initial commit - this has actually been in production for a year

README.md

+nagios style plugin that monitors C3 discards and b2b credit zero errors on Brocade FOS switches

check_brocade_port_err.py

+#!/usr/bin/python
+
+#
+
+import sys
+import os
+import getopt
+import re
+from datetime import datetime
+import netsnmp
+import pickle
+
+hostname = 0
+warning = 0
+critical = 0
+warnList = []
+critList = []
+version = '1'
+community = 0
+oidIndex = '.1.3.6.1.4.1.1588.2.1.1.1.6.2.1.1'
+oidName = '.1.3.6.1.4.1.1588.2.1.1.1.6.2.1.36'
+oidC3discards = '.1.3.6.1.4.1.1588.2.1.1.1.6.2.1.28'
+oidB2BNoCredits = '.1.3.6.1.4.1.1588.2.1.1.1.6.2.1.20'
+debug = 0
+portdict = {}
+olddict = {}
+tmpfile = ''
+exitStatus = ""
+timedelta = ""
+
+
+# USAGE
+def usage():
+    print "usage: check_brocade.py -H hostname"
+
+# Get Command Line Arguments
+try:
+    opts, args = getopt.getopt(sys.argv[1:], "H:V:C:c:w:", ["hostname=", "version=", "community="])
+except getopt.GetoptError as err:
+    print err
+    usage()
+    sys.exit(3)
+
+for opt, arg in opts:
+    if opt in ('-H', '--hostname'):
+        hostname = arg
+    elif opt in ('-V', '--version'):
+        version = arg
+    elif opt in ('-C', '--community'):
+        community = arg
+    elif opt in ('-w'):
+        warning = int(arg)
+    elif opt in ('-c'):
+        critical = int(arg)
+    else:
+        usage()
+        sys.exit(3)
+
+# Command Line Argument tests
+if not hostname:
+    print "No hostname specified"
+    usage()
+    sys.exit(3)
+
+tmpfile = '/tmp/check_brocade_port_err_' + hostname + '_.pkl'
+
+class fcport:
+	def __init__(self, index):
+		self.index = str(index)
+		self.name = 0 
+	def getC3discards(self):
+		var = netsnmp.Varbind(oidC3discards + '.' + self.index)
+		self.C3discards = netsnmp.snmpget(var, Version=int(version), DestHost=hostname, Community=community)[0]
+
+	def getB2BNoCredits(self):
+		var = netsnmp.Varbind(oidB2BNoCredits + '.' + self.index)
+		self.B2BNoCredits = netsnmp.snmpget(var, Version=int(version), DestHost=hostname, Community=community)[0]
+
+	def getName(self):
+		var = netsnmp.Varbind(oidName + '.' + self.index)
+		self.name = netsnmp.snmpget(var, Version=int(version), DestHost=hostname, Community=community)[0]
+
+
+# Load old dictionary from pickle file
+
+if os.path.isfile(tmpfile):
+	with open (tmpfile, 'rb') as input:
+		olddict = pickle.load(input)
+		if 'timestamp' in olddict.keys():
+			timedelta = datetime.now() - olddict['timestamp']
+else:
+	olddict = {}
+
+var = netsnmp.Varbind(oidIndex)
+session = netsnmp.snmpwalk(var, Version=int(version), DestHost=hostname, Community=community)
+for obj in session:
+	portdict[obj] = fcport(obj)
+
+for v in portdict.itervalues():
+	v.getC3discards()
+	v.getB2BNoCredits()
+
+
+# No processing if the port has no errors:
+
+	if int(v.C3discards) + int(v.B2BNoCredits):
+
+
+# Error identification
+
+		v.getName()
+		if not v.index in olddict.keys():
+			exitStatus = exitStatus + v.name + " is is no longer error-free\n"
+			olddict[v.index] = fcport(v.index)
+			olddict[v.index].C3discards = 0
+			olddict[v.index].B2BNoCredits = 0
+
+		v.c3diff = int(v.C3discards) - int(olddict[v.index].C3discards)
+		v.b2bdiff = int(v.B2BNoCredits) - int(olddict[v.index].B2BNoCredits)
+		
+		if (v.c3diff > warning) or (v.b2bdiff > warning):
+			if (v.c3diff > critical) or (v.b2bdiff > critical):
+				critList.append(v)
+			else:
+				warnList.append(v)
+			
+# Save objects to temp file
+
+
+portdict['timestamp'] = datetime.now()
+
+with open (tmpfile, 'wb') as pickleout:
+	pickle.dump(portdict, pickleout, pickle.HIGHEST_PROTOCOL)
+
+
+# Nagios exit logic
+
+if len(critList) > 0:
+    exitCode = 2
+elif len(warnList) > 0:
+    exitCode = 1
+else:
+    exitCode = 0
+
+exitStatus = ""
+if timedelta:
+	exitStatus = exitStatus + "The time difference between checks is " + str(timedelta.seconds) + " seconds.\n"
+else:
+	exitStatus = exitStatus + "This is the first iteration of the port check.\n"
+if warnList or critList:
+    if warnList:
+	for p in warnList:
+		if p.c3diff:
+			exitStatus = exitStatus + p.name + " had " + str(p.c3diff) + " new Class 3 discards\n"
+		if p.b2bdiff:
+			exitStatus = exitStatus + p.name + " had " + str(p.b2bdiff) + " new B2B Credit Zero errors\n"
+    if critList:
+	for p in critList:
+		if p.c3diff:
+			exitStatus = exitStatus + p.name + " had " + str(p.c3diff) + " new Class 3 discards\n"
+		if p.b2bdiff:
+			exitStatus = exitStatus + p.name + " had " + str(p.b2bdiff) + " new B2B Credit Zero errors\n"
+
+else:
+	exitStatus = exitStatus + "no ports with enough new errors that it's worth mentioning."
+
+print exitStatus
+sys.exit(exitCode)