From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Sat Mar 22 2008 - 01:57:14 ART
Mike,
I'll look this section over and lab it up first thing in the morning.
I'll add some detailed comments to the solutions to help clarify the
section. Let me know offline if you have any other questions regarding
it.
Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: +1-775-544-1653 (Outside the US and Canada)
>----- Original Message -----
Subject: Lab 16 - Q1.1, Q1.2, Q1.3, Q1.4
Date: Fri, March 21, 2008 9:12
From: "Michael Whittle" <mgwhittle@gmail.com>
> Is anyone as frustrated as I am with the switching questions from Lab 16 in
> the InternetworkExpert labs?
> 1.1
>
> This question says that SW1 and SW2 shouldn't have VLAN45 created on it. In
> later questions you find out that they expect you to configure all the
> switches in VTP transparent mode. That's fine but R4 and R5 both in VLAN45
> need to communicate with each other. R4 is connected to SW4 on Fa0/4 and R5
> is connected to SW3 on Fa0/5. There is no trunks or access links in VLAN45
> between SW3 and SW4 so it would need to be via the access links to SW1 and
> SW2. The question says not to create VLAN45 on them so I would have thought
> a tunnel would be needed. The solution makes no mention of this. Only
> includes VLAN100 and VLAN200 and that's all. Why are these VLAN's not
> created in the 1.4 solution instead? It's just confusing matters.
>
> The solution also shows a Vlan3003 interface created with an IP address.
> This isn't shown in the diagram and wasn't in the question. Any ideas why
> this was done?
>
> 1.2.
>
> VLAN3003 only exists on SW3 so why does the solution say it needs to be
> configured on all switches and trunks?
>
> 1.3.
>
> The first question says VLAN45 shouldn't be created on SW1 and SW2 but then
> it says SW1 Fa0/9 and Fa0/10 should be in VLAN45. What is happening here?
>
> 1.4.
>
> In this question I thought this would provide the tunnel for VLAN45 between
> SW3 and SW4. I configured VLAN45 on the two ports facing SW1 and SW2 on
both
> SW3 and SW4 respectively. The solution only mentions the configuration of
> VLAN45 on the access ports on SW3 and SW4. The tunnel configuration isn't
> mentioned. I assumed the VLAN100 and VLAN200 must be used for the two
> tunnels so I configured it as below and I have connectivity between R4 and
> R5 now. VLAN100 and VLAN200 isn't mentioned in the questions or diagrams.
> Are you free to just use anything if it's not mentioned?
>
> Solution:
>
> Rack1SW1#sh run int fa0/16
> Building configuration...
>
> Current configuration : 181 bytes
> !
> interface FastEthernet0/16
> description Link to Rack1SW3 | FastEthernet0/13
> switchport access vlan 100
> switchport mode dot1q-tunnel
> l2protocol-tunnel cdp
> no cdp enable
> end
>
> Rack1SW1#sh run int fa0/17
> Building configuration...
>
> Current configuration : 181 bytes
> !
> interface FastEthernet0/17
> description Link to Rack1SW3 | FastEthernet0/14
> switchport access vlan 200
> switchport mode dot1q-tunnel
> l2protocol-tunnel cdp
> no cdp enable
> end
>
> Rack1SW2#sh run int fa0/19
> Building configuration...
>
> Current configuration : 179 bytes
> !
> interface FastEthernet0/19
> description Link to Rack1SW4 | FastEthernet0/16
> switchport access vlan 100
> switchport mode dot1q-tunnel
> l2protocol-tunnel cdp
> no cdp enable
> end
>
> Rack1SW2#sh run int fa0/20
> Building configuration...
>
> Current configuration : 179 bytes
> !
> interface FastEthernet0/20
> description Link to Rack1SW4 | FastEthernet0/17
> switchport access vlan 200
> switchport mode dot1q-tunnel
> l2protocol-tunnel cdp
> no cdp enable
> end
>
> I'm moving onto the Frame-Relay section now... just needed that little
rant.
> It's such a pain when the questions and solutions have mistakes. ;(
>
> Regards,
> Mike
>
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