Lasts steps to MCITP !

Hello you!

I was off from networking world for some time. My company asked me to become MCITP Entreprise Administrator. I now have to pass both Vista and PRO tests for WS2008. I’m glas it’s now achieved ! I can remove all this vmware stuff from my hard drive This odissey to MCITP title was not that hard but long because it has been a long time since I had to manage servers. The vista test, 70-620, was quite easy as I always found workstation exams. I got some hands on questions,  around 5.  It was pretty nice looking and well emulated. I won’t say much to avoid breaking NDA but also because I scored well !

PRO test was a real nightmare ! I sweared a lot despite of the weather that day!! I would tell anyone taking this test to prepare very strictly ! You should have a good night before and fresh ideas. You’ll deal with long text questions and though answers… To resume, practice a lot and if you’re not experienced on technologies, go back to field or server console

See you later !

PS : I’ll make more efforts to keep this blog updated

Introduction to MPLS

Hello,

I’d like to notify you a nice article wrote by Dr. Peter J. Welcher, CCIE #1773. He explains in very simple terms how mpls functions. It’s definitely a great source for all networkers. You’ll find a lot of good documents by browsing his website.

Here is the link.

Enjoy !

Troubleshooting advice

Today, when I was troubleshooting some issues, I used a command I never talked about on this blog. It could help you in your daily job


R1#sh run int fa0/0
Building configuration...

Current configuration : 114 bytes
!
interface FastEthernet0/0
ip address 10.6.4.1 255.255.255.0
ip route-cache flow
duplex full
speed 100
end

Show command output :


R1#sh ip cache flow
IP packet size distribution (20058 total packets):
1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480
.000 .965 .013 .004 .000 .000 .000 .016 .000 .000 .000 .000 .000 .000 .000

512 544 576 1024 1536 2048 2560 3072 3584 4096 4608
.000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000

IP Flow Switching Cache, 278544 bytes
0 active, 4096 inactive, 456 added
8395 ager polls, 0 flow alloc failures
Active flows timeout in 30 minutes
Inactive flows timeout in 15 seconds
IP Sub Flow Cache, 21640 bytes
0 active, 1024 inactive, 0 added, 0 added to flow
0 alloc failures, 0 force free
1 chunk, 1 chunk added
last clearing of statistics never
Protocol Total Flows Packets Bytes Packets Active(Sec) Idle(Sec)
——– Flows /Sec /Flow /Pkt /Sec /Flow /Flow
TCP-other 10 0.0 36 64 0.0 57.1 11.1
UDP-TFTP 1 0.0 3 58 0.0 3.4 15.2
UDP-other 445 0.0 44 63 0.2 1.2 15.4
Total: 456 0.0 43 63 0.2 2.5 15.4

SrcIf SrcIPaddress DstIf DstIPaddress Pr SrcP DstP Pkts
R1#sh ip cache verb flow
IP packet size distribution (20058 total packets):
1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480
.000 .965 .013 .004 .000 .000 .000 .016 .000 .000 .000 .000 .000 .000 .000

512 544 576 1024 1536 2048 2560 3072 3584 4096 4608
.000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000

IP Flow Switching Cache, 278544 bytes
0 active, 4096 inactive, 456 added
8395 ager polls, 0 flow alloc failures
Active flows timeout in 30 minutes
Inactive flows timeout in 15 seconds
IP Sub Flow Cache, 21640 bytes
0 active, 1024 inactive, 0 added, 0 added to flow
0 alloc failures, 0 force free
1 chunk, 1 chunk added
last clearing of statistics never
Protocol Total Flows Packets Bytes Packets Active(Sec) Idle(Sec)
——– Flows /Sec /Flow /Pkt /Sec /Flow /Flow
TCP-other 10 0.0 36 64 0.0 57.1 11.1
UDP-TFTP 1 0.0 3 58 0.0 3.4 15.2
UDP-other 445 0.0 44 63 0.2 1.2 15.4
Total: 456 0.0 43 63 0.2 2.5 15.4

SrcIf SrcIPaddress DstIf DstIPaddress Pr TOS Flgs Pkts
Port Msk AS Port Msk AS NextHop B/Pk Active

CCIE study leitmotiv’

“Sooner or later, those who win are those who think they can.”