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looking for pass4sure 642-681

Wed, 10 Mar 2010 15:16:17 +0600

Hi all,

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Thank you all,

Tuyennh@gmail.com

introduction

Sun, 14 Feb 2010 23:34:17 +0600

hi everyone....

Hi All

Sat, 30 Jan 2010 08:46:49 +0600

Hi, I'm new here. looking for a CBT.

Task 10.79 - Drop thresholds

Tue, 26 Jan 2010 18:18:29 +0600

Should be drop threshold be reversed (see the task for DSCP EF packets)?

E.g

NO: mls qos queue-set output 2 threshold 1 200 150 100 250

YES: mls qos queue-set output 2 threshold 1 150 200 100 250

As far as I know the higher the threshold for given DSCP is the lower probability for the packet to be dropped.

What's the point of having 200 before 150?

Tom

Posted on Tue, 26 Jan 2010 12:51:08 GMT at 103771.aspx
Comments: 103771.aspx

CCNA - COD

Tue, 26 Jan 2010 18:18:29 +0600

Started CCNA INE COD on 12/22/09 and finished CCNA exams on 12/31/09

CCNA COD was excellent and the only area I think that could use additional content is ACLs

On to CCDA/CCNP with INE materials

RTB

Posted on Sat, 09 Jan 2010 18:28:55 GMT at 102666.aspx
Comments: 102666.aspx

BGP remote-as issue

Tue, 26 Jan 2010 16:04:07 +0600

I found out following scenerio from cisco exam .However i cant able to find right answer .

Let suppose if I dont have access to R3 at all and dont know what been configured .only thing I know about R3 that it is in AS 3 .

Both AS are directly connected

R1
============
router bgp 1
no synchronization
bgp log-neighbor-changes
neighbor 10.1.1.3 remote-as 3
no auto-summary

R3 (This config is invisible to R1)
===============
router bgp 3
no synchronization
bgp log-neighbor-changes
neighbor 10.1.1.1 remote-as 36 ---> (Here is problem line) suppose to be AS 1 but it is wrongly configured
no auto-summar

Following log message poping up on R1 console
*Mar 1 00:57:42.919: %BGP-3-NOTIFICATION: received from neighbor 10.1.1.3 2/2 (peer in wrong AS) 2 bytes 0001

Problem can be solved by either using "neighbor 10.1.1.3 local-as 36" on R1 or changing R1 AS to 36 if i know what is configured on remote side but configration on R3 is not visible.

My question is what debug or show command will be required on R1 in order to find out that remote-as value 36 on R3??

Any help ??

Posted on Tue, 26 Jan 2010 10:38:41 GMT at 103766.aspx
Comments: 103766.aspx

Task 5.6

Tue, 26 Jan 2010 15:01:15 +0600

I will admit I am not an expert by far on BGP but I am questioning this task and I guess I am probably wrong to question it and I'm probably reading too much into things but please let me know if I am or not.

OK, we have AS100 on R1, R3 & R6 with R6 propagating a BGP community attribute to R1 and R3 in order to prevent this AS100 becoming a transit path for the rest of the network (this was all done back in task 5.2).

When we come to this task, we are playing with some more BGP devices in AS100 (SW3 & SW4). In this task 5.6 we want to allow SW3 and SW4 to recieve routes coming in from R1, R3 and R6 which are also in AS100 by using the "allow-as" feature. This concept to me is easy to understand and makes total sense.

My problem is this; in the SG I can see that once this allow-as feature is added, SW3 is suddenly recieving routes with AS54 in the AS Path even though we have denied these routes from propagating to the network in task 5.2 with the community attribute no-export!!!

When I labbed this up I did not get these AS54 routes on SW3 and I hope this is just an error in the SG. Please could someone kindly shed some light on this issue. Many thanks.

Posted on Thu, 26 Nov 2009 08:48:29 GMT at 77784.aspx
Comments: 77784.aspx

cisco ccie voice 3.0 home lab.

Tue, 26 Jan 2010 11:52:44 +0600

Dear All,

I have cisco 2811 routers - 2 Nos and cisco 2620xm router - 2 nos.

Can I use cisco 2620xm router in my ccie voice 3.0 home lab?

Which all additional modules will be required?

Regards

anil

Posted on Fri, 08 Jan 2010 21:03:32 GMT at 102570.aspx
Comments: 102570.aspx

Task 8.1

Tue, 26 Jan 2010 08:31:02 +0600

Can anyone help here

Im a bit confused on the CIR figure in this task CIR value

The Lab states CIR is 256k but the calculation used to get BC /BE values uses the CIR of 384k ?

Help ?

Posted on Mon, 14 Dec 2009 09:46:57 GMT at 93008.aspx
Comments: 93008.aspx

Task 10.78 - Results

Tue, 26 Jan 2010 08:31:02 +0600

I believe that verification outputs in solutions guide are not consistent with what we were supposed to configure:

However with this configuration my outputs are the same as in WB - see the weight for the queue 4 is 20 not 10.

SW1:

interface FastEthernet0/1
switchport access vlan 146
speed 10
srr-queue bandwidth share 1 10 20 1
srr-queue bandwidth shape 0 0 0 20
srr-queue bandwidth limit 20
priority-queue out
mls qos trust ip-precedence
end

R1:

Rack1R1#sh policy-map interface f0/0
FastEthernet0/0

Service-policy input: DETECT

    Class-map: DSCP_EF (match-all)
      30582 packets, 46301148 bytes
      30 second offered rate 255000 bps
      Match: dscp ef (46)

    Class-map: DSCP_0 (match-all)
      36414 packets, 55123796 bytes
      30 second offered rate 411000 bps
      Match: dscp default (0)

    Class-map: DSCP_AF21 (match-all)
      67203 packets, 101745342 bytes
      30 second offered rate 805000 bps
      Match: dscp af21 (18)

    Class-map: DSCP_AF41 (match-all)
      106323 packets, 160973022 bytes
      30 second offered rate 499000 bps
      Match: dscp af41 (34)

Tom

Posted on Tue, 26 Jan 2010 02:25:12 GMT at 103751.aspx
Comments: 103751.aspx

8.15 Auto-RP and RP/MA Placement

Tue, 26 Jan 2010 07:35:52 +0600

How can we make one mapping agent preempt another? I saw another post about lab 8.15 (http://ieoc.com/forums/t/6439.aspx) but it did not explain preemption.

Posted on Tue, 26 Jan 2010 02:11:37 GMT at 103750.aspx
Comments: 103750.aspx

etherchannel unbundeling and bundelling

Tue, 26 Jan 2010 07:35:52 +0600

We have following problem in our network, appreciate your help to resolve this issue asap. "

issue is the etherchannel unbundeling and bundelling, the etherchannels are for vlan 22,33,44, each 7600 is root bridge for its vlan, e.g. TC1A-RR-C7K6-1 is the root bridge for vlan 22 and so forth, now, only the etherchannel between foundry and 4924G switch having VLANs 22,33,44 goes down and all the ports 4x1G, leave and join the etherchannel, if you require any additioanl information please do let me know.

Thanks in advance

Posted on Tue, 26 Jan 2010 02:00:39 GMT at 103749.aspx
Comments: 103749.aspx

6.2 DoS

Tue, 26 Jan 2010 06:59:46 +0600

Hello,

Could anyone tell me why this vlan acl is not configured also to SW2, since R6 and BB2 are connected there?

Posted on Sat, 31 Oct 2009 13:31:09 GMT at 59958.aspx
Comments: 59958.aspx

Internetwork Sample labs

Tue, 26 Jan 2010 06:59:46 +0600

I have downloaded sample lab from internetwork expert for dynagen and dynampis but they are not working, i have tried in my PCs which am using vista and xp, but still am facing the same problem, and this is the error am getting, although i did everything correctly.

Reading configuration file...

*** Warning: Could not set working directory to C:\Program Files\Dynamips\samp

e_labs\internetworkexpert\working on server localhost:7200

*** Warning: Could not connect to dynamips server localhost:7201

*** Warning: Connecting R1 S1/0 to FRSW 1 resulted in:

nonexistent device FRSW

*** Warning: Connecting R2 F0/0 to SW2 F1/2 resulted in:

nonexistent device SW2

*** Warning: Connecting R2 S1/0 to FRSW 2 resulted in:

nonexistent device FRSW

*** Warning: Connecting R3 S1/0 to FRSW 3 resulted in:

nonexistent device FRSW

*** Warning: Connecting R3 S1/1 to FRSW 13 resulted in:

nonexistent device FRSW

*** Warning: Connecting R3 E0/1 to SW3 F1/3 resulted in:

nonexistent device SW3

*** Warning: Connecting R4 E0/0 to SW2 F1/4 resulted in:

nonexistent device SW2

*** Warning: Connecting R4 E0/1 to SW4 F1/4 resulted in:

nonexistent device SW4

*** Warning: Connecting R4 S1/0 to FRSW 4 resulted in:

nonexistent device FRSW

*** Warning: Connecting R5 E0/1 to SW3 F1/5 resulted in:

nonexistent device SW3

*** Warning: Connecting R5 S1/0 to FRSW 5 resulted in:

nonexistent device FRSW

*** Warning: Connecting R6 E0/0 to SW2 F1/6 resulted in:

nonexistent device SW2

*** Warning: Connecting R6 E0/1 to SW4 F1/6 resulted in:

nonexistent device SW4

*** Warning: Connecting R6 S1/0 to FRSW 6 resulted in:

nonexistent device FRSW

*** Warning: Connecting SW1 F1/7 to SW2 F1/7 resulted in:

nonexistent device SW2

*** Warning: Connecting SW1 F1/8 to SW2 F1/8 resulted in:

nonexistent device SW2

*** Warning: Connecting SW1 F1/9 to SW2 F1/9 resulted in:

nonexistent device SW2

*** Warning: Connecting SW1 F1/10 to SW3 F1/7 resulted in:

nonexistent device SW3

*** Warning: Connecting SW1 F1/11 to SW3 F1/8 resulted in:

nonexistent device SW3

*** Warning: Connecting SW1 F1/12 to SW3 F1/9 resulted in:

nonexistent device SW3

*** Warning: Connecting SW1 F1/13 to SW4 F1/7 resulted in:

nonexistent device SW4

*** Warning: Connecting SW1 F1/14 to SW4 F1/8 resulted in:

nonexistent device SW4

*** Warning: Connecting SW1 F1/15 to SW4 F1/9 resulted in:

nonexistent device SW4

*** Error: errors during loading of the topology file, please correct them

Press ENTER to continue

any ideas please.

Posted on Tue, 26 Jan 2010 00:59:45 GMT at 103745.aspx
Comments: 103745.aspx

8.13 Auto-RP - Filtering Candidate RPs

Tue, 26 Jan 2010 05:43:28 +0600

Can anyone please explain to me the point of this task? 224.110.110.110 is already negatively cached and will always be dense mode. What purpose does filtering it from R4 serve? Or is it solely for demonstration purposes?

Thanks.

Posted on Tue, 04 Aug 2009 23:20:34 GMT at 30557.aspx
Comments: 30557.aspx

Release date for V3 Advanced CoD videos?

Tue, 26 Jan 2010 03:39:12 +0600

I know Adv CoD was removed from the INE Voice section while the videos are updated for V3. Any idea when the new videos will be available for purchase?

Posted on Fri, 06 Nov 2009 03:09:20 GMT at 62875.aspx
Comments: 62875.aspx

2.2 Redistribution-VLAN 162

Tue, 26 Jan 2010 03:10:22 +0600

Hi,

Did not understand why we specifically redistributing only the VLAN 162 in R3. Any help will be great.

Regards

Posted on Mon, 25 Jan 2010 21:28:28 GMT at 103736.aspx
Comments: 103736.aspx

Carrier Supporting Carrier (IBGP, Update Source Loopback0?)

Tue, 26 Jan 2010 02:34:18 +0600

I know that you don't have to, but is there any reason that you wouldn't peer from loopbacks for IBGP? I noticed that in the "Carrier Supporting Carrier" labs that the intra AS peers don't use the loopbacks. I guess this saves you from having to advertise loopbacks in the IGP?

Posted on Mon, 25 Jan 2010 20:52:31 GMT at 103730.aspx
Comments: 103730.aspx

NTP sanity checks

Tue, 26 Jan 2010 01:45:37 +0600

Hi,

While working with NTP, I see NTP failing the NTP sanity checks and some routers not synchronizing with R6. I've looked through the documentation and have not found any clear answer on how to troubleshoot this issue.

Could someone point me in the right direction?

Thx

Posted on Fri, 15 Jan 2010 03:51:22 GMT at 103037.aspx
Comments: 103037.aspx

PPPoE and DHCP

Tue, 26 Jan 2010 01:45:37 +0600

I see one interesting behavior when the PPPoE client is trying to get an IP from the PPPoE server via DHCP, if the DHCP pool has exception configured and has only 1 address available for the client in the DHCP pool, a lot of times the client cannot get this ip address. If I reload both routers at this point, the client can always get the desired IP. If I change the exception rule to have 2 addresses available, the client can always get one IP. Or if I use local pool (only 1 address in the pool) on the server instead of the DHCP pool, the client can always get that IP.

Anybody has a clue why? I tried clear ip dhcp bindings, and clear the PPPoE session, but didn't help. I don't like reloading the routers just because of this

Thanks,

Posted on Mon, 25 Jan 2010 20:24:52 GMT at 103728.aspx
Comments: 103728.aspx