CCSI# 31965

13. Feb, 2008  Herbert  1 Kommentar

Ich habs geschafft, nach meinem erfolgreichen CCNA bin ich seit gestern offiziell CCSI (Certified Cisco Systems Instructor)

Dear CCSI Herbert Feutl - CCSI# 31965,

Congratulations on qualifying as a Certified Cisco Systems Instructor. Your certification shows that Cisco has confidence in your technical skills and your ability to deliver the high-quality technical training for which Cisco is already well known. Please contact your Cisco Learning Partner Instructor Team Lead for more information about how to receive your certificate. We hope that you will display your instructor certificate proudly; it demonstrates a well-deserved achievement.

So und nun gehts weiter – naechstes Ziel: Certified Cisco Professional ;)

Most important table to pass CCNA

23. Jan, 2008  Herbert  Kein Kommentar

msk — mbt — sbn — hst — wmk
255 — /32 — 0
254 — /31 — 2(128) — 0 — 1
252 — /30 — 4(64) — 2 — 3
248 — /29 — 8(32) — 6 — 7
240 — /28 — 16(16) — 14 — 15
224 — /27 — 32(8) — 30 — 31
192 — /26 — 64(4) — 62 — 63
128 — /25 — 128(2) — 126 — 127

msk=last octet of sub.mask ex. 255.255.255.192
mbt=mask bit
sbn=1st subnet address(how many on network)
hst=number of hosts
wmk=wildcard mask (last octet) ex. 0.0.0.63

Using binary notation it is easy to wrote this table upside-down.
sbn = 256 – msk
number of subnets = 256 / sbn
hst = sbn – 2
Wildcard mask = sbn – 1

Einfach nötig sonst wirds knapp mit der Zeit bei ICND 1 und 2 ;)
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