Posts tagged CCIE

Plan of Attack

Apr 23rd

Posted by Colby in Personal

8 comments

So I need to get some kind of structure together for lab study. This isn’t really my thing, I typically just wing it, but I don’t think that’s going to work as well for the lab, lol. Here’s the blueprint in its entirety:

1.00 Implement Layer 2 Technologies
1.10 Implement Spanning Tree Protocol (STP)
(a) 802.1d
(b) 802.1w
(c) 801.1s
(d) Loop guard
(e) Root guard
(f) Bridge protocol data unit (BPDU) guard
(g) Storm control
(h) Unicast flooding
(i) Port roles, failure propagation, and loop guard operation
1.20 Implement VLAN and VLAN Trunking Protocol (VTP)
1.30 Implement trunk and trunk protocols, EtherChannel, and load-balance
1.40 Implement Ethernet technologies
(a) Speed and duplex
(b) Ethernet, Fast Ethernet, and Gigabit Ethernet
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Simple IPv6 Tutorial

Apr 20th

Posted by Colby in Tutorials

9 comments

Today we’ll configure a basic IPv6 network. I’m not a big fan of IPv6. I’ve never used it in the real world, so it’s hard for me to keep it in my head, but I’ve been studying the hell out of it for the Written, so here goes.

We have a simple topology, only three routers. We will be running OSFPv3 on our serial links and loopbacks. Here’s our topology:


(Click image for fullsize)

First we’ll configure our IPv6 addresses:

R1:
R1(config)#ipv6 unicast-routing
R1(config)#int s0/0
R1(config-if)#ip add 10.1.12.1 255.255.255.0
R1(config-if)#ipv6 add 10:1:1:12::1/64
R1(config-if)#no shut
 
R2:
R2(config)#ipv6 unicast-routing
R2(config)# int s0/0
R2(config-if)#ip add 10.1.12.2 255.255.255.0
R2(config-if)#ipv6 add 10:1:1:12::2/64
R2(config-if)#no shut
R2(config-if)#exit
R2(config)#int s0/1
R2(config-if)#ip add 10.1.23.2 255.255.255.0
R2(config-if)#ipv6 add 10:1:1:23::2/64
R2(config-if)#no shut
 
R3:
R3(config)#ipv6 unicast-routing
R3(config-if)#int s0/1
R3(config-if)#ip add 10.1.23.3 255.255.255.0
R3(config-if)#ipv6 add 10:1:1:23::3/64

The first thing we do on each router is enable IPv6 routing. Then we give the interface an IPv4 address and finally an IPv6 address.

Let’s verify connectivity from R2:

Serial0/0 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::C001:71FF:FE12:0
  Global unicast address(es):
    10:1:1:12::2, subnet is 10:1:1:12::/64
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF00:2
    FF02::1:FF12:0
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds
  Hosts use stateless autoconfig for addresses.
Serial0/1 is administratively down, line protocol is down
  IPv6 is enabled, link-local address is FE80::C001:71FF:FE12:0 [TEN]
  Global unicast address(es):
    10:1:1:23::2, subnet is 10:1:1:23::/64 [TEN]
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF00:2
    FF02::1:FF12:0
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds
  Hosts use stateless autoconfig for addresses.
 
R2#sh ipv int b
Serial0/0                  [up/up]
    FE80::C001:71FF:FE12:0
    10:1:1:12::2
Serial0/1                  [up/up]
    FE80::C001:71FF:FE12:0
    10:1:1:23::2
 
R2#ping  10:1:1:12::1
Sending 5, 100-byte ICMP Echos to 10:1:1:12::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/2/4 ms
 
R2#ping  10:1:1:23::3
Sending 5, 100-byte ICMP Echos to 10:1:1:23::3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/3/12 ms

We have connectivity between interfaces on the same subnet.

Now we’ll configure our loopbacks and OSPFv3:

R1:
R1(config-if)#int lo0
R1(config-if)#ipv6 add 1:1:1::1/64
R1(config-if)#ipv6 ospf 20 area 0
R1(config-if)#int s0/0
R1(config-if)#ipv6 ospf 20 area 0
 
R2:
R2(config)#int lo0
R2(config-if)#ipv6 add 2:2:2::2/64
R2(config-if)#ipv6 ospf 20 area 0
R2(config-if)#int s0/0
R2(config-if)#ipv6 ospf 20 area 0
R2(config-if)#int s0/1
R2(config-if)#ipv6 ospf 20 area 0
 
R3:
R3(config)#int lo0
R3(config-if)#ipv6 add 3:3:3::3/64
R3(config-if)#ipv6 ospf 20 area 0
R3(config-if)#int s0/1
R3(config-if)#ipv6 ospf 20 area 0

With v6 we enable OSPF directly under the interface on which it runs.

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Passed The Written!

Apr 19th

Posted by Colby in Personal

16 comments

So I took the CCIE Written today. Thought I had a good chance of passing if I didn’t get hammered too bad on Multicast and some other stuff. I passed!

It was a really hard exam. I scored a lot lower than usual, but still eked out a pass. Lots of questions, some super easy, and some very, very hard. As I already knew, I really need to work on Multicast. I had 77 questions total and I felt like I had more than enough time. There were some tricky questions on there, so make sure to read carefully for those of you who take it. Narbik’s class definitely got me through the exam. That and studying my weak points all weekend.

I don’t know when I’m doing the lab (stop asking! lol). Narbik comes to Orlando in August, so I’d like to retake his camp then and hopefully do my first attempt at the monster in September.

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Narbik Summary

Apr 17th

Posted by Colby in Personal

12 comments

The class was great, I feel like I learned so much. I will definitely be taking it again before doing the lab. Here’s the layout again:

  • Day 1
    • Switching
      • Basics
      • Security
      • QoS
    • Frame Relay
  • Day 2
    • OSPF
    • Eigrp
  • Day 3
    • QoS
    • RIP
  • Day 4
    • BGP
    • MPLS
  • Day 5
    • Multicast

The depth and coverage of all technologies were amazing. I hope I retained even 50% of everything he taught us, even with 50% of it I think I’d have a good shot at passing the lab on the first try. My favorite day was BGP and MPLS, because I can’t get enough of those. Each day was grueling and and amazing. The workbooks are the best I’ve seen so far. The explanations provided in the answers are infinitely helpful in understanding the technologies.

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Narbik Days 4 and 5

Apr 16th

Posted by Colby in Personal

4 comments

Yesterday was BGP and MPLS. Probably my favorite day. I really can’t get enough of those technologies. It was mostly lecture which was very deep. This was the first day that I felt like I wasn’t far behind the lecture. I knew 95% of what we were talking about and how to implement it. I was quite happy. Naturally Narbik showed me some stuff I’d never seen and gave me a new way to think about things. All in all, it was a great day.

After class (~9:30) a few of us, including Narbik, went to the hotel next door to grab some drinks. It was a good time.

Today is a short day and the technology is Multicast. This is one of my weaker subjects as I haven’t really touched it since BSCI. I’m hoping to learn and retain a lot today.

I’m considering starting up a new thing where I interview some network veterans. Nothing spectacular, maybe something like 10 relatively short questions. Narbik has agreed to be my first test subject if you guys are interested. If so, what questions would you like me to ask? Let me know!

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