RE: traffic delay insertion

From: Sergey Golovanov (sergey.golovanov@iementor.com)
Date: Wed Jan 24 2007 - 11:50:23 ART


Genius!

---------------------
Sergey Golovanov, CCIEx5 (R&S/Security/Voice/Service Provider/Storage)
"Please, don't ask me for my ccie #, there are reasons why I can't release it"
ieMentor Instructor and Content Developer
http://www.iementor.com

-----Original Message-----
From: "Alex Ouraev" <ualexv@gmail.com>
To: ccielab@groupstudy.com
Sent: 1/24/07 6:42 AM
Subject: RE: traffic delay insertion

I have used the following method to get close to production LD delay:

ip vrf 1
  rd 0:1

ip vrf 2
  rd 0:2

int tun 1
  ip vrf forwarding 1
  ip add 10.0.0.1 255.255.255.0
  tunnel source 5.0.0.1
  tunnel destination 5.0.0.2
  ip mtu 1500

int tun 2
  ip vrf forwarding 2
  ip add 10.0.0.2 255.255.255.0
  tunnel source 5.0.0.2
  tunnel destination 5.0.0.1
  ip mtu 1500

int loop 0
  ip add 5.0.0.1 255.255.255.0
  ip add 5.0.0.2 255.255.255.0 secondary

Note:

  1. int loop 0 ins not included into any vrf
  2. default ip mtu for a tunnel = 1490. ip mtu 1500 fixes that

Routing within:

router eigrp 100
  address-famuly ipv4 vrf 1
  network 10.0.0.0
  no auto-summary
  autonomous-system 100

  address-famuly ipv4 vrf 2
  network 10.0.0.0
  no auto-summary
  autonomous-system 100

etc.

Debug:

sh ip route vrf 1|2
ping vrf 1|2
sh ip eigrp vrf 1|2 neigh
etc...

HTH

Alex

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Pat
Sent: Tuesday, January 23, 2007 11:26 PM
To: Group Study
Subject: traffic delay insertion

Hi GS,
I don't believe this function exists at all, but just to double-check,
in case I missed something simple.

Background: Delay insertion was desired in a lab environment to
simulate production network delay form City A to City B.

Thanks!
Pat
#16228



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