Re: easy OER conf that doesn't work

Thanks Brian.

So you are simply saying that since I'm using at least 128k (100%) bw, OER
won't move to a slower interface, where performance can be even worse.

So technically if I increase the bw from 64 to 128 OER will accept to use
the floating route?

But if I increase the bw from 64 to something faster than 128k, OER will,
by default, use the floating route, since the conditions are better.
Correct?
(seen this on your pfr vseminar)

thanks for your help

On Sat, Dec 22, 2012 at 3:11 PM, Brian Dennis <bdennis_at_ine.com> wrote:

> OER is doing what it's supposed to do. Let me break this down as if OER
> is not enabled and you are told to solve the problem manually. You have
> your two exit links. Both are T1's (Serial0/0 and Serial0/1) with one
> having twice the bandwidth of the other (Serial0/1 has 128k and Serial0/0
> has 64k as per your 'show oer master border detail' command). There is a
> single large flow (your ping from SW2) that is causing congestion on the
> high bandwidth link (Serial0/1). If you were tasked with solving this
> issue manually would there be any advantage to move that flow to the
> slower link over the current link it's on?
>
> So you're configuration appears to be correct but your testing methodology
> does not.
>
> Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/Voice)
> bdennis_at_ine.com
>
> INE, Inc.
> http://www.INE.com
>
>
>
>
> On 12/21/12 1:29 AM, "ccie99999" <ccie99999_at_gmail.com> wrote:
>
> >adding some details here:
> >
> >when I ping I got this result from OER
> >
> >Exit 150.1.5.5 intf Se0/1 OOP, Tx BW 128, Rx BW 128, Tx Load 100, Rx Load
> >100
> >
> >means I'm using all bw!
> >
> >in my configuration I see I'm 'learning' throughput
> >
> >learn
> > throughput
> > periodic-interval 0
> > monitor-period 1
> > no max range receive
> > mode route control
> > mode monitor passive
> > mode select-exit best
> > no resolve delay
> > no resolve utilization
> >
> >in the other significant part of configuration I see this:
> >
> >oer master
> > logging
> > !
> > border 150.1.5.5 key-chain OER
> > interface Serial0/0 external
> > interface FastEthernet0/0 internal
> > interface Serial0/1 external
> > max-xmit-utilization percentage 66
> > !
> >
> >then.. interface is overloaded and oer log says so
> >learn is working and interface se0/1 goes OOP
> >
> >I'm not using any other specific configuration and It's first time I work
> >on oer.
> >I went through INE's blog post about pfr
> >
> http://blog.ine.com/2011/11/01/cisco-performance-routing-pfr-optimized-edg
> >e-routing-oer/and
> >also the wonderful vseminar (only part part1and2) but still don't get
> >why the apply policy phase is not working.
> >
> >thanks for your help.
> >
> >
> >
> >---------- Forwarded message ----------
> >From: ccie99999 <ccie99999_at_gmail.com>
> >Date: Thu, Dec 20, 2012 at 1:53 PM
> >Subject: easy OER conf that doesn't work
> >To: Cisco certification <ccielab_at_groupstudy.com>
> >
> >
> >guys,
> >
> >I think this is easy but I don't see why this doesn't work for me :(
> >
> >topology R4 - R5 - SW2
> >
> >R5 to R4 has se0/0 and se0/1 and R5 is MC and BR
> >
> >SW2 is just a client to ping 150.1.4.4 (R4 Loop 0) size 1500 rep 99999999
> >timeout 0
> >
> >problem is: as soon as I ping from SW2 to R4 I see interfaces that reaches
> >max bw.
> >but it never switch to se0/0 that is not overloaded at all.
> >
> >Strange thing is that I don't see the "Other BR " in the logs..
> >
> >and I don't see the switchover to the other external interface despite
> >there is the floating routes.
> >
> >and it's not clear to me how R4 should see R5 if I'm working only with
> >static routes. (can I use asymmetric routing?)
> >and In case can I use another igp on the whole topology w/o any particular
> >attention?
> >
> >
> >xxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> >routing :
> >
> >Rack1R5#sh run | i route
> >
> >ip route 0.0.0.0 0.0.0.0 155.1.45.4
> >ip route 0.0.0.0 0.0.0.0 155.1.0.4 5
> >
> >xxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> >interfaces
> >
> >Rack1R5#show ip int brief
> >
> >FastEthernet0/0 155.1.58.5 YES NVRAM up
> >up
> >Serial0/0 155.1.0.5 YES NVRAM up
> >up
> >Serial0/1 155.1.45.5 YES NVRAM up
> >up
> >
> >xxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> >OER
> >
> >oer master
> > logging
> > !
> > border 150.1.5.5 key-chain OER
> > interface Serial0/1 external
> > max-xmit-utilization percentage 66
> > interface FastEthernet0/0 internal
> > interface Serial0/0 external
> > !
> > learn
> > throughput
> > periodic-interval 0
> > monitor-period 1
> > no max range receive
> > mode route control
> > mode select-exit best
> > !
> >oer border
> > local Loopback0
> > master 150.1.5.5 key-chain OER
> >
> >xxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> >Rack1R5# show oer master
> >
> >OER state: ENABLED and ACTIVE
> > Conn Status: SUCCESS, PORT: 3949
> > Version: 2.1
> > Number of Border routers: 1
> > Number of Exits: 2
> > Number of monitored prefixes: 2 (max 5000)
> > Max prefixes: total 5000 learn 2500
> > Prefix count: total 2, learn 2, cfg 0
> >
> >Border Status UP/DOWN AuthFail Version
> >150.1.5.5 ACTIVE UP 01:28:45 0 2.1
> >
> >Global Settings:
> > max-range-utilization percent 20 recv 0
> > mode route metric bgp local-pref 5000
> > mode route metric static tag 5000
> > trace probe delay 1000
> > logging
> >
> >Default Policy Settings:
> > backoff 300 3000 300
> > delay relative 50
> > holddown 300
> > periodic 0
> > probe frequency 56
> > mode route control
> > mode monitor both
> > mode select-exit best
> > loss relative 10
> > jitter threshold 20
> > mos threshold 3.60 percent 30
> > unreachable relative 50
> > resolve delay priority 11 variance 20
> > resolve utilization priority 12 variance 20
> >
> >Learn Settings:
> > current state : STARTED
> > time remaining in current state : 81 seconds
> > throughput
> > delay
> > no inside bgp
> > no protocol
> > monitor-period 1
> > periodic-interval 0
> > aggregation-type prefix-length 24
> > prefixes 100
> > expire after time 720
> >
> >
> >xxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> >logs
> >
> >
> >Rack1R5#show oer master border deta
> >Border Status UP/DOWN AuthFail Version
> >150.1.5.5 ACTIVE UP 01:29:45 0 2.1
> > Se0/1 EXTERNAL UP
> > Fa0/0 INTERNAL UP
> > Se0/0 EXTERNAL UP
> >
> > External Capacity Max BW BW Used Load Status
> >Exit Id
> > Interface (kbps) (kbps) (kbps)
> >(%)
> > --------- -------- ------ ------- -------
> >------ ------
> > Se0/1 Tx 128 84 128 100
> >UP 7
> > Rx 128 128 100
> > Se0/0 Tx 64 48 0 0
> >UP 6
> > Rx 64 0 0
> >
> >xxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> >logs
> >
> >%OER_MC-5-NOTICE: Range OOP BR 150.1.5.5, i/f Se0/1, percent 100
> >%OER_MC-5-NOTICE: Load OOP BR 150.1.5.5, i/f Se0/1, load 0 policy 128
> >%OER_MC-5-NOTICE: Exit 150.1.5.5 intf Se0/1 OOP, Tx BW 128, Rx BW 128, Tx
> >Load 100, Rx Load 100
> >Rack1R5#d
> >OER MC PFX 4.4.4.0/24: Check PASS REL delay: delay 0, policy 50%, notify
> >TRUE
> >OER MC PFX 4.4.4.0/24: Check PASS REL delay: delay 0, policy 50%, notify
> >TRUE
> >Rack1R5#d
> >OER MC PROCESS: Main msg type 2, ptr 673061D0, value 0
> >Rack1R5#d
> >%OER_MC-5-NOTICE: Range OOP BR 150.1.5.5, i/f Se0/1, percent 100
> >%OER_MC-5-NOTICE: Load OOP BR 150.1.5.5, i/f Se0/1, load 0 policy 128
> >%OER_MC-5-NOTICE: Exit 150.1.5.5 intf Se0/1 OOP, Tx BW 128, Rx BW 128, Tx
> >Load 100, Rx Load 100
> >Rack1R5#d
> >OER MC LEARN: OER TTC: 150.1.5.5 reported 1 throughput learned prefixes
> >OER MC LEARN: OER TTC: 150.1.5.5 reported 0 delay learned prefixes
> >OER MC LEARN: Received stats from all borders so updating DB
> >OER MC LEARN: OER TTC: State change, new WRITING DATA, old STARTED, reason
> >Updating DB
> >%OER_MC-5-NOTICE: Prefix Learning WRITING DATA
> >OER MC LEARN: OER TTC: State change, new SLEEP, old WRITING DATA, reason
> >Sleep state
> >OER MC LEARN: TTC Periodic timer expired
> >OER MC LEARN: OER TTC: Not one learn list is enabled
> >OER MC LEARN: OER TTC: State change, new STARTED, old SLEEP, reason At
> >least one BR started
> >%OER_MC-5-NOTICE: Prefix Learning STARTED
> >Rack1R5#d
> >OER MC LEARN: MC received BR TT status as enabled
> >Rack1R5#d
> >OER MC PROCESS: Main msg type 36, ptr 0, value 0
> >Rack1R5#d
> >OER MC PFX 4.4.4.0/24: Check PASS REL delay: delay 0, policy 50%, notify
> >TRUE
> >OER MC PFX 4.4.4.0/24: Check PASS REL delay: delay 0, policy 50%, notify
> >TRUE
> >OER MC PROCESS: Main msg type 2, ptr 673061D0, value 0
> >Rack1R5#d
> >%OER_MC-5-NOTICE: Range OOP BR 150.1.5.5, i/f Se0/1, percent 100
> >%OER_MC-5-NOTICE: Load OOP BR 150.1.5.5, i/f Se0/1, load 0 policy 128
> >%OER_MC-5-NOTICE: Exit 150.1.5.5 intf Se0/1 OOP, Tx BW 128, Rx BW 128, Tx
> >Load 100, Rx Load 100
> >
> >xxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> >thanks to who can help
> >
> >
> >--
> >@ccie99999
> >
> >
> >
> >--
> >@ccie99999
> >
> >
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>

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@ccie99999
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