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Home > Archive > CCIE > June 2001 > help!! not able to trunk between SWITCHES
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help!! not able to trunk between SWITCHES
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| techyrus1 2001-05-31, 8:00 am |
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Does anyone know how to asociate trunking between the 5500 switch ,the 2924xl switch and the 1900.I've encapsulated ISL,auto duplex,vtp server and they still will not see each other nor pinging them.Is thier anything that i am missing and does anyone have any Documentation and commands on the 2924xl switch.
ThanksSWITCHES | |
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| first you need to make sure you have link lights on the switch ports, then set all the switches other than the server switch in vtp client mode in the same vtp domain.
once done with that, you need to clear the configs (sounds goofy but true, cycle power the switch, and then voila......)
remember a trunk is not used to carry the traffic of multiple vlans. if you do not have a router routing between the vlans, you will only be able to ping machines in the vlan you are connected to (vlan 1).
MAKE SURE YOU ARE IN TRUNK MODE ON AT LEAST ONE END< IF YOU USE DESIRABLE IT WILL NOT WORK < I WOULD PUT BOTH IN TRUNK MODES AND SPECIFY WHICH VLANS TRANSVERSE IT<
to trunk go to the port you are configuring
e.g:
switchport mode trunk
switchport multi vlan add (insert your vlans you are trunking)
switchport trunk encapsulation ISL
do the same on the next unit, then use the menu in the 1900. | |
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| set trunk x/x on
set trunk x/x (vlan #'s you want to trunk)
eg: set trunk 1/1 1-12 (1-12 are vlans)
(you can one step it like this with newer sw rev's)
Set trunk 1/1 on isl 1-12
remember to set your vtp info first
( I would make this your server and the other your clients, or make the unit your server you always have up)
set vtp domain xxxxx
set vtp mode server
very easy
IT IS VERY IMPORTANT AFTER THE TRUNKS ARE DONE CORRECTLY TO CLEAR THE CONFIGS OF THE CLIENTS AND CYLCE POWER THEM< IT WIL GIVE THE SERVER THE HIGHEST REV AND YOUR VTP WITLL WORK | |
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| quote:
Originally posted by techyrus1
Does anyone know how to asociate trunking between the 5500 switch ,the 2924xl switch and the 1900.I've encapsulated ISL,auto duplex,vtp server and they still will not see each other nor pinging them.Is thier anything that i am missing and does anyone have any Documentation and commands on the 2924xl switch.
ThanksSWITCHES
Have you configure the vlan database in the 2924XL switch. |
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