IP SLA

IP SLAs with SNMP traps


(1)
<< Settings >>
 ip sla reaction-configuration

<< debug snmp packet & console messages >>

*Mar  1 01:40:49.727: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:40:49.727: SNMP: V1 Trap, ent rttMonNotificationsPrefix, addr 10.10.128.129, gentrap 6, spectrap 1
 rttMonCtrlAdminTag.1 = 
 rttMonHistoryCollectionAddress.1 = 0A 0A  07 07   
 rttMonCtrlOperConnectionLostOccurred.1 = 1
*Mar  1 01:40:49.743: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:40:49.743: SNMP: V1 Trap, ent rttMonNotificationsPrefix, addr 10.10.128.129, gentrap 6, spectrap 5
 rttMonCtrlAdminTag.1 = 
 rttMonHistoryCollectionAddress.1 = 0A 0A  07 07   
 rttMonCtrl.19.1.2.1 = 8
 rttMonCtrl.19.1.10.1 = 1
 rttMonCtrl.19.1.9.1 = 1
 rttMonCtrl.19.1.5.1 = 0
 rttMonCtrl.19.1.6.1 = 0
SW2#
 rttMonEchoAdminEntry.33.1 = 00 00  00 00  
*Mar  1 01:40:49.979: SNMP: Packet sent via UDP to 10.10.128.130
*Mar  1 01:40:50.235: SNMP: Packet sent via UDP to 10.10.128.130

(2)
<< Settings >>
 ip sla reaction-configuration
 snmp-server enable traps ipsla

<< debug snmp packet & console messages >>
*Mar  1 01:37:34.715: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:37:34.719: SNMP: V1 Trap, ent rttMonNotificationsPrefix, addr 10.10.128.129, gentrap 6, spectrap 1
 rttMonCtrlAdminTag.1 = 
 rttMonHistoryCollectionAddress.1 = 0A 0A  07 07   
 rttMonCtrlOperConnectionLostOccurred.1 = 1
*Mar  1 01:37:34.731: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:37:34.731: SNMP: V1 Trap, ent rttMonNotificationsPrefix, addr 10.10.128.129, gentrap 6, spectrap 5
 rttMonCtrlAdminTag.1 = 
 rttMonHistoryCollectionAddress.1 = 0A 0A  07 07   
 rttMonCtrl.19.1.2.1 = 8
 rttMonCtrl.19.1.10.1 = 1
 rttMonCtrl.19.1.9.1 = 1
 rttMonCtrl.19.1.5.1 = 0
 rttMonCtrl.19.1.6.1 = 0
 rttMonEchoAdminEntry.33.1 = 00 00  00 00  
*Mar  1 01:37:34.971: SNMP: Packet sent via UDP to 10.10.128.130
*Mar  1 01:37:35.227: SNMP: Packet sent via UDP to 10.10.128.130

<< Comparison & Result >>
snmp packets are same as condition (1).

(3)
<< Settings >>
 ip sla reaction-configuration
 ip sla logging traps

<< debug snmp packet & console messages >>
*Mar  1 01:45:04.687: %RTT-4-OPER_CLOSS: condition occurred, entry number = 1
*Mar  1 01:45:04.703: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:45:04.703: SNMP: V1 Trap, ent rttMonNotificationsPrefix, addr 10.10.128.129, gentrap 6, spectrap 1
 rttMonCtrlAdminTag.1 = 
 rttMonHistoryCollectionAddress.1 = 0A 0A  07 07   
 rttMonCtrlOperConnectionLostOccurred.1 = 1
*Mar  1 01:45:04.719: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:45:04.719: SNMP: V1 Trap, ent rttMonNotificationsPrefix, addr 10.10.128.129, gentrap 6, spectrap 5
 rttMonCtrlAdminTag.1 = 
 rttMonHistoryCollectionAddress.1 = 0A 0A  07 07   
 rttMonCtrl.19.1.2.1 = 8
 rttMonCtrl.19.1.10.1 = 1
 rttMonCtrl.19.1.9.1 = 1
 rttMonCtrl.19.1.5.1 = 0
 rttMonCtrl.19.1.6.1 = 0
 rttMonEchoAdminEntry.33.1 = 00 00  00 00  
*Mar  1 01:45:04.739: %RTT-3-IPSLATHRESHOLD: IP SLAs(1): Threshold Occurred for connectionLoss
SW2#
*Mar  1 01:45:04.955: SNMP: Packet sent via UDP to 10.10.128.130
*Mar  1 01:45:05.211: SNMP: Packet sent via UDP to 10.10.128.130

<< Comparison & Result >>
new 2 messages appear
*Mar  1 01:45:04.687: %RTT-4-OPER_CLOSS: condition occurred, entry number = 1
*Mar  1 01:45:04.739: %RTT-3-IPSLATHRESHOLD: IP SLAs(1): Threshold Occurred for connectionLoss

when it's recovered
*Mar  1 01:49:04.687: %RTT-4-OPER_CLOSS: condition cleared, entry number = 1   
*Mar  1 01:49:04.735: %RTT-3-IPSLATHRESHOLD: IP SLAs(1): Threshold Cleared for connectionLoss


(4)
<< Settings >>
 ip sla reaction-configuration
 snmp-server enable traps syslog

<< debug snmp packet & console messages >>
same as condition (2)

<< Comparison & Result >>
same as condition (2)

(5)
<< Settings >>
 ip sla reaction-configuration
 ip sla logging traps
 snmp-server enable traps syslog

** All of 3 commands above are required.



<< debug snmp packet & console messages >>
*Mar  1 01:55:04.687: %RTT-4-OPER_CLOSS: condition occurred, entry number = 1
*Mar  1 01:55:04.723: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:55:04.727: SNMP: V1 Trap, ent rttMonNotificationsPrefix, addr 10.10.128.129, gentrap 6, spectrap 1
 rttMonCtrlAdminTag.1 = 
 rttMonHistoryCollectionAddress.1 = 0A 0A  07 07   
 rttMonCtrlOperConnectionLostOccurred.1 = 1
*Mar  1 01:55:04.747: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:55:04.747: SNMP: V1 Trap, ent rttMonNotificationsPrefix, addr 10.10.128.129, gentrap 6, spectrap 5
 rttMonCtrlAdminTag.1 = 
 rttMonHistoryCollectionAddress.1 = 0A 0A  07 07   
 rttMonCtrl.19.1.2.1 = 8
 rttMonCtrl.19.1.10.1 = 1
 rttMonCtrl.19.1.9.1 = 1
 rttMonCtrl.19.1.5.1 = 0
 rttMonCtrl.19.1.6.1 = 0
 rttMonEchoAdminEntry.33.1 = 00 00  00 00  
*Mar  1 01:55:04.767: %RTT-3-IPSLATHRESHOLD: IP SLAs(1): Threshold Occurred for connectionLoss
*Mar  1 01:55:04.775: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:55:04.775: SNMP: V1 Trap, ent ciscoSyslogMIB.2, addr 10.10.128.129, gentrap 6, spectrap 1
 clogHistoryEntry.2.15 = RTT
 clogHistoryEntry.3.15 = 5
 clogHistoryEntry.4.15 = OPER_CLOSS
 clogHistoryEntry.5.15 = condition occurred, entry number = 1
 clogHistoryEntry.6.15 = 690469
*Mar  1 01:55:04.791: SNMP: Queuing packet to 10.10.128.130
*Mar  1 01:55:04.791: SNMP: V1 Trap, ent ciscoSyslogMIB.2, addr 10.10.128.129, gentrap 6, spectrap 1
 clogHistoryEntry.2.16 = RTT
 clogHistoryEntry.3.16 = 4
 clogHistoryEntry.4.16 = IPSLATHRESHOLD
 clogHistoryEntry.5.16 = IP SLAs(1): Threshold Occurred for connectionLoss
 clogHistoryEntry.6.16 = 690476
*Mar  1 01:55:04.979: SNMP: Packet sent via UDP to 10.10.128.130
*Mar  1 01:55:05.235: SNMP: Packet sent via UDP to 10.10.128.130
*Mar  1 01:55:05.491: SNMP: Packet sent via UDP to 10.10.128.130
*Mar  1 01:55:05.747: SNMP: Packet sent via UDP to 10.10.128.130


<< Comparison & Result >>
Configuration below at SW2 is required.

## SW2 (Trap sendor) ##
ip sla logging traps
ip sla 1
 tcp-connect 10.10.7.7 5000 source-ip 10.10.8.8
 tos 96
 timeout 1000
 threshold 3000
 frequency 15
ip sla reaction-configuration 1 react connectionLoss threshold-type consecutive 1 action-type trapOnly
ip sla schedule 1 start-time now
snmp-server enable traps syslog
snmp-server host 10.10.128.130 public

## SW1 (Trap Receiver) ##
ip sla responder
ip sla responder tcp-connect ipaddress 10.10.7.7 port 5000