.0 no shutdown ! interface vlan 20 ip address 192.168.15.100 255.255.255.0 no shutdown exit
Ports
enable configure terminal ! interface fa0/1 switchport mode access siwthcport access vlan 10 exit interface fa0/2 switchport mode access siwthcport access vlan 20 exit interface fa0/3 switchport mode access siwthcport access vlan 30 exit ! interface range fa0/10-20 switchport mode access siwthcport access vlan 20 exit ! interface range fa0/21-24 switchport mode access siwthcport access vlan 30 exit
Trunk Port
enable configure terminal ! interface FastEthernet 0/1 switchport mode trunk exit
VLAN's Show
show vlan brief ! show vlan id 10 ! show vlan id 20 ! exit
Channels
LAG
interface fa0/14 channel-protocol lacp channel-group 1 mode active ! interface fa0/15 channel-protocol lacp channel-group 1 mode active exit ! interface port-channel 1 switchport mode access switchport access vlan 10
Trunk
enable configure terminal ! interface range FastEthernet 0/21-24 channel-protocol lacp channel-group 1 mode active ! interface port-channel 11 switchport mode trunk
Disable DNS Lookups
If you accidentally type in a command the is not recognised the switch will try to do a DNS lookup. To disable this.
enable configure terminal ! no ip domain lookup exit
CDP (CISCO Discovery Protocol)
Enable
enable configure terminal ! cdp run
Disable
enable configure terminal ! no cdp run
Show Neighbours
show cdp neighbours ! show cdp entry NAME
Spanning Tree
Change Root
spanning-tree vlan 1 root primary
or set priority level (multiple of 4096)
spanning-tree vlan1 priority xxxxxx
Disable/Portfast
At a global level
enable configure terminal ! spanning-tree portfast default
On a particular interface
enable configure terminal ! interface FastEthernet 0/11 spanning-tree portfast default exit
Rapid Spanning Tree
On all switches
spanning-tree mode rapid-pvst
Show
show spanning-tree show spanning-tree summary show spanning-tree detail
Syslog
logging host 192.168.1.1
SNMP
enable configure terminal ! snmp-server community test ro exit
