
Wierd PfR observations with active probes
below are my active probes configured on the master
active-probe tcp-conn 150.1.6.6 target-port 1026 <<<<<R6
active-probe tcp-conn 150.1.1.1 target-port 1111 <<<<<<<R1
active-probe tcp-conn 150.1.4.4 target-port 1024 <<<<<R4
-----------------------------------------------
R5 = Master
Rack1R5#show ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 51 <<<<<<<<<<<<<<goes to 150.1.1.1 <sh IP sla configuration>
Type of operation: tcp-connect
Latest RTT: 12 milliseconds
Latest operation start time: *17:32:51.118 UTC Tue Nov 29 2011
Latest operation return code: OK
Number of successes: 2
Number of failures: 0
Operation time to live: Forever
IPSLA operation id: 52
Type of operation: tcp-connect
Latest RTT: 0 milliseconds
Latest operation start time: *17:32:55.674 UTC Tue Nov 29 2011
Latest operation return code: Socket connect error <<<<<150.1.4.4
Number of successes: 0
Number of failures: 2
Operation time to live: Forever
IPSLA operation id: 53
Type of operation: tcp-connect
Latest RTT: 0 milliseconds
Latest operation start time: *17:32:55.678 UTC Tue Nov 29 2011
Latest operation return code: Socket connect error <<<<<150.1.6.6
Number of successes: 0
Number of failures: 2
Operation time to live: Forever
-------------------------------------------------------------------------------------------
responder config on each target device
Rack1R1#sh run | i responder
ip sla monitor responder type tcpConnect ipaddress 150.1.8.8 port 1111
Rack1R6#sh run | i responder
ip sla responder tcp-connect ipaddress 150.1.8.8 port 1026
Rack1R4#sh run | i responder
ip sla responder tcp-connect ipaddress 150.1.8.8 port 1024
--------------------------------------------------------------------------------------------------
check tcp brief
Rack1R5#sh tcp brief
TCB Local Address Foreign Address (state)
6538FCC4 150.1.5.5.50450 150.1.5.5.3949 ESTAB
65D0C2B0 155.1.0.5.48566 155.1.23.3.179 ESTAB
68FE0374 150.1.5.5.30081 150.1.1.1.1111 TIMEWAIT <<<<R1 is here but R4 and R6 are NOT
669F46EC 150.1.5.5.3949 150.1.2.2.24382 ESTAB
66BD1CD4 155.1.58.5.179 155.1.108.10.51903 ESTAB
68FA9C90 150.1.5.5.3949 150.1.3.3.53179 ESTAB
65B7AC18 155.1.58.5.57403 155.1.58.8.179 ESTAB
66C02840 155.1.45.5.179 155.1.45.4.39152 ESTAB
66DD1994 155.1.0.5.179 155.1.0.2.18105 ESTAB
65390300 150.1.5.5.3949 150.1.5.5.50450 ESTAB
----------------------------------------------------------
confirmed by active-probes checked on master
Rack1R5#sh oer mas active-probes
OER Master Controller active-probes
Border = Border Router running this Probe
State = Un/Assigned to a Prefix
Prefix = Probe is assigned to this Prefix
Type = Probe Type
Target = Target Address
TPort = Target Port
How = Was the probe Learned or Configured
N - Not applicable
The following Probes exist:
State Prefix Type Target TPort How Codec
Assigned 150.1.6.0/24 tcp-conn 150.1.6.6 1026 Cfgd N
Assigned 150.1.1.0/24 tcp-conn 150.1.1.1 1111 Cfgd N
Assigned 150.1.6.0/24 echo 150.1.6.6 N Lrnd N
Assigned 150.1.1.0/24 echo 150.1.1.1 N Lrnd N
Unassigned tcp-conn 150.1.4.4 1024 Cfgd N
The following Probes are running:
Border State Prefix Type Target TPort
150.1.3.3 ACTIVE 150.1.1.0/24 tcp-conn 150.1.1.1 1111
150.1.3.3 ACTIVE 150.1.1.0/24 tcp-conn 150.1.1.1 1111
150.1.5.5 ACTIVE 150.1.1.0/24 tcp-conn 150.1.1.1 1111
*** all other configs are fine...trust me on that one...
------------------------------------------------------------------------------
thing is at one point i SAW active-probes running from .6 and .4..however the TCP brief showed nothing and ip sla stats showed a socket connect error....
i guess what keeps bothering me that, USING THE SAME SET OF COMMANDS i configure active probes for R1 R4 and R6...however R1s TCP-connect shows up under the show tcp brief command and the show ip sla statiastics command but not the other 2....WHY?
<EDIT..JUST CAUGHT IT>>>
look below....there is an active probe running for target 150.1.4.4 BUT IT DOES NOT SHOW IN THE TCP BRIEF?????*****
proof that al else is configured fine.....
Rack1R5#sh oer master prefix
OER Prefix Statistics:
Pas - Passive, Act - Active, S - Short term, L - Long term, Dly - Delay (ms),
P - Percentage below threshold, Jit - Jitter (ms),
MOS - Mean Opinion Score
Los - Packet Loss (packets-per-million), Un - Unreachable (flows-per-million),
E - Egress, I - Ingress, Bw - Bandwidth (kbps), N - Not applicable
U - unknown, * - uncontrolled, + - control more specific, @ - active probe all
# - Prefix monitor mode is Special, & - Blackholed Prefix
% - Force Next-Hop, ^ - Prefix is denied
Prefix State Time Curr BR CurrI/F Protocol
PasSDly PasLDly PasSUn PasLUn PasSLos PasLLos
ActSDly ActLDly ActSUn ActLUn EBw IBw
ActSJit ActPMOS ActSLos ActLLos
--------------------------------------------------------------------------------
112.0.0.0/8 DEFAULT* 29 U U U
150.1.1.0/24 DEFAULT* @2 150.1.5.5 Se0/1/0 U
U U 0 0 0 0
42 27 0 0 10 4
N N
150.1.4.0/24 DEFAULT* @76 U U U
150.1.6.0/24 DEFAULT* 1800 150.1.5.5 Se0/1/0 U
U U 0 0 0 0
U U 1000000 1000000 1 1
N N
Rack1R5#
Rack1R5#show oer master active-probes
OER Master Controller active-probes
Border = Border Router running this Probe
State = Un/Assigned to a Prefix
Prefix = Probe is assigned to this Prefix
Type = Probe Type
Target = Target Address
TPort = Target Port
How = Was the probe Learned or Configured
N - Not applicable
The following Probes exist:
State Prefix Type Target TPort How Codec
Assigned 150.1.4.0/24 tcp-conn 150.1.4.4 1024 Cfgd N
Assigned 150.1.4.0/24 echo 150.1.4.4 N Lrnd N
Assigned 150.1.6.0/24 tcp-conn 150.1.6.6 1026 Cfgd N
Assigned 150.1.1.0/24 tcp-conn 150.1.1.1 1111 Cfgd N
Assigned 150.1.6.0/24 echo 150.1.6.6 N Lrnd N
Assigned 150.1.1.0/24 echo 150.1.1.1 N Lrnd N
The following Probes are running:
Border State Prefix Type Target TPort
150.1.3.3 ACTIVE 150.1.1.0/24 tcp-conn 150.1.1.1 1111
150.1.3.3 ACTIVE 150.1.1.0/24 tcp-conn 150.1.1.1 1111
150.1.5.5 ACTIVE 150.1.1.0/24 tcp-conn 150.1.1.1 1111
150.1.5.5 ACTIVE 150.1.4.0/24 tcp-conn 150.1.4.4 1024
150.1.3.3 ACTIVE 150.1.4.0/24 tcp-conn 150.1.4.4 1024
150.1.3.3 ACTIVE 150.1.4.0/24 tcp-conn 150.1.4.4 1024
--------
Rack1R5#show tcp brief <<<<<<you dont see port 1024 anywhere....WHY???
TCB Local Address Foreign Address (state)
6538FCC4 150.1.5.5.50450 150.1.5.5.3949 ESTAB
65D0C2B0 155.1.0.5.48566 155.1.23.3.179 ESTAB
68FE0374 150.1.5.5.31343 150.1.1.1.1111 TIMEWAIT
669F46EC 150.1.5.5.3949 150.1.2.2.24382 ESTAB
66BD1CD4 155.1.58.5.179 155.1.108.10.51903 ESTAB
68FA9C90 150.1.5.5.3949 150.1.3.3.53179 ESTAB
65B7AC18 155.1.58.5.57403 155.1.58.8.179 ESTAB
66C02840 155.1.45.5.179 155.1.45.4.39152 ESTAB
66DD1994 155.1.0.5.179 155.1.0.2.18105 ESTAB
65390300 150.1.5.5.3949 150.1.5.5.50450 ESTAB