From: Mike Kraus \(mikraus\) (mikraus@cisco.com)
Date: Sun Jul 01 2007 - 09:25:36 ART
I think your lifetime is too short. Lifetime is in msec. So, a
lifetime of 5, means your Frame-Relay RTT needed to be 5ms. (Unlikely,
depending on your configuration). Back-to-back with 2Mbps clock rate,
I'm at 16ms.
Looks like your config might have been on an older platform, but here's
my config that I mocked up that worked on 12.4T (ip sla commands, rather
than rtr).
Here's the config I did that worked:
Receiver Router (R5):
+++++++
Ip sla responder frame-relay all
R5(config)#do sho ip sla respo
IP SLAs Responder is: Disabled
Frame Relay Responder:
Enabled on every Interface and DLCI
Sender router (R4):
++++++
Ip sla 1
frame-relay interface serial0/0 dlci405
timeout 100
frequency 1
Ip sla schedule 1 start-time now
R4#sho ip sla statistics
Round Trip Time (RTT) for Index 1
Latest RTT: 16 milliseconds
Latest operation start time: *16:40:48.496 UTC Sat Jun 30 2007
Latest operation return code: OK
Number of successes: 454
Number of failures: 0
Operation time to live: 3107 sec
On R5, I shut down the WAN interface:
R5(config)#int se0/0
R5(config-if)#shut
Then I looked at stats again on R4:
R4#sho ip sla statistics
Round Trip Time (RTT) for Index 1
Latest RTT: Unknown
Latest operation return code: Unknown
Latest operation start time: Unknown
Number of successes: 875
Number of failures: 0
Operation time to live: 2636 sec
Then I turned back up the interface on R5:
R5(config-if)#no shut
And R4 showed success again:
R4#sho ip sla statistics
Round Trip Time (RTT) for Index 1
Latest RTT: 17 milliseconds
Latest operation start time: *16:50:09.495 UTC Sat Jun 30 2007
Latest operation return code: OK
Number of successes: 890
Number of failures: 0
Operation time to live: 2546 sec
Then, tied it to a track:
R4(config)#track 1 rtr 1 state
R4(config-track)#do sho track 1
Track 1
Response Time Reporter 1 state
State is Up
6 changes, last change 00:00:09
Latest operation return code: OK
Latest RTT (millisecs) 16
Here's a command reference page for it in 12.3T, didn't see it in 12.4
for some reason:
http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_command_
reference_chapter09186a00801a80a0.html#wp1091786
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Antonio Soares
Sent: Saturday, June 30, 2007 10:10 PM
To: ccielab@groupstudy.com
Subject: IP SLA Frame-Relay
Hello group,
I'm having problems with IP SLA Type Frame-Relay operations. I have
these
configs:
Sender Router:
++++++++++++++
!
ip sla monitor 1
type frame-Relay interface Serial1/0 dlci 101 timeout 5 frequency 1
ip sla monitor schedule 1 life forever start-time now !
track 1 rtr 1
!
Receiver Router:
++++++++++++++++
!
rtr responder
!
There are no problems with the frame-relay connection between the
routers.
And all i get in the sender router is:
Rack12R6#sh track 1
Track 1
Response Time Reporter 1 state
State is Down
3 changes, last change 00:07:37
Latest operation return code: Unknown
Tracked by:
HSRP FastEthernet0/0.263 0
Rack12R6#
And i don't find this feature documented anywhere even in the 12.4T
command reference.
Any help would be appreciated.
Thanks,
Antonio
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