Task 1.2 from the CCNP-to-CCIE Transition kit Switch Lab 3. There are 3
mini tasks associated with this one:
- "Configure manual trunking with dot1q encapsulation on the fa0/23 and
fa0/24 interfaces between Cat1 and Cat2."
- "Shutdown the Gig interconnections between Cat1 and Cat2."
-- Here's the kicker --> "Configure port-channel 12 interface between
Cat1 and Cat2 as a manual trunk without any trunkning protocol, with
these ports as members."
This is what I came up with:
int range fa1/0/23 - 24
desc ### Link->Cat2 ###
switch trunk encap dot1q
switch mode trunk
switch none
exit
int fa1/0/48
shutdown
exit
int po12
desc ### Po12->Cat2 ###
switch trunk encap neg
switch mode trunk
exit
int range fa1/0/23 - 24
channel-group 12 mode on
end
but when I applied it, it rejected it. Command rejected: An interface
whose trunk encapsulation is "Auto" can not be configured to "trunk"
mode.
Cat1(config)#int range fa1/0/23 - 24
Cat1(config-if-range)# desc ### Link->Cat2 ###
Cat1(config-if-range)# switch trunk encap dot1q
Cat1(config-if-range)# switch mode trunk
Cat1(config-if-range)# switch none
Cat1(config-if-range)#exit
Cat1(config)#int fa1/0/48
Cat1(config-if)# shutdown
Cat1(config-if)#exit
Cat1(config)#int po12
Cat1(config-if)# desc ### Po12->Cat2 ###
Cat1(config-if)# switch trunk encap neg
Cat1(config-if)# switch mode trunk
Command rejected: An interface whose trunk encapsulation is "Auto" can
not be co
nfigured to "trunk" mode.
Cat1(config-if)#exit
Cat1(config)#int range fa1/0/23 - 24
Cat1(config-if-range)# channel-group 12 mode on
Cat1(config-if-range)#end
Cat1#
*Mar 1 00:35:17.704: %SYS-5-CONFIG_I: Configured from console by
console
Cat1#
According to the DSG, the author uses dot1q trunking explicitly. My
biggest question is, is this a trick question??? as the visio drawing
clearly displays the link as a dot1q etherchannel mode, and the little
mini task states to put the single ports in dot1q encapsulation. Should
I have known to manually set it, even though the guide says not too?
Thanks, this would be useful to know as I progress to the 8 hour labs
and the real deal. Thank you.
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