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CCIE DC Lab 3 - gave my first attempt

ccie dc

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#1 techfreak167

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Gave my first DC attempt recently and unfortunately failed scoring 75 percentage. I have posting a couple of questions below, where i would have lost my masks. Hoping to get some clarity here.

 

1. Configure FCoE NPV-NPIV F-Port Trunking and Port Channeling link between DC2-N7K-2 and
DC2-N5K-1 switches.
Create VSAN 100 and allow only this VSAN across the link using port 13.
Create VSAN 108 and allow only this VSAN across the link using port 14.
VSAN trunking is not permitted. Use 13 and 14 as corresponding port channel number.there is no way to disable trunking under the VFC

 

I understand this has been discuss multiple times, but never had a consistent solution. And yes, it is not a mistake, the question clearly states "vsan trunking is not permitted" and the port-channel is to be used.

 

I followed the below solution. Can someone throw some light here.

N5K:
int e 1/13 => int po 13 => int vfc 13
int e 1/14 => int po 14 => int vfc 14

N7K:
int e 3/13 => int po 13 => int vfc-san-port-channel 13
int e 3/14 => int po 14 => int vfc-san-port-channel 14

 

 

2. Second question is on Section 3 which includes creating of boot policy first from Vmedia second from SD card and no HBA's configured in the sp.

 

I followed the below solution

 

create Local disk policy and enable flexflash sd card and attached to SP template and create boot policy  and select boot from local disk  "even if there is no disk" you have to select it to enable SD card  support in 2.1 version

 

3. Finally on the section 1.10
All users in vlan 30 should be shared with 10.1.30.124 as gateway. Make sure that all outgoing traffic into this vlan should be handled by 10.1.30.125 without changing users configuration.

I followed the below solution

vpc domain x
vpc peer-gateway exclude vlan 30

where as other forums are suggesting to exclude vlan 40, really not sure of the rational behind this.

 

Can you guys clarify these points which will be a great help to everyone else in the forum


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#2 techfreak167

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guys, any inputs

 

Few more for UCS question

Firstly, i configured the default local-disk-config-policy by enabling the Flex Flash State.
    Next, selected CD-ROM as number 1 option, option 2 as local disk
    Third option as eth0 and eth1 and finally selected the No HBA option

    There is also a sub -question related to configuring wake on LAN
    "A secondary Management IP is required to support Wake on LAN" - for this i assigned the management ip pool in the SP.

    I did not create the BIOS Policy explicitly and left the "Select (Default policy used by default)" - noticed the BIOS default policy in each blade model configured as you suggested      (Eg., B200 M2, B230 M2, .. had the options of "Make device non bootable -set to disabled" and "USB Power optimization set to high performance".

    Wouldn't configuring a new BIOS policy override the default BIOS policies



#3 aymanovitchy

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hello ,

techfreak

i would like to share with some info

for 3rd question

the peer-gateway enable the proxy routing so if we assume that the Network gateway is only on N7K-4 and the users are connected to N7K-3 with their default gateway

so if the peer gateway will enable the vpc peer to make a l3 lookup and send it over the peerlink.

so if you only need it for vlan 30 disable it for vlan 40

in the exclude command

here is the output you should have in the show mac address table

G 30       4055.3925.8743    static       -       F    F  vPC Peer-Link(R


* 40       4055.3925.8743    static       -       F    F  vPC Peer-Link

 

for question one i have no clue i tried all options may be we can try together to reach an optimum solution

 

for the UCS i believe you made it right unless your score does not reflect this .

 

i would like to ask about one thing in NXOS

 

did u advertise the vlans in ospf under the interface or you made a route map

since the question is only asking to advertise the network without stating areas or any thing

 

the last thing did u change anything in the BIOS settings ?!



#4 techfreak167

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Thanks for your response, you totally hit the nail on the head. I advertised the vlans in ospf vlan 31 , vlan41 ip ospf 1 area 2 no sh As far as the BIOS settings is concerned for the UCS vmedia and sd boot section - Dint configure a new BIOS policy as per recommendation, as all the default BIOS policies contents reflected the usb and device not bootable settings . Make Device Non Bootable—set to disabled USB Idle Power Optimizing Setting—set to high-performance Should we have configured a new BIOS policy and mapped them to the Service Profile.

#5 dlastman

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Excellent questions you've posted techfreak. These are the 2 questions that baffle me the most and I'm not sure anyone has a definite solution yet. My 2 cents are;

 

Question 1: you've done this right but you may need to use command; vsan 100 interf vfc 13 and repeat for both vfc and vfc-po 14. I believe these should place the interfaces in non-trunk. Someone absolutely sure needs to comment on this.

 

I believe Anymano hit the answer dead on as this is 100% correct.

 

The MOST confusing one is the SP template. The issue is vmedia & BIOS and then there's the issue of WoL!

I'm completely up for IM discussion if that's preferred as we need to crack these!



#6 umsiddiq

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techfreak167

which location did you appear in the lab ?



#7 dcfreak

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Do you mind sharing your score report ? where did you missed most of the points ?

 

was this your first attempt ever? where did you took it?

 

Your Answers seems right. the Flexflash is a sticking one for sure. so far i didn't hear of getting it right. 

there is a white paper for it and the tracks show that they intentionally bring questions strait from the wall papers:

http://www.cisco.com...c11-734876.html

 

 



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