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kb:cisco_switches [2017/08/02 14:33]
Dan Mundy
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-====== Cisco Switches ====== 
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-===== VLANs ===== 
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-To show the VLANs and port assignments:​ show vlan brief 
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-===== Trunk ports ===== 
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-If you're not sure which interfaces are set to trunk or not, try: 
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-<​code>​show interfaces trunk module 1</​code>​ 
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-Show which VLANs are allowed on the trunk port: 
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-<​code>​show interfaces gigabitEthernet 1/0/24 trunk</​code>​ 
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-If you want to specify which VLANs are allowed on the trunk port: 
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-<wrap info>​Note:​ If there is not a cable plugged in to the trunk port, it will say "Vlans allowed: none"</​wrap>​ 
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-<​code>​ 
-int gi1/0/24 
-switchport trunk allowed vlan 1,​100</​code>​ 
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-<WRAP center round help 60%> 
-But if you don't specify, then it will allow all VLANs. (I think... but this is not confirmed) 
-</​WRAP>​ 
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kb/cisco_switches.1501650232.txt.gz · Last modified: 2017/08/02 14:33 by Dan Mundy