04-01-2012 03:29 PM - edited 03-04-2019 03:52 PM
Hi All
,, Actually I have problem in OER configuration .. Setup is I have single router acting as master controller and border router at same time , and this router is connected to two ISP routers .... The problem that load balancing is not hapenning even if the link utilization has exceed the configured percentage .. It still sending and revieving from one link only ... See below configuration it might be helpful .. and thanks in advance ..
R1#sh running-config
Building configuration...
Current configuration : 2633 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
logging buffered 4096 debugging
!
no aaa new-model
!
resource policy
!
memory-size iomem 5
!
!
ip cef
no ip domain lookup
!
!
ip sla monitor 1
type echo protocol ipIcmpEcho 10.82.56.1 source-interface Loopback0
threshold 1
frequency 5
!
!
!
key chain key1
key 1
key-string oer
!
!
oer master
policy-rules cisco
max-range-utilization percent 2
!
border 10.99.99.99 key-chain key1
interface FastEthernet1/0 internal
interface Serial0/1 external
max-xmit-utilization percentage 5
interface Serial0/0 external
max-xmit-utilization percentage 2
!
learn
throughput
periodic-interval 0
monitor-period 1
aggregation-type bgp
backoff 90 90
mode route metric bgp local-pref 222
mode select-exit best
resolve range priority 1
resolve utilization priority 2 variance 1
!
oer border
logging
local Loopback0
master 10.99.99.99 key-chain key1
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 10.99.99.99 255.255.255.255
!
interface Serial0/0
bandwidth 90
ip address 10.11.12.1 255.255.255.0
load-interval 30
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/1
bandwidth 90
ip address 10.11.14.1 255.255.255.0
load-interval 30
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
no dce-terminal-timing-enable
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
no dce-terminal-timing-enable
!
interface FastEthernet1/0
ip address 10.222.32.2 255.255.255.0
ip flow ingress
duplex auto
speed auto
!
interface FastEthernet2/0
no ip address
shutdown
duplex auto
speed auto
!
router ospf 1
log-adjacency-changes
redistribute bgp 650 subnets
network 10.11.12.0 0.0.0.255 area 0
network 10.11.14.0 0.0.0.255 area 0
network 10.222.32.0 0.0.0.255 area 0
!
router bgp 650
no synchronization
bgp log-neighbor-changes
redistribute connected
redistribute ospf 1
neighbor 10.11.12.2 remote-as 999
neighbor 10.11.14.2 remote-as 999
maximum-paths 2
no auto-summary
!
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
oer-map cisco 1
set mode select-exit best
!
oer-map OEr 10
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
login
!
!
end
R1#
04-01-2012 03:32 PM
Result of #show oer master :
R1#sh oer master
OER state: ENABLED and ACTIVE
Conn Status: SUCCESS, PORT: 3949
Number of Border routers: 1
Number of Exits: 2
Number of monitored prefixes: 0 (max 5000)
Max prefixes: total 5000 learn 2500
Prefix count: total 0, learn 0, cfg 0
Border Status UP/DOWN AuthFail
10.99.99.99 ACTIVE UP 00:19:07 0
Global Settings:
max-range-utilization percent 2
mode route metric bgp local-pref 222
mode route metric static tag 5000
trace probe delay 1000
no logging
Default Policy Settings:
backoff 90 90 90
delay relative 50
holddown 300
periodic 0
mode route observe
mode monitor both
mode select-exit best
loss relative 10
unreachable relative 50
resolve range priority 1 variance 0
resolve utilization priority 2 variance 1
resolve delay priority 11 variance 20
Learn Settings:
current state : STARTED
time remaining in current state : 101 seconds
throughput
no delay
no protocol
monitor-period 1
periodic-interval 0
aggregation-type bgp
prefixes 100
expire after time 720
R1#
04-01-2012 04:00 PM
If the logging enabled and you go over the link utilization specified percentage do you see any log saying OOP out of policy ?
In other word is the router detecting out of policy situation ?
Sent from Cisco Technical Support iPhone App
04-01-2012 08:58 PM
Hi,
Can you past the output of "show oer master traffic-class" ?
Thanks
04-01-2012 09:51 PM
See this below logs while pinging high packet size ..
*Mar 1 01:21:59.583: %OER_MC-5-NOTICE: Range OOP BR 10.99.99.99, i/f Se0/0, percent 3
*Mar 1 01:21:59.583: %OER_MC-5-NOTICE: Load OOP BR 10.99.99.99, i/f Se0/0, load 3 policy 1
*Mar 1 01:21:59.583: %OER_MC-5-NOTICE: Exit 10.99.99.99 intf Se0/0 OOP, Tx BW 3, Rx BW 3, Tx Load 3, Rx Load 3
R1#
*Mar 1 01:22:19.851: %OER_MC-5-NOTICE: Range OOP BR 10.99.99.99, i/f Se0/0, percent 6
*Mar 1 01:22:19.855: %OER_MC-5-NOTICE: Load OOP BR 10.99.99.99, i/f Se0/0, load 6 policy 1
*Mar 1 01:22:19.859: %OER_MC-5-NOTICE: Exit 10.99.99.99 intf Se0/0 OOP, Tx BW 6, Rx BW 6, Tx Load 6, Rx Load 6
R1#
*Mar 1 01:22:23.099: %OER_MC-5-NOTICE: Discovered Exit for prefix 10.82.51.1/32, BR 10.99.99.99, i/f Se0/0
R1#
*Mar 1 01:22:40.531: %OER_MC-5-NOTICE: Range OOP BR 10.99.99.99, i/f Se0/0, percent 6
*Mar 1 01:22:40.531: %OER_MC-5-NOTICE: Load OOP BR 10.99.99.99, i/f Se0/0, load 6 policy 1
*Mar 1 01:22:40.531: %OER_MC-5-NOTICE: Exit 10.99.99.99 intf Se0/0 OOP, Tx BW 6, Rx BW 6, Tx Load 6, Rx Load 6
R1#
*Mar 1 01:22:57.087: %OER_BR-5-NOTICE: Prefix Learning STOPPED
*Mar 1 01:22:57.099: %OER_MC-5-NOTICE: Prefix Learning WRITING DATA
*Mar 1 01:22:57.259: %OER_MC-5-NOTICE: Prefix Learning STARTED
*Mar 1 01:22:57.471: %OER_BR-5-NOTICE: Prefix Learning STARTED
R1#
R1#
*Mar 1 01:23:26.443: %OER_MC-5-NOTICE: NO route change, Observe mode, 10.82.51.1/32, BR 10.99.99.99, i/f Se0/1, Reason Range, OOP reason Range
Note :: show oer master traffic-class is not supported in my platform .. I have below command which indicate for policy setting :
R1#sh oer master policy
Default Policy Settings:
backoff 90 90 90
delay relative 50
holddown 300
periodic 0
mode route observe
mode monitor both
mode select-exit best
loss relative 10
unreachable relative 50
resolve range priority 1 variance 0
resolve utilization priority 2 variance 1
resolve delay priority 11 variance 20
oer-map cisco 1
match ip prefix-lists:
backoff 90 90 90
delay relative 50
holddown 300
periodic 0
mode route observe
mode monitor both
*mode select-exit best
loss relative 10
unreachable relative 50
resolve range priority 1 variance 0
resolve utilization priority 2 variance 1
resolve delay priority 11 variance 20
* Overrides Default Policy Setting
R1#
04-02-2012 08:28 PM
Please .. need a reply on this ..
Thank you ..
04-19-2012 01:36 PM
based on your Logs and config, i see that your mode route is "OBSERVE". Change it to "mode route control"
oer master
mode route control
HTH.
Thanks-
Gerard
04-20-2012 08:41 AM
Thank you Gerard for your reply ... I'm still facing issue that is not getting balanced .. now traffic should move from se1/1 to se1/2 .. but i don't now where is the problem .. See latest log and some modification rectified .
*Apr 20 18:36:32.367: OER MC EXIT: 10.99.99.99, intf Se1/2 INPOLICY
*Apr 20 18:36:32.371: %OER_MC-5-NOTICE: Load OOP BR 10.99.99.99, i/f Se1/1, load 197 policy 67
*Apr 20 18:36:32.375: %OER_MC-5-NOTICE: Exit 10.99.99.99 intf Se1/1 OOP, Tx BW 197, Rx BW 196, Tx Load 96, Rx Load 95
R1#
*Apr 20 18:36:32.379: OER MC EXIT: 90 kbps should be moved from 10.99.99.99, intf Se1/1
R1#
R1#
*Apr 20 18:36:38.759: %OER_MC-5-NOTICE: Uncontrol prefix 10.82.51.1/32, Couldn't find the best exit
*Apr 20 18:36:38.763: %OER_MC-5-NOTICE: Uncontrol prefix 10.82.51.1/32, Couldn't choose exit in prefix timeout
R1#
*Apr 20 18:36:44.111: %OER_MC-5-NOTICE: Discovered Exit for prefix 10.82.51.1/32, BR 10.99.99.99, i/f Se1/1
R1#
Global Settings:
max-range-utilization percent 40
mode route metric bgp local-pref 222
mode route metric static tag 5000
trace probe delay 1000
logging
Default Policy Settings:
backoff 90 90 90
delay relative 50
holddown 300
periodic 180
mode route control
mode monitor passive
mode select-exit best
loss relative 10
unreachable relative 50
resolve range priority 1 variance 0
resolve utilization priority 2 variance 1
resolve delay priority 11 variance 20
Learn Settings:
current state : STARTED
time remaining in current state : 87 seconds
throughput
delay
no protocol
monitor-period 1
periodic-interval 0
aggregation-type bgp
prefixes 100
expire after time 720
key chain key1
key 1
key-string oer
oer master
policy-rules cisco
max-range-utilization percent 40
logging
!
border 10.99.99.99 key-chain key1
interface FastEthernet0/0 internal
interface Serial1/1 external
interface Serial1/2 external
!
learn
throughput
delay
periodic-interval 0
monitor-period 1
aggregation-type bgp
backoff 90 90
mode route control
mode monitor passive
mode route metric bgp local-pref 222
mode select-exit best
periodic 180
resolve range priority 1
resolve utilization priority 2 variance 1
!
oer border
logging
local Loopback0
master 10.99.99.99 key-chain key1
!
oer-map cisco 1
set mode select-exit best
04-20-2012 09:00 AM
Try this .. you may need to learn your Inside Prefs..either manual or dynamic method.
Dynamic:
oer master
learn
inside bgp
no aggregation-type bgp
oer-map cisco 1
match oer learn inside
Manual:
oer master
policy-rule cisco
ip prefix-list MYNET permit 4.5.6.0/24 (inside network for example)
oer-map cisco 1
ip address prefix-list MYNET inside
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