Recent content by p0lar

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    Sometimes the smallest things kill me with Cisco...

    We replied at the same time, you're going to be just fine. Anyway, there is no significance to anything beyond an integer measurement when it comes to equipment failure due to temperature. It would probably be just as adequate if they posted...
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    Sometimes the smallest things kill me with Cisco...

    Oh, and this is from an endpoint... 12.3(26)GD IOS. Device info:
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    Sometimes the smallest things kill me with Cisco...

    And just for those who are curious what device and IOS revision this is:
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    Sometimes the smallest things kill me with Cisco...

    Do you work for Cisco?:confused: It's a delta temperature, not an absolute! (and actually it's 5.4 degrees, but... I'm cool with 5.)
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    Sometimes the smallest things kill me with Cisco...

    <rant> <vent> Someone tell me... when you pay thousands of dollars for hardware (and software) and not only does it crash under a relatively moderate load (>2000 concurrent call legs, sans media), but still exhibits very stupid flaws in common logic, what are we supposed to think? Is it...
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    Network Switch

    Cisco, and I'll jump on either the 3560 or 3750 bandwagon. :)
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    Cisco 1720 / QoS question for VoIP services

    The 1720 does support it, but the most difficult part doesn't lie in the QoS or even IOS selection, but a protocol inspection such that the IOS knows to prioritize the proper outbound UDP port selected when negotiating the RTP connection. The two protocols operate in similar ways with respect...
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    SSH tunneling - per user rules

    OpenSSH has made some leaps and bounds in the past year with respect to per-user rule policies. The documentation is quite comprehensive, have you been through that yet? I hate to be one of those RTFM guys, but with respect to OpenBSD, it is authoritative, bar none.
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    KVM?

    +1 on the IP-Based Avocents. Those were rebadged for dell enterprise configurations several years ago and really were grade-A units. IIRC, most were KVMoSTP. I believe I actually still have a blocking 1:8 port adapter somewhere..
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    Not able to get even close to full speed of Comcast High speed internet service.

    What devices are between your cable modem and the testing node?
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    Bittorrent slows down web surfing

    Correct answer! +1 prioritize your ACKs over all other outbound traffic or reduce your bittorrent to some arbitrarily lower percentage of your total outbound bandwidth. Also, bear in mind an increase in latency that can come from overutiliziation of a given circuit and can drastically reduce...
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    Confused about what an IP address is good for

    100% agreed, it is not simple whatsoever. I won't even get into how feasible for certain situations it is to have overlapping networks that are publicly inet routed/registered and controlled by dynamic routing protocols.
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    I want to combine my cell phone network connection with my wired connection

    Though possible, it is an exceptionally bad idea due to the drastic difference in TCP sliding window sizes derived from such drastic latency differentiation. About the best you could hope for in a circumstance like this would be redundancy; otherwise, don't do it.
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    jeeeez... customer puts up sql server without firewall and wonders

    The horrors... ugh. I was on the network end of a co-lo company that had a SQL server hijacked 4 times in one week like this. I think they finally just hard-wired the customer's port to 10mbit/s because they were SO dumb and now they just charge them for the bandwidth when they do Dumb Things...
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    ssh not accepting valid passwords

    The paranoiac in me would run a MD5 summer on the sshd binary that's currently being executed as well as another one from a system with the same version of CentOS/upgrades. The practician in me would check /etc/ssh/sshd_config to see if PasswordAuthentication is set to no.