Justin Knash wrote: > I'm fairly new to rrdtool, but I have been using mrtg for about a > year. I'm trying to graph some gigabit uplinks on some Cisco Catalyst > 6509 switches. The problem I'm running into is that I get large spikes > every once and a while, and my graph ends up only showing the spike, > and not the rest of the data. Any ideas?
1) Define "large spike". If the spike is below 1 Gbps it could be a real spike actually occuring on your network ... 2) Make sure you've set proper min and max values; use rrdtool tune to check and, if necessary, correct this Existing spikes that are a result of missing max values can be removed by setting the max value, dumping the database then restoring it again with the -r flag. If (1) is the case then there's nothing you can do about it without masking the thruth from the viewer. It is reality in that case. If you *really*need* to lye then you could use --upper-limit and --rigid to set a fixed, low enough, maximum to the image -or- you could do the CDEF magic as described in the tutorial. HTH -- __________________________________________________________________ / [EMAIL PROTECTED] [EMAIL PROTECTED] \ | work private | | My employer is capable of speaking therefore I speak only for myself | +----------------------------------------------------------------------+ | Technical questions sent directly to me will be nuked. Use the list. | +----------------------------------------------------------------------+ | http://faq.mrtg.org/ | | http://rrdtool.eu.org --> tutorial | +----------------------------------------------------------------------+ -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
