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  • Stubby Post: Cisco Has Changed the Internet*

    *  For definitions of “changed” and “Internet” Today Cisco announced their new CRS-3 that replaces the CRS-1.  The CRS-3 has some damn impressive numbers for sure with 322Tbps, or about 1 LOC/sec (that’s a Library of Congress per second).  In three to five years, it might enable some technologies that we can’t use today, but

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  • NBAR and HTTP Data Conversations

    I’m still working on the ONT test and doing labs, so I marked up a lab for me to work.  I’m using the same setup as I did last time.  The two routers are 3640s running 12.4(25b). Part of the lab was to identify HTTP traffic coming into F0/0 and mark it as CS3.  That’s

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  • QoS Pre-classify and Class-map Order

    I’m still studying for the ONT test, so I did some labs tonight.  One of them was to demonstrate the qos pre-classify command for tunnel interfaces.  When you have a packet sent over a GRE tunnel, the ToS field gets copied to the GRE packet, but there’s no way to see the original packet’s higher-level

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  • Stubby post: ROUTE Cert Kit Giveaway

    Rofi at ITDualism is giving away a ROUTE cert kit to a random commenter. Swing by there and put your name in the hat.

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  • ONT – Epic Fail

    I took the ONT test today. It wasn’t a happy ending.

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  • ONT Notes – WLAN Management

    Finally, the last chapter of the ONT study entries is here. WLAN management is the subject.

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  • ONT Notes – 802.1x and Encryption on LWAPs

    I think we’re almost done with the ONT notes, but here’s another installment on auth and encryption on LWAPs.

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  • ONT Notes – QoS On Wireless Networks

    Imagine that…another ONT notes post. This one is about QoS on wireless networks.

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  • ONT Notes – AutoQoS

    Here are some more notes from my ONT studies. AutoQoS seems to be pretty straightforward.

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  • ONT Notes – Pre-classify and End-to-end QoS

    Here are some more ONT notes. We study pre-classifying and end-to-end QoS this time.

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