FYI, we have released 18 new Huawei device SNMP simulations:
* HUA WEI CORP. SNMP agent for Quidway R2621 Software Version VRP 1.65
* HUA WEI CORP. SNMP agent for QuidWay R2621E Software Version VRP 1.4.1
* HUA WEI CORP. SNMP agent for QuidWay R2631E Software Version VRP 1.5.6
* Huawei VRP Software Version 3.40, Release 0201P07..Quidway Series Router AR46-40
* Huawei Versatile Routing Platform Software Version..Quidway S2008-HI
* Huawei Versatile Routing Platform Software Version 3.10..Quidway S2016-EI
* Huawei Versatile Routing Platform Software, Software Version 3.10, Release 0010..Quidway S2016-HI
* Huawei Versatile Routing Platform Software Version..Quidway S2403H-HI
* Huawei Versatile Routing Platform Software Version 3.10..Quidway S2403H
* Huawei Versatile Routing Platform Software, Software Version 3.10, Release 2107P01..Quidway S2403TP-EA
* Huawei Versatile Routing Platform Software Version 3.10..Quidway S3528G
* Huawei Versatile Routing Platform Software Version 3.10..Quidway S3528G
* Huawei Versatile Routing Platform Software Version 3.10..Quidway S3552G
* VRP Comware Platform Software, Software Version 5.20, Release 5303..Quidway S3552P-EA
* Huawei VRP Software Version 3.10, Release 1510P02..Quidway S3928P-EI
* Huawei VRP Software Version 3.10, Release 1510P02..Quidway S3952P-EI
* Huawei Versatile Routing Platform Software, Software Version 3.10, Release 1278P08..Quidway S8512-EI
* Huawei VRP Netengine Software Version VRPV500R001B12D053SP05..NE20-4 Version V200R002C01B200
You can download them with the Update Wizard in MIMICView.
Wednesday, May 26, 2010
Wednesday, May 19, 2010
Preventing network outages
Outages for major networks and websites have become so common-place, there
are even sites dedicated to reporting them.
For example, the recent Youtube outage caused a flurry of tweets. This
interesting posting details a technique to use Google's timeline feature to track
outages of major sites. Using that technique, one can search for "network
outage", and track down a Playstation 3 network outage starting February 28
that lasted for a couple of days.
Rarely does one get to know the specifics of a particular outage, such as
root cause and duration. When details are reported, one has to be skeptical
as to the veracity of the report. Regardless of the cause, what is interesting
is the relation of the cost of downtime caused by outages vs. the cost to prevent them.
The telephone companies calculated that relation a long time ago when they
instituted the five nines metric of uptime. They figured they could live with
the cost of 5 minutes downtime a year, and spent the money on resources to get
there.
When you plan for spending resources on your network reliability, ask yourself
how long a downtime you can live with first, then allocate the resources in
man-power, equipment and software to achieve the desired reliability.
SNMP simulation software allows you to test your network management
procedures before network outages occur.
are even sites dedicated to reporting them.
For example, the recent Youtube outage caused a flurry of tweets. This
interesting posting details a technique to use Google's timeline feature to track
outages of major sites. Using that technique, one can search for "network
outage", and track down a Playstation 3 network outage starting February 28
that lasted for a couple of days.
Rarely does one get to know the specifics of a particular outage, such as
root cause and duration. When details are reported, one has to be skeptical
as to the veracity of the report. Regardless of the cause, what is interesting
is the relation of the cost of downtime caused by outages vs. the cost to prevent them.
The telephone companies calculated that relation a long time ago when they
instituted the five nines metric of uptime. They figured they could live with
the cost of 5 minutes downtime a year, and spent the money on resources to get
there.
When you plan for spending resources on your network reliability, ask yourself
how long a downtime you can live with first, then allocate the resources in
man-power, equipment and software to achieve the desired reliability.
SNMP simulation software allows you to test your network management
procedures before network outages occur.
Wednesday, April 14, 2010
Lessons learned from Toyota
The recent Toyota safety problems remind us of the need for more thorough testing
of complicated, interconnected systems, such as computer networks. As networks
become ever more entangled in human lives, preventing problems such as Toyota's does
not only make financial sense, but also could affect our comfort, safety and health.
What if you could put your network management system through its paces like driving
a car at 500 miles per hour for years? What if you could introduce glitches into your
correlation engines like those acceleration anomalies? What if you could drive your
network around the proverbial test track not once but a million times?
With SNMP simulation you can, and if there is any pushback, just remind them of Toyota.
of complicated, interconnected systems, such as computer networks. As networks
become ever more entangled in human lives, preventing problems such as Toyota's does
not only make financial sense, but also could affect our comfort, safety and health.
What if you could put your network management system through its paces like driving
a car at 500 miles per hour for years? What if you could introduce glitches into your
correlation engines like those acceleration anomalies? What if you could drive your
network around the proverbial test track not once but a million times?
With SNMP simulation you can, and if there is any pushback, just remind them of Toyota.
Monday, April 12, 2010
HP Procurve network in MIMIC SNMP Simulator
FYI, we have recently released a new network in the network library
for MIMIC SNMP Simulator: a small network comprised of HP Procurve
switches. The topology is shown in this diagram produced by
CastleRock's SNMPc.
for MIMIC SNMP Simulator: a small network comprised of HP Procurve
switches. The topology is shown in this diagram produced by
CastleRock's SNMPc.
Friday, April 9, 2010
Thursday, April 8, 2010
MIMIC SNMP Simulator on Fedora 12 LXDE Spin
FYI, we were able to run MIMIC SNMP Simulator 10.20 on Fedora 12 LXDE Spin
after disabling the Firewall. See the screenshot:
after disabling the Firewall. See the screenshot:
Tuesday, April 6, 2010
The iPhone bandwidth dilemma
With Verizon eyeing the iPhone (see PC World Story) the trend for bandwidth-hogging
smart phones (see Fortune story) continues to accelerate.
In addition to expanded spectrum, the additional network infrastructure will have to be
managed efficiently. Gambit Communications' MIMIC Simulator is uniquely
positioned to assist in developing smart network management and provisioning
environments, as it has already done for Go Networks and other wireless vendors.
smart phones (see Fortune story) continues to accelerate.
In addition to expanded spectrum, the additional network infrastructure will have to be
managed efficiently. Gambit Communications' MIMIC Simulator is uniquely
positioned to assist in developing smart network management and provisioning
environments, as it has already done for Go Networks and other wireless vendors.
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