CCNA lab: Is this posible? I need your help.

mikej412

thehourman wrote: »

None of any ports in NM-4A/S are showing in show cdp neighbors command

Since the cables work when attached to the WICs and you're saying everything else works when it isn't connected to the NM-4A/S, then you probably have a bad NM-4A/S -- irregardless of whatever the LEDs show (I'm assuming they were lit as expected since you never mentioned them).

If you take one of your working cables and plug it into 2 ports on the NM-4A/S and no shut both ports with no other configuration (except clock rate) and still can't see any cdp connections, it sounds like a bad NM-4A/S (since you verified HDLC works on a WIC card and the NM-4A/S didn't work in a different router with a different IOS).

thehourman wrote: »

notgoing2fail and I tried to do ppp last night, but did not work either. I have also tried to use all the clocks available on NM-4A/S and it is still nothing.

If the port isn't working, any configuration you try using the port wouldn't work either. I never did figure out why you were trying PPP with authentication if you hadn't verified the lower levels of the OSI model were working.

Here's a 3640 with an NM-4A/S in slot 3.....

Any existing configuration on the ports are removed....

R3640-3#config t
Enter configuration commands, one per line.  End with CNTL/Z.
R3640-3(config)#default interface serial 2/0
Building configuration...

Interface Serial2/0 set to default configuration
R3640-3(config)#default interface serial 2/1
Building configuration...

Interface Serial2/1 set to default configuration
R3640-3(config)#

Line shows up, protocol down

R3640-3#show ip int brief
Interface                  IP-Address      OK? Method Status                Protocol
...
...
Serial2/0                  unassigned      YES TFTP   up                    down
Serial2/1                  unassigned      YES TFTP   up                    down
...

Can't see any neighbors on the serial link....

R3640-3#show cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
S3550-1          Fas 0/0            130        R S I      WS-C3550-4Fas 0/3
S3550-2          Fas 1/0            169        R S I      WS-C3550-2Fas 0/3
S3750-1          Fas 3/0            125        R S I      WS-C3750-2Fas 1/0/4

Let's set the clocking.... I didn't check which end is DCE, so I'll try clock rate on any interface until I find one that takes it

R3640-3(config)#interface serial2/0
R3640-3(config-if)#clock rate 64000
%Error: This command applies only to DCE interfaces
R3640-3(config)#interface serial 2/1
R3640-3(config-if)#clock rate 64000
R3640-3(config-if)#end

Give the serial interfaces some time to do their thing and let CDP do it's thing (about a minute or so....) and eventually you should see something like this (if your NM-4A/S is working).

R3640-3#show cdp neighbor
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
S3550-1          Fas 0/0            122        R S I      WS-C3550-4Fas 0/3
[B]R3640-3          Ser 2/0            77         R S I      3640      Ser 2/1
R3640-3          Ser 2/1            77         R S I      3640      Ser 2/0[/B]
S3550-2          Fas 1/0            162        R S I      WS-C3550-2Fas 0/3
S3750-1          Fas 3/0            178        R S I      WS-C3750-2Fas 1/0/4
R3640-3#

If the cable works between 2 WICs, but you can't get 2 ports on the NM-4A/S to see each other (only configuring the no shut & clock rate), then it's a NM-4A/S issue.

thehourman

I just made a new network. I attached the pic with this post.
All the WIC-1Ts are working. When I used the show cdp neighbors every devices show up.
Here no NM-4A/S, and everything is working just fine.

So is it 100% sure that my NM-4A/S is busted?
I mean the thing seems to be working, and it can detect what cable I plug to it. But it cannot hold the up up for a long time.

EDIT:
How do I fixed my terminal because the characters turned into weird ones?

mikej412

thehourman wrote: »

So is it 100% sure that my NM-4A/S is busted?

You'd have to make that call since you never answered most of the questions I asked or "showed any work."

thehourman

I followed your examples, but it can't see the other devices, it can see the switch and R2.

mikej412

thehourman wrote: »

I followed your examples, but it can't see the other devices, it can see the switch and R2.

And I can't see any of your devices -- WHAT can see the switch? R1 or R4/FRAMERELAY? WHAT can see R2 -- R1 or R4/FRAMERELAY?

You haven't provided enough information to rule out a Layer 8 issue.

thehourman

R4 s1/0(DCE) is connected to R1's s0/1:
This is from R1.

R1#show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
SW1              Fas 0/0            161         S I       WS-C2950G Fas 0/12
R2               Ser 0/0            158          R        2620      Ser 0/0
R1#

(The name FRAMERELAY is changed to R4)

R4#show cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port  ID
R4#

notgoing2fail

mikej412 wrote: »

and i can't see any of your devices -- what can see the switch? R1 or r4/framerelay? What can see r2 -- r1 or r4/framerelay?

you haven't provided enough information to rule out a layer 8 issue.

lol!!!!!!!

mikej412

thehourman wrote: »

(The name FRAMERELAY is changed to R4)

Okay -- for the 3rd time -- the LEDs on the NM-4A/S show what?

And since all the problems seem to occur when the NM-4A/S is involved -- and as far as I can tell you've never had a working connection from any port of the NM-4A/S -- did you ever do the "connect 2 ports on the NM-4A/S together" like I mentioned (and showed) in this post:
http://www.techexams.net/forums/ccna-ccent/53647-ccna-lab-posible-i-need-your-help-2.html#post405252

thehourman

And since all the problems seem to occur when the NM-4A/S is involved -- and as far as I can tell you've never had a working connection from any port of the NM-4A/S -- did you ever do the "connect 2 ports on the NM-4A/S together" like I mentioned (and showed) in this post:
CCNA lab: Is this posible? I need your help.

Yes, i did.
The serial port 1/0 on NM-4A/S that connects to R1's 0/1 the LEDs are "cn/lp, rxc, txc, the last one(no label)"
The two ports that I connected are the s1/2 and s1/3. Nothing came up with show cdp neighbors.
The LEDs on s1/2 are "cn/lp, txc" on s1/3 "cn/lp, rxc, txc"

mikej412

thehourman wrote: »

Yes, i did.
The serial port 1/0 on NM-4A/S that connects to R1's 0/1 the LEDs are "cn/lp, rxc, txc, the last one(no label)"
The two ports that I connected are the s1/2 and s1/3. Nothing came up with show cdp neighbors.
The LEDs on s1/2 are "cn/lp, txc" on s1/3 "cn/lp, rxc, txc"

Okay. Any particular colors?

What about that BIG one on the RIGHT that says EN? Or is that the one by the screw with no label (or hidden by the cable)? GREEN? AMBER?
Serial Network Modules [Cisco Network Modules] - Cisco Systems

Do you see any LEDs flash every 10 seconds (or whatever you have the keepalive interval configured for)?

thehourman

All the LEDs are color green.

The one I said no label I was talking about the EN.

All the LEDs I mentioned earlier are all solid color exept:
The LED on s1/0 TXD flashes every 10 secs.
On s1/2 the TXD flashes as well every 10 secs.
However, on s1/3 the only LEDs left on are cn/pl and txd.