From: Jo Knight (joknight@gmail.com)
Date: Mon Jan 07 2008 - 17:01:40 ARST
Is this a ROAST task?
John wrote:
> I am tasked with configuring dot1q trunking between R4, R5, SW3, and SW4. R4
> is trunking to R5 via e0/0.45. R4 is trunking to SW3 via e0/0.49. R5 is
> trunking to SW4 via e0/0.40. R5 is trunking to R4 via e0/1.45. R5 is
> trunking to SW3 via e0/1.59. R5 is trunking to SW4 via e0/1.50.
>
> I'm having problems understanding a couple of things. first how R4 and R5
> for example can have trunks to three different devices coming into a single
> interface. second in the diagram it has the interfaces for the trunks on the
> switches as vlan40 and vlan50 on SW4 and vlan49 on SW3. Those are not
> physical interfaces. The solution says that I should be configuring SW2 f0/4
> and SW3 f0/5. I'll assume that SW2 is supposed to be SW4 it's still short one
> trunk port.
>
> How am I supposed to determine which switch interfaces to use in a situation
> like this and if someone can please explain how three devices each with a
> seperate physical connection can attatch to a single physical interface on
> another device I would appreciate it
>
> thanks
>
> JG
>
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