AI, ML, Development + Cisco Learning Blog Learning about Machine Learning, Artificial Intelligence, related devlopment topics and formerly Routing and Switching, Datacenter, Security and other topics, CCIE #23664, Frank Wagner

10. März 2007

CTS Installation and setting it up

Filed under: Allgemein — ocsic @ 09:27

We did one CTS 1000 and one CTS 3000 system in about two days with 10 people. 5 handcraftsmen builing the CTS 3000 system. The have been doing this for the last month nonstop. So i think they did a new record and building this up. I had seen this as very good teamwork. The have been great. Normaly for a good team you need about 2 to three days. But they made it in about 1 day.
It’s including two callmanager 5.1 installations and a telepresence manager (CTM).

Over the last days i worked together with two guys from british telecom and three from cisco, what was a good experiance for me.
It was quite interesting and i think i learned a lot. Last evening a 9 pm we got it working the first time between the two customer sites. It was a little bit like the first moon landing „Houston Houston…. the outpost is connected to the world. I think it a great tv experiance. It’s sexy. 🙂

I will try to upload some more pictures in the future.

CTS 1000 screen

7. März 2007

RA Room Assessment / CTS

Filed under: TelePresence — ocsic @ 23:59

Currently doing the room assessment for the CTS 3000. The room is new designed and equipped only for the CTS 3000 system. There is a light and sound measurement. AC is needed for the whole room, because the three plasma displays and the code will produce a lot of heat. The whole system need about 8000 Wats. Here is a first picture of the room for the CTS 3000. We will start to assemble a 1000 and a 3000 system tomorrow. The 1000 should take about 1 day, but the 3000 will be about 3-5 workdays. We will do that in a team with cisco together.

CTS 3000

23. Februar 2007

Cisco TelePresence

Filed under: TelePresence — ocsic @ 23:39

Currently i’m in the respone of installing the first telepresence system in europe. Yesterday we meet with three cisco technicans near munich at the customers site and prepared the ready assessment for the room. It’s a CTS 1000 and CTS 3000 system. The 1000 system is the small one with only one plasma display and the 3000 system is the one with 3 plasma displays. Cisco does a lot in preparing the room to meet the requirements. Sound, light and apearance is very important. There have to be a lot of measurements to be done. It will be cisco’s first installation in europe.

So currently i’m in the response of assembling the CTS system at three different places. Two in Germany and one in France (Paris).

I’m now one month of from learning. Work does take a lot of time. But i hope i will be able to get back soon to learning.
Source:

cisco.com/go/telepresence

http://www.cisco.com/en/US/products/ps7060/products_category_technologies_overview.html

CTS 3000

http://www.cisco.com/en/US/products/ps7087/index.html

CTS 1000

http://www.cisco.com/en/US/products/ps7146/index.html

20. Februar 2007

dynamips and local connectivity / bridging with linux

Filed under: dynamips — ocsic @ 08:18

Hi, i had really a hard time to get this working. I tried to make the local PC interface reachable by the dynamips router and could not succeed. But i gladly found a solution, that works. Someone on http://hacki.at/7200emu figured it out.

——————————————————————————————

Content of the post (order of these steps seem to be important!!!)

1.Download bridge-utils – If you have Ubuntu or Debian simply do apt-get install bridge-utils
Or download from here http://linux-net.osdl.org/index.php/Bridge
2.Remove ip address on eth0 – ifconfig eth0 0.0.0.0
shutdown eth0 – ifconfig eth0 down
3.Create bridge – brctl addbr br0
assign ip address to bridge – ifconfig br0 netmask
4.Bridging tap0 in Dynampis config.net
e0/0 = NIO_tap:tap0
5.Start Dynamips/vpod

6.Bridging eth0 and tap0 to br0
brctl addif br0 eth0
brctl addif br0 tap0
7.Bringing all interfaces up
ifconfig br0 up
ifconfig eth0 up
ifconfig tap0 up
8.Logging on to the router with the bridged interface and assigning ip address in the same network/subnet as br0

——————————————————————————————

Look at this. 192.168.2.1 is a local vmnet (vmware) interface.

Rack1R6#ping 192.168.2.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/34/60 ms
Rack1R6#

Now i can also use all kinds of software on my local pc to test with dynamips. That’s really great. For example you can use a local syslog server or a radius server for authentication. I will try to configure a local freeradius server with dynamips.

Source:

http://hacki.at/7200emu/viewtopic.php?t=669&highlight=arp

18. Januar 2007

dynagen tuning / idlepc values

Filed under: dynamips — ocsic @ 16:34

I had to adjust the idlepc values for dynamips.

This is how you do it.

First try to figure out, if there are some presets in the dynagen.net ini file for all routers or for single routers. If there are preconfigured values, these values are likely not to match your current system.

Uncomment them and calculted your own.

This can be done by starting dynagen:

fu@lap:~/internetworkexpert> dynagen router-config.net

Reading configuration file…

Network successfully started

Dynagen management console for Dynamips

=> start R1
100-C3600 ‚R1‘ started
=> idlepc get R1
Please wait while gathering statistics…
Select the values that match your system best.

Starting „xosview“ for example, gives you an impression on how the improvement will be.

I adjusted each router one by one. Improvment was for me by falling from 100% cpu usage to about 20% for one router.
When adjusted the new value should be saved with „idlepc save R1“, then it’s stored in the config file.

I can start all 13 instances with 2 GB Ram. Things take a while on my 1.6 Mhz mobile processor, but they will start up. I haven’t done testing complex labs until now. But this will follow in a few days.

dynamips / dynagen IE v4 switch setup

Filed under: dynamips — ocsic @ 15:35

I have done some documenting the new switch layout someone posted on groupstudy.

Switch topology
These are the crossover connections for the four switches.

Here is the corresponding dynagen configfile:

###############################################################################
#
# Internetwork Expert Routing & Switching topology mappings for dynamips/dynagen
# by: Brian McGahan, CCIE #8593
# bmcgahan@internetworkexpert.com
#
# For more information:
# Dynamips: http://www.ipflow.utc.fr/index.php/Cisco_7200_Simulator
# Dynagen: http://dyna-gen.sourceforge.net/
# Hackis Forum: http://hacki.at/7200emu/index.php
# Internetwork Expert’s Forum: http://forum.internetworkexpert.com
#
###############################################################################

##################################################
#
# Define global router parameters for instance 1
#
##################################################

autostart = False
[localhost:7200]

workingdir = /home/frank/internetworkexpert/working

ghostios = true

[[3640]]
#
# Specify 3640 IOS image on Windows here:
#image = C:\Program Files\Dynamips\images\c3640-jk9o3s-mz.123-14.T7.extracted.bin
image = /opt/dyna/image
#
# Specify 3640 IOS image on Linux here:
# image = /ios/c3640-jk9o3s-mz.123-14.T7.extracted.bin
#
ram = 128
disk0 = 0
disk1 = 0
# Choose an idlepc value from the below
# idlepc = 0x60530870
# idlepc = 0x60530890
# idlepc = 0x60530a58
# idlepc = 0x60530abc
# idlepc = 0x605310c4
# idlepc = 0x605e92e8
# idlepc = 0x605e9364
# idlepc = 0x60531394
# idlepc = 0x605313d0
# idlepc = 0x605313ec
mmap = True

###########################
#
# Define router instances
#
###########################

[[Router R1]]
model = 3640
autostart = False
slot0 = NM-1FE-TX
slot1 = NM-4T
F0/0 = SW1 F1/1
S1/0 = FRSW 1
cnfg = /home/frank/internetworkexpert/initial.configs/R1.initial.config.txt
idlepc = 0x6042a3ac

[[Router R2]]
model = 3640
autostart = False
slot0 = NM-1FE-TX
slot1 = NM-4T
F0/0 = SW1 F1/2
S1/0 = FRSW 2
cnfg = /home/frank/internetworkexpert/initial.configs/R2.initial.config.txt
idlepc = 0x6042a3ac

[[Router R3]]
model = 3640
autostart = False
slot0 = NM-4E
slot1 = NM-4T
S1/0 = FRSW 3
S1/1 = FRSW 13
S1/2 = R1 S1/1
S1/3 = R2 S1/1
E0/0 = SW1 F1/3
E0/1 = SW3 F1/3
cnfg = /home/frank/internetworkexpert/initial.configs/R3.initial.config.txt
idlepc = 0x6042a3ac

[[Router R4]]
model = 3640
autostart = False
slot0 = NM-4E
slot1 = NM-4T
E0/0 = SW2 F1/4
E0/1 = SW4 F1/4
S1/0 = FRSW 4
S1/1 = R5 S1/1
cnfg = /home/frank/internetworkexpert/initial.configs/R4.initial.config.txt
idlepc = 0x605570dc

[[Router R5]]
model = 3640
autostart = False
slot0 = NM-4E
slot1 = NM-4T
E0/0 = SW1 F1/5
E0/1 = SW3 F1/5
S1/0 = FRSW 5

cnfg = /home/frank/internetworkexpert/initial.configs/R4.initial.config.txt
idlepc = 0x60555cc0

[[Router R6]]
model = 3640
autostart = False
slot0 = NM-4E
slot1 = NM-4T
E0/0 = SW2 F1/6
E0/1 = SW4 F1/6
S1/0 = FRSW 6
cnfg = /home/frank/internetworkexpert/initial.configs/R5.initial.config.txt         idlepc = 0x60555efc          [[Router SW1]]         model = 3640         autostart = False         slot1 = NM-16ESW         slot2 = NM-16ESW         F2/1 = SW2 F2/1         F2/2 = SW2 F2/2         F2/3 = SW2 F2/3         F2/4 = SW3 F2/1         F2/5 = SW3 F2/2         F2/6 = SW3 F2/3         F2/7 = SW4 F2/1         F2/8 = SW4 F2/2         F2/9 = SW4 F2/3         cnfg = /home/frank/internetworkexpert/initial.configs/R6.initial.config.txt         idlepc = 0x60555efc   ################################################## # # Define global router parameters for instance 2 # ##################################################  [localhost:7201]    # Talk to the 2nd dynamips process on port 7201     udp = 11000    # Change the base udp port to 11000 (the default is 10000)           workingdir = /home/frank/internetworkexpert/working          [[3640]]         #         # Specify 3640 IOS image on Windows here:         #image = C:Program FilesDynamipsimagesc3640-jk9o3s-mz.123-14.T7.extracted.bin         image = /opt/dyna/image         #         # Specify 3640 IOS image on Linux here:         # image = /ios/c3640-jk9o3s-mz.123-14.T7.extracted.bin         #         ram = 128         disk0 = 0         disk1 = 0         # Choose an idlepc value from the below         # idlepc = 0x60530870         # idlepc = 0x60530890         # idlepc = 0x60530a58         # idlepc = 0x60530abc         # idlepc = 0x605310c4         # idlepc = 0x605e92e8         # idlepc = 0x605e9364         # idlepc = 0x60531394         # idlepc = 0x605313d0         # idlepc = 0x605313ec         mmap = True               ###########################     #     # Define router instances     #     ###########################          [[Router SW2]]         model = 3640         console = 2007         autostart = False         slot1 = NM-16ESW         slot2 = NM-16ESW         F2/4 = SW3 F2/4         F2/5 = SW3 F2/5         F2/6 = SW3 F2/6         F2/7 = SW4 F2/4         F2/8 = SW4 F2/5         F2/9 = SW4 F2/6         cnfg = /home/frank/internetworkexpert/initial.configs/SW2.initial.config.txt         idlepc = 0x60555cc0          [[Router SW3]]         model = 3640         console = 2011         autostart = False         slot1 = NM-16ESW         slot2 = NM-16ESW         F2/7 = SW4 F2/7         F2/8 = SW4 F2/8         F2/9 = SW4 F2/9         cnfg = /home/frank/internetworkexpert/initial.configs/SW3.initial.config.txt         idlepc = 0x60555c98          [[Router SW4]]         model = 3640         console = 2012         autostart = False         slot1 = NM-16ESW         slot2 = NM-16ESW         cnfg = /home/frank/internetworkexpert/initial.configs/SW4.initial.config.txt         idlepc = 0x60555e8c               [[Router BB1]]         model = 3640         console = 2008         autostart = False         slot1 = NM-4T         S1/0 = BB3 S1/0         S1/1 = FRSW 21         cnfg = /home/frank/internetworkexpert/initial.configs/BB1.initial.config.txt         idlepc = 0x60521bc8          [[Router BB2]]         model = 3640         console = 2009         autostart = False         slot0 = NM-4E         E0/0 = SW2 F1/10         cnfg = /home/frank/internetworkexpert/initial.configs/BB2.initial.config.txt         idlepc = 0x60521bc8          [[Router BB3]]         model = 3640         console = 2010         autostart = False         slot0 = NM-4E         slot1 = NM-4T         E0/0 = SW1 F1/10         cnfg = /home/frank/internetworkexpert/initial.configs/BB3.initial.config.txt         idlepc = 0x605568e8          #    [[Router TermServ]]     #        model = 3640     #        console = 2012     #        autostart = False     #     # Specify your local host's loopback here from the network device list     # Too add a loopback in windows:     # http://support.microsoft.com/kb/839013     #     # E0/0 = NIO_gen_eth:DeviceNPF_{4065B11C-2A6C-4FD2-8204-A12A9A8328A4}     #        cnfg = /home/frank/internetworkexpert/initial.configs/TermServ.initial.config.txt
[[FRSW FRSW]]
# R1 to FRSW
1:102 = 2:201
1:103 = 3:301
1:113 = 13:311
1:104 = 4:401
1:105 = 5:501
# R2 to FRSW
2:203 = 3:302
2:213 = 13:312
2:204 = 4:402
2:205 = 5:502
# R3 to FRSW
3:304 = 4:403
3:305 = 5:503
13:314 = 4:413
13:315 = 5:513
# R4 to FRSW
4:405 = 5:504
# R6 to FRSW
6:51 = 21:51
6:100 = 21:100
6:101 = 21:101
6:201 = 21:201
6:301 = 21:301
6:401 = 21:401

Failed on my first attempt in Bruessels

Filed under: Allgemein — ocsic @ 15:28

It’s now three days in the past, when i failed on my first attempt in the R&S Lab. It was a very nice expirience and i will try it again. The proctor was very helpful. His name was Stephan. Want to thank for his engagement.
Currently i sell my whole home rack on ebay and switch to dynamips completly. I can’t do working as much as the last times on my own rack and things will fall in value quickly so i decided to do that.

I will still have access to real routing and switching equipment at work. And for learning i have tested dynamips so far and it seems it’s good for configuring and testing. I have currently even tested the new IE v4 lab topology and all routers are running and are ready to go. I start them on an Samsung notebook with 1.6Mhz. I have 2 GB Ram installed though.

12. Januar 2007

ntp auth

Filed under: IP and IOS Features — ocsic @ 15:49

Server 192.10.1.254 with authentication

Rack1R1#s | inc ntp
ntp authentication-key 1 md5 02252D682829 7
ntp authenticate
ntp trusted-key 1
ntp server 192.10.1.254 key 1

Rack1R1#sh ntp ass de
192.10.1.254 configured, authenticated, our_master, sane, valid, stratum 4
ref ID 127.127.7.1, time AF7D0BB5.1F58ABC8 (11:29:57.122 UTC Mon Apr 19 1993)
our mode client, peer mode server, our poll intvl 64, peer poll intvl 64
root delay 0.00 msec, root disp 0.03, reach 360, sync dist 3.479
delay 6.52 msec, offset -0.1136 msec, dispersion 16000.00
precision 2**18, version 3
org time AF7D0BBA.91DA71F5 (11:30:02.569 UTC Mon Apr 19 1993)
rcv time AF7D0BBA.92AD5CD9 (11:30:02.572 UTC Mon Apr 19 1993)
xmt time AF7D0BBA.903C38FA (11:30:02.563 UTC Mon Apr 19 1993)
filtdelay = 0.00 0.00 7.51 6.52 6.73 9.09 7.35 7.02
filtoffset = 0.00 0.00 0.44 -0.11 -0.04 1.14 0.03 -0.10
filterror = 16000.0 16000.0 0.08 0.09 0.11 0.12 0.14 0.15

configuring access to ntp servers
if acting as an ntp server only for clients in the access-list 1
ntp access-group serve-only 1

11. Januar 2007

Cisco Assessor Lab

Filed under: Lab — ocsic @ 14:53

I tried the Cisco Assessor lab from Labgear, Technology Networks, and found it very interesting. The userinterface is not really good and makes things quite difficult, but if you want to get an idea on how it could be in teh lab, this is a good starting point.

I did both labs and the secound lab also has four siwtches in the topology. Also the mixture with 3550 and 3560’s.

There is an AutoVerify you can run during the session to watch, if your answers have been correct and which part of the questions haven’t been or what is missing still.

After the four hour lab, you have two hours to check the solutions.

More details:

http://www.cisco.com/web/learning/le3/ccie/preparation/assessor_details.html

dynamips / dynagen

Filed under: Lab — ocsic @ 14:50

I have teste dynamips on both XP and Linux, but i starting about 10 routers is quite slow. I have not found a solution, which could speed things up. I thought about using this as a substitute for rack access, but i don’t thnik it will do it for now. Things are to slow, or maybe someone knows how to speed up things.

I have read that using a 3660 for the switching features would be better, but i haven’t tested it yet, since there is not configuration for it, for the IE setup.

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